39f4e2844ab79f64582637a9788ef0241330fc7c978cc47a25edcb4d52e5249d

Analysis

max time kernel
95s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
27/01/2025, 14:54

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General

Target
JaffaCakes118_40b6c94f6c9a61a523f8b0bc982205f9.exe
Size 68KB
Sample250127-r96afatmdw
SHA256 39f4e2844ab79f64582637a9788ef0241330fc7c978cc47a25edcb4d52e5249d
MD5 40b6c94f6c9a61a523f8b0bc982205f9
SHA1 3dd75cb3dfa8e2f116e7de5b9db12ad90bd21c75
SHA512 7dfda3212709712ce8d81c2539118922d4daa3dc5fe7423562e20845c42f939ba1b627becc77d09c52c0c6f27f52d2ec2fdbc7a0c693cf5d41dc714b0f66d5c8
SSDEEP 768:/fYAoGgNTT4aHr3BH7zX7f5aWRoHa3hLP2FXKjuuzwJ:/Q6gxXlaW+HaNP2cju
MD5 SHA1 SHA512 SSDEEP

Score

6^/10

adware discovery persistence stealer

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 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\gdien32 = "C:\\Windows\\system32\\gdien32.exe"	JaffaCakes118_40b6c94f6c9a61a523f8b0bc982205f9.exe

Installs/modifies Browser Helper Object 2 TTPs 1 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{A0496108-A6BA-93D6-E9DC-00707B126392}	JaffaCakes118_40b6c94f6c9a61a523f8b0bc982205f9.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\gdien32.exe	JaffaCakes118_40b6c94f6c9a61a523f8b0bc982205f9.exe
File created	C:\Windows\SysWOW64\lmrtend.dll	JaffaCakes118_40b6c94f6c9a61a523f8b0bc982205f9.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	JaffaCakes118_40b6c94f6c9a61a523f8b0bc982205f9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A0496108-A6BA-93D6-E9DC-00707B126392}	JaffaCakes118_40b6c94f6c9a61a523f8b0bc982205f9.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A0496108-A6BA-93D6-E9DC-00707B126392}\InprocServer32	JaffaCakes118_40b6c94f6c9a61a523f8b0bc982205f9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A0496108-A6BA-93D6-E9DC-00707B126392}\InprocServer32\ = "C:\\Windows\\SysWow64\\lmrtend.dll"	JaffaCakes118_40b6c94f6c9a61a523f8b0bc982205f9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A0496108-A6BA-93D6-E9DC-00707B126392}\InprocServer32\ThreadingModel = "Apartment"	JaffaCakes118_40b6c94f6c9a61a523f8b0bc982205f9.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000_Classes\Local Settings	JaffaCakes118_40b6c94f6c9a61a523f8b0bc982205f9.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5092 wrote to memory of 4228	5092	JaffaCakes118_40b6c94f6c9a61a523f8b0bc982205f9.exe	82
PID 5092 wrote to memory of 4228	5092	JaffaCakes118_40b6c94f6c9a61a523f8b0bc982205f9.exe	82
PID 5092 wrote to memory of 4228	5092	JaffaCakes118_40b6c94f6c9a61a523f8b0bc982205f9.exe	82

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40b6c94f6c9a61a523f8b0bc982205f9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40b6c94f6c9a61a523f8b0bc982205f9.exe"
1⤵
- Adds Run key to start application
- Installs/modifies Browser Helper Object
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:5092
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\Win32en.baT""
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4228

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

Browser Extensions

T1176

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

Win32en.baT

Path C:\Users\Admin\AppData\Local\Temp\Win32en.baT
Size 261B
SHA256 9a4ef51e06a32cad9434cfaf832c652dafe81f4bdcdc703575e715c30bc6bc3b
MD5 e3f0dcf942dc5d42cc04a578275e9eec
SHA1 1f70578f798f3e1aabed2103b47d7ae8c59401cc
SHA512 c653f45c8e864e26e5d9b428c9fd46351ea8c69fd8331b57aa2fd80e8629819a53a9d7b4b521049137c2e45147b5e62d4c6cc70f32b11de3d2f0d3a6cf5c90a8
MD5 SHA1 SHA512

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads