ramnit | 42839c019c001285d90b515e1d474dd6f965c152982d65bb4dbbd485fb298b07

Analysis

max time kernel
121s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01-01-2025 01:31

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General

Target

JaffaCakes118_42584c42d34a82ea70b90aa746a0c9a0.dll
Size

187KB
MD5

42584c42d34a82ea70b90aa746a0c9a0
SHA1

ba2b38c3b4abb27ea853220993584175351f7632
SHA256

42839c019c001285d90b515e1d474dd6f965c152982d65bb4dbbd485fb298b07
SHA512

fb7ad54fe751fbe7afa86983f8d5783e265031dd40e6e5685c07624c254d1c1fd77025de2eef61e2111317a26d74651c878de3d019d482879c0e47ad138b1f31
SSDEEP

3072:br4tCk6tKO/2aH+BZCKWv5gj9/SjADKUKkGedMqSXpVKZUb:/M6FLWjFSjGKUKkM/XPb

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
2960	rundll32mgr.exe

Loads dropped DLL 4 IoCs

pid	Process
2220	rundll32.exe
2220	rundll32.exe
2960	rundll32mgr.exe
2960	rundll32mgr.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2960-11-0x0000000000400000-0x000000000042A000-memory.dmp	upx
behavioral1/memory/2960-17-0x0000000000400000-0x000000000042A000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2956	2960	WerFault.exe	32

System Location Discovery: System Language Discovery 1 TTPs 2 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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32mgr.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2424 wrote to memory of 2220	2424	rundll32.exe	31
PID 2424 wrote to memory of 2220	2424	rundll32.exe	31
PID 2424 wrote to memory of 2220	2424	rundll32.exe	31
PID 2424 wrote to memory of 2220	2424	rundll32.exe	31
PID 2424 wrote to memory of 2220	2424	rundll32.exe	31
PID 2424 wrote to memory of 2220	2424	rundll32.exe	31
PID 2424 wrote to memory of 2220	2424	rundll32.exe	31
PID 2220 wrote to memory of 2960	2220	rundll32.exe	32
PID 2220 wrote to memory of 2960	2220	rundll32.exe	32
PID 2220 wrote to memory of 2960	2220	rundll32.exe	32
PID 2220 wrote to memory of 2960	2220	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_42584c42d34a82ea70b90aa746a0c9a0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2424
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_42584c42d34a82ea70b90aa746a0c9a0.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2220
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:2960
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2960 -s 180
      4⤵
      Program crash
      PID:2956

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\~TMCE85.tmp

Filesize
1.2MB

MD5
d124f55b9393c976963407dff51ffa79

SHA1
2c7bbedd79791bfb866898c85b504186db610b5d

SHA256
ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

SHA512
278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

Download Submit
\Users\Admin\AppData\Local\Temp\~TMCEB5.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
memory/2220-1-0x0000000050590000-0x00000000505C2000-memory.dmp

Filesize
200KB

Download
memory/2220-8-0x0000000050590000-0x00000000505C2000-memory.dmp

Filesize
200KB

Download
memory/2960-11-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/2960-17-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download