0efd620f35014f5371ea4bdc13f3145226e42b9858c184c3a931df751dff4581

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
26-12-2024 19:46

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General

Target

0efd620f35014f5371ea4bdc13f3145226e42b9858c184c3a931df751dff4581.dll
Size

76KB
MD5

a5e5ff6c4661bc40a3474ca593a03949
SHA1

e0f8d059d77a3080527cf1917efb32d2a40ff25a
SHA256

0efd620f35014f5371ea4bdc13f3145226e42b9858c184c3a931df751dff4581
SHA512

84be8bb76e065fbb22b123723bb6b08f1189eec667198e2bccec40860fa347f8ffa4feae4207e9d41bcfd9a51c6c38cca14a1ee918f2247a32555efdb1663ce3
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7Z50WqLfvF:c8y93KQjy7G55riF1cMo038LfvF

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/1704-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/1704-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/1704-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2304	1704	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	1704	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2608 wrote to memory of 1704	2608	rundll32.exe	31
PID 2608 wrote to memory of 1704	2608	rundll32.exe	31
PID 2608 wrote to memory of 1704	2608	rundll32.exe	31
PID 2608 wrote to memory of 1704	2608	rundll32.exe	31
PID 2608 wrote to memory of 1704	2608	rundll32.exe	31
PID 2608 wrote to memory of 1704	2608	rundll32.exe	31
PID 2608 wrote to memory of 1704	2608	rundll32.exe	31
PID 1704 wrote to memory of 2304	1704	rundll32.exe	32
PID 1704 wrote to memory of 2304	1704	rundll32.exe	32
PID 1704 wrote to memory of 2304	1704	rundll32.exe	32
PID 1704 wrote to memory of 2304	1704	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0efd620f35014f5371ea4bdc13f3145226e42b9858c184c3a931df751dff4581.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2608
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\0efd620f35014f5371ea4bdc13f3145226e42b9858c184c3a931df751dff4581.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1704
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1704 -s 328
    3⤵
    - Program crash
    PID:2304

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/1704-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1704-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1704-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download