ramnit | 8ff3e2b82ca0ca7711c9fac784247760731edeeb60f5ee9f96403ec86f261259

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
03/02/2024, 14:48

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General

Target

8c9a8988b6c4665f47fd5567442b8a8d.dll
Size

175KB
MD5

8c9a8988b6c4665f47fd5567442b8a8d
SHA1

f644813645a69f4ab6f33ea477e1dbc49ac4f5ca
SHA256

8ff3e2b82ca0ca7711c9fac784247760731edeeb60f5ee9f96403ec86f261259
SHA512

7da4577ad41a3e6117e95ae4ef81de8843366db739175c21036ab494607cc5a0c746c6997d1f29dbf2985e5d5d9a5a554710efaa6ebc2ca629466e85bb0b8074
SSDEEP

3072:QTU56gVxj27N2lyhTPLpNXKuUQK5VE+leb0bQmbSAFScLWTt:z4ZTPlN6uw5VE+lzbBTs

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
1184	regsvr32mgr.exe

Loads dropped DLL 4 IoCs

pid	Process
3056	regsvr32.exe
3056	regsvr32.exe
1184	regsvr32mgr.exe
1184	regsvr32mgr.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1184-17-0x0000000000400000-0x000000000042A000-memory.dmp	upx
behavioral1/memory/1184-10-0x0000000000400000-0x000000000042A000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\regsvr32mgr.exe	regsvr32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2532	1184	WerFault.exe	29

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 3056	2372	regsvr32.exe	28
PID 2372 wrote to memory of 3056	2372	regsvr32.exe	28
PID 2372 wrote to memory of 3056	2372	regsvr32.exe	28
PID 2372 wrote to memory of 3056	2372	regsvr32.exe	28
PID 2372 wrote to memory of 3056	2372	regsvr32.exe	28
PID 2372 wrote to memory of 3056	2372	regsvr32.exe	28
PID 2372 wrote to memory of 3056	2372	regsvr32.exe	28
PID 3056 wrote to memory of 1184	3056	regsvr32.exe	29
PID 3056 wrote to memory of 1184	3056	regsvr32.exe	29
PID 3056 wrote to memory of 1184	3056	regsvr32.exe	29
PID 3056 wrote to memory of 1184	3056	regsvr32.exe	29

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\8c9a8988b6c4665f47fd5567442b8a8d.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\8c9a8988b6c4665f47fd5567442b8a8d.dll
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:3056
- - C:\Windows\SysWOW64\regsvr32mgr.exe
    C:\Windows\SysWOW64\regsvr32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:1184
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1184 -s 180
      4⤵
      Program crash
      PID:2532

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\~TM7E.tmp

Filesize
1.2MB

MD5
d124f55b9393c976963407dff51ffa79

SHA1
2c7bbedd79791bfb866898c85b504186db610b5d

SHA256
ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

SHA512
278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

Download Submit
\Users\Admin\AppData\Local\Temp\~TM8E.tmp

Filesize
1.1MB

MD5
9b98d47916ead4f69ef51b56b0c2323c

SHA1
290a80b4ded0efc0fd00816f373fcea81a521330

SHA256
96e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b

SHA512
68b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94

Download Submit
\Windows\SysWOW64\regsvr32mgr.exe

Filesize
106KB

MD5
fe36fb1073e6f8fa14d7250501a29aaf

SHA1
6c7e01278362797dabcff3e666b68227cb9af10f

SHA256
f34e5af97ccb3574f7d5343246138daf979bfd1f9c37590e9a41f6420ddb3bb6

SHA512
8584c008c5780352f634c37b7f46543a26280b57577b675f6e72185bfc1d95f771d210d799d704eceaba509ebfd2796fb43829495d5b2a568c741ad2d44f882f

Download Submit
memory/1184-17-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/1184-13-0x0000000000220000-0x000000000024A000-memory.dmp

Filesize
168KB

Download
memory/1184-10-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/1184-19-0x00000000771F0000-0x0000000077300000-memory.dmp

Filesize
1.1MB

Download
memory/1184-18-0x0000000077C1F000-0x0000000077C21000-memory.dmp

Filesize
8KB

Download
memory/1184-20-0x0000000077C20000-0x0000000077C21000-memory.dmp

Filesize
4KB

Download
memory/3056-2-0x0000000074E60000-0x0000000074E8F000-memory.dmp

Filesize
188KB

Download