030cbcb5c2acd6b5d27cff413f1535397a87fc61758c6ea42d0dae65a850aa5f

Analysis

max time kernel
92s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-01-2025 09:53

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General

Target

JaffaCakes118_50965d7ba9745f2fbf2515c93a687138.dll
Size

436KB
MD5

50965d7ba9745f2fbf2515c93a687138
SHA1

8f1d9ee570dc8565ba01bb7854d9b20811bc81d7
SHA256

030cbcb5c2acd6b5d27cff413f1535397a87fc61758c6ea42d0dae65a850aa5f
SHA512

a3f4e46ab4b54fb36706bb714ec17e2fb8abb07e3bd5c5eda530a63a1b22e4a7c8b6205b69983ec0a680b735f35abc696953558f85d12a4a3950835f494a0d9f
SSDEEP

6144:4XX8bwYYacq/tX2Qjkjjdt3r8cOosiugybxFJ6W5:aMq2N2QjkjvNuZgW5

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
964	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/0x000c000000023ba4-3.dat	upx
behavioral2/memory/964-4-0x0000000000400000-0x0000000000470000-memory.dmp	upx
behavioral2/memory/964-9-0x0000000000400000-0x0000000000470000-memory.dmp	upx

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1164	964	WerFault.exe	86
3672	3424	WerFault.exe	85

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 1560 wrote to memory of 3424	1560	rundll32.exe	85
PID 1560 wrote to memory of 3424	1560	rundll32.exe	85
PID 1560 wrote to memory of 3424	1560	rundll32.exe	85
PID 3424 wrote to memory of 964	3424	rundll32.exe	86
PID 3424 wrote to memory of 964	3424	rundll32.exe	86
PID 3424 wrote to memory of 964	3424	rundll32.exe	86

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_50965d7ba9745f2fbf2515c93a687138.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1560
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_50965d7ba9745f2fbf2515c93a687138.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3424
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:964
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 964 -s 264
      4⤵
      Program crash
      PID:1164
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3424 -s 620
    3⤵
    - Program crash
    PID:3672

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3424 -ip 3424
1⤵
PID:1988

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 964 -ip 964
1⤵
PID:5088

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:\Windows\SysWOW64\rundll32mgr.exe

Filesize
220KB

MD5
1b7fc3fa0a84470506c3028b48a5f04d

SHA1
3fa9f258fd20c92c0dd366f1520d44f61e236d3b

SHA256
9f62f582fc02ae7b3b5df9a8a90718a80773eed10828014cee2a938976ab056b

SHA512
1259215288d11be9493abc5d9babec8ff2563be3ed1aaf47fbda3f5832d7604f4f5956d09a06854ff133fb9e0971ac398966c46c743dee3f0aead6a2d0901c19

Download Submit
memory/964-4-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download
memory/964-6-0x00000000005D0000-0x00000000005D1000-memory.dmp

Filesize
4KB

Download
memory/964-9-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download
memory/3424-0-0x0000000010000000-0x0000000010077000-memory.dmp

Filesize
476KB

Download
memory/3424-7-0x0000000010000000-0x0000000010077000-memory.dmp

Filesize
476KB

Download