104dceb947659e7b499ed14b9e1e2148c8c36515f636fbefb709801b47c5d8ad

Analysis

max time kernel
93s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
08/09/2024, 11:02

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General

Target
a27ec16874cb9dc154830bd9c5812d60N.dll
Size 76KB
Sample240908-m5keysvdje
SHA256 104dceb947659e7b499ed14b9e1e2148c8c36515f636fbefb709801b47c5d8ad
MD5 a27ec16874cb9dc154830bd9c5812d60
SHA1 830384c8e70592eb942707b793fdca7c0579f5fd
SHA512 a995e6e0dbd02039e149d218c495ab96385e9d241d0499e014e83baa5ca54ccbc5e050e0dca7f7f71327a459479de86793fc7e3093f0bb52fc6b71b5ae587580
SSDEEP 1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7Zw/z6S:c8y93KQjy7G55riF1cMo03yz6S
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/4856-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4856-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2248	4856	WerFault.exe	83

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	4856	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4456 wrote to memory of 4856	4456	rundll32.exe	83
PID 4456 wrote to memory of 4856	4456	rundll32.exe	83
PID 4456 wrote to memory of 4856	4456	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a27ec16874cb9dc154830bd9c5812d60N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4456
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a27ec16874cb9dc154830bd9c5812d60N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4856
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4856 -s 716
    3⤵
    - Program crash
    PID:2248

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4856 -ip 4856
1⤵
PID:2852

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/4856-0-0x0000000010000000-0x0000000010030000-memory.dmp

Download

memory/4856-1-0x0000000010000000-0x0000000010030000-memory.dmp