77368aa36ee6f9a024aaeaa7bcb5d2fba81a9ccd9927a2388ef4082570715b0b

Analysis

max time kernel
124s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
11/08/2024, 08:58

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General

Target
89c1e778d9e34d1f45f97b166f66b71a_JaffaCakes118.dll
Size 520KB
Sample240811-kw6wgsshjq
SHA256 77368aa36ee6f9a024aaeaa7bcb5d2fba81a9ccd9927a2388ef4082570715b0b
MD5 89c1e778d9e34d1f45f97b166f66b71a
SHA1 04bf5272dff5fba921d9b965ee5f7a06fe5eb4fe
SHA512 0e3b8f44e257138cdf3f66b0d6a15f649d04d96940dcf75d4a9cf2a6e52f25ffd7147f7916a1b3ac2e2f63ed29bdc91a469bda6af9a6c263be1f386b18757122
SSDEEP 384:ppdNjtU2O+9tIpYOruyQD5ol4rZpTMFsadh3KBuzbv1228SS:ppdHzC+D5o21GNh3Fbv12fP
MD5 SHA1 SHA512 SSDEEP

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\{29109876-7619-9101-7012-901938475192}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{29109876-7619-9101-7012-901938475192}\ = "ietzbpaq.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\CLSID	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{29109876-7619-9101-7012-901938475192}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{29109876-7619-9101-7012-901938475192}\InprocServer32\ = "C:\\Windows\\SysWow64\\ietzbpaq.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{29109876-7619-9101-7012-901938475192}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{29109876-7619-9101-7012-901938475192}\InprocServer32	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4500	rundll32.exe
4500	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4920 wrote to memory of 4500	4920	rundll32.exe	91
PID 4920 wrote to memory of 4500	4920	rundll32.exe	91
PID 4920 wrote to memory of 4500	4920	rundll32.exe	91
PID 4500 wrote to memory of 4824	4500	rundll32.exe	92
PID 4500 wrote to memory of 4824	4500	rundll32.exe	92
PID 4500 wrote to memory of 4824	4500	rundll32.exe	92

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\89c1e778d9e34d1f45f97b166f66b71a_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4920
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\89c1e778d9e34d1f45f97b166f66b71a_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 WriteProcessMemory
  PID:4500
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\~DFD240658625.bat
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4824

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4152,i,8548254608087149642,10333768245962368401,262144 --variations-seed-version --mojo-platform-channel-handle=4308 /prefetch:8
1⤵
PID:1492

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

T1176

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

~DFD240658625.bat

Path C:\Users\Admin\AppData\Local\Temp\~DFD240658625.bat
Size 121B
SHA256 6cc6bbb1f3f754b6894d84130f5f2d86569ac3a603e1632d3cefa028f22b6238
MD5 09517fc62284f33e877a276463580bd1
SHA1 0b14fe1db4493818f9de0bf2a56ee5370b8d479a
SHA512 1b924dd216d0f38199cc6df215e65ff260aa48fa37aa620dabcbc616f434643bd1f2e617d66b14bd52900214148741565128ba9589782ba582fd7308369f4a4d
MD5 SHA1 SHA512

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