ramnit | 16f18bdea5e203a5a637a3584c77dd7d055924cee6b61811cb733bba306bb325

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-01-2025 19:49

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General

Target

JaffaCakes118_1a9492f56e3429e271925cce52bf2f4f.dll
Size

248KB
MD5

1a9492f56e3429e271925cce52bf2f4f
SHA1

c718cb1abe07840efddc437ea4e585617c33805a
SHA256

16f18bdea5e203a5a637a3584c77dd7d055924cee6b61811cb733bba306bb325
SHA512

18b3317e925530fb97ce6886a86e1ba56ca0bb74058df0aae64110b09ad969fe7e26c07d745d07ce86f0cd4ebdd280eb96d3c9baebfd05591c58ddc1cb3bb477
SSDEEP

6144:BYD4f9UAwELp+NBOuABp/uwUISVL1gx2uj:GD4aAJ++uADYIKLGUuj

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
1624	rundll32mgr.exe

Loads dropped DLL 1 IoCs

pid	Process
1624	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/1624-7-0x0000000000400000-0x000000000046B000-memory.dmp	upx

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3660	1624	WerFault.exe	83
408	688	WerFault.exe	82

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 3780 wrote to memory of 688	3780	rundll32.exe	82
PID 3780 wrote to memory of 688	3780	rundll32.exe	82
PID 3780 wrote to memory of 688	3780	rundll32.exe	82
PID 688 wrote to memory of 1624	688	rundll32.exe	83
PID 688 wrote to memory of 1624	688	rundll32.exe	83
PID 688 wrote to memory of 1624	688	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a9492f56e3429e271925cce52bf2f4f.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3780
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a9492f56e3429e271925cce52bf2f4f.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:688
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:1624
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1624 -s 10176
      4⤵
      Program crash
      PID:3660
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 688 -s 616
    3⤵
    - Program crash
    PID:408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 688 -ip 688
1⤵
PID:3884

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 1624 -ip 1624
1⤵
PID:704

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

C:\Users\Admin\AppData\Local\Temp\~TM98C5.tmp

Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

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

Filesize
166KB

MD5
e6f92a3c0193f5ac0933ceff45394c76

SHA1
eca049b60b27ae6439cfc8d3036784eba9987a9b

SHA256
5afb7d61c380f23251be0a712868915daa1237ecdc3ea6fb76e5c660d8b5da0a

SHA512
aa94f36ce656efaea4fafc287da0834d6d530dbc443d7595313ac677e53ecf8d4d2c98e0241640099b0dc1774b8302a5c9452efa6497b7ece0367739e73e0256

Download Submit
memory/688-1-0x0000000010000000-0x0000000010043000-memory.dmp

Filesize
268KB

Download
memory/688-10-0x0000000010000000-0x0000000010043000-memory.dmp

Filesize
268KB

Download
memory/1624-5-0x00000000005D0000-0x000000000063B000-memory.dmp

Filesize
428KB

Download
memory/1624-7-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download
memory/1624-12-0x00000000005D0000-0x000000000063B000-memory.dmp

Filesize
428KB

Download