4cbf42edc0b51cf5ea28372e2a86983ffbcc333598e7c946f071a33a440340f5

Analysis

max time kernel
115s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
16/08/2024, 16:36

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
1fb1ef6b1014af8e84a43c50fe02d5e0N.dll
Size 76KB
Sample240816-t4ftpsydmm
SHA256 4cbf42edc0b51cf5ea28372e2a86983ffbcc333598e7c946f071a33a440340f5
MD5 1fb1ef6b1014af8e84a43c50fe02d5e0
SHA1 3e652a8da76d019098d4e08b0a6717eb1bc530c0
SHA512 e0f1e8c9e0a70dff26637c9cc81f1aa9cd15373fa690ffe5a00faca5f0e9d0fba6c1844062662a7a8817c880c66953b8005924a660087a9e785abbb99dd22dd8
SSDEEP 1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZLkn2U39x:c8y93KQjy7G55riF1cMo03GntT
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

discovery upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2716-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/2716-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2008	2716	WerFault.exe	91

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 AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2716	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3468 wrote to memory of 2716	3468	rundll32.exe	91
PID 3468 wrote to memory of 2716	3468	rundll32.exe	91
PID 3468 wrote to memory of 2716	3468	rundll32.exe	91

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1fb1ef6b1014af8e84a43c50fe02d5e0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3468
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\1fb1ef6b1014af8e84a43c50fe02d5e0N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2716
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2716 -s 712
    3⤵
    - Program crash
    PID:2008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2716 -ip 2716
1⤵
PID:4288

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4608,i,3210801877307184477,8078594481454001567,262144 --variations-seed-version --mojo-platform-channel-handle=4612 /prefetch:8
1⤵
PID:4036

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

Loading Replay Monitor...

Downloads

memory/2716-0-0x0000000010000000-0x0000000010030000-memory.dmp

Download

memory/2716-2-0x0000000010000000-0x0000000010030000-memory.dmp