67395b3c39b8630e810e16c6ae65496d2be6a5f6d0b1793c0bb0466fefc294d2

General

Target

e22c69942658c0d8f4a2c6341017954a_JaffaCakes118.dll
Size

523KB
MD5

e22c69942658c0d8f4a2c6341017954a
SHA1

352731a7a7419c27adc3f2816039ee620d430735
SHA256

67395b3c39b8630e810e16c6ae65496d2be6a5f6d0b1793c0bb0466fefc294d2
SHA512

603c580df35d297aa15144d17a537dba4668626ea9e6ccd9c77b124c620b326c7fddfb02ea392e4eb4512eddd8b323ef1340d29ce9ab87fff16b8c2a65d85aaf
SSDEEP

384:UyVlNjtU2eF8ZZHJTEi6CJyltEWBfYFF4CCnbTrAzyq+14kLO:JVlzHr6sylmMkgcyq2

Score

8^/10

adware discovery persistence privilege_escalation stealer

Malware Config

Signatures

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{3A908760-8000-4000-A000-9000322145A3}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{3A908760-8000-4000-A000-9000322145A3}\ = "akjsckaq.dll"	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\verclsid.exe	rundll32.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3A908760-8000-4000-A000-9000322145A3}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3A908760-8000-4000-A000-9000322145A3}\InprocServer32\ = "C:\\Windows\\SysWow64\\akjsckaq.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3A908760-8000-4000-A000-9000322145A3}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3A908760-8000-4000-A000-9000322145A3}\InprocServer32	rundll32.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2528	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2528	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2972 wrote to memory of 2528	2972	rundll32.exe	30
PID 2972 wrote to memory of 2528	2972	rundll32.exe	30
PID 2972 wrote to memory of 2528	2972	rundll32.exe	30
PID 2972 wrote to memory of 2528	2972	rundll32.exe	30
PID 2972 wrote to memory of 2528	2972	rundll32.exe	30
PID 2972 wrote to memory of 2528	2972	rundll32.exe	30
PID 2972 wrote to memory of 2528	2972	rundll32.exe	30
PID 2528 wrote to memory of 2368	2528	rundll32.exe	31
PID 2528 wrote to memory of 2368	2528	rundll32.exe	31
PID 2528 wrote to memory of 2368	2528	rundll32.exe	31
PID 2528 wrote to memory of 2368	2528	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e22c69942658c0d8f4a2c6341017954a_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2972
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\e22c69942658c0d8f4a2c6341017954a_JaffaCakes118.dll,#1
  2⤵
  - Installs/modifies Browser Helper Object
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2528
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\~DFD259434795.bat
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2368

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

1

T1176

Event Triggered Execution

1

T1546

AppInit DLLs

1

T1546.010

Privilege Escalation

Event Triggered Execution

1

T1546

AppInit DLLs

1

T1546.010

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\~DFD259434795.bat

Filesize
121B

MD5
09517fc62284f33e877a276463580bd1

SHA1
0b14fe1db4493818f9de0bf2a56ee5370b8d479a

SHA256
6cc6bbb1f3f754b6894d84130f5f2d86569ac3a603e1632d3cefa028f22b6238

SHA512
1b924dd216d0f38199cc6df215e65ff260aa48fa37aa620dabcbc616f434643bd1f2e617d66b14bd52900214148741565128ba9589782ba582fd7308369f4a4d

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