e388f211b7773443e09862bfbf2e4cd896e304ecfc0bafa73abeb646b1862baa

Analysis

max time kernel
140s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
20-06-2024 04:01

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General

Target

02a3ac6f9cef56c354be8207b9ec347f_JaffaCakes118.exe
Size

4.2MB
MD5

02a3ac6f9cef56c354be8207b9ec347f
SHA1

0db68a8efb682f75a6ef53b28d9c4857b47e1cbd
SHA256

e388f211b7773443e09862bfbf2e4cd896e304ecfc0bafa73abeb646b1862baa
SHA512

c57a73691c8c36cbcba01861d28d0c917de6ca2e74098a5faab5b6611dc56d1ceea7179bc6c66238d4c3c780ab3faf770354abc892bb086c495c6473625b7885
SSDEEP

98304:BuukenKgDDMV5wFRC8RtUC2fVGM4c2f8XQQdNH76XesDGz43cm0M0dUg0a:Buuk+KjV5uRCStpSVd4c2f8gal6Xj2Xt

Score

7^/10

discovery persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4732	_3326.tmpac7d.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2740-0-0x0000000000400000-0x0000000000C16000-memory.dmp	upx
behavioral2/memory/2740-2-0x0000000000400000-0x0000000000C16000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2447855248-390457009-3660902674-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\8n1b21usd7sh = "C:\\Users\\Admin\\AppData\\Local\\Temp\\02a3ac6f9cef56c354be8207b9ec347f_JaffaCakes118.exe"	02a3ac6f9cef56c354be8207b9ec347f_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2447855248-390457009-3660902674-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Security Monitor = "\"C:\\Users\\Admin\\AppData\\Roaming\\Security Monitor\\Security_Monitor2012.exe\" /STARTUP"	02a3ac6f9cef56c354be8207b9ec347f_JaffaCakes118.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2336	2740	WerFault.exe	82

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2740	02a3ac6f9cef56c354be8207b9ec347f_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2740	02a3ac6f9cef56c354be8207b9ec347f_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2740 wrote to memory of 4732	2740	02a3ac6f9cef56c354be8207b9ec347f_JaffaCakes118.exe	85
PID 2740 wrote to memory of 4732	2740	02a3ac6f9cef56c354be8207b9ec347f_JaffaCakes118.exe	85
PID 2740 wrote to memory of 4732	2740	02a3ac6f9cef56c354be8207b9ec347f_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\02a3ac6f9cef56c354be8207b9ec347f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\02a3ac6f9cef56c354be8207b9ec347f_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2740
- C:\Users\Admin\AppData\Local\Temp\_3326.tmpac7d.exe
  "C:\Users\Admin\AppData\Local\Temp\_3326.tmpac7d.exe" -p"03:03 AM" -y -o"C:\Users\Admin\AppData\Roaming\Security Monitor"
  2⤵
  - Executes dropped EXE
  PID:4732
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2740 -s 872
  2⤵
  - Program crash
  PID:2336

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2740 -ip 2740
1⤵
PID:3080

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\_3326.tmpac7d.exe

Filesize
2.6MB

MD5
e72151c673615eae26b397347ab5e6d9

SHA1
a3abfd205a8fe0145df13e27499a2ab257972ec4

SHA256
7268651ac9e0bd46e13e02c73688bf61987d2e09e51e5b63590aa2efabd233c0

SHA512
055b2fb8fd2e4500b8a68776b40950d352d157fef0d7e13f81f56eecb3ffd34c632f48288ac4a591f716dbdc1319dd7dbb278f4579b838050045e1f77d3e12d4

Download Submit
memory/2740-0-0x0000000000400000-0x0000000000C16000-memory.dmp

Filesize
8.1MB

Download
memory/2740-1-0x00000000011C0000-0x0000000001600000-memory.dmp

Filesize
4.2MB

Download
memory/2740-2-0x0000000000400000-0x0000000000C16000-memory.dmp

Filesize
8.1MB

Download
memory/2740-5-0x0000000000CC0000-0x0000000000CC1000-memory.dmp

Filesize
4KB

Download
memory/2740-6-0x0000000000401000-0x00000000007DE000-memory.dmp

Filesize
3.9MB

Download
memory/2740-22-0x0000000000400000-0x0000000000C16000-memory.dmp

Filesize
8.1MB

Download
memory/2740-23-0x00000000011C0000-0x0000000001600000-memory.dmp

Filesize
4.2MB

Download
memory/2740-24-0x0000000000401000-0x00000000007DE000-memory.dmp

Filesize
3.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads