a1a92fcbf9601e6759581d8a256a508a154ed51eb15dc3cfeceb3a1651cbb19d

Analysis

max time kernel
94s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25/12/2024, 01:13

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General

Target

a1a92fcbf9601e6759581d8a256a508a154ed51eb15dc3cfeceb3a1651cbb19d.dll
Size

203KB
MD5

93ab829b1b0d862b2c1f128384b45526
SHA1

c625e78e2b133bcc528df8898734765290234c4a
SHA256

a1a92fcbf9601e6759581d8a256a508a154ed51eb15dc3cfeceb3a1651cbb19d
SHA512

40f9c92a90e1e77e82630821e06d6cad7e59503912be2f2b48d31b4d2e727a3ec53c91f67c0dfb7859140dceb57fac709747e9aa5d744d412beac8eca6addf89
SSDEEP

3072:hJ8IMILmCa3yx6oFEdgVXnFYf7C9Ugfxm3Nep9viMq:0kmCaiEoFEd+FYOtxmdeviMq

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/4844-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/4844-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3492	4844	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	4844	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4056 wrote to memory of 4844	4056	rundll32.exe	83
PID 4056 wrote to memory of 4844	4056	rundll32.exe	83
PID 4056 wrote to memory of 4844	4056	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a1a92fcbf9601e6759581d8a256a508a154ed51eb15dc3cfeceb3a1651cbb19d.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4056
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a1a92fcbf9601e6759581d8a256a508a154ed51eb15dc3cfeceb3a1651cbb19d.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4844
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4844 -s 704
    3⤵
    - Program crash
    PID:3492

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4844 -ip 4844
1⤵
PID:1424

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

Replay Monitor

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Downloads

memory/4844-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

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memory/4844-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download