ramnit | 55707356bf57354f3f8bb6b493f68a928f79429124522646d23c92e84f2e2aa2

Analysis

max time kernel
42s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
21/11/2022, 10:58

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General

Target

55707356bf57354f3f8bb6b493f68a928f79429124522646d23c92e84f2e2aa2.dll
Size

194KB
MD5

203a1f73ddc5560c0d0ea3d361cd5790
SHA1

120b55cbe82c8661d4953a006f4e31ef038146c3
SHA256

55707356bf57354f3f8bb6b493f68a928f79429124522646d23c92e84f2e2aa2
SHA512

d54233862bc5266be3afb9362be54de433d302c63f1dc7eb79d5efce40a24d4071d8bd0ea56541af1470b3b2a23ea9463b3b2a369bc531434296d9bf2dfa0a35
SSDEEP

3072:Yr4tCk6tqO/YoaUoj1ZhOo1sUlN8KpzLxyuWqfMHIbvj5V6rZdWQN37eb6r6f5D7:yMQod8ZLN37ebb/Mz2Rx

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
2016	rundll32mgr.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2016-63-0x0000000000400000-0x000000000042A000-memory.dmp	upx

Loads dropped DLL 4 IoCs

pid	Process
1340	rundll32.exe
1340	rundll32.exe
2016	rundll32mgr.exe
2016	rundll32mgr.exe

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
1496	2016	WerFault.exe	29

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1964 wrote to memory of 1340	1964	rundll32.exe	28
PID 1964 wrote to memory of 1340	1964	rundll32.exe	28
PID 1964 wrote to memory of 1340	1964	rundll32.exe	28
PID 1964 wrote to memory of 1340	1964	rundll32.exe	28
PID 1964 wrote to memory of 1340	1964	rundll32.exe	28
PID 1964 wrote to memory of 1340	1964	rundll32.exe	28
PID 1964 wrote to memory of 1340	1964	rundll32.exe	28
PID 1340 wrote to memory of 2016	1340	rundll32.exe	29
PID 1340 wrote to memory of 2016	1340	rundll32.exe	29
PID 1340 wrote to memory of 2016	1340	rundll32.exe	29
PID 1340 wrote to memory of 2016	1340	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\55707356bf57354f3f8bb6b493f68a928f79429124522646d23c92e84f2e2aa2.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1964
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\55707356bf57354f3f8bb6b493f68a928f79429124522646d23c92e84f2e2aa2.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:1340
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:2016
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 180
      4⤵
      Program crash
      PID:1496

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
106KB

MD5
fe36fb1073e6f8fa14d7250501a29aaf

SHA1
6c7e01278362797dabcff3e666b68227cb9af10f

SHA256
f34e5af97ccb3574f7d5343246138daf979bfd1f9c37590e9a41f6420ddb3bb6

SHA512
8584c008c5780352f634c37b7f46543a26280b57577b675f6e72185bfc1d95f771d210d799d704eceaba509ebfd2796fb43829495d5b2a568c741ad2d44f882f

Download Submit
\Users\Admin\AppData\Local\Temp\~TMF058.tmp

Filesize
1.2MB

MD5
d124f55b9393c976963407dff51ffa79

SHA1
2c7bbedd79791bfb866898c85b504186db610b5d

SHA256
ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

SHA512
278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

Download Submit
\Users\Admin\AppData\Local\Temp\~TMF088.tmp

Filesize
1.1MB

MD5
9b98d47916ead4f69ef51b56b0c2323c

SHA1
290a80b4ded0efc0fd00816f373fcea81a521330

SHA256
96e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b

SHA512
68b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94

Download Submit
\Windows\SysWOW64\rundll32mgr.exe

Filesize
106KB

MD5
fe36fb1073e6f8fa14d7250501a29aaf

SHA1
6c7e01278362797dabcff3e666b68227cb9af10f

SHA256
f34e5af97ccb3574f7d5343246138daf979bfd1f9c37590e9a41f6420ddb3bb6

SHA512
8584c008c5780352f634c37b7f46543a26280b57577b675f6e72185bfc1d95f771d210d799d704eceaba509ebfd2796fb43829495d5b2a568c741ad2d44f882f

Download Submit
\Windows\SysWOW64\rundll32mgr.exe

Filesize
106KB

MD5
fe36fb1073e6f8fa14d7250501a29aaf

SHA1
6c7e01278362797dabcff3e666b68227cb9af10f

SHA256
f34e5af97ccb3574f7d5343246138daf979bfd1f9c37590e9a41f6420ddb3bb6

SHA512
8584c008c5780352f634c37b7f46543a26280b57577b675f6e72185bfc1d95f771d210d799d704eceaba509ebfd2796fb43829495d5b2a568c741ad2d44f882f

Download Submit
memory/1340-55-0x0000000076411000-0x0000000076413000-memory.dmp

Filesize
8KB

Download
memory/1340-66-0x0000000050590000-0x00000000505C4000-memory.dmp

Filesize
208KB

Download
memory/2016-63-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/2016-64-0x0000000000220000-0x000000000024A000-memory.dmp

Filesize
168KB

Download
memory/2016-65-0x00000000777A0000-0x0000000077920000-memory.dmp

Filesize
1.5MB

Download