52dece7135f055e2637f4b9591763965a329287a453de3fab07f8acba175f344

Analysis

max time kernel
115s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
28/02/2024, 13:52

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General

Target
ac09a0b8db841385f7f7bbfc5e92662c.dll
Size 597KB
Sample240228-q6dkksdb53
SHA256 52dece7135f055e2637f4b9591763965a329287a453de3fab07f8acba175f344
MD5 ac09a0b8db841385f7f7bbfc5e92662c
SHA1 7b725cfef7fbe39dded10e1d6b9ac582cdfee49b
SHA512 60a6ea4bb350969b74a80ab460318cb5671656666d984a7c888c3c3d77faf6f44811112f04e2f837eda47093a827b1a1fd6d0f23178626382ea1086eb47ab867
SSDEEP 12288:kup3hFonIVGf3Cp4QOfZ2rK888888888888W888888888884MYeW1meyUGpC24bq:LJ0nIoy0fZ+lMYeW1HGobYtP
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\{7AFD00B9-30B5-43A5-B3D6-E42849B6016B}	regsvr32.exe

Modifies registry class 14 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7AFD00B9-30B5-43A5-B3D6-E42849B6016B}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7AFD00B9-30B5-43A5-B3D6-E42849B6016B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7AFD00B9-30B5-43A5-B3D6-E42849B6016B}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ac09a0b8db841385f7f7bbfc5e92662c.AAAAA\ = "CCCCCCC"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7AFD00B9-30B5-43A5-B3D6-E42849B6016B}\ = "CCCCCCC"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ac09a0b8db841385f7f7bbfc5e92662c.AAAAA\Clsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ac09a0b8db841385f7f7bbfc5e92662c.AAAAA\Clsid\ = "{7AFD00B9-30B5-43A5-B3D6-E42849B6016B}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7AFD00B9-30B5-43A5-B3D6-E42849B6016B}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.key	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ac09a0b8db841385f7f7bbfc5e92662c.AAAAA	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7AFD00B9-30B5-43A5-B3D6-E42849B6016B}\ProgID\ = "ac09a0b8db841385f7f7bbfc5e92662c.AAAAA"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7AFD00B9-30B5-43A5-B3D6-E42849B6016B}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ac09a0b8db841385f7f7bbfc5e92662c.dll"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4584 wrote to memory of 3916	4584	regsvr32.exe	94
PID 4584 wrote to memory of 3916	4584	regsvr32.exe	94
PID 4584 wrote to memory of 3916	4584	regsvr32.exe	94

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\ac09a0b8db841385f7f7bbfc5e92662c.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4584
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\ac09a0b8db841385f7f7bbfc5e92662c.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:3916

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 --mojo-platform-channel-handle=1292 --field-trial-handle=2588,i,4353937220825226770,7138584070663735671,262144 --variations-seed-version /prefetch:8
1⤵
PID:3744

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/3916-0-0x000000003BAF0000-0x000000003BC59000-memory.dmp

Download

memory/3916-1-0x0000000002F40000-0x0000000002F42000-memory.dmp