ramnit | a37d2224a3005c126f1b86e6683331f3e518ff63b854830013c6191e8ba3d6d4

Analysis

max time kernel
91s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
03/12/2022, 12:14

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

a37d2224a3005c126f1b86e6683331f3e518ff63b854830013c6191e8ba3d6d4.dll
Size

516KB
MD5

0a6323e943db3ae1437f8fc94d689f8c
SHA1

d31a66ed71fe060dd872e1f1d9806d1eeeeacb6d
SHA256

a37d2224a3005c126f1b86e6683331f3e518ff63b854830013c6191e8ba3d6d4
SHA512

c94a53bce215f53aa31c9c93f78ff5e7094cdb5bc68908c0d50ee5759f4a4a1d0c4bf3b99da7420c2783ef50169dfb7c15bbce1c741be5d704c39892a66cd6d5
SSDEEP

12288:5ehnaNPpSVZmNxRCwnwm3W3OHIIf5bPvPW1gtAhm:5eh0PpS6NxNnwYeOHXhPXIgtt

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
1988	rundll32mgr.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1988-136-0x0000000000400000-0x0000000000461000-memory.dmp	upx
behavioral2/memory/1988-137-0x0000000000400000-0x0000000000461000-memory.dmp	upx
behavioral2/memory/1988-138-0x0000000000400000-0x0000000000462000-memory.dmp	upx
behavioral2/memory/1988-139-0x0000000000400000-0x0000000000462000-memory.dmp	upx
behavioral2/memory/1988-141-0x0000000000400000-0x0000000000461000-memory.dmp	upx

Loads dropped DLL 1 IoCs

pid	Process
1988	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
2192	1496	WerFault.exe	79
1204	1988	WerFault.exe	80

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
1988	rundll32mgr.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3996 wrote to memory of 1496	3996	rundll32.exe	79
PID 3996 wrote to memory of 1496	3996	rundll32.exe	79
PID 3996 wrote to memory of 1496	3996	rundll32.exe	79
PID 1496 wrote to memory of 1988	1496	rundll32.exe	80
PID 1496 wrote to memory of 1988	1496	rundll32.exe	80
PID 1496 wrote to memory of 1988	1496	rundll32.exe	80

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a37d2224a3005c126f1b86e6683331f3e518ff63b854830013c6191e8ba3d6d4.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3996
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a37d2224a3005c126f1b86e6683331f3e518ff63b854830013c6191e8ba3d6d4.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:1496
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of UnmapMainImage
    PID:1988
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1988 -s 256
      4⤵
      Program crash
      PID:1204
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1496 -s 608
    3⤵
    - Program crash
    PID:2192

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1496 -ip 1496
1⤵
PID:4900

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1988 -ip 1988
1⤵
PID:4916

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\~TMC018.tmp

Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

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

Filesize
133KB

MD5
cdb08259f376e72d84caaff2246e7b8d

SHA1
c812ffaebdac00ea61901b2a3d0b40bd9495d1da

SHA256
c572bcb3d9c247d7f45fefaaa5d62463bf5ef701a13cbbfc160dc81fc0301a05

SHA512
1e693e099ce8cad51863e44e522cb9b67ec785891b36eb623048a8ab6d37619a2a599c8237c5757f85aa696335c57c54b55afd2a92189cc46378998dad8af7f7

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

Filesize
133KB

MD5
cdb08259f376e72d84caaff2246e7b8d

SHA1
c812ffaebdac00ea61901b2a3d0b40bd9495d1da

SHA256
c572bcb3d9c247d7f45fefaaa5d62463bf5ef701a13cbbfc160dc81fc0301a05

SHA512
1e693e099ce8cad51863e44e522cb9b67ec785891b36eb623048a8ab6d37619a2a599c8237c5757f85aa696335c57c54b55afd2a92189cc46378998dad8af7f7

Download Submit
memory/1496-140-0x0000000010000000-0x0000000010083000-memory.dmp

Filesize
524KB

Download
memory/1988-136-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/1988-137-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/1988-138-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1988-139-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1988-141-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/1988-143-0x00000000772E0000-0x0000000077483000-memory.dmp

Filesize
1.6MB

Download