General
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Target
downloader.exe
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Size
70.1MB
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Sample
240814-bfhpaatbrd
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MD5
c400bb99399ac5e6ee84cbbfc14d4d80
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SHA1
7a422bb513001140515c4825d449e363ef44cad0
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SHA256
5eb7abc218b3f8b9d07fc6be3f67100379dc667a2aaa6385036bae2a312c3b18
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SHA512
6f22792148c4a4cf1aae629f096b2690a2dfd4a55fa31875dbe67989bde8b8d8be80d1d80f3a151c2fd7f1a969a250e0047f1fb30dac4d1c602038cde7c26a00
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SSDEEP
393216:lWxQN89qQk4adiJCuE2fUCdod+OvqKkZHzXhJ/KTe8uiBUtkc0k3qrsGg4GUo3Nh:lWoI7zGh5ahWc3ImH
Static task
static1
Behavioral task
behavioral1
Sample
downloader.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
downloader.exe
Resource
win10v2004-20240802-en
Malware Config
Targets
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Target
downloader.exe
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Size
70.1MB
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MD5
c400bb99399ac5e6ee84cbbfc14d4d80
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SHA1
7a422bb513001140515c4825d449e363ef44cad0
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SHA256
5eb7abc218b3f8b9d07fc6be3f67100379dc667a2aaa6385036bae2a312c3b18
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SHA512
6f22792148c4a4cf1aae629f096b2690a2dfd4a55fa31875dbe67989bde8b8d8be80d1d80f3a151c2fd7f1a969a250e0047f1fb30dac4d1c602038cde7c26a00
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SSDEEP
393216:lWxQN89qQk4adiJCuE2fUCdod+OvqKkZHzXhJ/KTe8uiBUtkc0k3qrsGg4GUo3Nh:lWoI7zGh5ahWc3ImH
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Suspicious use of NtCreateUserProcessOtherParentProcess
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Downloads MZ/PE file
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Drops file in Drivers directory
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Modifies RDP port number used by Windows
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Sets service image path in registry
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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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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Impair Defenses: Safe Mode Boot
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Loads dropped DLL
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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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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Drops file in System32 directory
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Component Object Model Hijacking
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Component Object Model Hijacking
1Defense Evasion
Impair Defenses
1Safe Mode Boot
1Modify Registry
3Subvert Trust Controls
2Install Root Certificate
1SIP and Trust Provider Hijacking
1