40663f100067c2e9aa1116b8dadc11d48f7952a17f7f78a4bea8e520547e59a4

Analysis

max time kernel
114s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
23/08/2024, 22:31

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General

Target
f54ccb3a64671ae44594a29ba95af7d0N.dll
Size 76KB
Sample240823-2fcfdasgml
SHA256 40663f100067c2e9aa1116b8dadc11d48f7952a17f7f78a4bea8e520547e59a4
MD5 f54ccb3a64671ae44594a29ba95af7d0
SHA1 154c77720421b5dbbbdb8ae03c4f0e9e65010525
SHA512 e79dec285b13e7f58a09e98a415cf4cc7212f6240fcd35d2f2f4b437b9e93adcefa69b64fac2f5c5dde5af4e7f1129b300d1ee8548208a60d7b8f29656e35d0a
SSDEEP 1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZaUG:c8y93KQjy7G55riF1cMo03QP
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

discovery persistence privilege_escalation upx

Malware Config

Signatures

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3712-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/3712-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4840	3712	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	3712	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4816 wrote to memory of 3712	4816	rundll32.exe	91
PID 4816 wrote to memory of 3712	4816	rundll32.exe	91
PID 4816 wrote to memory of 3712	4816	rundll32.exe	91

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f54ccb3a64671ae44594a29ba95af7d0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4816
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\f54ccb3a64671ae44594a29ba95af7d0N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:3712
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3712 -s 712
    3⤵
    - Program crash
    PID:4840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3712 -ip 3712
1⤵
PID:1444

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=4508,i,16315016104747277319,5510969007830467313,262144 --variations-seed-version --mojo-platform-channel-handle=1904 /prefetch:8
1⤵
PID:4716

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3712-0-0x0000000010000000-0x0000000010030000-memory.dmp

Download

memory/3712-2-0x0000000010000000-0x0000000010030000-memory.dmp