bc0135b88996181df5a7c01834c5a9de1b5175237b686b2cfbb16af24bf4f782

Analysis

max time kernel
72s
max time network
18s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 20:09

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General

Target

bc0135b88996181df5a7c01834c5a9de1b5175237b686b2cfbb16af24bf4f782N.dll
Size

76KB
MD5

107fd9b2657d4974fc07583469b9e010
SHA1

5a25c12b08323bd2efc422e20287a81931495b49
SHA256

bc0135b88996181df5a7c01834c5a9de1b5175237b686b2cfbb16af24bf4f782
SHA512

f9c6b46c67b909d52dfcc61440ba30ca19d9690b13d1d43d85ce8fa70cf8ab0c5415026275d948f78d6a4637a79b6a5fbcdf614c346bf2a4c42d2c551ed5e966
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZqezIiA:c8y93KQjy7G55riF1cMo03oeza

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/2748-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2748-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2748-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2836	2748	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	2748	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2484 wrote to memory of 2748	2484	rundll32.exe	30
PID 2484 wrote to memory of 2748	2484	rundll32.exe	30
PID 2484 wrote to memory of 2748	2484	rundll32.exe	30
PID 2484 wrote to memory of 2748	2484	rundll32.exe	30
PID 2484 wrote to memory of 2748	2484	rundll32.exe	30
PID 2484 wrote to memory of 2748	2484	rundll32.exe	30
PID 2484 wrote to memory of 2748	2484	rundll32.exe	30
PID 2748 wrote to memory of 2836	2748	rundll32.exe	31
PID 2748 wrote to memory of 2836	2748	rundll32.exe	31
PID 2748 wrote to memory of 2836	2748	rundll32.exe	31
PID 2748 wrote to memory of 2836	2748	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bc0135b88996181df5a7c01834c5a9de1b5175237b686b2cfbb16af24bf4f782N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2484
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bc0135b88996181df5a7c01834c5a9de1b5175237b686b2cfbb16af24bf4f782N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2748
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2748 -s 312
    3⤵
    - Program crash
    PID:2836

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/2748-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2748-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2748-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download