ramnit | 8837b88e2d3a5e9fcde002ec2651ec2e5319f671fe4d9684d7cf5fc17f3ea4ff

Analysis

max time kernel
84s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-12-2024 04:01

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General

Target

8837b88e2d3a5e9fcde002ec2651ec2e5319f671fe4d9684d7cf5fc17f3ea4ff.dll
Size

176KB
MD5

68cdc330baa1ae5dba5a48485c49a700
SHA1

c9d56a22c688a168bf7f52d3ac466a253a42e39a
SHA256

8837b88e2d3a5e9fcde002ec2651ec2e5319f671fe4d9684d7cf5fc17f3ea4ff
SHA512

d11e3cdf259c8165022340639223a0d655bc4ecdff43191300a73e29564ef426717425207db94679e403c301bd67997a9f6948d37d013f19e8542c92af322af9
SSDEEP

3072:KLKa1Zln2E+HVpTbFVKTyDr6wjZuqhWcA69EShJEsyDdb2zSp0ecQnttCe9VfAS:wKa1f2jV+2rDIKe69EeJElwa0ebtkMf

Score

10^/10

ramnit banker discovery 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
Ramnit family
ramnit

Executes dropped EXE 1 IoCs

pid	Process
1872	rundll32mgr.exe

Loads dropped DLL 4 IoCs

pid	Process
2304	rundll32.exe
2304	rundll32.exe
1872	rundll32mgr.exe
1872	rundll32mgr.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1872-11-0x0000000000400000-0x000000000042C1D8-memory.dmp	upx
behavioral1/memory/1872-10-0x0000000000400000-0x000000000042D000-memory.dmp	upx
behavioral1/memory/1872-19-0x0000000000400000-0x000000000042D000-memory.dmp	upx
behavioral1/memory/1872-17-0x0000000000400000-0x000000000042C1D8-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2512 wrote to memory of 2304	2512	rundll32.exe	31
PID 2512 wrote to memory of 2304	2512	rundll32.exe	31
PID 2512 wrote to memory of 2304	2512	rundll32.exe	31
PID 2512 wrote to memory of 2304	2512	rundll32.exe	31
PID 2512 wrote to memory of 2304	2512	rundll32.exe	31
PID 2512 wrote to memory of 2304	2512	rundll32.exe	31
PID 2512 wrote to memory of 2304	2512	rundll32.exe	31
PID 2304 wrote to memory of 1872	2304	rundll32.exe	32
PID 2304 wrote to memory of 1872	2304	rundll32.exe	32
PID 2304 wrote to memory of 1872	2304	rundll32.exe	32
PID 2304 wrote to memory of 1872	2304	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8837b88e2d3a5e9fcde002ec2651ec2e5319f671fe4d9684d7cf5fc17f3ea4ff.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2512
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\8837b88e2d3a5e9fcde002ec2651ec2e5319f671fe4d9684d7cf5fc17f3ea4ff.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2304
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:1872

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\~TMD73C.tmp

Filesize
1.2MB

MD5
d124f55b9393c976963407dff51ffa79

SHA1
2c7bbedd79791bfb866898c85b504186db610b5d

SHA256
ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

SHA512
278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

Download Submit
\Users\Admin\AppData\Local\Temp\~TMD75C.tmp

Filesize
1.1MB

MD5
9b98d47916ead4f69ef51b56b0c2323c

SHA1
290a80b4ded0efc0fd00816f373fcea81a521330

SHA256
96e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b

SHA512
68b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94

Download Submit
\Windows\SysWOW64\rundll32mgr.exe

Filesize
97KB

MD5
ef5dc2521333fb418bd5518f1db3fd08

SHA1
3d5e8d6dbf09a599f674fe9d6c1d736b0c31cb70

SHA256
75bfc7c1f54f2579541c35f721a6bbd9083c7208bd989624ceb25f16bd03afbe

SHA512
8768e95f5539dc61350f552d575c683e20e000f41283701c9c5f393da40975a02a7d432374c72565f3e1848266ee94e20d905f62b849f91f3c956b7980d87882

Download Submit
memory/1872-11-0x0000000000400000-0x000000000042C1D8-memory.dmp

Filesize
176KB

Download
memory/1872-10-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1872-19-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1872-17-0x0000000000400000-0x000000000042C1D8-memory.dmp

Filesize
176KB

Download
memory/2304-0-0x0000000000670000-0x00000000006A1000-memory.dmp

Filesize
196KB

Download