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Analysis
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max time kernel
94s -
max time network
95s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
31/12/2024, 16:25
Behavioral task
behavioral1
Sample
552f2ef9e25bf909ae321e78cb67edd809a529f5a81021f68e47e8d4923fa752.exe
Resource
win7-20240729-en
General
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Target
552f2ef9e25bf909ae321e78cb67edd809a529f5a81021f68e47e8d4923fa752.exe
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Size
2.3MB
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MD5
bc055ee1a3e93a1f1cadb666d073aa39
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SHA1
3a0d99190c69380ce01a088d7b8850debe4cf0f8
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SHA256
552f2ef9e25bf909ae321e78cb67edd809a529f5a81021f68e47e8d4923fa752
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SHA512
e77c8e75f9b1bce8136ebdb1807915f81c37d80f03e29b55cde6ee3c1755484b312254f86264ccc7dac54e65d68e4a7a4987b615af1b0f9fd2c986d6c3a36988
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SSDEEP
24576:3qzIIUgC8d36kLBXlnB8j7v5Ta+hLLQ20JmXSeWwa1oWJQjk0svTS/PPsbb1hwRn:3sCOfN6X5tLLQTg20ITS/PPs/1kS4eW
Malware Config
Signatures
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Blackmoon family
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Detect Blackmoon payload 4 IoCs
resource yara_rule behavioral2/memory/2540-0-0x0000000000400000-0x0000000000428000-memory.dmp family_blackmoon behavioral2/memory/2540-5-0x0000000000400000-0x0000000000428000-memory.dmp family_blackmoon behavioral2/files/0x0008000000023cb2-4.dat family_blackmoon behavioral2/memory/1132-6-0x0000000000400000-0x0000000000428000-memory.dmp family_blackmoon -
Njrat family
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Executes dropped EXE 1 IoCs
pid Process 1132 xxxrrfr.exe -
resource yara_rule behavioral2/memory/2540-0-0x0000000000400000-0x0000000000428000-memory.dmp upx behavioral2/memory/2540-5-0x0000000000400000-0x0000000000428000-memory.dmp upx behavioral2/files/0x0008000000023cb2-4.dat upx behavioral2/memory/1132-6-0x0000000000400000-0x0000000000428000-memory.dmp upx -
Program crash 1 IoCs
pid pid_target Process procid_target 3448 1132 WerFault.exe 82 -
System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 552f2ef9e25bf909ae321e78cb67edd809a529f5a81021f68e47e8d4923fa752.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language xxxrrfr.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2540 wrote to memory of 1132 2540 552f2ef9e25bf909ae321e78cb67edd809a529f5a81021f68e47e8d4923fa752.exe 82 PID 2540 wrote to memory of 1132 2540 552f2ef9e25bf909ae321e78cb67edd809a529f5a81021f68e47e8d4923fa752.exe 82 PID 2540 wrote to memory of 1132 2540 552f2ef9e25bf909ae321e78cb67edd809a529f5a81021f68e47e8d4923fa752.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\552f2ef9e25bf909ae321e78cb67edd809a529f5a81021f68e47e8d4923fa752.exe"C:\Users\Admin\AppData\Local\Temp\552f2ef9e25bf909ae321e78cb67edd809a529f5a81021f68e47e8d4923fa752.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2540 -
\??\c:\xxxrrfr.exec:\xxxrrfr.exe2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1132 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1132 -s 2243⤵
- Program crash
PID:3448
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1132 -ip 11321⤵PID:4584
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2.3MB
MD508f35484cecb2f7ddfadb7d7fd4e3d25
SHA13bf6f807eaee4d7b7c3d4305731561c4309c79ac
SHA2560b3ee62632c27cd445c0af5b3330974b46f07bd8b7f9097c5471ed0dcc3c8859
SHA512c43f56119350e1040f35ccd362e0822ddcf9021bff1b5ce64252a9e797d68237210f3bd432e692e30d4776efe8a0071edb7bd2677d111339763ac28807965745