555f1d1171b73f5eae8ab19c3d574c4d1e01c59f3d79595303ffd891fea4c349

Analysis

max time kernel
94s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-12-2024 09:27

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General

Target

e0d22cacbb3528701ae70fa8c8a464a8_JaffaCakes118.dll
Size

222KB
MD5

e0d22cacbb3528701ae70fa8c8a464a8
SHA1

b0e6997e5508e73a07c532e86e8ea391c1bc7367
SHA256

555f1d1171b73f5eae8ab19c3d574c4d1e01c59f3d79595303ffd891fea4c349
SHA512

497608652fa9c4d3237d34f616c7d7914820b05ab37d074ba5ef0ebd547b2389d3ad569fa2bd3d28d92b580090c22854377b95b0d3a3ffeb63ccfb039a3d8a83
SSDEEP

3072:AQTT2V0qYKm/M8EMXIGXmw/IYGWJ0KtBHQyhOtLDuBwmHbtKwEc5I9UKk3KaO:VTThRM8ZIGXmw/T0KtP8tpQtnIWKj

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1172	rundll32mgr.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000a000000023c0c-2.dat	upx
behavioral2/memory/1172-4-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral2/memory/1172-8-0x0000000000400000-0x0000000000456000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4464	1172	WerFault.exe	84

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 1564 wrote to memory of 4892	1564	rundll32.exe	83
PID 1564 wrote to memory of 4892	1564	rundll32.exe	83
PID 1564 wrote to memory of 4892	1564	rundll32.exe	83
PID 4892 wrote to memory of 1172	4892	rundll32.exe	84
PID 4892 wrote to memory of 1172	4892	rundll32.exe	84
PID 4892 wrote to memory of 1172	4892	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e0d22cacbb3528701ae70fa8c8a464a8_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1564
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\e0d22cacbb3528701ae70fa8c8a464a8_JaffaCakes118.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4892
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1172
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1172 -s 264
      4⤵
      Program crash
      PID:4464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1172 -ip 1172
1⤵
PID:932

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:\Windows\SysWOW64\rundll32mgr.exe

Filesize
125KB

MD5
12d840fc0b79a745c013e73c4c470467

SHA1
f47b3c28974d6199e596c365f5e7161656480100

SHA256
7ee9098ea2bc30eaea20eceb5e8cda620772c4ba2d7d6945e34ea93fb6054ccb

SHA512
de5f3cb695f1a10d897968668ea403721e09f9c66db796d932b8152edb1681dbac777efb63a2cff9d81380d09452f90470a8b77363a99f21421b9ff61fcb930a

Download Submit
memory/1172-4-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1172-6-0x0000000000680000-0x0000000000681000-memory.dmp

Filesize
4KB

Download
memory/1172-8-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/4892-1-0x000000007C630000-0x000000007C66C000-memory.dmp

Filesize
240KB

Download