74be6c40d1f22f291dd504e97570c7c678ce9e46e32dfd94c94126de75ae21cd

Analysis

max time kernel
117s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-10-2024 07:28

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General

Target

CaiHong.dll
Size

748KB
MD5

e9b2fc0c4c0900d83d8a39f2e2c1c469
SHA1

04c5baf11d8a599167071e8c57b0a4d02c9c6898
SHA256

9f65e9659a271cbc65bc7c690fa9bd36a4e3c254bf4d7275376598d5acd07741
SHA512

f8c6d95a4d11f87b7aa2ef1dfeed42d04c60ecc401b4bee9eff11d489a66416fa189471505a6a09646763be9f9ed2d20c39ac2a3a4e1ee0d961d680d4c2f9699
SSDEEP

12288:Ee+nebgoM9l6kPLeKioHMCZpWcU0JVas6bKiZXbfoPBjYKppppppppyppVppppps:dMlgGWJjKiZXbfCVGS

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2372	2380	WerFault.exe	30

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

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 812 wrote to memory of 2380	812	rundll32.exe	30
PID 812 wrote to memory of 2380	812	rundll32.exe	30
PID 812 wrote to memory of 2380	812	rundll32.exe	30
PID 812 wrote to memory of 2380	812	rundll32.exe	30
PID 812 wrote to memory of 2380	812	rundll32.exe	30
PID 812 wrote to memory of 2380	812	rundll32.exe	30
PID 812 wrote to memory of 2380	812	rundll32.exe	30
PID 2380 wrote to memory of 2372	2380	rundll32.exe	31
PID 2380 wrote to memory of 2372	2380	rundll32.exe	31
PID 2380 wrote to memory of 2372	2380	rundll32.exe	31
PID 2380 wrote to memory of 2372	2380	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\CaiHong.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:812
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\CaiHong.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2380
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2380 -s 240
    3⤵
    - Program crash
    PID:2372

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

Replay Monitor

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Downloads

memory/2380-0-0x0000000000170000-0x000000000017C000-memory.dmp

Filesize
48KB

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