92a895d9e728ab19001714185a168495b6cdbe190b908d8a10b55dc0e9564ca0

Analysis

max time kernel
139s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
09/08/2024, 20:35

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General

Target

8376cb293ce03e340acb05294cfa6b0e_JaffaCakes118.exe
Size

20KB
MD5

8376cb293ce03e340acb05294cfa6b0e
SHA1

1d273552c640fcf223c9d9ab21503e7c1361f1e3
SHA256

92a895d9e728ab19001714185a168495b6cdbe190b908d8a10b55dc0e9564ca0
SHA512

2645af05dcecb04511784322af5f922e7396319441dfb314d2fecc4e29c95ba06b01f9159e2d015279622a2c008c626e30550bb65f78b30e81fc2ed40f927289
SSDEEP

384:1jMi8y5iK0DoKpBe/pQAQStmldlZyycU+b0njzKJPpt9G:1jvds9tSGyP0jzKJPpto

Score

8^/10

discovery evasion persistence

Malware Config

Signatures

Disables Task Manager via registry modification
evasion

Executes dropped EXE 1 IoCs

pid	Process
3696	frmwrk32.exe

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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Framework Windows = "frmwrk32.exe"	8376cb293ce03e340acb05294cfa6b0e_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Framework Windows = "frmwrk32.exe"	frmwrk32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\frmwrk32.exe	8376cb293ce03e340acb05294cfa6b0e_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\frmwrk32.exe	8376cb293ce03e340acb05294cfa6b0e_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\frmwrk32.exe	frmwrk32.exe
File opened for modification	C:\Windows\SysWOW64\uniq.tll	frmwrk32.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	8376cb293ce03e340acb05294cfa6b0e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	frmwrk32.exe

Suspicious use of FindShellTrayWindow 5 IoCs

pid	Process
3696	frmwrk32.exe
3696	frmwrk32.exe
3696	frmwrk32.exe
3696	frmwrk32.exe
3696	frmwrk32.exe

Suspicious use of SendNotifyMessage 5 IoCs

pid	Process
3696	frmwrk32.exe
3696	frmwrk32.exe
3696	frmwrk32.exe
3696	frmwrk32.exe
3696	frmwrk32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 972 wrote to memory of 3696	972	8376cb293ce03e340acb05294cfa6b0e_JaffaCakes118.exe	84
PID 972 wrote to memory of 3696	972	8376cb293ce03e340acb05294cfa6b0e_JaffaCakes118.exe	84
PID 972 wrote to memory of 3696	972	8376cb293ce03e340acb05294cfa6b0e_JaffaCakes118.exe	84

System policy modification 1 TTPs 5 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	frmwrk32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoSetActiveDesktop = "1"	frmwrk32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop	frmwrk32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop\NoChangingWallpaper = "1"	frmwrk32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoActiveDesktopChanges = "1"	frmwrk32.exe

C:\Users\Admin\AppData\Local\Temp\8376cb293ce03e340acb05294cfa6b0e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8376cb293ce03e340acb05294cfa6b0e_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:972
- C:\Windows\SysWOW64\frmwrk32.exe
  C:\Windows\system32\frmwrk32.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - System policy modification
  PID:3696

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\SysWOW64\frmwrk32.exe

Filesize
20KB

MD5
8376cb293ce03e340acb05294cfa6b0e

SHA1
1d273552c640fcf223c9d9ab21503e7c1361f1e3

SHA256
92a895d9e728ab19001714185a168495b6cdbe190b908d8a10b55dc0e9564ca0

SHA512
2645af05dcecb04511784322af5f922e7396319441dfb314d2fecc4e29c95ba06b01f9159e2d015279622a2c008c626e30550bb65f78b30e81fc2ed40f927289

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads