7bd032519786e19b7da359d254da990a5734298bbea584a42bd7c0713b005a77

Analysis

max time kernel
139s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21/08/2024, 19:34

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General

Target

b4c1769130661d0bdfd97da5cdc48dfd_JaffaCakes118.dll
Size

678KB
MD5

b4c1769130661d0bdfd97da5cdc48dfd
SHA1

9efbce6293ac36086ad53acf375c5ed1a857f01b
SHA256

7bd032519786e19b7da359d254da990a5734298bbea584a42bd7c0713b005a77
SHA512

9b04704cc1e0b6625baeae10196d5d63665bec6829291300db59b92b5a67803f452a5e4346b3a5fd39732e7419acf3426aef7898c0039cf577ef08270f8e1f12
SSDEEP

12288:a4hUaFty+yr+Ts4e3kmYn0YaAsPko8dhM5wzTrr5v3Q2KWHQR:abaFty+yr+Ts4e3kmYn0YaAsB+M5STru

Score

8^/10

defense_evasion discovery persistence

Malware Config

Signatures

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Cryptographic Services\Parameters\ServiceDll = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b4c1769130661d0bdfd97da5cdc48dfd_JaffaCakes118.dll"	rundll32.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	rundll32.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004
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 4 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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5100	rundll32.exe
5100	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1808	rundll32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3172 wrote to memory of 1808	3172	rundll32.exe	86
PID 3172 wrote to memory of 1808	3172	rundll32.exe	86
PID 3172 wrote to memory of 1808	3172	rundll32.exe	86
PID 4944 wrote to memory of 5100	4944	svchost.exe	88
PID 4944 wrote to memory of 5100	4944	svchost.exe	88
PID 4944 wrote to memory of 5100	4944	svchost.exe	88
PID 1808 wrote to memory of 4132	1808	rundll32.exe	89
PID 1808 wrote to memory of 4132	1808	rundll32.exe	89
PID 1808 wrote to memory of 4132	1808	rundll32.exe	89

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b4c1769130661d0bdfd97da5cdc48dfd_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3172
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b4c1769130661d0bdfd97da5cdc48dfd_JaffaCakes118.dll,#1
  2⤵
  - Server Software Component: Terminal Services DLL
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1808
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c del "C:\Windows\SysWOW64\rundll32.exe" > nul
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4132

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Cryptographic Services"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4944
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe c:\users\admin\appdata\local\temp\b4c1769130661d0bdfd97da5cdc48dfd_jaffacakes118.dll, Launch
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:5100

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Server Software Component

T1505

Terminal Services DLL

T1505.005

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1808-0-0x0000000075410000-0x0000000075536000-memory.dmp

Filesize
1.1MB

Download
memory/4944-2-0x0000000075410000-0x0000000075536000-memory.dmp

Filesize
1.1MB

Download
memory/5100-1-0x0000000075410000-0x0000000075536000-memory.dmp

Filesize
1.1MB

Download
memory/5100-3-0x0000000075410000-0x0000000075536000-memory.dmp

Filesize
1.1MB

Download