4cdbc625c34fdfd45edc7b55fe51b946731c9da57ea29170b7621f48e1773a32

Analysis

max time kernel
119s
max time network
16s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
27/01/2025, 16:29

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General

Target

4cdbc625c34fdfd45edc7b55fe51b946731c9da57ea29170b7621f48e1773a32N.dll
Size

76KB
MD5

bc88d36264bff903f11271b66c983420
SHA1

b6d1e37e41c59dc3cff18a1c9b9f8afe8faa87d0
SHA256

4cdbc625c34fdfd45edc7b55fe51b946731c9da57ea29170b7621f48e1773a32
SHA512

9e788975033394549dba690622863bc464c64ec0d2471980ef2cdad2d3286cdfe4daf8115dea07b4ed88526183b568be7f10824c7f4d2a6167b02d7e9b917660
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZhiOWmiCc/Wjp:c8y93KQjy7G55riF1cMo03jiOWmc/w

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/2828-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2828-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2828-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2828-9-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2744	2828	WerFault.exe	30

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	2828	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2876 wrote to memory of 2828	2876	rundll32.exe	30
PID 2876 wrote to memory of 2828	2876	rundll32.exe	30
PID 2876 wrote to memory of 2828	2876	rundll32.exe	30
PID 2876 wrote to memory of 2828	2876	rundll32.exe	30
PID 2876 wrote to memory of 2828	2876	rundll32.exe	30
PID 2876 wrote to memory of 2828	2876	rundll32.exe	30
PID 2876 wrote to memory of 2828	2876	rundll32.exe	30
PID 2828 wrote to memory of 2744	2828	rundll32.exe	31
PID 2828 wrote to memory of 2744	2828	rundll32.exe	31
PID 2828 wrote to memory of 2744	2828	rundll32.exe	31
PID 2828 wrote to memory of 2744	2828	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4cdbc625c34fdfd45edc7b55fe51b946731c9da57ea29170b7621f48e1773a32N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2876
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\4cdbc625c34fdfd45edc7b55fe51b946731c9da57ea29170b7621f48e1773a32N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2828
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2828 -s 332
    3⤵
    - Program crash
    PID:2744

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/2828-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2828-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2828-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2828-3-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/2828-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2828-9-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download