4a6d4f40995b55186b5d39f4021c7c576b10752d4b2f681f02f85c768358090a

Analysis

max time kernel
134s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
18/04/2024, 14:42

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General

Target

f837268bdb215a57477bec253da6f8a6_JaffaCakes118.exe
Size

47KB
MD5

f837268bdb215a57477bec253da6f8a6
SHA1

d553a3f9a957d430ded10c4aaf1686c737bd9150
SHA256

4a6d4f40995b55186b5d39f4021c7c576b10752d4b2f681f02f85c768358090a
SHA512

fa5fb061404c2daab65be56d50ab1088c8fe4875bab34f89615358429b05e3b09b3dab69b18c9a83619be5a7002bb5d01e1f4534f1dc257946a0eed5bf9daf55
SSDEEP

768:XLwEjRteQNLrE1Wjpqjl9x23xInzx9j1wrXJ:7xpWWMJ3zjj1wl

Score

7^/10

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-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\International\Geo\Nation	f837268bdb215a57477bec253da6f8a6_JaffaCakes118.exe

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
628	4544	WerFault.exe	87
2052	4544	WerFault.exe	87

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000_Classes\Local Settings	f837268bdb215a57477bec253da6f8a6_JaffaCakes118.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
668	NOTEPAD.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4544 wrote to memory of 668	4544	f837268bdb215a57477bec253da6f8a6_JaffaCakes118.exe	88
PID 4544 wrote to memory of 668	4544	f837268bdb215a57477bec253da6f8a6_JaffaCakes118.exe	88
PID 4544 wrote to memory of 668	4544	f837268bdb215a57477bec253da6f8a6_JaffaCakes118.exe	88

C:\Users\Admin\AppData\Local\Temp\f837268bdb215a57477bec253da6f8a6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f837268bdb215a57477bec253da6f8a6_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4544
- C:\Windows\SysWOW64\NOTEPAD.EXE
  "C:\Windows\system32\NOTEPAD.EXE" C:\000.TXT
  2⤵
  - Opens file in notepad (likely ransom note)
  PID:668
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4544 -s 584
  2⤵
  - Program crash
  PID:628
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4544 -s 852
  2⤵
  - Program crash
  PID:2052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4544 -ip 4544
1⤵
PID:3120

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4544 -ip 4544
1⤵
PID:3528

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\000.TXT

Filesize
104B

MD5
6996e9b774255630e147f2f410728ef8

SHA1
68db4c7a1631c0b2f19a4616d2b42db924d9b9df

SHA256
4e42b1e6cf674c6e71012fc597f6d15acbb47bd7f0133d5b1baf3761a7fdfefe

SHA512
4cb5eadbf073754db5ec97bb1e1168988f9920cf308fc53125a0445422d2c4416db5af360c76a6de37082566dce8637126c3ba084f781745b71d8a4a946e43e0

Download Submit
memory/4544-3-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download