General
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Target
Abbys Loader.exe
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Size
8.3MB
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Sample
231208-1pd5wseed7
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MD5
e3ffc5689f47470d27cc887f436a6314
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SHA1
6dcd3bd8efe25473799c60e4a5c6bd452c6f173f
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SHA256
7cbe7d346f86a0f771e9cd2957f588b28310251461033a1e8e1fa47513f4544c
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SHA512
28f644253daf94d4f5032fa9cc2037240d3d35ce5fae90c9f0254db65798baa29079d9e4a0b961b61ffe0cb3e26ae11945a83f84da03565b2fb8b9798e7e4de3
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SSDEEP
196608:ib44X4ZJfaTLcGSp5Ri2SiW8kW8oaMjITKYODW:C44X4Z4TLcGSp5b28kKrBvW
Static task
static1
Behavioral task
behavioral1
Sample
Abbys Loader.exe
Resource
win11-20231129-en
Malware Config
Targets
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Target
Abbys Loader.exe
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Size
8.3MB
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MD5
e3ffc5689f47470d27cc887f436a6314
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SHA1
6dcd3bd8efe25473799c60e4a5c6bd452c6f173f
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SHA256
7cbe7d346f86a0f771e9cd2957f588b28310251461033a1e8e1fa47513f4544c
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SHA512
28f644253daf94d4f5032fa9cc2037240d3d35ce5fae90c9f0254db65798baa29079d9e4a0b961b61ffe0cb3e26ae11945a83f84da03565b2fb8b9798e7e4de3
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SSDEEP
196608:ib44X4ZJfaTLcGSp5Ri2SiW8kW8oaMjITKYODW:C44X4Z4TLcGSp5b28kKrBvW
Score9/10-
Looks for VirtualBox Guest Additions in registry
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Downloads MZ/PE file
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Drops file in Drivers directory
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Looks for VMWare Tools registry key
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Stops running service(s)
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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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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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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Legitimate hosting services abused for malware hosting/C2
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Maps connected drives based on registry
Disk information is often read in order to detect sandboxing environments.
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Drops file in System32 directory
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Suspicious use of NtSetInformationThreadHideFromDebugger
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Defense Evasion
File and Directory Permissions Modification
1Impair Defenses
1Modify Registry
1Virtualization/Sandbox Evasion
2