c83bfc375e9ba32819d54615783d1b9873b3ef46da21db7b1d93a53174fb916d

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
08-01-2024 16:59

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General

Target

4bfa2e1c6ab5764170ca87d369a7d8b8.dll
Size

93KB
MD5

4bfa2e1c6ab5764170ca87d369a7d8b8
SHA1

63bcd877aba6fdd91b8cd5815aea5856b359c246
SHA256

c83bfc375e9ba32819d54615783d1b9873b3ef46da21db7b1d93a53174fb916d
SHA512

6e94ada02567c246cd52dbcdba078ba48229c64d7a76a6a58acd1341e30c47a8efd6cb750ab5b2e1dcecc220179881a71760a5f10c8e86cb2f121e0944403954
SSDEEP

1536:VL5YhFx/PolezJDcBP016Yxb/Skux2CNaT+UWZoH8KBjaK+6r9L22:3YJPo8iBPQbM2CMTlz2NX2

Score

7^/10

adware stealer upx

Malware Config

Signatures

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2032-0-0x00000000004C0000-0x0000000000501000-memory.dmp	upx

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\{0818987E-0A1C-4112-A6A1-3A39F2846FA7}	regsvr32.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0818987E-0A1C-4112-A6A1-3A39F2846FA7}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0818987E-0A1C-4112-A6A1-3A39F2846FA7}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\4bfa2e1c6ab5764170ca87d369a7d8b8.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0818987E-0A1C-4112-A6A1-3A39F2846FA7}\InprocServer32\ThreadingModel = "apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0818987E-0A1C-4112-A6A1-3A39F2846FA7}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 2032	2252	regsvr32.exe	16
PID 2252 wrote to memory of 2032	2252	regsvr32.exe	16
PID 2252 wrote to memory of 2032	2252	regsvr32.exe	16
PID 2252 wrote to memory of 2032	2252	regsvr32.exe	16
PID 2252 wrote to memory of 2032	2252	regsvr32.exe	16
PID 2252 wrote to memory of 2032	2252	regsvr32.exe	16
PID 2252 wrote to memory of 2032	2252	regsvr32.exe	16

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\4bfa2e1c6ab5764170ca87d369a7d8b8.dll
1⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:2032

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\4bfa2e1c6ab5764170ca87d369a7d8b8.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2252

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/2032-0-0x00000000004C0000-0x0000000000501000-memory.dmp

Filesize
260KB

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