817e81c92be33961734de8200c6aecc57b9ee2e0049e1a8751a0ad42c986b91b

Analysis

max time kernel
13s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
07-02-2025 23:03

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General

Target

817e81c92be33961734de8200c6aecc57b9ee2e0049e1a8751a0ad42c986b91bN.dll
Size

76KB
MD5

1cf880c5846dc3131ee2a9dbb2b59600
SHA1

85cf56cf42dafc694b6e1b7750e5d5b55c10a6f2
SHA256

817e81c92be33961734de8200c6aecc57b9ee2e0049e1a8751a0ad42c986b91b
SHA512

97d91f105ef938a3f66d181ccf68119cce93fe85fdb3a165764ba855802e051074bc68b952ffa3f95ec0ec0dc71f63bbde92252f797606250c86cf5796ae11ac
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZBiRYlz6:c8y93KQjy7G55riF1cMo03nCj

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/2124-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2124-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2124-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2124-5-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1184	2124	WerFault.exe	29

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	2124	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2660 wrote to memory of 2124	2660	rundll32.exe	29
PID 2660 wrote to memory of 2124	2660	rundll32.exe	29
PID 2660 wrote to memory of 2124	2660	rundll32.exe	29
PID 2660 wrote to memory of 2124	2660	rundll32.exe	29
PID 2660 wrote to memory of 2124	2660	rundll32.exe	29
PID 2660 wrote to memory of 2124	2660	rundll32.exe	29
PID 2660 wrote to memory of 2124	2660	rundll32.exe	29
PID 2124 wrote to memory of 1184	2124	rundll32.exe	30
PID 2124 wrote to memory of 1184	2124	rundll32.exe	30
PID 2124 wrote to memory of 1184	2124	rundll32.exe	30
PID 2124 wrote to memory of 1184	2124	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\817e81c92be33961734de8200c6aecc57b9ee2e0049e1a8751a0ad42c986b91bN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2660
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\817e81c92be33961734de8200c6aecc57b9ee2e0049e1a8751a0ad42c986b91bN.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2124
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2124 -s 272
    3⤵
    - Program crash
    PID:1184

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

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Downloads

memory/2124-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2124-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2124-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2124-5-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download