019026adc6150778c4884d574f074a4f9c22ab291ca5c590cca7a38f0dc6c61d

Analysis

max time kernel
131s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
20/08/2024, 00:05

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General

Target

ad223f4f7a857a8c08d91c6696452db2_JaffaCakes118.dll
Size

800KB
MD5

ad223f4f7a857a8c08d91c6696452db2
SHA1

5e65a2c3a2a50e9df909a9e055977bf9632a599d
SHA256

019026adc6150778c4884d574f074a4f9c22ab291ca5c590cca7a38f0dc6c61d
SHA512

cd92bdd7d6a0d4fb47f1060e91332b0a158df22806440332027122bbba3d7d14b447f1e8641224276fcfc128e3c6e16e0794758b1c59d7f0dfa0070157d883cf
SSDEEP

24576:4RQ20pTS4sIcpHfZQdXkmCjDsLwVR5Hg2f7g:SQyjDFU2f

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2884	rundll32Srv.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0008000000023506-3.dat	upx
behavioral2/memory/2884-4-0x0000000000400000-0x0000000000441000-memory.dmp	upx
behavioral2/memory/2884-8-0x0000000000400000-0x0000000000441000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32Srv.exe	rundll32.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3304	1916	WerFault.exe	86
3720	2884	WerFault.exe	87

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	rundll32Srv.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4296 wrote to memory of 1916	4296	rundll32.exe	86
PID 4296 wrote to memory of 1916	4296	rundll32.exe	86
PID 4296 wrote to memory of 1916	4296	rundll32.exe	86
PID 1916 wrote to memory of 2884	1916	rundll32.exe	87
PID 1916 wrote to memory of 2884	1916	rundll32.exe	87
PID 1916 wrote to memory of 2884	1916	rundll32.exe	87

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ad223f4f7a857a8c08d91c6696452db2_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4296
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ad223f4f7a857a8c08d91c6696452db2_JaffaCakes118.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1916
- - C:\Windows\SysWOW64\rundll32Srv.exe
    C:\Windows\SysWOW64\rundll32Srv.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2884
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2884 -s 272
      4⤵
      Program crash
      PID:3720
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1916 -s 728
    3⤵
    - Program crash
    PID:3304

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2884 -ip 2884
1⤵
PID:1952

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1916 -ip 1916
1⤵
PID:2412

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\rundll32Srv.exe

Filesize
94KB

MD5
f6736faa3126f64ed4a7109e40c47806

SHA1
0d50917f44d6e173bac24916c95343616dcbf18c

SHA256
bc0cb854888c155cbfed860a6546bea3c82db643df30437fe14d91194939a874

SHA512
29cc26cd4df360252917a5d913e5e4776b6d05061b464f09dbb33918491affdc15cac9e142a9227a48f27d26db1f8ee85bd3d417365d6fef9b2fd380e090efe5

Download Submit
memory/1916-0-0x0000000010000000-0x00000000100FB000-memory.dmp

Filesize
1004KB

Download
memory/1916-9-0x0000000010000000-0x00000000100FB000-memory.dmp

Filesize
1004KB

Download
memory/2884-4-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2884-6-0x0000000000560000-0x0000000000561000-memory.dmp

Filesize
4KB

Download
memory/2884-8-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download