21d4ee5f517fa16a00100ca62157aea4bef15b5aa303905280625f5aec7cd573

Analysis

max time kernel
146s
max time network
173s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
10/03/2024, 08:29

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General

Target

be229d6cb0613be8a337b7e48273f9c0.dll
Size

17KB
MD5

be229d6cb0613be8a337b7e48273f9c0
SHA1

d816a26a514054f89b27bec59fa6eb3431f68011
SHA256

21d4ee5f517fa16a00100ca62157aea4bef15b5aa303905280625f5aec7cd573
SHA512

a0feab8a0025219d268fef86c44f60db1b7ada8d4c0468e8339fafea842112140d892de171077bba307ce71bae7278a1d085d3646899e16a92f178a1d267f932
SSDEEP

192:HNQxnZXZqLOucxbYPO8lE5U7vEIGyvHr0AneHujzUm2xXozNZwmsVkYDAoCRG/3+:tYhZqiuLq5KvNHvnQxYZZwkYrAa3e

Score

6^/10

adware stealer

Malware Config

Signatures

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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{F10587E9-0E47-4CBE-84AE-7DD20B8684BB}\ = "cj helper"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{F10587E9-0E47-4CBE-84AE-7DD20B8684BB}	regsvr32.exe

Modifies registry class 46 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CJ.cjmgr\CurVer\ = "CJ.cjmgr.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F10587E9-0E47-4CBE-84AE-7DD20B8684BB}\ = "cjmgr Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E63648F7-3933-440E-B4F6-A8584DD7B7EB}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\be229d6cb0613be8a337b7e48273f9c0.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E63648F7-3933-440E-B4F6-A8584DD7B7EB}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CJ.cjmgr.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CJ.cjmgr\ = "cjmgr Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F10587E9-0E47-4CBE-84AE-7DD20B8684BB}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F10587E9-0E47-4CBE-84AE-7DD20B8684BB}\VersionIndependentProgID\ = "CJ.cjmgr"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F10587E9-0E47-4CBE-84AE-7DD20B8684BB}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F10587E9-0E47-4CBE-84AE-7DD20B8684BB}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\be229d6cb0613be8a337b7e48273f9c0.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E63648F7-3933-440E-B4F6-A8584DD7B7EB}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F7D09218-46D7-4D3D-9B7F-315204CD0836}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F7D09218-46D7-4D3D-9B7F-315204CD0836}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CJ.cjmgr.1\CLSID\ = "{F10587E9-0E47-4CBE-84AE-7DD20B8684BB}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E63648F7-3933-440E-B4F6-A8584DD7B7EB}\1.0\ = "cj 1.0 Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E63648F7-3933-440E-B4F6-A8584DD7B7EB}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E63648F7-3933-440E-B4F6-A8584DD7B7EB}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F7D09218-46D7-4D3D-9B7F-315204CD0836}\TypeLib\ = "{E63648F7-3933-440E-B4F6-A8584DD7B7EB}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F7D09218-46D7-4D3D-9B7F-315204CD0836}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F7D09218-46D7-4D3D-9B7F-315204CD0836}\TypeLib\ = "{E63648F7-3933-440E-B4F6-A8584DD7B7EB}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F10587E9-0E47-4CBE-84AE-7DD20B8684BB}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E63648F7-3933-440E-B4F6-A8584DD7B7EB}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F7D09218-46D7-4D3D-9B7F-315204CD0836}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F7D09218-46D7-4D3D-9B7F-315204CD0836}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F10587E9-0E47-4CBE-84AE-7DD20B8684BB}\ProgID\ = "CJ.cjmgr.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F10587E9-0E47-4CBE-84AE-7DD20B8684BB}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E63648F7-3933-440E-B4F6-A8584DD7B7EB}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F7D09218-46D7-4D3D-9B7F-315204CD0836}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F7D09218-46D7-4D3D-9B7F-315204CD0836}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CJ.cjmgr.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CJ.cjmgr	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CJ.cjmgr\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E63648F7-3933-440E-B4F6-A8584DD7B7EB}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E63648F7-3933-440E-B4F6-A8584DD7B7EB}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F7D09218-46D7-4D3D-9B7F-315204CD0836}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F7D09218-46D7-4D3D-9B7F-315204CD0836}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CJ.cjmgr\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F10587E9-0E47-4CBE-84AE-7DD20B8684BB}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F10587E9-0E47-4CBE-84AE-7DD20B8684BB}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F10587E9-0E47-4CBE-84AE-7DD20B8684BB}\TypeLib\ = "{E63648F7-3933-440E-B4F6-A8584DD7B7EB}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F7D09218-46D7-4D3D-9B7F-315204CD0836}\ = "Icjmgr"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F7D09218-46D7-4D3D-9B7F-315204CD0836}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CJ.cjmgr.1\ = "cjmgr Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CJ.cjmgr\CLSID\ = "{F10587E9-0E47-4CBE-84AE-7DD20B8684BB}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F10587E9-0E47-4CBE-84AE-7DD20B8684BB}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F7D09218-46D7-4D3D-9B7F-315204CD0836}\ = "Icjmgr"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 840 wrote to memory of 1988	840	regsvr32.exe	95
PID 840 wrote to memory of 1988	840	regsvr32.exe	95
PID 840 wrote to memory of 1988	840	regsvr32.exe	95

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\be229d6cb0613be8a337b7e48273f9c0.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:840
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\be229d6cb0613be8a337b7e48273f9c0.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:1988

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=3764 --field-trial-handle=3084,i,14217130992253490921,11543335378077656547,262144 --variations-seed-version /prefetch:8
1⤵
PID:4684

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/1988-0-0x0000000010000000-0x000000001000D000-memory.dmp

Filesize
52KB

Download
memory/1988-1-0x0000000000B50000-0x0000000000B51000-memory.dmp

Filesize
4KB

Download