a52a9e8735a2d7a9b99149de9b88978c46f349a82f5106bddf98f0d958315cbc

Analysis

max time kernel
146s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240319-en
resource tags

arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system
submitted
08/04/2024, 22:42

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General

Target
e897ecc941b55eb40e4ad97ec056a735_JaffaCakes118.dll
Size 270KB
Sample240408-2mvwasdh86
SHA256 a52a9e8735a2d7a9b99149de9b88978c46f349a82f5106bddf98f0d958315cbc
MD5 e897ecc941b55eb40e4ad97ec056a735
SHA1 b82eed352430f1a2311b23f7474e1cf33caa855d
SHA512 9d05836fc97cbe0d7232759dd5e3a42ba35007d6cbb7ce6436703b28b79e074b94e96e95cb5d68f10699785242557a874d065b85caf7dbb87b6f198a45293f36
SSDEEP 6144:SUPy38LUwQ7/YHYrPNCva0UDfl/LUFDZSbD2owPdpTAD:SUPy38QwQkHYrPB+xYbDtqrS
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

adware stealer upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1452-0-0x0000000000B50000-0x0000000000C01000-memory.dmp	upx
behavioral2/memory/1452-1-0x0000000000B50000-0x0000000000C01000-memory.dmp	upx

Installs/modifies Browser Helper Object 2 TTPs 1 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\{CC01FC6C-4445-4614-161D-74B8EB6D485A}	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-4445-4614-161D-74B8EB6D485A}\ = "sb"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-4445-4614-161D-74B8EB6D485A}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-4445-4614-161D-74B8EB6D485A}\ProgID\ = "e897ecc941b55eb40e4ad97ec056a735_JaffaCakes118.sb"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\e897ecc941b55eb40e4ad97ec056a735_JaffaCakes118.sb\ = "sb"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\e897ecc941b55eb40e4ad97ec056a735_JaffaCakes118.sb\Clsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\e897ecc941b55eb40e4ad97ec056a735_JaffaCakes118.sb\Clsid\ = "{CC01FC6C-4445-4614-161D-74B8EB6D485A}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-4445-4614-161D-74B8EB6D485A}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-4445-4614-161D-74B8EB6D485A}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-4445-4614-161D-74B8EB6D485A}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\e897ecc941b55eb40e4ad97ec056a735_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-4445-4614-161D-74B8EB6D485A}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\e897ecc941b55eb40e4ad97ec056a735_JaffaCakes118.sb	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2300 wrote to memory of 1452	2300	regsvr32.exe	94
PID 2300 wrote to memory of 1452	2300	regsvr32.exe	94
PID 2300 wrote to memory of 1452	2300	regsvr32.exe	94

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\e897ecc941b55eb40e4ad97ec056a735_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2300
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\e897ecc941b55eb40e4ad97ec056a735_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:1452

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 --no-appcompat-clear --mojo-platform-channel-handle=3752 --field-trial-handle=2232,i,3915538061666887171,15629965885515244134,262144 --variations-seed-version /prefetch:8
1⤵
PID:4616

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1452-0-0x0000000000B50000-0x0000000000C01000-memory.dmp

Download

memory/1452-1-0x0000000000B50000-0x0000000000C01000-memory.dmp