2156a83263417bc3b1548692be70bdad2424a09f282a48b242eae8a92ed5ef22

Analysis

max time kernel
135s
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
13/10/2024, 17:14

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General

Target

411838691e0159f4d66a5e566c10c2fb_JaffaCakes118.dll
Size

448KB
MD5

411838691e0159f4d66a5e566c10c2fb
SHA1

08e0494fc597127895076bc42bf29e03750df89c
SHA256

2156a83263417bc3b1548692be70bdad2424a09f282a48b242eae8a92ed5ef22
SHA512

24fb01f5e42ff7ef1fae30cc9f37f95772f059e11c287dc34ade6db6b61ae5c6f140add8f944175731cffc2f966247204aa394801ac86cb5e77fc7658c012c5c
SSDEEP

12288:goz83OtIEzW+/m/AyF7bCrO/Ec4WOMDns:dbIEzW+/m/rF7kcZ4WvDns

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4100	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
behavioral2/files/0x000d000000023af9-3.dat	upx
behavioral2/memory/4100-5-0x0000000000400000-0x0000000000459000-memory.dmp	upx

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2280	3520	WerFault.exe	85
2192	4100	WerFault.exe	87

System Location Discovery: System Language Discovery 1 TTPs 1 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

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2336 wrote to memory of 3520	2336	rundll32.exe	85
PID 2336 wrote to memory of 3520	2336	rundll32.exe	85
PID 2336 wrote to memory of 3520	2336	rundll32.exe	85
PID 3520 wrote to memory of 4100	3520	rundll32.exe	87
PID 3520 wrote to memory of 4100	3520	rundll32.exe	87
PID 3520 wrote to memory of 4100	3520	rundll32.exe	87

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\411838691e0159f4d66a5e566c10c2fb_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2336
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\411838691e0159f4d66a5e566c10c2fb_JaffaCakes118.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3520
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    PID:4100
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4100 -s 268
      4⤵
      Program crash
      PID:2192
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3520 -s 608
    3⤵
    - Program crash
    PID:2280

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4100 -ip 4100
1⤵
PID:4464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 3520 -ip 3520
1⤵
PID:2304

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
104KB

MD5
820d63bce2d38939d98eed99d4a10a3e

SHA1
432bf652dd2d3c84c8f15b0f0fc60bef375c688c

SHA256
0f6be6c3bbc523cc198e72f11996e630ea3dcf05f302a16559746f1b24795a81

SHA512
14e2f56142a34162a94b037e8dac485f68c34c3a8abe0cb7c0f3d27624a715dbb96786ad2eb7aa12d1f569ca3957409c703eae7d2caa6776d8d73fe1a3218168

Download Submit
memory/3520-1-0x000000007C340000-0x000000007C3B1000-memory.dmp

Filesize
452KB

Download
memory/3520-8-0x000000007C340000-0x000000007C3B1000-memory.dmp

Filesize
452KB

Download
memory/4100-6-0x0000000000570000-0x0000000000571000-memory.dmp

Filesize
4KB

Download
memory/4100-5-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download