a3650a61c71c582fdfeb434fd7ae7b78eefcc68a715060a1b27e85de32c27fe4

General

Target

a3650a61c71c582fdfeb434fd7ae7b78eefcc68a715060a1b27e85de32c27fe4.dll
Size

332KB
MD5

a932945fe37d59cc1c1eadbbc081a1f6
SHA1

ae4ac3ac94c8f65d02fe1ad886e13d996c36c79e
SHA256

a3650a61c71c582fdfeb434fd7ae7b78eefcc68a715060a1b27e85de32c27fe4
SHA512

c867e6dc24811607ec94d095e04084068eab0a151d144f13d8ce1165a3654520fd655f8f32c0b1225bbb148731b0f556e739ca1ac7034d78a9952a3507eb4587
SSDEEP

3072:Keu+BWYzeydczWGtwAw7JazSjcU342U6LiBQLHp4sCsluf8p9AmHBHFladZ6fCVb:5rWYldVtcUFGfHmsdZACVzPZbV5+

Score

8^/10

adware persistence stealer

Malware Config

Signatures

Registers COM server for autorun 1 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\WOW6432Node\CLSID\{EFF39A40-C163-4d5d-B073-52FBB55C646A}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\WOW6432Node\CLSID\{EFF39A40-C163-4d5d-B073-52FBB55C646A}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a3650a61c71c582fdfeb434fd7ae7b78eefcc68a715060a1b27e85de32c27fe4.dll"	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\WOW6432Node\CLSID\{EFF39A40-C163-4d5d-B073-52FBB55C646A}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe

Installs/modifies Browser Helper Object 2 TTPs 5 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 (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{EFF39A40-C163-4d5d-B073-52FBB55C646A}\NoExplorer = "1"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{EFF39A40-C163-4d5d-B073-52FBB55C646A}	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{EFF39A40-C163-4d5d-B073-52FBB55C646A}	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{EFF39A40-C163-4d5d-B073-52FBB55C646A}\ = "Adobe PDF Reader Link Helper"	regsvr32.exe

Modifies registry class 23 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\WOW6432Node\CLSID\{EFF39A40-C163-4d5d-B073-52FBB55C646A}\VersionIndependentProgID\ = "linkrdr.AIEbho"	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\linkrdr.AIEbho\ = "Adobe PDF Reader Link Helper"	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\linkrdr.AIEbho.1\ = "Adobe PDF Reader Link Helper"	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\WOW6432Node\CLSID\{EFF39A40-C163-4d5d-B073-52FBB55C646A}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a3650a61c71c582fdfeb434fd7ae7b78eefcc68a715060a1b27e85de32c27fe4.dll"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\WOW6432Node\CLSID\{EFF39A40-C163-4d5d-B073-52FBB55C646A}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\linkrdr.AIEbho.1\CLSID\ = "{EFF39A40-C163-4d5d-B073-52FBB55C646A}"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\linkrdr.AIEbho\CurVer	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\WOW6432Node\CLSID\{EFF39A40-C163-4d5d-B073-52FBB55C646A}	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\WOW6432Node\CLSID\{EFF39A40-C163-4d5d-B073-52FBB55C646A}\AppID = "{74DB2CD7-094B-4d60-9656-ADC2F8830D29}"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\linkrdr.AIEbho.1	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\linkrdr.AIEbho\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\linkrdr.AIEbho\CLSID\ = "{EFF39A40-C163-4d5d-B073-52FBB55C646A}"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\linkrdr.AIEbho.1\CLSID	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\WOW6432Node\CLSID\{EFF39A40-C163-4d5d-B073-52FBB55C646A}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\WOW6432Node\CLSID\{EFF39A40-C163-4d5d-B073-52FBB55C646A}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\WOW6432Node\CLSID\{EFF39A40-C163-4d5d-B073-52FBB55C646A}\ProgID\ = "linkrdr.AIEbho.1"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\linkrdr.AIEbho	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\WOW6432Node\CLSID\{EFF39A40-C163-4d5d-B073-52FBB55C646A}\TypeLib\ = "{2B63B21A-4075-4298-A569-D8113F1D7045}"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\WOW6432Node\CLSID\{EFF39A40-C163-4d5d-B073-52FBB55C646A}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\linkrdr.AIEbho\CurVer\ = "linkrdr.AIEbho.1"	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\WOW6432Node\CLSID\{EFF39A40-C163-4d5d-B073-52FBB55C646A}\ = "Adobe PDF Reader Link Helper"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\WOW6432Node\CLSID\{EFF39A40-C163-4d5d-B073-52FBB55C646A}\ProgID	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\WOW6432Node\CLSID\{EFF39A40-C163-4d5d-B073-52FBB55C646A}\Programmable	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3196 wrote to memory of 456	3196	regsvr32.exe	52
PID 3196 wrote to memory of 456	3196	regsvr32.exe	52
PID 3196 wrote to memory of 456	3196	regsvr32.exe	52

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\a3650a61c71c582fdfeb434fd7ae7b78eefcc68a715060a1b27e85de32c27fe4.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3196
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\a3650a61c71c582fdfeb434fd7ae7b78eefcc68a715060a1b27e85de32c27fe4.dll
  2⤵
  - Registers COM server for autorun
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:456

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Browser Extensions

1

T1176

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads