a3a915dd3eb8471844a300a87ce4394a51f1b885012186fa238bed2a9ec24ed0

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-10-2024 20:00

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General

Target

a3a915dd3eb8471844a300a87ce4394a51f1b885012186fa238bed2a9ec24ed0N.dll
Size

76KB
MD5

e13336bd09fada59a7bc46f35d5733e0
SHA1

9ae580d97c87ec49727c663419c596a0f8ae44ab
SHA256

a3a915dd3eb8471844a300a87ce4394a51f1b885012186fa238bed2a9ec24ed0
SHA512

7fcb9a457b750a7a2a2c718c4748b4f6bdc2ba0b1294cd042f1813f5f6c5866f5402d7ea5ec542b7112dc958926eb56d87c04d34ef6b8ff6502c1c138bdbf463
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZDUVvy:c8y93KQjy7G55riF1cMo03u6

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 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2856-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2856-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2856-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2856-5-0x0000000010000000-0x0000000010030000-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 use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2856	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2980 wrote to memory of 2856	2980	rundll32.exe	31
PID 2980 wrote to memory of 2856	2980	rundll32.exe	31
PID 2980 wrote to memory of 2856	2980	rundll32.exe	31
PID 2980 wrote to memory of 2856	2980	rundll32.exe	31
PID 2980 wrote to memory of 2856	2980	rundll32.exe	31
PID 2980 wrote to memory of 2856	2980	rundll32.exe	31
PID 2980 wrote to memory of 2856	2980	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a3a915dd3eb8471844a300a87ce4394a51f1b885012186fa238bed2a9ec24ed0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2980
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a3a915dd3eb8471844a300a87ce4394a51f1b885012186fa238bed2a9ec24ed0N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2856

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/2856-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2856-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2856-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2856-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2856-5-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download