a2b3aa940b559e69ed4a374d77af6a991b764348c7fb11b4f49a6c0247dafd3b

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17-12-2024 09:03

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General

Target

a2b3aa940b559e69ed4a374d77af6a991b764348c7fb11b4f49a6c0247dafd3b.dll
Size

76KB
MD5

ccff5716ed389839ed795884e3845e15
SHA1

a5659e319b2fcab51ead51166eab5e4a792b6e86
SHA256

a2b3aa940b559e69ed4a374d77af6a991b764348c7fb11b4f49a6c0247dafd3b
SHA512

0eda0492f3aacc9815532af41d4d7bc124aece4bfb719cd91aac71132400762a6b5ea0a72f264c17c296bd274dcdf383b4d1e680382082820e07b11432437b34
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZS:c8y93KQjy7G55riF1cMo03s

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 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1744-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/1744-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/1744-3-0x0000000010000000-0x0000000010030000-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 1 IoCs

pid	Process
1744	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1744	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1748 wrote to memory of 1744	1748	rundll32.exe	28
PID 1748 wrote to memory of 1744	1748	rundll32.exe	28
PID 1748 wrote to memory of 1744	1748	rundll32.exe	28
PID 1748 wrote to memory of 1744	1748	rundll32.exe	28
PID 1748 wrote to memory of 1744	1748	rundll32.exe	28
PID 1748 wrote to memory of 1744	1748	rundll32.exe	28
PID 1748 wrote to memory of 1744	1748	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a2b3aa940b559e69ed4a374d77af6a991b764348c7fb11b4f49a6c0247dafd3b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1748
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a2b3aa940b559e69ed4a374d77af6a991b764348c7fb11b4f49a6c0247dafd3b.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1744

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/1744-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1744-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1744-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1744-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download