66637624bd2ca8299a1cc7a157a7613efb80b417568e01ccd9cdb592ecdd4a66

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19/08/2024, 16:45

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General

Target

bin/zlib1.dll
Size

73KB
MD5

c7d4d685a0af2a09cbc21cb474358595
SHA1

b784599c82bb90d5267fd70aaa42acc0c614b5d2
SHA256

e96b397b499d9eaa3f52eaf496ca8941e80c0ad1544879ccadf02bf2c6a1ecfc
SHA512

fed2c126a499fae6215e0ef7d76aeec45b60417ed11c7732379d1e92c87e27355fe8753efed86af4f58d52ea695494ef674538192fac1e8a2a114467061a108b
SSDEEP

1536:+4nToIf2W/nkQRZHaamLQHoIOah7Vryh7IO4cZlIXw6Epb:bTBfHdRZH9mLQHuaBVGn4FXw6E1

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4912	4736	WerFault.exe	84

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 3 IoCs

description	pid	Process	procid_target
PID 4968 wrote to memory of 4736	4968	rundll32.exe	84
PID 4968 wrote to memory of 4736	4968	rundll32.exe	84
PID 4968 wrote to memory of 4736	4968	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bin\zlib1.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4968
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bin\zlib1.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4736
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4736 -s 600
    3⤵
    - Program crash
    PID:4912

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4736 -ip 4736
1⤵
PID:680

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/4736-0-0x0000000061B80000-0x0000000061B98000-memory.dmp

Filesize
96KB

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