c41ac9475f9cf98355758e757040f4d7ece9f58e5308715bc511f72a231b1613

General

Target

fb273fcdc29af424cda3607500c60b98_JaffaCakes118.exe
Size

769KB
MD5

fb273fcdc29af424cda3607500c60b98
SHA1

51b2bb61e87d07e61901d2087942ef71b6dc20ad
SHA256

c41ac9475f9cf98355758e757040f4d7ece9f58e5308715bc511f72a231b1613
SHA512

79ee6265b72ebae004e47dadb79df9326b74448485e822507681fb7e5438e7f2e798b729e3c46a8d1d9b9fbfe58db9bf9426d252b7ec1e2ad43733e89119a540
SSDEEP

12288:6CqIuMQh1EUedx2mZ6ivA1jwHSr/ROSQ8upuDi6VWSe3aG0I+O81AYoURW8BKNP:6RIuMWedx20MwyrcSUQdWvjU1ASY

Score

7^/10

discovery upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	fb273fcdc29af424cda3607500c60b98_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
1232	svchosty.exe
4804	svchosty.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4632-0-0x0000000000400000-0x00000000004C3000-memory.dmp	upx
behavioral2/files/0x00090000000233f6-8.dat	upx
behavioral2/memory/1232-12-0x0000000000400000-0x000000000047B000-memory.dmp	upx
behavioral2/memory/1232-16-0x0000000000400000-0x000000000047B000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4336	4804	WerFault.exe	84
3508	4804	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 3 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	fb273fcdc29af424cda3607500c60b98_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchosty.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchosty.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1232	svchosty.exe
1232	svchosty.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4632 wrote to memory of 1232	4632	fb273fcdc29af424cda3607500c60b98_JaffaCakes118.exe	82
PID 4632 wrote to memory of 1232	4632	fb273fcdc29af424cda3607500c60b98_JaffaCakes118.exe	82
PID 4632 wrote to memory of 1232	4632	fb273fcdc29af424cda3607500c60b98_JaffaCakes118.exe	82
PID 1232 wrote to memory of 4804	1232	svchosty.exe	84
PID 1232 wrote to memory of 4804	1232	svchosty.exe	84
PID 1232 wrote to memory of 4804	1232	svchosty.exe	84

C:\Users\Admin\AppData\Local\Temp\fb273fcdc29af424cda3607500c60b98_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fb273fcdc29af424cda3607500c60b98_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4632
- C:\Users\Admin\AppData\Local\Temp\svchosty.exe
  "C:\Users\Admin\AppData\Local\Temp\svchosty.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1232
- - C:\Users\Admin\AppData\Local\Temp\svchosty.exe
    C:\Users\Admin\AppData\Local\Temp\svchosty.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4804
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4804 -s 436
      4⤵
      Program crash
      PID:4336
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4804 -s 456
      4⤵
      Program crash
      PID:3508

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4804 -ip 4804
1⤵
PID:2240

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4804 -ip 4804
1⤵
PID:4948

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\svchosty.exe

Filesize
312KB

MD5
5a2bebecff3806d59462205061c54688

SHA1
ac80e073d32f9f3b17d150969e7729627072b80e

SHA256
02c623f0f0a60f06b16f4b40306b26e71b047d35eaa0195982696225c5d57e1f

SHA512
89b6012ec78d69067cbceb89a7cce6c75415c1d0dee87c16c3e142c68b283c510cc3a02687b084bf6689355d604ea41f970ef66ddef9742c9d8601d89a4836ed

Download Submit
memory/1232-16-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/1232-20-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/1232-26-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/1232-24-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/1232-12-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/1232-18-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/1232-17-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/4632-2-0x00000000023D0000-0x000000000242D000-memory.dmp

Filesize
372KB

Download
memory/4632-14-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/4632-15-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/4632-0-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/4632-1-0x0000000002310000-0x00000000023CA000-memory.dmp

Filesize
744KB

Download
memory/4632-3-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/4804-21-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/4804-23-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download

Analysis

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