ab7c0c327725af67684fcaf5497c6619704198393c3440b566d068d5bd6f358e

Analysis

max time kernel
110s
max time network
17s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
21/08/2024, 03:49

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General

Target
fa805bd67916c36859f8616c0ff12660N.dll
Size 76KB
Sample240821-edndjaydmd
SHA256 ab7c0c327725af67684fcaf5497c6619704198393c3440b566d068d5bd6f358e
MD5 fa805bd67916c36859f8616c0ff12660
SHA1 a42dd293c28b723770ac34757f49c16f563bd8ee
SHA512 d61c7f799e2dfe546ac70d68d5dd7c3b41b922df42a63133525c65f0f8645be73b786604317c618a27540143684e4948a9e39dea76b41a0bcc8c41849d1d745b
SSDEEP 1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7Zww5vKGcaQUS:c8y93KQjy7G55riF1cMo032FR
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
behavioral1/memory/1888-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/1888-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2380	1888	WerFault.exe	31

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	1888	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2280 wrote to memory of 1888	2280	rundll32.exe	31
PID 2280 wrote to memory of 1888	2280	rundll32.exe	31
PID 2280 wrote to memory of 1888	2280	rundll32.exe	31
PID 2280 wrote to memory of 1888	2280	rundll32.exe	31
PID 2280 wrote to memory of 1888	2280	rundll32.exe	31
PID 2280 wrote to memory of 1888	2280	rundll32.exe	31
PID 2280 wrote to memory of 1888	2280	rundll32.exe	31
PID 1888 wrote to memory of 2380	1888	rundll32.exe	32
PID 1888 wrote to memory of 2380	1888	rundll32.exe	32
PID 1888 wrote to memory of 2380	1888	rundll32.exe	32
PID 1888 wrote to memory of 2380	1888	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\fa805bd67916c36859f8616c0ff12660N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2280
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\fa805bd67916c36859f8616c0ff12660N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1888
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1888 -s 308
    3⤵
    - Program crash
    PID:2380

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/1888-0-0x0000000010000000-0x0000000010030000-memory.dmp

Download

memory/1888-1-0x0000000010000000-0x0000000010030000-memory.dmp