25c2957c2aaa0bca473f8ce5e0fc854395640694f170f081a214778af9ce227a

Analysis

max time kernel
107s
max time network
114s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01/09/2024, 13:05

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General

Target

9f9c33fb5864f314950059e85e4ba270N.dll
Size

1.1MB
MD5

9f9c33fb5864f314950059e85e4ba270
SHA1

64dd36e9b6507553d33a54c4d22576212c162df5
SHA256

25c2957c2aaa0bca473f8ce5e0fc854395640694f170f081a214778af9ce227a
SHA512

38c40297753fa86176daf53ef0fdede920e3cb7bd783655fbfa0105561f56b551dd6efaee1ab741bbecf2cbbd7d0b6398dd09b6ba413933f48f1e0bb790dad7b
SSDEEP

24576:3QLfxlDa7ZVd1feMlIylBM6Ehqau3gVAwNCCvU6iuq3oT:3QL5Gd124IylH0qawb13oT

Score

4^/10

discovery

Malware Config

Signatures

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system\ie.ico	rundll32.exe
File created	C:\Windows\system\Google.ico	rundll32.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	rundll32.exe

Modifies registry class 14 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F935DC20-1CF0-11D0-ADB9-00C04FD58A0B}\1.0\HELPDIR	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F935DC20-1CF0-11D0-ADB9-00C04FD58A0B}\1.0	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{E027505C-87EC-458E-B01A-2F9909D00BF8}\ = "Google Chrome"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{E027505C-87EC-458E-B01A-2F9909D00BF8}\defaulticon	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{E027505C-87EC-458E-B01A-2F9909D00BF8}\defaulticon\ = "C:\\Windows\\system\\Google.ico"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{E027505C-87EC-458E-B01A-2F9909D00BF8}\shell\open	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{E027505C-87EC-458E-B01A-2F9909D00BF8}\shell\open\command	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{E027505C-87EC-458E-B01A-2F9909D00BF8}\shellfolder\Attributes = "0"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{E027505C-87EC-458E-B01A-2F9909D00BF8}\shell	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{E027505C-87EC-458E-B01A-2F9909D00BF8}\shell\open\command\ = "C:\\Program Files\\Google\\Chrome\\Application\\chrome.exe http://hao123.5ama.com"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F935DC20-1CF0-11D0-ADB9-00C04FD58A0B}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{E027505C-87EC-458E-B01A-2F9909D00BF8}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{E027505C-87EC-458E-B01A-2F9909D00BF8}\shellfolder	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1084	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1596 wrote to memory of 1084	1596	rundll32.exe	84
PID 1596 wrote to memory of 1084	1596	rundll32.exe	84
PID 1596 wrote to memory of 1084	1596	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9f9c33fb5864f314950059e85e4ba270N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1596
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\9f9c33fb5864f314950059e85e4ba270N.dll,#1
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of SetWindowsHookEx
  PID:1084

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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