e7b11931930f0623f289aa84ab4ab9b2212dc23583c421b4f05eee1115903f85

Analysis

max time kernel
119s
max time network
124s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
12-01-2024 10:22

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General

Target

5631c4cbcc0182e5f1edd3d356d13834.dll
Size

1.5MB
MD5

5631c4cbcc0182e5f1edd3d356d13834
SHA1

ca52c0b66a720f9f8f0f9b17a9a65582d2c953cf
SHA256

e7b11931930f0623f289aa84ab4ab9b2212dc23583c421b4f05eee1115903f85
SHA512

a7742cd3e1ae0fb1e20ed4a957fd68e290132db3f4f736edbc9a15fed0e42388161690a9d297c2dc0ec25395d5764e1b0b9797d1b6fc6f4ca54464fc4d705b12
SSDEEP

24576:AUJqmHbsf2ZBFm9zwyQtFt++ydgLTsBmgaf48vAo3msKPAOw:AUe805kzydQThgaf48oopKW

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\{BAA1640C-9BF1-4F1D-BBD5-4FE879308AB4}	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BAA1640C-9BF1-4F1D-BBD5-4FE879308AB4}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\5631c4cbcc0182e5f1edd3d356d13834.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\5631c4cbcc0182e5f1edd3d356d13834.btrm	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\5631c4cbcc0182e5f1edd3d356d13834.btrm\Clsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\5631c4cbcc0182e5f1edd3d356d13834.btrm\Clsid\ = "{BAA1640C-9BF1-4F1D-BBD5-4FE879308AB4}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BAA1640C-9BF1-4F1D-BBD5-4FE879308AB4}\ProgID\ = "5631c4cbcc0182e5f1edd3d356d13834.btrm"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BAA1640C-9BF1-4F1D-BBD5-4FE879308AB4}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BAA1640C-9BF1-4F1D-BBD5-4FE879308AB4}\ = "btrm"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BAA1640C-9BF1-4F1D-BBD5-4FE879308AB4}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BAA1640C-9BF1-4F1D-BBD5-4FE879308AB4}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\5631c4cbcc0182e5f1edd3d356d13834.btrm\ = "btrm"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BAA1640C-9BF1-4F1D-BBD5-4FE879308AB4}\ProgID	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1948 wrote to memory of 2300	1948	regsvr32.exe	28
PID 1948 wrote to memory of 2300	1948	regsvr32.exe	28
PID 1948 wrote to memory of 2300	1948	regsvr32.exe	28
PID 1948 wrote to memory of 2300	1948	regsvr32.exe	28
PID 1948 wrote to memory of 2300	1948	regsvr32.exe	28
PID 1948 wrote to memory of 2300	1948	regsvr32.exe	28
PID 1948 wrote to memory of 2300	1948	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\5631c4cbcc0182e5f1edd3d356d13834.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1948
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\5631c4cbcc0182e5f1edd3d356d13834.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:2300

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/2300-0-0x0000000001DE0000-0x0000000001F6F000-memory.dmp

Filesize
1.6MB

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