930637d070ef2c085dee39591e9ef6f61b0bf92c0c8d851dfa5ea33e03462cba

General

Target

433dec19a3092cad1d9ab9f22fede0aa_JaffaCakes118.exe
Size

64KB
MD5

433dec19a3092cad1d9ab9f22fede0aa
SHA1

22987372b4e3e0dd82490430e74c23669c719731
SHA256

930637d070ef2c085dee39591e9ef6f61b0bf92c0c8d851dfa5ea33e03462cba
SHA512

b4191510de2c44923ab5881d78da9a595732ca3d7e7b25b561d035b24569dbe8629d91f1a1ede43fb58b749a2619940efa09dd83aebbb34f4147ba7973c48552
SSDEEP

1536:mwtp3nq8LXk/4g2fOG9HDvSvICqBMvA94DK4tbwgvX:D3lYIOyjKvIvBstDHVwA

Score

7^/10

discovery persistence upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x00080000000174b4-6.dat	acprotect

Loads dropped DLL 5 IoCs

pid	Process
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe

Modifies WinLogon 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\SfcDisable = "4294967197"	rundll32.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\myAddr.dat	433dec19a3092cad1d9ab9f22fede0aa_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\doansm.log	433dec19a3092cad1d9ab9f22fede0aa_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\22283.dll	433dec19a3092cad1d9ab9f22fede0aa_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\sfc_my.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\sfc_my.dll	rundll32.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1728-0-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral1/memory/1728-5-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral1/files/0x00080000000174b4-6.dat	upx
behavioral1/memory/1892-12-0x0000000010000000-0x0000000010104000-memory.dmp	upx
behavioral1/memory/1892-13-0x0000000010000000-0x0000000010104000-memory.dmp	upx

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2348	1892	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 3 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	sfc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	433dec19a3092cad1d9ab9f22fede0aa_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1728 wrote to memory of 1892	1728	433dec19a3092cad1d9ab9f22fede0aa_JaffaCakes118.exe	30
PID 1728 wrote to memory of 1892	1728	433dec19a3092cad1d9ab9f22fede0aa_JaffaCakes118.exe	30
PID 1728 wrote to memory of 1892	1728	433dec19a3092cad1d9ab9f22fede0aa_JaffaCakes118.exe	30
PID 1728 wrote to memory of 1892	1728	433dec19a3092cad1d9ab9f22fede0aa_JaffaCakes118.exe	30
PID 1728 wrote to memory of 1892	1728	433dec19a3092cad1d9ab9f22fede0aa_JaffaCakes118.exe	30
PID 1728 wrote to memory of 1892	1728	433dec19a3092cad1d9ab9f22fede0aa_JaffaCakes118.exe	30
PID 1728 wrote to memory of 1892	1728	433dec19a3092cad1d9ab9f22fede0aa_JaffaCakes118.exe	30
PID 1892 wrote to memory of 2484	1892	rundll32.exe	31
PID 1892 wrote to memory of 2484	1892	rundll32.exe	31
PID 1892 wrote to memory of 2484	1892	rundll32.exe	31
PID 1892 wrote to memory of 2484	1892	rundll32.exe	31
PID 1892 wrote to memory of 2348	1892	rundll32.exe	33
PID 1892 wrote to memory of 2348	1892	rundll32.exe	33
PID 1892 wrote to memory of 2348	1892	rundll32.exe	33
PID 1892 wrote to memory of 2348	1892	rundll32.exe	33

C:\Users\Admin\AppData\Local\Temp\433dec19a3092cad1d9ab9f22fede0aa_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\433dec19a3092cad1d9ab9f22fede0aa_JaffaCakes118.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1728
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\system32\rundll32.exe" 22283.dll,myImeInit C:\Users\Admin\AppData\Local\Temp\433dec19a3092cad1d9ab9f22fede0aa_JaffaCakes118.exe
  2⤵
  - Loads dropped DLL
  - Modifies WinLogon
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1892
- - C:\Windows\SysWOW64\sfc.exe
    "C:\Windows\system32\sfc.exe" /REVERT
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2484
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1892 -s 352
    3⤵
    - Program crash
    PID:2348

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

1

T1112

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

C:\Windows\SysWOW64\22283.dll

Filesize
22KB

MD5
4970fabaacf313ba47c69a80ed15fe71

SHA1
512ab4d130e25e2659032c582028c3f5b0d31aef

SHA256
d88831cde6c76c62e4519db584f73274f8d6cd9e4ab2312734603cd5d8e89c96

SHA512
b8f061c2368f8861298048f35ec53d868b2d4f104a9b482b7bc64c9803b0d22eff284c993c96fd0f107930e214026676acccfae0863e0270a83480ce88024901

Download Submit
\Windows\SysWOW64\sfc_my.dll

Filesize
40KB

MD5
84799328d87b3091a3bdd251e1ad31f9

SHA1
64dbbe8210049f4d762de22525a7fe4313bf99d0

SHA256
f85521215924388830dbb13580688db70b46af4c7d82d549d09086438f8d237b

SHA512
0a9401c9c687f0edca01258c7920596408934caa21e5392dbaefc222c5c021255a40ec7c114a805cdb7f5a6153ec9fa9592edcc9e45406ce5612aa4e3da6a2c4

Download Submit
memory/1728-0-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1728-5-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1892-11-0x0000000010000000-0x0000000010104000-memory.dmp

Filesize
1.0MB

Download
memory/1892-12-0x0000000010000000-0x0000000010104000-memory.dmp

Filesize
1.0MB

Download
memory/1892-13-0x0000000010000000-0x0000000010104000-memory.dmp

Filesize
1.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads