ramnit | 7be02983687a86adb2890f2e3cadd002f10875475fa7b3902930366690bec460

Analysis

max time kernel
117s
max time network
120s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29/03/2024, 22:38

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General

Target
7be02983687a86adb2890f2e3cadd002f10875475fa7b3902930366690bec460.dll
Size 236KB
Sample240329-2kr2mabe4y
SHA256 7be02983687a86adb2890f2e3cadd002f10875475fa7b3902930366690bec460
MD5 f8a1fc2e85cb8bbf67f888b9f051a996
SHA1 6fe8b7663f9f22ab5894c9c8b27ddde78df65e76
SHA512 d6026c317094de2ae70f07cd87efb1e00db91a6ac4e51668e23e4d2f63717beb6121f04db13b13a94f97a1d6a621619588458a3af36869cc7e373e1a88d11e2b
SSDEEP 3072:63cNK7Xv5aaxoU5dwI/8xJTkO2RSOy+k/juCYD8iRVoQskq4dq:ZMLPpUxJT0x5kbuOiRVoQ+4Y
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

ramnit banker spyware stealer trojan upx worm

Malware Config

Signatures

Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit

UPX dump on OEP (original entry point) 3 IoCs

resource	yara_rule
behavioral1/memory/2032-13-0x0000000000440000-0x0000000000472000-memory.dmp	UPX
behavioral1/memory/2032-14-0x0000000000400000-0x0000000000432000-memory.dmp	UPX
behavioral1/memory/2032-25-0x0000000000400000-0x0000000000432000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
2032	rundll32mgr.exe

Loads dropped DLL 4 IoCs

pid	Process
2028	rundll32.exe
2028	rundll32.exe
2032	rundll32mgr.exe
2032	rundll32mgr.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2032-14-0x0000000000400000-0x0000000000432000-memory.dmp	upx
behavioral1/memory/2032-25-0x0000000000400000-0x0000000000432000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32mgr.exe	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2964	2032	WerFault.exe	29

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1736 wrote to memory of 2028	1736	rundll32.exe	28
PID 1736 wrote to memory of 2028	1736	rundll32.exe	28
PID 1736 wrote to memory of 2028	1736	rundll32.exe	28
PID 1736 wrote to memory of 2028	1736	rundll32.exe	28
PID 1736 wrote to memory of 2028	1736	rundll32.exe	28
PID 1736 wrote to memory of 2028	1736	rundll32.exe	28
PID 1736 wrote to memory of 2028	1736	rundll32.exe	28
PID 2028 wrote to memory of 2032	2028	rundll32.exe	29
PID 2028 wrote to memory of 2032	2028	rundll32.exe	29
PID 2028 wrote to memory of 2032	2028	rundll32.exe	29
PID 2028 wrote to memory of 2032	2028	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7be02983687a86adb2890f2e3cadd002f10875475fa7b3902930366690bec460.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1736
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\7be02983687a86adb2890f2e3cadd002f10875475fa7b3902930366690bec460.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:2028
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:2032
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2032 -s 180
      4⤵
      Program crash
      PID:2964

Network

MITRE ATT&CK Matrix

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Downloads

~TM3997.tmp

Path \Users\Admin\AppData\Local\Temp\~TM3997.tmp
Size 1.2MB
SHA256 ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef
MD5 d124f55b9393c976963407dff51ffa79
SHA1 2c7bbedd79791bfb866898c85b504186db610b5d
SHA512 278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06
SSDEEP 24576:gwS6Xkd14PpBi6vPfdviHPZ2jslseW64AcECwA:lUd1ypBLPdmZ2Ox4AcECwA
MD5 SHA1 SHA512 SSDEEP

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~TM3A24.tmp

Path \Users\Admin\AppData\Local\Temp\~TM3A24.tmp
Size 1.1MB
SHA256 96e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b
MD5 9b98d47916ead4f69ef51b56b0c2323c
SHA1 290a80b4ded0efc0fd00816f373fcea81a521330
SHA512 68b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94
SSDEEP 24576:N2PEQWsHunfuKH8CBlcODV3iNXm5llVi:kPEQBHuXH8W/V3isk
MD5 SHA1 SHA512 SSDEEP

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rundll32mgr.exe

Path \Windows\SysWOW64\rundll32mgr.exe
Size 157KB
SHA256 2aab17b2f18dfb70cd737b27b1a438ad8878889070a6e025b3684483054f60c9
MD5 2ad7467eeceedd64b8bd4f6e04c3cd49
SHA1 d6c5d9878dc49ae9b531d61283609e207154a921
SHA512 7a647d4a8de90d11cd5afb82ace8354869af0893f28afcf9491d1d4de421315d9a394a5d3462d88c0eff6c5a7a4ed41897d8d0498b59b4b7428ddbb61786be2a
SSDEEP 1536:VIZZnAEjEIZvumULmj4wrraK5dZ4Ltta9Km/ec3DtAL6bmZ4bXSjrAE+fySPoqRI:GnnAQVG/LytaKItS/fiLKS+f5Aq7i
MD5 SHA1 SHA512 SSDEEP

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memory/2028-2-0x0000000010000000-0x000000001003D000-memory.dmp

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memory/2028-9-0x0000000000190000-0x00000000001C2000-memory.dmp

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memory/2028-3-0x0000000000190000-0x00000000001C2000-memory.dmp

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memory/2032-17-0x000000007746F000-0x0000000077471000-memory.dmp

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memory/2032-14-0x0000000000400000-0x0000000000432000-memory.dmp

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memory/2032-11-0x0000000000400000-0x0000000000432000-memory.dmp

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memory/2032-19-0x0000000077470000-0x0000000077472000-memory.dmp

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memory/2032-18-0x0000000077470000-0x0000000077471000-memory.dmp

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memory/2032-13-0x0000000000440000-0x0000000000472000-memory.dmp

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memory/2032-23-0x0000000076730000-0x0000000076840000-memory.dmp

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memory/2032-24-0x0000000076730000-0x0000000076840000-memory.dmp

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memory/2032-25-0x0000000000400000-0x0000000000432000-memory.dmp

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memory/2032-26-0x0000000076730000-0x0000000076840000-memory.dmp

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Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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