bc371d123606572ce4ca188187794bf583c5f4be4733a7da9fac607cb665d80f

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25/08/2024, 20:29

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General

Target

c183c7966e98f726bb472e20febed366_JaffaCakes118.dll
Size

21KB
MD5

c183c7966e98f726bb472e20febed366
SHA1

159d6fb5bdda86f8966e458fc0eef590eb255125
SHA256

bc371d123606572ce4ca188187794bf583c5f4be4733a7da9fac607cb665d80f
SHA512

2f5e38d03ee2f83f90a6dd7b5d610d4c3c877636ba981286324e116b0c560deab9d931cd07842593bd8b2a8d69433ae58d857a53470c273e8c69d5e62a4d870b
SSDEEP

384:ELWCpCJ6x37z8MxLvLW9GhOEv+fmuhx+VqC0eWPpnwDL9ADemjx5uo:izZhFxLDW9Gc9fmuhxKqCCyL93mP

Score

8^/10

discovery evasion execution upx

Malware Config

Signatures

Stops running service(s) 4 TTPs
evasion execution

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Service Execution
T1569.002

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1900-0-0x0000000000400000-0x000000000041F000-memory.dmp	upx
behavioral2/memory/1900-13-0x0000000000400000-0x000000000041F000-memory.dmp	upx

Launches sc.exe 4 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
4892	sc.exe
456	sc.exe
3568	sc.exe
3952	sc.exe

System Location Discovery: System Language Discovery 1 TTPs 6 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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Checks SCSI registry key(s) 3 TTPs 4 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_WDC&PROD_WDS100T2B0A\4&215468A5&0&000000	rundll32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\HardwareID	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_QEMU&PROD_QEMU_DVD-ROM\4&215468A5&0&010000	rundll32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_QEMU&Prod_QEMU_DVD-ROM\4&215468a5&0&010000\HardwareID	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe
1900	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1900	rundll32.exe
Token: SeAuditPrivilege	4408	svchost.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 5072 wrote to memory of 1900	5072	rundll32.exe	88
PID 5072 wrote to memory of 1900	5072	rundll32.exe	88
PID 5072 wrote to memory of 1900	5072	rundll32.exe	88
PID 1900 wrote to memory of 1252	1900	rundll32.exe	90
PID 1900 wrote to memory of 1252	1900	rundll32.exe	90
PID 1900 wrote to memory of 1252	1900	rundll32.exe	90
PID 1900 wrote to memory of 4892	1900	rundll32.exe	92
PID 1900 wrote to memory of 4892	1900	rundll32.exe	92
PID 1900 wrote to memory of 4892	1900	rundll32.exe	92
PID 1900 wrote to memory of 456	1900	rundll32.exe	94
PID 1900 wrote to memory of 456	1900	rundll32.exe	94
PID 1900 wrote to memory of 456	1900	rundll32.exe	94
PID 1900 wrote to memory of 3568	1900	rundll32.exe	96
PID 1900 wrote to memory of 3568	1900	rundll32.exe	96
PID 1900 wrote to memory of 3568	1900	rundll32.exe	96
PID 1900 wrote to memory of 3952	1900	rundll32.exe	99
PID 1900 wrote to memory of 3952	1900	rundll32.exe	99
PID 1900 wrote to memory of 3952	1900	rundll32.exe	99

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c183c7966e98f726bb472e20febed366_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5072
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\c183c7966e98f726bb472e20febed366_JaffaCakes118.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1900
- - C:\Windows\SysWOW64\reg.exe
    C:\Windows\System32\reg.exe import "C:\Users\Admin\bakj.avi"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1252
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\System32\sc.exe config PolicyAgent start=auto
    3⤵
    - Launches sc.exe
    - System Location Discovery: System Language Discovery
    PID:4892
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\System32\sc.exe stop PolicyAgent
    3⤵
    - Launches sc.exe
    - System Location Discovery: System Language Discovery
    PID:456
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\System32\sc.exe start PolicyAgent
    3⤵
    - Launches sc.exe
    - System Location Discovery: System Language Discovery
    PID:3568
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\System32\sc.exe stop PolicyAgent
    3⤵
    - Launches sc.exe
    - System Location Discovery: System Language Discovery
    PID:3952

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkServiceNetworkRestricted -p -s PolicyAgent
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4408

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

T1489

Replay Monitor

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Downloads

C:\Users\Admin\bakj.avi

Filesize
56KB

MD5
bc8025bc98da7f4ed891c9f9991d3ff1

SHA1
70a69a7fcebe9b43f00a1fa713e3a0621bf3ac6d

SHA256
59b9dc39d69f8b0aa350f550e42e632b396237865776d0ce75477f8fe3f9016f

SHA512
7f772261e003d2df9162ae4aeaab2bda674ee2721b3300cc8b2a2f4904af6bc9c565c7f2c3e67a7394eb1a387860a2544fc5bdc3e6de384b664f8d232ad6acf5

Download Submit
memory/1900-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/1900-13-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download