b1aea8f5ec8704f29adb1a48007fb756647abfb501bc775b12cc35b87814eb9b

Analysis

max time kernel
137s
max time network
145s
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, 21:44

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General

Target

b52977aa5133325e2ba67826fddee9c4_JaffaCakes118.dll
Size

22KB
MD5

b52977aa5133325e2ba67826fddee9c4
SHA1

63f9384cd15e50ec35892ecef1166fa68e2edfb2
SHA256

b1aea8f5ec8704f29adb1a48007fb756647abfb501bc775b12cc35b87814eb9b
SHA512

17765cc660a5c1c45c00400d83819d8cc2126ddcb617eaf13ba484abfaaf71b7304ed8f6daec642fb433d55b8db48c341d890789f4d6171e4f7cfb90323fdef1
SSDEEP

384:7suEaJKet7tjJR4K0nMHWCDlFaAiyE0hlvOuvzY20:Q2J1LiK0nM/SEmu82

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/3128-0-0x0000000000400000-0x0000000000420000-memory.dmp	upx
behavioral2/memory/3128-13-0x0000000000400000-0x0000000000420000-memory.dmp	upx

Launches sc.exe 4 IoCs

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

pid	Process
2520	sc.exe
3076	sc.exe
2876	sc.exe
1824	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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.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
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe
3128	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3128	rundll32.exe
Token: SeAuditPrivilege	4056	svchost.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1632 wrote to memory of 3128	1632	rundll32.exe	84
PID 1632 wrote to memory of 3128	1632	rundll32.exe	84
PID 1632 wrote to memory of 3128	1632	rundll32.exe	84
PID 3128 wrote to memory of 1152	3128	rundll32.exe	85
PID 3128 wrote to memory of 1152	3128	rundll32.exe	85
PID 3128 wrote to memory of 1152	3128	rundll32.exe	85
PID 3128 wrote to memory of 2520	3128	rundll32.exe	88
PID 3128 wrote to memory of 2520	3128	rundll32.exe	88
PID 3128 wrote to memory of 2520	3128	rundll32.exe	88
PID 3128 wrote to memory of 3076	3128	rundll32.exe	91
PID 3128 wrote to memory of 3076	3128	rundll32.exe	91
PID 3128 wrote to memory of 3076	3128	rundll32.exe	91
PID 3128 wrote to memory of 2876	3128	rundll32.exe	94
PID 3128 wrote to memory of 2876	3128	rundll32.exe	94
PID 3128 wrote to memory of 2876	3128	rundll32.exe	94
PID 3128 wrote to memory of 1824	3128	rundll32.exe	97
PID 3128 wrote to memory of 1824	3128	rundll32.exe	97
PID 3128 wrote to memory of 1824	3128	rundll32.exe	97

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b52977aa5133325e2ba67826fddee9c4_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1632
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b52977aa5133325e2ba67826fddee9c4_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:3128
- - C:\Windows\SysWOW64\reg.exe
    C:\Windows\System32\reg.exe import "C:\Users\Admin\rmkr.avi"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1152
- - 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:2520
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\System32\sc.exe stop PolicyAgent
    3⤵
    - Launches sc.exe
    - System Location Discovery: System Language Discovery
    PID:3076
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\System32\sc.exe start PolicyAgent
    3⤵
    - Launches sc.exe
    - System Location Discovery: System Language Discovery
    PID:2876
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\System32\sc.exe stop PolicyAgent
    3⤵
    - Launches sc.exe
    - System Location Discovery: System Language Discovery
    PID:1824

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkServiceNetworkRestricted -p -s PolicyAgent
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4056

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\rmkr.avi

Filesize
56KB

MD5
bc8025bc98da7f4ed891c9f9991d3ff1

SHA1
70a69a7fcebe9b43f00a1fa713e3a0621bf3ac6d

SHA256
59b9dc39d69f8b0aa350f550e42e632b396237865776d0ce75477f8fe3f9016f

SHA512
7f772261e003d2df9162ae4aeaab2bda674ee2721b3300cc8b2a2f4904af6bc9c565c7f2c3e67a7394eb1a387860a2544fc5bdc3e6de384b664f8d232ad6acf5

Download Submit
memory/3128-0-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/3128-13-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download