ramnit | 43f82a3435cb672e8f5224d1a1446508e21c0de01b61b75689c011905d82aa67

Analysis

max time kernel
93s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31/12/2024, 03:00

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General

Target

JaffaCakes118_01e111bf41d17cf13d2d066f4d62090b.dll
Size

628KB
MD5

01e111bf41d17cf13d2d066f4d62090b
SHA1

b07e3028b36e8f3d7713496a3b5f33063d6c590b
SHA256

43f82a3435cb672e8f5224d1a1446508e21c0de01b61b75689c011905d82aa67
SHA512

c69d748ad66a53642df5493e97fa85dab2cc132debcfd1959550b6f598789b63a4ecf6ebd0707f01f0fa9199e6fc5506dad8f6b987cf9452d8814b266f3c013c
SSDEEP

12288:DhpUrEIZJqr1AkBWwNa5R0EYl795/amaX3QXaPKUVdsYA4yfSW9wdyW8N:D/jG01NHXaPR+Y1yPwcN

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
4308	rundll32mgr.exe

Loads dropped DLL 1 IoCs

pid	Process
4308	rundll32mgr.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4308-7-0x0000000000400000-0x000000000046B000-memory.dmp	upx

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1116	2096	WerFault.exe	82
3780	4308	WerFault.exe	83

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 6 IoCs

description	pid	Process	procid_target
PID 3288 wrote to memory of 2096	3288	rundll32.exe	82
PID 3288 wrote to memory of 2096	3288	rundll32.exe	82
PID 3288 wrote to memory of 2096	3288	rundll32.exe	82
PID 2096 wrote to memory of 4308	2096	rundll32.exe	83
PID 2096 wrote to memory of 4308	2096	rundll32.exe	83
PID 2096 wrote to memory of 4308	2096	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_01e111bf41d17cf13d2d066f4d62090b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3288
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_01e111bf41d17cf13d2d066f4d62090b.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2096
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:4308
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4308 -s 10188
      4⤵
      Program crash
      PID:3780
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2096 -s 644
    3⤵
    - Program crash
    PID:1116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2096 -ip 2096
1⤵
PID:4120

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4308 -ip 4308
1⤵
PID:4984

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

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Downloads

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

Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

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

Filesize
169KB

MD5
335f0aeb047ac7782090828b5d4fa10e

SHA1
73355b1c843bec7be94b0a39efb5ff3b1b4ee547

SHA256
6df4c841c30d414cfee93573963036abfd669627081705c6a0d9e65fd6846f53

SHA512
635d1e473a0f2cebad020f80e211b55bcb12742ddde1e65db182b077c8873f639b491ab8d11a6781095cf16729e03f93696514de72b58efad8157fad3ff399f1

Download Submit
memory/2096-0-0x0000000010000000-0x000000001009E000-memory.dmp

Filesize
632KB

Download
memory/2096-10-0x0000000010000000-0x000000001009E000-memory.dmp

Filesize
632KB

Download
memory/4308-7-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download
memory/4308-5-0x0000000002070000-0x00000000020DB000-memory.dmp

Filesize
428KB

Download