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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
240817-29be6ssfra
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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
win7-20240708-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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Boot or Logon Autostart Execution: Active Setup
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
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Downloads MZ/PE file
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Event Triggered Execution: AppInit DLLs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
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Event Triggered Execution: Image File Execution Options Injection
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Possible privilege escalation attempt
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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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Event Triggered Execution: Component Object Model Hijacking
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
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Executes dropped EXE
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Loads dropped DLL
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Modifies file permissions
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Modifies system executable filetype association
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System Binary Proxy Execution: wuauclt
Abuse Wuauclt to proxy execution of malicious code.
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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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Legitimate hosting services abused for malware hosting/C2
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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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Drops file in System32 directory
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Active Setup
1Registry Run Keys / Startup Folder
1Event Triggered Execution
5AppInit DLLs
1Change Default File Association
1Component Object Model Hijacking
1Image File Execution Options Injection
1Netsh Helper DLL
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
2Active Setup
1Registry Run Keys / Startup Folder
1Event Triggered Execution
5AppInit DLLs
1Change Default File Association
1Component Object Model Hijacking
1Image File Execution Options Injection
1Netsh Helper DLL
1Defense Evasion
File and Directory Permissions Modification
1Modify Registry
4Pre-OS Boot
1Bootkit
1System Binary Proxy Execution
1Discovery
Browser Information Discovery
1Network Service Discovery
1Peripheral Device Discovery
2Query Registry
7Software Discovery
1Security Software Discovery
1System Information Discovery
6System Location Discovery
1System Language Discovery
1System Network Configuration Discovery
1Internet Connection Discovery
1