e75d9a23cd2be2e876de6db28ccd023ce6c07dfc102060a0fafe976e4a20649d

Analysis

max time kernel
122s
max time network
155s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
28/12/2023, 20:26

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General

Target

f5d23ff488b012f14068ebcad572f50d.dll
Size

224KB
MD5

f5d23ff488b012f14068ebcad572f50d
SHA1

840f5203133e67bb1f5b63959f50dff10afa9093
SHA256

e75d9a23cd2be2e876de6db28ccd023ce6c07dfc102060a0fafe976e4a20649d
SHA512

b06c8537e73f97c00015b900bc40e0a14268518caa50a0979061b9d7ef5fb31cfe84fadda9e55209a0ab641b70320bf9ebbda5350bf96b820fa0460a82840eb0
SSDEEP

6144:Wwx/C2G6SDG6dphYB365sryrXlsnlHpX:WwHG6SD/ac5sruXelH

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
behavioral1/memory/2504-0-0x00000000002D0000-0x0000000000368000-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-3EAE-38B6-7265-B4C4D72CD413}	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-3EAE-38B6-7265-B4C4D72CD413}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-3EAE-38B6-7265-B4C4D72CD413}\ = "sb"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-3EAE-38B6-7265-B4C4D72CD413}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-3EAE-38B6-7265-B4C4D72CD413}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f5d23ff488b012f14068ebcad572f50d.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-3EAE-38B6-7265-B4C4D72CD413}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\f5d23ff488b012f14068ebcad572f50d.sb	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\f5d23ff488b012f14068ebcad572f50d.sb\ = "sb"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\f5d23ff488b012f14068ebcad572f50d.sb\Clsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\f5d23ff488b012f14068ebcad572f50d.sb\Clsid\ = "{CC01FC6C-3EAE-38B6-7265-B4C4D72CD413}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-3EAE-38B6-7265-B4C4D72CD413}\ProgID\ = "f5d23ff488b012f14068ebcad572f50d.sb"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-3EAE-38B6-7265-B4C4D72CD413}\ProgID	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2716 wrote to memory of 2504	2716	regsvr32.exe	28
PID 2716 wrote to memory of 2504	2716	regsvr32.exe	28
PID 2716 wrote to memory of 2504	2716	regsvr32.exe	28
PID 2716 wrote to memory of 2504	2716	regsvr32.exe	28
PID 2716 wrote to memory of 2504	2716	regsvr32.exe	28
PID 2716 wrote to memory of 2504	2716	regsvr32.exe	28
PID 2716 wrote to memory of 2504	2716	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\f5d23ff488b012f14068ebcad572f50d.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2716
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\f5d23ff488b012f14068ebcad572f50d.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:2504

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/2504-0-0x00000000002D0000-0x0000000000368000-memory.dmp

Filesize
608KB

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