Analysis
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max time kernel
141s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
09-11-2024 23:08
Static task
static1
Behavioral task
behavioral1
Sample
6bf26697c7c6aa6106d731848b79efe0a91b1bc39ce2543925ac372b18cd926f.exe
Resource
win7-20240903-en
General
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Target
6bf26697c7c6aa6106d731848b79efe0a91b1bc39ce2543925ac372b18cd926f.exe
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Size
44KB
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MD5
f197974af10543563e447a877900ad26
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SHA1
0c886162b2f1f2b19eb003a6f526d0a2c5335c53
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SHA256
6bf26697c7c6aa6106d731848b79efe0a91b1bc39ce2543925ac372b18cd926f
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SHA512
f98d5199e4bb5c18070ca0326aeb7708ec1653219c77598ec12f2874e150f85394d0b1a40b5f4521795fc03dab64f29e4d2d213fe3b1be1043e83c31f1e7d72c
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SSDEEP
768:KmZ70XUP0K2I5f6VJiPy6jBZTCRoMUHIYhlDkYi0sDaF8QCFSXbyt/CSF7p97DtR:Kf2V2IOSXQoMUHFhSYr+DQLytpFL
Malware Config
Signatures
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Blackmoon family
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Detect Blackmoon payload 2 IoCs
Processes:
resource yara_rule behavioral1/memory/2656-8-0x0000000000400000-0x000000000042A000-memory.dmp family_blackmoon behavioral1/memory/2676-13-0x0000000000400000-0x000000000042A000-memory.dmp family_blackmoon -
Deletes itself 1 IoCs
Processes:
rrxfflr.exepid process 2676 rrxfflr.exe -
Executes dropped EXE 1 IoCs
Processes:
rrxfflr.exepid process 2676 rrxfflr.exe -
Drops file in Windows directory 1 IoCs
Processes:
rrxfflr.exedescription ioc process File created \??\c:\windows\friendl.dll rrxfflr.exe -
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
6bf26697c7c6aa6106d731848b79efe0a91b1bc39ce2543925ac372b18cd926f.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 6bf26697c7c6aa6106d731848b79efe0a91b1bc39ce2543925ac372b18cd926f.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
6bf26697c7c6aa6106d731848b79efe0a91b1bc39ce2543925ac372b18cd926f.exedescription pid process target process PID 2656 wrote to memory of 2676 2656 6bf26697c7c6aa6106d731848b79efe0a91b1bc39ce2543925ac372b18cd926f.exe rrxfflr.exe PID 2656 wrote to memory of 2676 2656 6bf26697c7c6aa6106d731848b79efe0a91b1bc39ce2543925ac372b18cd926f.exe rrxfflr.exe PID 2656 wrote to memory of 2676 2656 6bf26697c7c6aa6106d731848b79efe0a91b1bc39ce2543925ac372b18cd926f.exe rrxfflr.exe PID 2656 wrote to memory of 2676 2656 6bf26697c7c6aa6106d731848b79efe0a91b1bc39ce2543925ac372b18cd926f.exe rrxfflr.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\6bf26697c7c6aa6106d731848b79efe0a91b1bc39ce2543925ac372b18cd926f.exe"C:\Users\Admin\AppData\Local\Temp\6bf26697c7c6aa6106d731848b79efe0a91b1bc39ce2543925ac372b18cd926f.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2656 -
\??\c:\rrxfflr.exec:\rrxfflr.exe2⤵
- Deletes itself
- Executes dropped EXE
- Drops file in Windows directory
PID:2676
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
44KB
MD5db3ae2daaa4303b6ee96580ddfb819c7
SHA1c4b0b1172afb86f8b1b4d7f820a89e32ba6c0d83
SHA25636c6b41da2b32d1acb91875960feffaf9c22d50fe5f5c6cb3a74e9eb539e0d5c
SHA5126987e04d9a9cbc8b1dc604417e29802ffb39bf5120106b3da8a5633766ee71f46d0700ed23e6c3bcd2ca280a088c0b8adf745fe380d997eb2430bdf0c39fe60e
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Filesize
102B
MD5c72435f0134385f41d2fc24c8f4a7687
SHA12d5dbc00256e7dc918570f8acc9f266c5cb0ae7e
SHA2568cae4f978fcc9faf02a2472cd92e0b3fbccc4b54f8f660bad15fc23e2b29bcf6
SHA512d2b72ba8e2260e4a8cee7b7235bd618c4bc759b46d2b6ab6b11462b82d2ccde8d43324a7655ba15c59970eaac96b93cd3ab330226b2b89c46c888093ed31d87c