387bae8a92730a68456eee65d2c6e714fb2e3ffedf23e34d4398e6315cfbb16f

General

Target

JaffaCakes118_8a6c314a1d028daf95e25a0b3691e548.dll
Size

612KB
MD5

8a6c314a1d028daf95e25a0b3691e548
SHA1

c6f0e702cfb98f700295c81580eaf6083887e2bb
SHA256

387bae8a92730a68456eee65d2c6e714fb2e3ffedf23e34d4398e6315cfbb16f
SHA512

d498f22fa8821285167435d533296dee43e4de0cfaa8585f32086860b4b6eda658743c9e0834e8f637e7545347c901e4f8fce2bd0032eb3a512dc71854ac7789
SSDEEP

12288:x7O9KBiABbqtPU/oAhfejKHdTt2EMzgbGT:ZvN5DftqzkST

Score

8^/10

defense_evasion discovery persistence vmprotect

Malware Config

Signatures

Blocklisted process makes network request 5 IoCs

flow	pid	Process
3	2684	rundll32.exe
5	2684	rundll32.exe
7	2684	rundll32.exe
9	2684	rundll32.exe
11	2684	rundll32.exe

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\.Net CLR\Parameters\ServiceDll = "C:\\Users\\Admin\\AppData\\Local\\Temp\\JaffaCakes118_8a6c314a1d028daf95e25a0b3691e548.dll"	rundll32.exe

VMProtect packed file 11 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

resource	yara_rule
behavioral1/memory/2828-2-0x0000000074690000-0x0000000074815000-memory.dmp	vmprotect
behavioral1/memory/2828-0-0x0000000074820000-0x00000000749A5000-memory.dmp	vmprotect
behavioral1/memory/2828-4-0x0000000074690000-0x0000000074815000-memory.dmp	vmprotect
behavioral1/memory/2872-5-0x0000000074690000-0x0000000074815000-memory.dmp	vmprotect
behavioral1/memory/2684-8-0x0000000074690000-0x0000000074815000-memory.dmp	vmprotect
behavioral1/memory/2684-7-0x0000000074690000-0x0000000074815000-memory.dmp	vmprotect
behavioral1/memory/2684-6-0x0000000074690000-0x0000000074815000-memory.dmp	vmprotect
behavioral1/memory/2684-9-0x0000000074690000-0x0000000074815000-memory.dmp	vmprotect
behavioral1/memory/2684-10-0x0000000074690000-0x0000000074815000-memory.dmp	vmprotect
behavioral1/memory/2872-11-0x0000000074690000-0x0000000074815000-memory.dmp	vmprotect
behavioral1/memory/2684-12-0x0000000074690000-0x0000000074815000-memory.dmp	vmprotect

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2684	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2828	rundll32.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1740 wrote to memory of 2828	1740	rundll32.exe	31
PID 1740 wrote to memory of 2828	1740	rundll32.exe	31
PID 1740 wrote to memory of 2828	1740	rundll32.exe	31
PID 1740 wrote to memory of 2828	1740	rundll32.exe	31
PID 1740 wrote to memory of 2828	1740	rundll32.exe	31
PID 1740 wrote to memory of 2828	1740	rundll32.exe	31
PID 1740 wrote to memory of 2828	1740	rundll32.exe	31
PID 2828 wrote to memory of 2300	2828	rundll32.exe	33
PID 2828 wrote to memory of 2300	2828	rundll32.exe	33
PID 2828 wrote to memory of 2300	2828	rundll32.exe	33
PID 2828 wrote to memory of 2300	2828	rundll32.exe	33
PID 2872 wrote to memory of 2684	2872	svchost.exe	34
PID 2872 wrote to memory of 2684	2872	svchost.exe	34
PID 2872 wrote to memory of 2684	2872	svchost.exe	34
PID 2872 wrote to memory of 2684	2872	svchost.exe	34
PID 2872 wrote to memory of 2684	2872	svchost.exe	34
PID 2872 wrote to memory of 2684	2872	svchost.exe	34
PID 2872 wrote to memory of 2684	2872	svchost.exe	34

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8a6c314a1d028daf95e25a0b3691e548.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1740
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8a6c314a1d028daf95e25a0b3691e548.dll,#1
  2⤵
  - Server Software Component: Terminal Services DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2828
- - 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:2300

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k ".Net CLR"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2872
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe c:\users\admin\appdata\local\temp\jaffacakes118_8a6c314a1d028daf95e25a0b3691e548.dll, Launch
  2⤵
  - Blocklisted process makes network request
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2684

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Server Software Component

1

T1505

Terminal Services DLL

1

T1505.005

Privilege Escalation

Defense Evasion

Indicator Removal

1

T1070

File Deletion

1

T1070.004

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2684-9-0x0000000074690000-0x0000000074815000-memory.dmp

Filesize
1.5MB

Download
memory/2684-8-0x0000000074690000-0x0000000074815000-memory.dmp

Filesize
1.5MB

Download
memory/2684-7-0x0000000074690000-0x0000000074815000-memory.dmp

Filesize
1.5MB

Download
memory/2684-6-0x0000000074690000-0x0000000074815000-memory.dmp

Filesize
1.5MB

Download
memory/2684-10-0x0000000074690000-0x0000000074815000-memory.dmp

Filesize
1.5MB

Download
memory/2684-12-0x0000000074690000-0x0000000074815000-memory.dmp

Filesize
1.5MB

Download
memory/2828-2-0x0000000074690000-0x0000000074815000-memory.dmp

Filesize
1.5MB

Download
memory/2828-1-0x0000000074820000-0x00000000749A5000-memory.dmp

Filesize
1.5MB

Download
memory/2828-0-0x0000000074820000-0x00000000749A5000-memory.dmp

Filesize
1.5MB

Download
memory/2828-4-0x0000000074690000-0x0000000074815000-memory.dmp

Filesize
1.5MB

Download
memory/2828-3-0x00000000747BD000-0x00000000747BE000-memory.dmp

Filesize
4KB

Download
memory/2872-5-0x0000000074690000-0x0000000074815000-memory.dmp

Filesize
1.5MB

Download
memory/2872-11-0x0000000074690000-0x0000000074815000-memory.dmp

Filesize
1.5MB

Download

Analysis

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