a01933a31cbb8aeaca033d9506cb596f80040f94764ff93ad25bc0bf2d933d29

Analysis

max time kernel
120s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
10-07-2024 03:46

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General

Target

332ee4c6830cdedf0b4bbdc3ddf78224_JaffaCakes118.dll
Size

232KB
MD5

332ee4c6830cdedf0b4bbdc3ddf78224
SHA1

a0fb4d43a1e9d18945b984c1fa833f2a4d87ab7e
SHA256

a01933a31cbb8aeaca033d9506cb596f80040f94764ff93ad25bc0bf2d933d29
SHA512

e2e83dc1a465114c2b1a760602ac7ce602a7fb629ac32b81e071ae28a3019c96a5b0f17a605ef033b8eb02f9386d49384c4f2aa94351f6fb24c4afde738088cd
SSDEEP

6144:Sa7NkzWuqz8IwwQF1wG2RVMKjRjShbDiItnIaXFzNGCf:vNkzpqYIkF192zMeGhPiI1Ia1zwC

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/3012-0-0x0000000002240000-0x00000000022E2000-memory.dmp	upx
behavioral2/memory/3012-1-0x0000000002240000-0x00000000022E2000-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-1763-2A1A-6ABA-BC19C78B17A2}	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-1763-2A1A-6ABA-BC19C78B17A2}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\332ee4c6830cdedf0b4bbdc3ddf78224_JaffaCakes118.ytn\ = "ytn"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\332ee4c6830cdedf0b4bbdc3ddf78224_JaffaCakes118.ytn\Clsid\ = "{CC01FC6C-1763-2A1A-6ABA-BC19C78B17A2}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-1763-2A1A-6ABA-BC19C78B17A2}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-1763-2A1A-6ABA-BC19C78B17A2}\ = "ytn"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-1763-2A1A-6ABA-BC19C78B17A2}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\332ee4c6830cdedf0b4bbdc3ddf78224_JaffaCakes118.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-1763-2A1A-6ABA-BC19C78B17A2}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-1763-2A1A-6ABA-BC19C78B17A2}\ProgID\ = "332ee4c6830cdedf0b4bbdc3ddf78224_JaffaCakes118.ytn"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-1763-2A1A-6ABA-BC19C78B17A2}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\332ee4c6830cdedf0b4bbdc3ddf78224_JaffaCakes118.ytn	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\332ee4c6830cdedf0b4bbdc3ddf78224_JaffaCakes118.ytn\Clsid	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4036 wrote to memory of 3012	4036	regsvr32.exe	82
PID 4036 wrote to memory of 3012	4036	regsvr32.exe	82
PID 4036 wrote to memory of 3012	4036	regsvr32.exe	82

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\332ee4c6830cdedf0b4bbdc3ddf78224_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4036
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\332ee4c6830cdedf0b4bbdc3ddf78224_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:3012

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/3012-0-0x0000000002240000-0x00000000022E2000-memory.dmp

Filesize
648KB

Download
memory/3012-1-0x0000000002240000-0x00000000022E2000-memory.dmp

Filesize
648KB

Download