Analysis
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max time kernel
117s -
max time network
117s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
30-12-2024 04:52
Static task
static1
Behavioral task
behavioral1
Sample
f9106696dc68ee453783794d5a58b0e8cad235a6cda291286e5a7963cdc19af3.dll
Resource
win7-20240903-en
General
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Target
f9106696dc68ee453783794d5a58b0e8cad235a6cda291286e5a7963cdc19af3.dll
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Size
594KB
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MD5
1c3941a31bc416b578250b3eb73c1e7b
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SHA1
3dcb2115002e50037f1f28a0ef8e8b82f214312c
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SHA256
f9106696dc68ee453783794d5a58b0e8cad235a6cda291286e5a7963cdc19af3
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SHA512
eb1fe7a9b1eaa15eccbcb5dbbb687f759961ae3112f7d91692ba3f01c53403fe1d32356453594f51db1a7ccad2dfdd8b5772a6c292661bf98bff57061b638951
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SSDEEP
12288:rDwfb0Ru2iNr5R+vHh0PxyrEj2yYHcmNN1lkNN:vwfgMpmvEj2yYLlkNN
Malware Config
Signatures
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Ramnit family
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Executes dropped EXE 1 IoCs
pid Process 1800 regsvr32mgr.exe -
Loads dropped DLL 4 IoCs
pid Process 1832 regsvr32.exe 1832 regsvr32.exe 1800 regsvr32mgr.exe 1800 regsvr32mgr.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\regsvr32mgr.exe regsvr32.exe -
resource yara_rule behavioral1/memory/1800-10-0x0000000000400000-0x000000000042A000-memory.dmp upx behavioral1/memory/1800-14-0x0000000000400000-0x000000000042A000-memory.dmp upx behavioral1/memory/1800-18-0x0000000000400000-0x000000000042A000-memory.dmp upx -
Program crash 1 IoCs
pid pid_target Process procid_target 2952 1800 WerFault.exe 32 -
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 regsvr32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32mgr.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 2324 wrote to memory of 1832 2324 regsvr32.exe 31 PID 2324 wrote to memory of 1832 2324 regsvr32.exe 31 PID 2324 wrote to memory of 1832 2324 regsvr32.exe 31 PID 2324 wrote to memory of 1832 2324 regsvr32.exe 31 PID 2324 wrote to memory of 1832 2324 regsvr32.exe 31 PID 2324 wrote to memory of 1832 2324 regsvr32.exe 31 PID 2324 wrote to memory of 1832 2324 regsvr32.exe 31 PID 1832 wrote to memory of 1800 1832 regsvr32.exe 32 PID 1832 wrote to memory of 1800 1832 regsvr32.exe 32 PID 1832 wrote to memory of 1800 1832 regsvr32.exe 32 PID 1832 wrote to memory of 1800 1832 regsvr32.exe 32
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\f9106696dc68ee453783794d5a58b0e8cad235a6cda291286e5a7963cdc19af3.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2324 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\f9106696dc68ee453783794d5a58b0e8cad235a6cda291286e5a7963cdc19af3.dll2⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1832 -
C:\Windows\SysWOW64\regsvr32mgr.exeC:\Windows\SysWOW64\regsvr32mgr.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:1800 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1800 -s 1804⤵
- Program crash
PID:2952
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.2MB
MD5d124f55b9393c976963407dff51ffa79
SHA12c7bbedd79791bfb866898c85b504186db610b5d
SHA256ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef
SHA512278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06
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Filesize
1.1MB
MD59b98d47916ead4f69ef51b56b0c2323c
SHA1290a80b4ded0efc0fd00816f373fcea81a521330
SHA25696e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b
SHA51268b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94
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Filesize
106KB
MD5fe36fb1073e6f8fa14d7250501a29aaf
SHA16c7e01278362797dabcff3e666b68227cb9af10f
SHA256f34e5af97ccb3574f7d5343246138daf979bfd1f9c37590e9a41f6420ddb3bb6
SHA5128584c008c5780352f634c37b7f46543a26280b57577b675f6e72185bfc1d95f771d210d799d704eceaba509ebfd2796fb43829495d5b2a568c741ad2d44f882f