914e5661c5fe1de36adf188278360f426e6849d73ba0d3cdd062c2464b9e4cdf

Analysis

max time kernel
122s
max time network
125s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
14/02/2024, 16:26

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General

Target
9c22120b58617560c56b934ef13c8d08.dll
Size 85KB
Sample240214-txmnnsfd5x
SHA256 914e5661c5fe1de36adf188278360f426e6849d73ba0d3cdd062c2464b9e4cdf
MD5 9c22120b58617560c56b934ef13c8d08
SHA1 603173c3e648b31711a42377add04a4ded4c66b5
SHA512 0342fe52d9c719280e43121dc5d0f36733edceace98d63173ac7c1bb891108dca6eb57077e88a1c90364d7c113f491beff984e97340538378b598d452d32cde6
SSDEEP 1536:FQvzX4wLT+mdDkrlnVILjQqkHciO8XCf6l465NEPngkoK2VMiM/0AJMG85:qvf11ilnijZ74XMDeNEPngkb22iyzG
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

adware stealer upx

Malware Config

Signatures

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3044-1-0x0000000000400000-0x0000000000436000-memory.dmp	upx
behavioral1/memory/3044-3-0x0000000000400000-0x0000000000436000-memory.dmp	upx
behavioral1/memory/3044-2-0x0000000000400000-0x0000000000436000-memory.dmp	upx
behavioral1/memory/3044-5-0x0000000000400000-0x0000000000436000-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\{29E57E6B-3C6F-4790-BDED-EDBFBC26B091}	rundll32.exe

Modifies registry class 6 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{29E57E6B-3C6F-4790-BDED-EDBFBC26B091}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\9c22120b58617560c56b934ef13c8d08.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{29E57E6B-3C6F-4790-BDED-EDBFBC26B091}\InprocServer32\ThreadingModel = "apartment"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{29E57E6B-3C6F-4790-BDED-EDBFBC26B091}\InprocServer32	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{29E57E6B-3C6F-4790-BDED-EDBFBC26B091}	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2296 wrote to memory of 3044	2296	rundll32.exe	28
PID 2296 wrote to memory of 3044	2296	rundll32.exe	28
PID 2296 wrote to memory of 3044	2296	rundll32.exe	28
PID 2296 wrote to memory of 3044	2296	rundll32.exe	28
PID 2296 wrote to memory of 3044	2296	rundll32.exe	28
PID 2296 wrote to memory of 3044	2296	rundll32.exe	28
PID 2296 wrote to memory of 3044	2296	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9c22120b58617560c56b934ef13c8d08.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2296
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\9c22120b58617560c56b934ef13c8d08.dll,#1
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:3044

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/3044-0-0x0000000000540000-0x0000000000579000-memory.dmp

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memory/3044-1-0x0000000000400000-0x0000000000436000-memory.dmp

Download

memory/3044-3-0x0000000000400000-0x0000000000436000-memory.dmp

Download

memory/3044-2-0x0000000000400000-0x0000000000436000-memory.dmp

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memory/3044-4-0x0000000000540000-0x0000000000579000-memory.dmp

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memory/3044-5-0x0000000000400000-0x0000000000436000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads