4b9c61fa848816cfbce8f37df123cef7d797f90a9611fb3a973f389a6c46964e

General

Target
0252fca26eb68158d368567026880343_JaffaCakes118.exe
Size 373KB
Sample240622-qh9m4stdnl
SHA256 4b9c61fa848816cfbce8f37df123cef7d797f90a9611fb3a973f389a6c46964e
MD5 0252fca26eb68158d368567026880343
SHA1 e46537ab3bbf1c8cbec5e363002a456e503afe75
SHA512 ed286a83849a46f754a4ce9fe5947e7f5bbdd7d80c0e123d1b4264da27ff227a894d275cc8ffe155d4b8e876fd42cbcca0c4bcfcde99ef94fd830915e07a3fdd
SSDEEP 6144:Tb5kM1JxYidoMWeEaPletfWWSvOhjuwpkoSbe0n/kCry6Ohk4bRdxTjgOCI9D:T5VPorl0kl3qO9fCoSbNn/k+BK+4
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

adware stealer upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000700000002359e-6.dat	acprotect

Loads dropped DLL 2 IoCs

pid	Process
348	0252fca26eb68158d368567026880343_JaffaCakes118.exe
348	0252fca26eb68158d368567026880343_JaffaCakes118.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/348-0-0x0000000000400000-0x00000000004E3000-memory.dmp	upx
behavioral2/files/0x000700000002359e-6.dat	upx
behavioral2/memory/348-13-0x0000000002430000-0x00000000024B7000-memory.dmp	upx
behavioral2/memory/348-15-0x0000000000400000-0x00000000004E3000-memory.dmp	upx

Installs/modifies Browser Helper Object 2 TTPs 4 IoCs

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

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{1FD49718-1D00-4B19-AF5F-070AF6D5D54C}	0252fca26eb68158d368567026880343_JaffaCakes118.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA}	0252fca26eb68158d368567026880343_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{B3CDCA87-9BCA-4756-AF3E-BD7D17C4F69A}	0252fca26eb68158d368567026880343_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects	0252fca26eb68158d368567026880343_JaffaCakes118.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\FG2Catch1.dll	0252fca26eb68158d368567026880343_JaffaCakes118.exe

Modifies registry class 5 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B3CDCA87-9BCA-4756-AF3E-BD7D17C4F69A}\InprocServer32\ = "C:\\Windows\\SysWow64\\FG2Catch1.dll"	0252fca26eb68158d368567026880343_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B3CDCA87-9BCA-4756-AF3E-BD7D17C4F69A}\InprocServer32\ThreadingModel = "Apartment"	0252fca26eb68158d368567026880343_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B3CDCA87-9BCA-4756-AF3E-BD7D17C4F69A}	0252fca26eb68158d368567026880343_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B3CDCA87-9BCA-4756-AF3E-BD7D17C4F69A}\ = "FCatchurl"	0252fca26eb68158d368567026880343_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B3CDCA87-9BCA-4756-AF3E-BD7D17C4F69A}\InprocServer32	0252fca26eb68158d368567026880343_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 348 wrote to memory of 5052	348	0252fca26eb68158d368567026880343_JaffaCakes118.exe	88
PID 348 wrote to memory of 5052	348	0252fca26eb68158d368567026880343_JaffaCakes118.exe	88
PID 348 wrote to memory of 5052	348	0252fca26eb68158d368567026880343_JaffaCakes118.exe	88

C:\Users\Admin\AppData\Local\Temp\0252fca26eb68158d368567026880343_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0252fca26eb68158d368567026880343_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:348
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\_delme.bat
  2⤵
  PID:5052

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 --field-trial-handle=3764,i,13544508926340531097,6671217806016090640,262144 --variations-seed-version --mojo-platform-channel-handle=3800 /prefetch:8
1⤵
PID:676

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

1

T1176

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

_delme.bat

Path C:\Users\Admin\AppData\Local\Temp\_delme.bat
Size 212B
SHA256 e3a4dec6eba3f105f5099151d453851c24cc6e8975e2125d5400ac414fc0ab58
MD5 5b33305666b90e4b9a8b7b834797e8f2
SHA1 79aa6d723af547a2514dcd7d2136ad84ed787c7c
SHA512 f6446d893bc7d63b318782c5b54902bdbde8881ccf5fab800aab60f276c829260e80181dedac8a51c6873350fa022d9286624b39672190755720e6761847c043
MD5 SHA1 SHA512

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FG2Catch1.dll

Path C:\Windows\SysWOW64\FG2Catch1.dll
Size 200KB
SHA256 11add83d3b4a164ad5e51c26902d0a0e015f0f65b4f4f93988939632f706ad8d
MD5 a27846392dc10a7c5c5cde6406236bfe
SHA1 759f5fcb7ec5c617969f55c6a68e8efb506eabd8
SHA512 edaf420a4cd6804d3f424a282bd00df40ef4d15d34700bf0221b94f7e4c6193944295163365cec2e2114009a4f6044fa0962d3b25ee8fc8949a268c4d5ea8f5c
SSDEEP 3072:9rqfajFKu2c/vnfsddwVfNyQUBhk0jui+qdzNQ36T1geVv09pdAk8cEVoutwZLA:Dp/2eryQWhkcbRdVT1gOoBEVoSw
MD5 SHA1 SHA512 SSDEEP

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memory/348-0-0x0000000000400000-0x00000000004E3000-memory.dmp

Download

memory/348-1-0x00000000007B0000-0x00000000007B1000-memory.dmp

Download

memory/348-13-0x0000000002430000-0x00000000024B7000-memory.dmp

Download

memory/348-15-0x0000000000400000-0x00000000004E3000-memory.dmp

Download

memory/348-14-0x0000000002430000-0x00000000024B7000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads