16e46e1a85f7f4fd6cdd82e7d21c8575032ca805ddab1cbd1e37c090382d4e8e

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
29/12/2023, 18:48

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General

Target

00e8d594cc7042a75f4c17574dab6ca1.dll
Size

157KB
MD5

00e8d594cc7042a75f4c17574dab6ca1
SHA1

dcfe429621fef03b6baa7c9b50f11c1b4c5b1a72
SHA256

16e46e1a85f7f4fd6cdd82e7d21c8575032ca805ddab1cbd1e37c090382d4e8e
SHA512

40c837bf25d5cfcf936e20029c0818b84a496baf084eaa155e9a20b86ee9d495ec2237de41bdb39deed1c6b19c53d51d30f5b70a88decf67125022909eb473fa
SSDEEP

3072:3zE763lRqqZHxSin5Utei73qy7V9gqy4v5vS93:3/pZHcin5+3qyPrd+

Score

6^/10

adware persistence stealer

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\{49c02d21-45b1-7a22-1ded-d6eccf381c1d} = "C:\\Windows\\System32\\Rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\00e8d594cc7042a75f4c17574dab6ca1.dll\" DllStart"	regsvr32.exe

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
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{dbf32e1c-0486-0cfb-c4d5-1d40188e723b}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{dbf32e1c-0486-0cfb-c4d5-1d40188e723b}\NoExplorer = "\"\""	regsvr32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{dbf32e1c-0486-0cfb-c4d5-1d40188e723b}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\00e8d594cc7042a75f4c17574dab6ca1.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{dbf32e1c-0486-0cfb-c4d5-1d40188e723b}\InProcServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{dbf32e1c-0486-0cfb-c4d5-1d40188e723b}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{dbf32e1c-0486-0cfb-c4d5-1d40188e723b}\ = "targetedbanner browser optimizer"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{dbf32e1c-0486-0cfb-c4d5-1d40188e723b}\InProcServer32	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2356 wrote to memory of 2380	2356	regsvr32.exe	16
PID 2356 wrote to memory of 2380	2356	regsvr32.exe	16
PID 2356 wrote to memory of 2380	2356	regsvr32.exe	16
PID 2356 wrote to memory of 2380	2356	regsvr32.exe	16
PID 2356 wrote to memory of 2380	2356	regsvr32.exe	16
PID 2356 wrote to memory of 2380	2356	regsvr32.exe	16
PID 2356 wrote to memory of 2380	2356	regsvr32.exe	16

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\00e8d594cc7042a75f4c17574dab6ca1.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2356
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\00e8d594cc7042a75f4c17574dab6ca1.dll
  2⤵
  - Adds Run key to start application
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:2380

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Browser Extensions

T1176

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads