b72c8f07db138d62fa191c5259c4e9e12566f3ea5e5ea8c09806dc15a705615c

Analysis

max time kernel
114s
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, 04:34

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General

Target
8bb7977f75af3159c7157894be364bc0N.dll
Size 76KB
Sample240816-e67b4svhkb
SHA256 b72c8f07db138d62fa191c5259c4e9e12566f3ea5e5ea8c09806dc15a705615c
MD5 8bb7977f75af3159c7157894be364bc0
SHA1 85cfb719b65aa7c5cf7b9dc517375801a6acf713
SHA512 66cb0b7cafb37970f42ae5f72800842dfd9e290e9fd9363a49dfbe090a95e18f6d83bde2104ecb25dbbc87924d299096e7d731fd28f04a472deeced1a2079ef3
SSDEEP 1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7Zffc:c8y93KQjy7G55riF1cMo03Vc
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/2248-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/2248-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

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 behavior: EnumeratesProcesses 2 IoCs

pid	Process
2248	rundll32.exe
2248	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2248	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4428 wrote to memory of 2248	4428	rundll32.exe	91
PID 4428 wrote to memory of 2248	4428	rundll32.exe	91
PID 4428 wrote to memory of 2248	4428	rundll32.exe	91

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8bb7977f75af3159c7157894be364bc0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4428
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\8bb7977f75af3159c7157894be364bc0N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2248

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=4280,i,10065386245627775856,6567048529106473151,262144 --variations-seed-version --mojo-platform-channel-handle=4264 /prefetch:8
1⤵
PID:4164

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/2248-0-0x0000000010000000-0x0000000010030000-memory.dmp

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memory/2248-1-0x0000000010000000-0x0000000010030000-memory.dmp

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