Resubmissions
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240825-2t6als1gll 10General
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Target
230823-139hyshd3w_pw_infected.zip
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Size
472KB
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Sample
240812-zg6z9stcnb
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MD5
e3af7d1463d266e02cd03ea7a3add2e4
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SHA1
6456c0de00c86db5e7d061fbf7e19792d3dbbc4a
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SHA256
8ef176944e54df85db028979ceb66b2b6e807b1615f4254c273d4b433caec0dd
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SHA512
855e4ba5316a800113f6f410d37ba7e981c0f72bb23664c26e464777f2a0a96d8f651e77189af89e70be9d032a3a1b7b40b005bd60b9f6dc792c7588b3a8d9bb
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SSDEEP
12288:ABgmK1z0D2TuzS4cu2LH6WhBO8RiKrDmlPPoSdERZIhp4TWo3:2BKqSt4AH6Whc2fqPoSdEDRWo3
Static task
static1
Behavioral task
behavioral1
Sample
dl2.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
dl2.exe
Resource
win10v2004-20240802-en
Malware Config
Targets
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Target
dl2.exe
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Size
849KB
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MD5
c2055b7fbaa041d9f68b9d5df9b45edd
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SHA1
e4bd443bd4ce9029290dcd4bb47cb1a01f3b1b06
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SHA256
342f04c4720590c40d24078d46d9b19d8175565f0af460598171d58f5ffc48f3
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SHA512
18905b75938b8af9468b1aa3ffbae796a139c2762e623aa6ffb9ec2b293dd04aa1f90d1ed5a7dbda7853795a3688e368121a134c7f63e527a8e5e7679301a1dc
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SSDEEP
12288:A3RY3yNqMRTF4q2rxHn2ot/81xpNQyjUXlmoe7ufjHAtjXD7r2:A3RY3R24q+xn/8Xp2yOl5fzQ/2
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BazarBackdoor
Stealthy backdoor targeting corporate networks, believed to be developed by Trickbot's authors.
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Downloads MZ/PE file
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Tries to connect to .bazar domain
Attempts to lookup or connect to a .bazar domain, used by BazarBackdoor, Trickbot, and potentially others.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Loads dropped DLL
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Unexpected DNS network traffic destination
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
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Adds Run key to start application
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Checks for any installed AV software in registry
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Creates a large amount of network flows
This may indicate a network scan to discover remotely running services.
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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Enumerates processes with tasklist
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Modify Registry
3Pre-OS Boot
1Bootkit
1Subvert Trust Controls
1Install Root Certificate
1Discovery
Browser Information Discovery
1Network Service Discovery
1Peripheral Device Discovery
1Process Discovery
1Query Registry
5Software Discovery
1Security Software Discovery
1System Information Discovery
5System Location Discovery
1System Language Discovery
1