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Guide 2020-06-10
Version history 2020-06-10

Summary | ZeroBOX

Install_pass1234.7z

KeyLogger PWS Escalate priviledges AntiVM AntiDebug

Category	Machine	Started	Completed
FILE	s1_win7_x6402	May 24, 2023, 6:22 p.m.	May 24, 2023, 6:25 p.m.

Size	5.0MB
Type	7-zip archive data, version 0.4
MD5	`32e0ddc0e3205817e4e2fecc5c7fd6aa`
SHA256	`1ebe1165bd9fcb741013519ca64642b7585574cb7eb74138ee25640c72538642`
CRC32	`02BCDDCF`
ssdeep	`98304:ECwJdnB042eJyBYNfdqHXxWYUJW+asJYANCIEdl3/WnCQmLXFaKqesZGTi2i7btg:2B0JeDqo49plNFaKMZWSbzM/`
Yara	None matched

cmd.exe "C:\Windows\System32\cmd.exe" /c start /wait "uzpXQDrkccTgNwRI" C:\Users\test22\AppData\Local\Temp\Install_pass1234.7z
3008
- 7zFM.exe "C:\Program Files (x86)\7-Zip\7zFM.exe" "C:\Users\test22\AppData\Local\Temp\Install_pass1234.7z"
  2212

Name	Response	Post-Analysis Lookup
db-ip.com	A 104.26.5.15 A 104.26.4.15 A 172.67.75.166	172.67.75.166
api.db-ip.com	A 104.26.5.15 A 104.26.4.15 A 172.67.75.166	104.26.5.15
www.maxmind.com	A 104.17.215.67 A 104.17.214.67	104.17.215.67
ipinfo.io	A 34.117.59.81	34.117.59.81

IP Address	Status	Action
104.17.214.67	Active	Moloch
104.17.215.67	Active	Moloch
104.26.4.15	Active	Moloch
104.26.5.15	Active	Moloch
164.124.101.2	Active	Moloch
172.67.75.166	Active	Moloch
208.67.104.60	Active	Moloch
34.117.59.81	Active	Moloch
5.181.80.133	Active	Moloch
85.208.136.10	Active	Moloch
94.131.106.196	Active	Moloch

Suricata Alerts

Flow	SID	Signature	Category
TCP 192.168.56.102:49175 -> 34.117.59.81:443	2025331	ET POLICY Possible External IP Lookup Domain Observed in SNI (ipinfo. io)	Device Retrieving External IP Address Detected
TCP 192.168.56.102:49175 -> 34.117.59.81:443	906200054	SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)	undefined
TCP 192.168.56.102:49175 -> 34.117.59.81:443	2025331	ET POLICY Possible External IP Lookup Domain Observed in SNI (ipinfo. io)	Device Retrieving External IP Address Detected
TCP 192.168.56.102:49177 -> 104.26.4.15:443	906200054	SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)	undefined
TCP 192.168.56.102:49180 -> 104.17.214.67:443	906200054	SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)	undefined
TCP 192.168.56.102:49175 -> 34.117.59.81:443	2025331	ET POLICY Possible External IP Lookup Domain Observed in SNI (ipinfo. io)	Device Retrieving External IP Address Detected
TCP 192.168.56.102:49189 -> 104.26.5.15:443	906200054	SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)	undefined
TCP 192.168.56.102:49190 -> 172.67.75.166:443	906200054	SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)	undefined
TCP 192.168.56.102:49187 -> 34.117.59.81:443	2025331	ET POLICY Possible External IP Lookup Domain Observed in SNI (ipinfo. io)	Device Retrieving External IP Address Detected
TCP 192.168.56.102:49187 -> 34.117.59.81:443	906200054	SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)	undefined
TCP 192.168.56.102:49187 -> 34.117.59.81:443	2025331	ET POLICY Possible External IP Lookup Domain Observed in SNI (ipinfo. io)	Device Retrieving External IP Address Detected
TCP 192.168.56.102:49187 -> 34.117.59.81:443	2025331	ET POLICY Possible External IP Lookup Domain Observed in SNI (ipinfo. io)	Device Retrieving External IP Address Detected
TCP 192.168.56.102:49178 -> 104.26.5.15:443	906200054	SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)	undefined
TCP 192.168.56.102:49192 -> 104.17.215.67:443	906200054	SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)	undefined
TCP 192.168.56.102:49187 -> 34.117.59.81:443	2025331	ET POLICY Possible External IP Lookup Domain Observed in SNI (ipinfo. io)	Device Retrieving External IP Address Detected
TCP 192.168.56.102:49175 -> 34.117.59.81:443	2025331	ET POLICY Possible External IP Lookup Domain Observed in SNI (ipinfo. io)	Device Retrieving External IP Address Detected

Suricata TLS

Flow	Issuer	Subject	Fingerprint
TLSv1 192.168.56.102:49177 104.26.4.15:443	C=US, O=Cloudflare, Inc., CN=Cloudflare Inc RSA CA-2	C=US, ST=California, L=San Francisco, O=Cloudflare, Inc., CN=sni.cloudflaressl.com	03:f8:79:dd:26:16:32:12:a4:33:99:34:af:f7:33:32:d5:e0:aa:e5
TLSv1 192.168.56.102:49189 104.26.5.15:443	C=US, O=Cloudflare, Inc., CN=Cloudflare Inc RSA CA-2	C=US, ST=California, L=San Francisco, O=Cloudflare, Inc., CN=sni.cloudflaressl.com	03:f8:79:dd:26:16:32:12:a4:33:99:34:af:f7:33:32:d5:e0:aa:e5
TLSv1 192.168.56.102:49190 172.67.75.166:443	C=US, O=Cloudflare, Inc., CN=Cloudflare Inc RSA CA-2	C=US, ST=California, L=San Francisco, O=Cloudflare, Inc., CN=sni.cloudflaressl.com	03:f8:79:dd:26:16:32:12:a4:33:99:34:af:f7:33:32:d5:e0:aa:e5
TLSv1 192.168.56.102:49178 104.26.5.15:443	C=US, O=Cloudflare, Inc., CN=Cloudflare Inc RSA CA-2	C=US, ST=California, L=San Francisco, O=Cloudflare, Inc., CN=sni.cloudflaressl.com	03:f8:79:dd:26:16:32:12:a4:33:99:34:af:f7:33:32:d5:e0:aa:e5

Checks if process is being debugged by a debugger (1 event)

Time & API	Arguments	Status	Return	Repeated
IsDebuggerPresent May 24, 2023, 6:22 p.m.			0	0

Checks amount of memory in system, this can be used to detect virtual machines that have a low amount of memory available (1 event)

Time & API	Arguments	Status	Return	Repeated
GlobalMemoryStatusEx May 24, 2023, 6:22 p.m.		1	1	0

HTTP traffic contains suspicious features which may be indicative of malware related traffic (3 events)

suspicious_features	Connection to IP address				suspicious_request	GET http://85.208.136.10/api/tracemap.php
suspicious_features	Connection to IP address				suspicious_request	GET http://5.181.80.133/api/tracemap.php
suspicious_features	Connection to IP address				suspicious_request	GET http://208.67.104.60/api/tracemap.php

Performs some HTTP requests (6 events)

request	GET http://85.208.136.10/api/tracemap.php
request	GET http://www.maxmind.com/geoip/v2.1/city/me
request	GET http://5.181.80.133/api/tracemap.php
request	GET http://208.67.104.60/api/tracemap.php
request	POST https://api.db-ip.com/v2/p31e4d59ee6ad1a0b5cc80695a873e43a8fbca06/self
request	GET https://db-ip.com/

Sends data using the HTTP POST Method (1 event)

request

POST https://api.db-ip.com/v2/p31e4d59ee6ad1a0b5cc80695a873e43a8fbca06/self

Allocates read-write-execute memory (usually to unpack itself) (2 events)

Time & API	Arguments	Status	Return	Repeated
NtProtectVirtualMemory May 24, 2023, 6:22 p.m.	process_identifier: 2212 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x74002000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory May 24, 2023, 6:22 p.m.	process_identifier: 2212 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73913000 process_handle: 0xffffffff	1	0	0

Looks up the external IP address (1 event)

domain

ipinfo.io

Creates executable files on the filesystem (1 event)

file	C:\Users\test22\AppData\Local\Temp\7zE4A83F0FC\Install.exe

Checks for the Locally Unique Identifier on the system for a suspicious privilege (2 events)

Time & API	Arguments	Status	Return	Repeated
LookupPrivilegeValueW May 24, 2023, 6:22 p.m.	system_name: privilege_name: SeRestorePrivilege	1	1	0
LookupPrivilegeValueW May 24, 2023, 6:22 p.m.	system_name: privilege_name: SeSecurityPrivilege	1	1	0

Yara rule detected in process memory (11 events)

description	PWS Memory				rule	Generic_PWS_Memory_Zero
description	Escalate priviledges				rule	Escalate_priviledges
description	(no description)				rule	DebuggerCheck__GlobalFlags
description	(no description)				rule	DebuggerCheck__QueryInfo
description	(no description)				rule	DebuggerHiding__Thread
description	(no description)				rule	DebuggerHiding__Active
description	(no description)				rule	ThreadControl__Context
description	(no description)				rule	SEH__vectored
description	Checks if being debugged				rule	anti_dbg
description	Bypass DEP				rule	disable_dep
description	Run a KeyLogger				rule	KeyLogger

Communicates with host for which no DNS query was performed (4 events)

host	208.67.104.60
host	5.181.80.133
host	85.208.136.10
host	94.131.106.196

Connects to IP addresses that are no longer responding to requests (legitimate services will remain up-and-running usually) (2 events)

dead_host	192.168.56.102:49173
dead_host	94.131.106.196:80