aedeacbbdc4e91c402a543aaf332ba2010e83eb6f3f875b22639931512b739df

Analysis

max time kernel
92s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
09/04/2024, 08:25

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General

Target
e990825095ff2d676607857955a3616c_JaffaCakes118.dll
Size 9KB
Sample240409-kbmbcadh2t
SHA256 aedeacbbdc4e91c402a543aaf332ba2010e83eb6f3f875b22639931512b739df
MD5 e990825095ff2d676607857955a3616c
SHA1 15ee0dde0003ea97df6f89a2adb94620a5dfcd18
SHA512 4c1e6c5b79a88a5494f0a32dabc80539ebe4c42b9cf1654ca555f42b01518719a8a5e54afc2922aad565f32bc9b9ce9a09332a4285ddac1f8152984ab9fe0dd5
SSDEEP 192:SvxHsilWssWt+rK5Dr7By9NoLxBGNLgxj:1ilRsq5nNy9KLaNA
MD5 SHA1 SHA512 SSDEEP

Score

6^/10

adware stealer

Malware Config

Signatures

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\{da9770d3-26fa-4942-8b45-9333ad52ca13}	regsvr32.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\gupr.dll	regsvr32.exe
File created	C:\Windows\SysWOW64\gupr.dll	regsvr32.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{da9770d3-26fa-4942-8b45-9333ad52ca13}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{da9770d3-26fa-4942-8b45-9333ad52ca13}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{da9770d3-26fa-4942-8b45-9333ad52ca13}\InprocServer32\ = "C:\\Windows\\SysWow64\\gupr.dll"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2548 wrote to memory of 1800	2548	regsvr32.exe	86
PID 2548 wrote to memory of 1800	2548	regsvr32.exe	86
PID 2548 wrote to memory of 1800	2548	regsvr32.exe	86

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\e990825095ff2d676607857955a3616c_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2548
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\e990825095ff2d676607857955a3616c_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Drops file in System32 directory
  - Modifies registry class
  PID:1800

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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