Report - topboix.scr

Antivirus AsyncRAT backdoor
ScreenShot
Created 2021.03.25 19:19 Machine s1_win7_x6401
Filename topboix.scr
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
6
Behavior Score
13.8
ZERO API file : malware
VT API (file) 18 detected (malicious, high confidence, Save, ZemsilF, dm1@aeWDA9hi, Kryptik, Eldorado, FileRepMetagen, Siggen12, AgentTesla, score, QVM03)
md5 fb9211bd03036666dcc42cf977c25bee
sha256 2866f5ec70ebbefba6db86a947187a4d283b099e25cca3c25e4e9e21f821c713
ssdeep 768:/pwmYRnVbNGYmY0NYdYKMcuTkJmjH4ODVaCzWDNs0FRIQoGfl3lGflvx/FIwJGuQ:qVRJNGYmY0NYdYKnuI4H4hAsFbQ
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (30cnts)

Level Description
danger Connects to an IP address that is no longer responding to requests (legitimate services will remain up-and-running usually)
danger Executed a process and injected code into it
warning Disables Windows Security features
watch Allocates execute permission to another process indicative of possible code injection
watch Code injection by writing an executable or DLL to the memory of another process
watch File has been identified by 18 AntiVirus engines on VirusTotal as malicious
watch Potential code injection by writing to the memory of another process
watch Resumed a suspended thread in a remote process potentially indicative of process injection
watch The process powershell.exe wrote an executable file to disk
watch Used NtSetContextThread to modify a thread in a remote process indicative of process injection
notice A process created a hidden window
notice Allocates read-write-execute memory (usually to unpack itself)
notice Checks adapter addresses which can be used to detect virtual network interfaces
notice Checks for the Locally Unique Identifier on the system for a suspicious privilege
notice Creates a shortcut to an executable file
notice Creates a suspicious process
notice Drops a binary and executes it
notice Drops an executable to the user AppData folder
notice HTTP traffic contains suspicious features which may be indicative of malware related traffic
notice Moves the original executable to a new location
notice One or more potentially interesting buffers were extracted
notice Performs some HTTP requests
notice Uses Windows utilities for basic Windows functionality
notice Yara rule detected in process memory
info Checks amount of memory in system
info Checks if process is being debugged by a debugger
info Command line console output was observed
info One or more processes crashed
info Queries for the computername
info Uses Windows APIs to generate a cryptographic key

Rules (21cnts)

Level Name Description Collection
watch Antivirus Contains references to security software binaries (download)
info DebuggerCheck__GlobalFlags (no description) memory
info DebuggerCheck__QueryInfo (no description) memory
info DebuggerHiding__Active (no description) memory
info DebuggerHiding__Thread (no description) memory
info disable_dep Bypass DEP memory
info IsPE32 (no description) binaries (download)
info IsPE32 (no description) binaries (upload)
info PE_Header_Zero PE File Signature Zero binaries (download)
info PE_Header_Zero PE File Signature Zero binaries (upload)
info SEH__vectored (no description) memory
info ThreadControl__Context (no description) memory
info HasOverlay Overlay Check binaries (download)
info HasOverlay Overlay Check binaries (upload)
info IsNET_EXE (no description) binaries (download)
info IsNET_EXE (no description) binaries (upload)
info IsWindowsGUI (no description) binaries (download)
info IsWindowsGUI (no description) binaries (upload)
info network_tcp_listen Listen for incoming communication memory
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (download)
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)

Network (17cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://braxsilcxfxc.net.br/liverpool-fc-news/features/steven-gerrard-liverpool-future-dalglish--goal-9DF487ED829B131DDBA24D56868C7EF2.html US CLOUDFLARENET 172.67.137.252 clean
http://www.studio4culture.net/pbt/?T8SD=/tJKmOzgObyDth2AimgKp1GAfCI75Iy8Hpxd4NC2Qufji5lDtIWEvn7RqfrmzGwFXt00o1/h&-ZPh=1bdtvL DE Neue Medien Muennich GmbH 85.13.132.154 clean
http://www.inthemodern.com/pbt/?T8SD=edFuLU10S6R+QUZXHOLs8Ufxq0Mq2FT4YPyuEAx1sMS745R9//G9L19l2loeeFtYauV5DO+k&-ZPh=1bdtvL US GOOGLE 34.102.136.180 clean
http://www.myhealthyyvet.com/pbt/?T8SD=afMh07a73fMW/orJQhK5qCN6WNvDaJB3IMkHmVCl5ziw6Gpi4lzWx5IEyOJ1IOIrpMcp3ZYj&-ZPh=1bdtvL CH Private Layer INC 81.17.18.194 clean
http://braxsilcxfxc.net.br/liverpool-fc-news/features/steven-gerrard-liverpool-future-dalglish--goal-7C3003343EF933D95A37D220246552C8.html US CLOUDFLARENET 172.67.137.252 clean
https://braxsilcxfxc.net.br/liverpool-fc-news/features/steven-gerrard-liverpool-future-dalglish--goal-7C3003343EF933D95A37D220246552C8.html US CLOUDFLARENET 104.21.56.235 clean
https://braxsilcxfxc.net.br/liverpool-fc-news/features/steven-gerrard-liverpool-future-dalglish--goal-9DF487ED829B131DDBA24D56868C7EF2.html US CLOUDFLARENET 104.21.56.235 clean
www.myhealthyyvet.com CH Private Layer INC 81.17.18.194 clean
www.studio4culture.net DE Neue Medien Muennich GmbH 85.13.132.154 clean
www.inthemodern.com US GOOGLE 34.102.136.180 clean
braxsilcxfxc.net.br US CLOUDFLARENET 172.67.137.252 clean
www.52wuan.net HK DXTL Tseung Kwan O Service 216.250.110.37 clean
192.187.111.221 US NOCIX 192.187.111.221 mailcious
104.21.56.235 US CLOUDFLARENET 104.21.56.235 clean
34.102.136.180 US GOOGLE 34.102.136.180 mailcious
85.13.132.154 DE Neue Medien Muennich GmbH 85.13.132.154 clean
216.250.110.37 HK DXTL Tseung Kwan O Service 216.250.110.37 clean

Suricata ids

PE API

IAT(Import Address Table) Library

mscoree.dll
 0x402000 _CorExeMain

EAT(Export Address Table) is none



Similarity measure (PE file only) - Checking for service failure