ramnit | 641d7c897826d6e424d7ca21499dba7dfc70927a41a90c52112e270f8d28c77f

Analysis

max time kernel
90s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
04/12/2022, 02:17

Target

641d7c897826d6e424d7ca21499dba7dfc70927a41a90c52112e270f8d28c77f.dll
Size

236KB
MD5

8486bd2948e7c635054fff54fc544e70
SHA1

be84bd1873b21bce54cade3a10276a54ba8ee2d3
SHA256

641d7c897826d6e424d7ca21499dba7dfc70927a41a90c52112e270f8d28c77f
SHA512

5359d7c4113fe7ae0808634ba084d33d41310c8f1be0597c6242439544a70759d811dd0fc711ada0086fa2698a5b3f47b4ed5cf7660c850fde657325c2fa4a7b
SSDEEP

3072:i4sMO3USmw0cKI7xrlAQ+9NR6veyFyEwgTyJnc6QkDzbb1+0Mme:rO3dmR8eydyJnfQk3sJme

Score

10^/10

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
2132	rundll32mgr.exe

UPX packed file 1 IoCs

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

resource	yara_rule
behavioral2/memory/2132-138-0x0000000000400000-0x000000000042A000-memory.dmp	upx

Loads dropped DLL 1 IoCs

pid	Process
2132	rundll32mgr.exe

Drops file in System32 directory 1 IoCs

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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4588	2132	WerFault.exe	81
2888	4896	WerFault.exe	80

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4812 wrote to memory of 4896	4812	rundll32.exe	80
PID 4812 wrote to memory of 4896	4812	rundll32.exe	80
PID 4812 wrote to memory of 4896	4812	rundll32.exe	80
PID 4896 wrote to memory of 2132	4896	rundll32.exe	81
PID 4896 wrote to memory of 2132	4896	rundll32.exe	81
PID 4896 wrote to memory of 2132	4896	rundll32.exe	81

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\641d7c897826d6e424d7ca21499dba7dfc70927a41a90c52112e270f8d28c77f.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4812
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\641d7c897826d6e424d7ca21499dba7dfc70927a41a90c52112e270f8d28c77f.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:4896
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:2132
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2132 -s 516
      4⤵
      Program crash
      PID:4588
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4896 -s 624
    3⤵
    - Program crash
    PID:2888

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2132 -ip 2132
1⤵
PID:3084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4896 -ip 4896
1⤵
PID:2700

C:\Users\Admin\AppData\Local\Temp\~TMFE3B.tmp

Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

Download Submit
C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
106KB

MD5
fe36fb1073e6f8fa14d7250501a29aaf

SHA1
6c7e01278362797dabcff3e666b68227cb9af10f

SHA256
f34e5af97ccb3574f7d5343246138daf979bfd1f9c37590e9a41f6420ddb3bb6

SHA512
8584c008c5780352f634c37b7f46543a26280b57577b675f6e72185bfc1d95f771d210d799d704eceaba509ebfd2796fb43829495d5b2a568c741ad2d44f882f

Download Submit
C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
106KB

MD5
fe36fb1073e6f8fa14d7250501a29aaf

SHA1
6c7e01278362797dabcff3e666b68227cb9af10f

SHA256
f34e5af97ccb3574f7d5343246138daf979bfd1f9c37590e9a41f6420ddb3bb6

SHA512
8584c008c5780352f634c37b7f46543a26280b57577b675f6e72185bfc1d95f771d210d799d704eceaba509ebfd2796fb43829495d5b2a568c741ad2d44f882f

Download Submit
memory/2132-138-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/2132-139-0x00000000004A0000-0x00000000004CA000-memory.dmp

Filesize
168KB

Download
memory/2132-140-0x0000000077C50000-0x0000000077DF3000-memory.dmp

Filesize
1.6MB

Download
memory/4896-137-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download