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

Summary | ZeroBOX

File_pass1234.7z

KeyLogger PWS Escalate priviledges AntiVM AntiDebug

Category	Machine	Started	Completed
FILE	s1_win7_x6402	May 23, 2023, 5:03 p.m.	May 23, 2023, 5:05 p.m.

Size	5.0MB
Type	7-zip archive data, version 0.4
MD5	`59bdba4300a7d636830fa3ff631a8ed0`
SHA256	`4f3628405a0f70087cd62e45235a2c5bce9919186cfbf446b5d6adf768420fe0`
CRC32	`E7807308`
ssdeep	`98304:zaI48sVbwE5eu/YOkUu9VvFHW7H1I4fQA5eNWvm4fXTaL9GFI:WBmOkUu/N25wA8NcBXTo`
Yara	None matched

cmd.exe "C:\Windows\System32\cmd.exe" /c start /wait "MZKTrTnPrSldCAnl" C:\Users\test22\AppData\Local\Temp\File_pass1234.7z
3052
- 7zFM.exe "C:\Program Files (x86)\7-Zip\7zFM.exe" "C:\Users\test22\AppData\Local\Temp\File_pass1234.7z"
  2184

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

IP Address	Status	Action
104.17.215.67	Active	Moloch
104.26.5.15	Active	Moloch
164.124.101.2	Active	Moloch
172.67.75.166	Active	Moloch
34.117.59.81	Active	Moloch
85.208.136.10	Active	Moloch
94.142.138.113	Active	Moloch

Suricata Alerts

Flow	SID	Signature	Category
TCP 175.208.134.153:57098 -> 192.168.56.102:5911	2002911	ET SCAN Potential VNC Scan 5900-5920	Attempted Information Leak
TCP 192.168.56.102:49174 -> 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 192.168.56.102:49174 -> 34.117.59.81:443	906200054	SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)	undefined
TCP 192.168.56.102:49174 -> 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 -> 172.67.75.166:443	906200054	SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)	undefined
TCP 192.168.56.102:49179 -> 104.17.215.67:443	906200054	SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)	undefined
TCP 192.168.56.102:49176 -> 104.26.5.15:443	906200054	SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)	undefined

Suricata TLS

Flow	Issuer	Subject	Fingerprint
TLSv1 192.168.56.102:49177 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 192.168.56.102:49176 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 23, 2023, 5:03 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 23, 2023, 5:03 p.m.		1	1	0

HTTP traffic contains suspicious features which may be indicative of malware related traffic (1 event)

suspicious_features

Connection to IP address

suspicious_request

GET http://85.208.136.10/api/tracemap.php

Performs some HTTP requests (4 events)

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

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 23, 2023, 5:03 p.m.	process_identifier: 2184 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 23, 2023, 5:03 p.m.	process_identifier: 2184 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x737e3000 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\7zE888131E3\File.exe

File has been identified by 8 AntiVirus engines on VirusTotal as malicious (8 events)

MicroWorld-eScan	Trojan.GenericKD.67157167
FireEye	Trojan.GenericKD.67157167
Arcabit	Trojan.Generic.D400BCAF
BitDefender	Trojan.GenericKD.67157167
Emsisoft	Trojan.GenericKD.67157167 (B)
McAfee-GW-Edition	Artemis
MAX	malware (ai score=88)
GData	Trojan.GenericKD.67157167

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

Time & API	Arguments	Status	Return	Repeated
LookupPrivilegeValueW May 23, 2023, 5:03 p.m.	system_name: privilege_name: SeRestorePrivilege	1	1	0
LookupPrivilegeValueW May 23, 2023, 5:03 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 (2 events)

host	85.208.136.10
host	94.142.138.113