172f5cba1fff5b78474b1f05d09a067832fd5347d7983bb94b5ae31c02d1f194

Analysis

max time kernel
147s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
20-06-2024 12:27

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General

Target

05fab06d04fd558171b762e8de8f22db_JaffaCakes118.dll
Size

494KB
MD5

05fab06d04fd558171b762e8de8f22db
SHA1

6419fa5f0e10f1a6807a235f54ff9ca95e8055bb
SHA256

172f5cba1fff5b78474b1f05d09a067832fd5347d7983bb94b5ae31c02d1f194
SHA512

c450636af7eda4c949223292fce1d9c0dddcc71227f20b429775e597f58f630e2a1d661e4e90fc6398223369a78884b2301b45c5ff70bbadeaf36b29023fb3df
SSDEEP

12288:7eNKWig40Yq4awMBJyh6H1X6BHLfOU0HrAW4Hojk:kKWvAjawM3HR+LiHrsHOk

Score

7^/10

adware stealer upx

Malware Config

Signatures

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3596-0-0x0000000000400000-0x000000000054E000-memory.dmp	upx

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\{99D4AFE9-63C8-46E4-A71D-A6CFD6812F84}	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{99D4AFE9-63C8-46E4-A71D-A6CFD6812F84}\NoExplorer = "1"	regsvr32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{99D4AFE9-63C8-46E4-A71D-A6CFD6812F84}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{99D4AFE9-63C8-46E4-A71D-A6CFD6812F84}\ = "onestep"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{99D4AFE9-63C8-46E4-A71D-A6CFD6812F84}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{99D4AFE9-63C8-46E4-A71D-A6CFD6812F84}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\05fab06d04fd558171b762e8de8f22db_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{99D4AFE9-63C8-46E4-A71D-A6CFD6812F84}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2288 wrote to memory of 3596	2288	regsvr32.exe	82
PID 2288 wrote to memory of 3596	2288	regsvr32.exe	82
PID 2288 wrote to memory of 3596	2288	regsvr32.exe	82

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\05fab06d04fd558171b762e8de8f22db_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2288
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\05fab06d04fd558171b762e8de8f22db_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:3596

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

Replay Monitor

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Downloads

memory/3596-0-0x0000000000400000-0x000000000054E000-memory.dmp

Filesize
1.3MB

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