ramnit | 7a57c1907f34d63701cf5afc8bae25724fc33c0bd389d8cd20ff4d4696980c76

Analysis

max time kernel
121s
max time network
125s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/03/2024, 14:08

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General

Target

7a57c1907f34d63701cf5afc8bae25724fc33c0bd389d8cd20ff4d4696980c76.dll
Size

3.0MB
MD5

bf10a4cd1a1e1c1b661a54be7cebd42a
SHA1

59c9a86e68c5db178997781be2a0a38b14e20bae
SHA256

7a57c1907f34d63701cf5afc8bae25724fc33c0bd389d8cd20ff4d4696980c76
SHA512

8c98f0ecb9dc55eb6952317375ea41545a977bea8cf7eb02864e3178d08d4b66bc935e1296c2a391a69f51290d8a4273fb801b7c9b57e8a16a022a3421abe381
SSDEEP

24576:iZdzmeCQ09ZMlrJNs43F7LuZ/JocR8dE8Urb9joii9g//YwbFIp6ZtaHBc7G3+wO:/exrlr3cR7dj5i4Qpv8LAlztm46hD

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

Executes dropped EXE 1 IoCs

pid	Process
1820	rundll32mgr.exe

Loads dropped DLL 4 IoCs

pid	Process
1680	rundll32.exe
1680	rundll32.exe
1820	rundll32mgr.exe
1820	rundll32mgr.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1820-23-0x0000000000400000-0x000000000042A000-memory.dmp	upx
behavioral1/memory/1820-12-0x0000000000400000-0x000000000042A000-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
1612	1820	WerFault.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2172 wrote to memory of 1680	2172	rundll32.exe	30
PID 2172 wrote to memory of 1680	2172	rundll32.exe	30
PID 2172 wrote to memory of 1680	2172	rundll32.exe	30
PID 2172 wrote to memory of 1680	2172	rundll32.exe	30
PID 2172 wrote to memory of 1680	2172	rundll32.exe	30
PID 2172 wrote to memory of 1680	2172	rundll32.exe	30
PID 2172 wrote to memory of 1680	2172	rundll32.exe	30
PID 1680 wrote to memory of 1820	1680	rundll32.exe	31
PID 1680 wrote to memory of 1820	1680	rundll32.exe	31
PID 1680 wrote to memory of 1820	1680	rundll32.exe	31
PID 1680 wrote to memory of 1820	1680	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7a57c1907f34d63701cf5afc8bae25724fc33c0bd389d8cd20ff4d4696980c76.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2172
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\7a57c1907f34d63701cf5afc8bae25724fc33c0bd389d8cd20ff4d4696980c76.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:1680
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:1820
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1820 -s 180
      4⤵
      Program crash
      PID:1612

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
184KB

MD5
1d92c741bc5b2d34dcd0a0265ab54275

SHA1
a160982825420567c15f6c11f777cb4ccbe69bb8

SHA256
3aab3cf37efd4c034da13a0d7ba8725f49a21d227e05f3bba91d8d36350f4a67

SHA512
1da728dba6383e0e9fc51370f8fb782a15e724b57b952d952e4c719f81d517a56035b1e9496da3d7f9bf79af0a4bd5caa8a351ca60f40d637da3648224944b94

Download Submit
\Users\Admin\AppData\Local\Temp\~TM50AF.tmp

Filesize
1.2MB

MD5
d124f55b9393c976963407dff51ffa79

SHA1
2c7bbedd79791bfb866898c85b504186db610b5d

SHA256
ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

SHA512
278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

Download Submit
\Users\Admin\AppData\Local\Temp\~TM50FE.tmp

Filesize
1.1MB

MD5
9b98d47916ead4f69ef51b56b0c2323c

SHA1
290a80b4ded0efc0fd00816f373fcea81a521330

SHA256
96e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b

SHA512
68b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94

Download Submit
memory/1680-2-0x00000000750E0000-0x0000000075516000-memory.dmp

Filesize
4.2MB

Download
memory/1680-3-0x0000000074CA0000-0x00000000750D6000-memory.dmp

Filesize
4.2MB

Download
memory/1680-4-0x00000000750E0000-0x0000000075516000-memory.dmp

Filesize
4.2MB

Download
memory/1820-17-0x0000000077E9F000-0x0000000077EA1000-memory.dmp

Filesize
8KB

Download
memory/1820-24-0x00000000762E0000-0x00000000763F0000-memory.dmp

Filesize
1.1MB

Download
memory/1820-13-0x00000000003C0000-0x00000000003EA000-memory.dmp

Filesize
168KB

Download
memory/1820-12-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/1820-18-0x0000000077EA0000-0x0000000077EA1000-memory.dmp

Filesize
4KB

Download
memory/1820-19-0x0000000077EA0000-0x0000000077EA2000-memory.dmp

Filesize
8KB

Download
memory/1820-22-0x00000000762E0000-0x00000000763F0000-memory.dmp

Filesize
1.1MB

Download
memory/1820-23-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download