6421d5bad46522ace156f859e334d420f1750d959171f7829021a7d0cfdd6c31

Analysis

max time kernel
142s
max time network
110s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
23/08/2024, 13:16

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General

Target

bbe1eeb66dbca72dea3e119ddc35d6a4_JaffaCakes118.exe
Size

60KB
MD5

bbe1eeb66dbca72dea3e119ddc35d6a4
SHA1

3cb890e17f29e297ae31b855c453051881d2c8ad
SHA256

6421d5bad46522ace156f859e334d420f1750d959171f7829021a7d0cfdd6c31
SHA512

d3c7f3314bc22cc711483d6fb80d14880234ae885b684f974444c8e622197e943f778ce6b908dc6cd63193bb9d210febc263fbbb6f0de49a2835ef1f0acb4681
SSDEEP

1536:kzCsmUHn5l/pohXSDrFSJLXtwHUOdc4c3Rt:1UZlxoIrFOLQdcBt

Score

8^/10

discovery persistence

Malware Config

Signatures

Adds policy Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	bbe1eeb66dbca72dea3e119ddc35d6a4_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\CmSTP = "C:\\Users\\Admin\\LOCALS~1\\APPLIC~1\\MICROS~1\\cmstp.exe /waitservice"	bbe1eeb66dbca72dea3e119ddc35d6a4_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	bbe1eeb66dbca72dea3e119ddc35d6a4_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\CmSTP = "C:\\Windows\\cmstp.exe /waitservice"	bbe1eeb66dbca72dea3e119ddc35d6a4_JaffaCakes118.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\drivers\cmstp.exe	bbe1eeb66dbca72dea3e119ddc35d6a4_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
4416	cmstp.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\cmstp.exe	bbe1eeb66dbca72dea3e119ddc35d6a4_JaffaCakes118.exe
File opened for modification	C:\Windows\cmstp.exe	bbe1eeb66dbca72dea3e119ddc35d6a4_JaffaCakes118.exe
File created	C:\Windows\System\dllhst3g.exe	bbe1eeb66dbca72dea3e119ddc35d6a4_JaffaCakes118.exe

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	cmstp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bbe1eeb66dbca72dea3e119ddc35d6a4_JaffaCakes118.exe

Modifies data under HKEY_USERS 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT	bbe1eeb66dbca72dea3e119ddc35d6a4_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	bbe1eeb66dbca72dea3e119ddc35d6a4_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	bbe1eeb66dbca72dea3e119ddc35d6a4_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\DllHst = "C:\\Windows\\System\\dllhst3g.exe /waitservice"	bbe1eeb66dbca72dea3e119ddc35d6a4_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer	bbe1eeb66dbca72dea3e119ddc35d6a4_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	bbe1eeb66dbca72dea3e119ddc35d6a4_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	bbe1eeb66dbca72dea3e119ddc35d6a4_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	bbe1eeb66dbca72dea3e119ddc35d6a4_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies	bbe1eeb66dbca72dea3e119ddc35d6a4_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2608 wrote to memory of 4416	2608	bbe1eeb66dbca72dea3e119ddc35d6a4_JaffaCakes118.exe	84
PID 2608 wrote to memory of 4416	2608	bbe1eeb66dbca72dea3e119ddc35d6a4_JaffaCakes118.exe	84
PID 2608 wrote to memory of 4416	2608	bbe1eeb66dbca72dea3e119ddc35d6a4_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\bbe1eeb66dbca72dea3e119ddc35d6a4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\bbe1eeb66dbca72dea3e119ddc35d6a4_JaffaCakes118.exe"
1⤵
- Adds policy Run key to start application
- Drops file in Drivers directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious use of WriteProcessMemory
PID:2608
- C:\Windows\SysWOW64\drivers\cmstp.exe
  C:\Windows\System32\drivers\cmstp.exe /waitservice
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4416

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\cmstp.exe

Filesize
60KB

MD5
bbe1eeb66dbca72dea3e119ddc35d6a4

SHA1
3cb890e17f29e297ae31b855c453051881d2c8ad

SHA256
6421d5bad46522ace156f859e334d420f1750d959171f7829021a7d0cfdd6c31

SHA512
d3c7f3314bc22cc711483d6fb80d14880234ae885b684f974444c8e622197e943f778ce6b908dc6cd63193bb9d210febc263fbbb6f0de49a2835ef1f0acb4681

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads