bc54c023051826946addecb5d79d6d803ef9954284acb58f340344765ee232bc

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03/10/2024, 05:46

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General

Target

$R0.dll
Size

76KB
MD5

ee5fb0fd8c2d19d90e8fad8e8636a38e
SHA1

5d41abc6c1e69e72466eeb4e4f2128ac0343bb16
SHA256

02e1d44c854de1f8400a1cc24c2ba89efec402cf327dd192b0c581c6e01dede9
SHA512

607212af21ecd1d0bb0f308f566a457c8ed57d71eb4848242f5efe450de149b232c0953dde49140a8b4e6571fabbc21196272a1a856a6b34cb2da27c38def68f
SSDEEP

1536:i9WOwFoMsRscYxgzD9Fs8DgbSXNNB7vrf52rTYa:iP2/IhDFX3Brf52rTh

Score

6^/10

adware discovery 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
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{A6174F27-1FFF-E1D6-A93F-BA48AD5DD448}	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{A6174F27-1FFF-E1D6-A93F-BA48AD5DD448}\NoExplorer = "1"	regsvr32.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A6174F27-1FFF-E1D6-A93F-BA48AD5DD448}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A6174F27-1FFF-E1D6-A93F-BA48AD5DD448}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$R0.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A6174F27-1FFF-E1D6-A93F-BA48AD5DD448}\InProcServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A6174F27-1FFF-E1D6-A93F-BA48AD5DD448}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A6174F27-1FFF-E1D6-A93F-BA48AD5DD448}\ = "DealPly"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 916 wrote to memory of 3404	916	regsvr32.exe	84
PID 916 wrote to memory of 3404	916	regsvr32.exe	84
PID 916 wrote to memory of 3404	916	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\$R0.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:916
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\$R0.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:3404

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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