60a99b042043f977b85960946142f25eae8f641207f18e77a58856881b4ba409

Analysis

max time kernel
150s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19-09-2024 06:47

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General

Target

eac9d611a18abaa79ee511e9aea465a7_JaffaCakes118.exe
Size

11KB
MD5

eac9d611a18abaa79ee511e9aea465a7
SHA1

19815e494a63546af51d1fb9bcb92b5dbba0503e
SHA256

60a99b042043f977b85960946142f25eae8f641207f18e77a58856881b4ba409
SHA512

5cdc53ce67e4daaa04db9bbf9ba8085b82c07ebbbb6b5c4ec3a447361cf705afc894fb54e1debf316e3ef3762c87be49dd0bd98f24229899f7a4b61d065639a3
SSDEEP

192:cOErlncuFLrflfLN8EMOGk0XhhT09GP1sHOEF/NKyk6V5qxiwc5:cOErln5dWEjGk0XGsEpcypVA6

Score

8^/10

discovery persistence privilege_escalation upx

Malware Config

Signatures

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

Executes dropped EXE 1 IoCs

pid	Process
4888	cmonosk.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1940-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/files/0x00070000000233db-4.dat	upx
behavioral2/memory/1940-6-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/memory/4888-9-0x0000000000400000-0x000000000040F000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\cmonos.dll	eac9d611a18abaa79ee511e9aea465a7_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\cmonosk.exe	eac9d611a18abaa79ee511e9aea465a7_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\cmonosk.exe	eac9d611a18abaa79ee511e9aea465a7_JaffaCakes118.exe

Event Triggered Execution: Accessibility Features 1 TTPs
Windows contains accessibility features that may be used by adversaries to establish persistence and/or elevate privileges.
persistence privilege_escalation

Accessibility Features
T1546.008

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	eac9d611a18abaa79ee511e9aea465a7_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmonosk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1940 wrote to memory of 4888	1940	eac9d611a18abaa79ee511e9aea465a7_JaffaCakes118.exe	83
PID 1940 wrote to memory of 4888	1940	eac9d611a18abaa79ee511e9aea465a7_JaffaCakes118.exe	83
PID 1940 wrote to memory of 4888	1940	eac9d611a18abaa79ee511e9aea465a7_JaffaCakes118.exe	83
PID 1940 wrote to memory of 2132	1940	eac9d611a18abaa79ee511e9aea465a7_JaffaCakes118.exe	92
PID 1940 wrote to memory of 2132	1940	eac9d611a18abaa79ee511e9aea465a7_JaffaCakes118.exe	92
PID 1940 wrote to memory of 2132	1940	eac9d611a18abaa79ee511e9aea465a7_JaffaCakes118.exe	92

C:\Users\Admin\AppData\Local\Temp\eac9d611a18abaa79ee511e9aea465a7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\eac9d611a18abaa79ee511e9aea465a7_JaffaCakes118.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1940
- C:\Windows\SysWOW64\cmonosk.exe
  C:\Windows\system32\cmonosk.exe ˜‰
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4888
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\eac9d611a18abaa79ee511e9aea465a7_JaffaCakes118.exe.bat
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2132

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

Accessibility Features

T1546.008

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

Accessibility Features

T1546.008

AppInit DLLs

T1546.010

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\eac9d611a18abaa79ee511e9aea465a7_JaffaCakes118.exe.bat

Filesize
210B

MD5
8b45e9a53cab0aad5b8ef9d757f015a7

SHA1
696e41003eff5c8e8a73cf455623d0ee6d8ca14a

SHA256
f7731b055d1b3e61714831fe304a614b2f1e252df8d756b005465e8a4d8504be

SHA512
8c6d24568759059e90b0b40d3f7760249f5523e059e11590f82bd2afe9d227a989be65f3ada145cd4a8de57e1f6ab6b63cab7f0ea0c623326a6264a78290e6e1

Download Submit
C:\Windows\SysWOW64\cmonosk.exe

Filesize
11KB

MD5
eac9d611a18abaa79ee511e9aea465a7

SHA1
19815e494a63546af51d1fb9bcb92b5dbba0503e

SHA256
60a99b042043f977b85960946142f25eae8f641207f18e77a58856881b4ba409

SHA512
5cdc53ce67e4daaa04db9bbf9ba8085b82c07ebbbb6b5c4ec3a447361cf705afc894fb54e1debf316e3ef3762c87be49dd0bd98f24229899f7a4b61d065639a3

Download Submit
memory/1940-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/1940-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4888-9-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download