f5ecf00ecf5687fe7185befcc65ba0267d5f445b4274586143f79903c320665d

Analysis

max time kernel
14s
max time network
19s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
18/08/2024, 18:09

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General

Target

Windows蔷薇管理修复调整专家/krnln.dll
Size

448KB
MD5

7a4ae7f76a7f63f54a952cb6a09733da
SHA1

5db6c8e5127c633e50a7753b4eb62ba3f9e4729b
SHA256

b31b39f999fcabbf77cf76178480a46571e1369e91e50eb3a02f8c1e6c537325
SHA512

106ca76cb154a619eb05eb37228c01c26e19b06c9a546e8400a70e40996c6e50c931821af8b2afdb93584e2c4c6742c345ec81316b368795b2f727d5a81f9144
SSDEEP

6144:DVnNlFC1W0HcdnVtTdKO++lmV9E+0ANDO6T8BdbTFp9dzVKraIH00eR7DZviq3v:FhC1W0QnXYO+RxJaBdDLVKZ00sDNiq3

Score

7^/10

discovery upx

Malware Config

Signatures

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral21/memory/2064-0-0x0000000010000000-0x0000000010134000-memory.dmp	upx
behavioral21/memory/2064-2-0x0000000010000000-0x0000000010134000-memory.dmp	upx
behavioral21/memory/2064-1-0x0000000010000000-0x0000000010134000-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 WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1736 wrote to memory of 2064	1736	rundll32.exe	29
PID 1736 wrote to memory of 2064	1736	rundll32.exe	29
PID 1736 wrote to memory of 2064	1736	rundll32.exe	29
PID 1736 wrote to memory of 2064	1736	rundll32.exe	29
PID 1736 wrote to memory of 2064	1736	rundll32.exe	29
PID 1736 wrote to memory of 2064	1736	rundll32.exe	29
PID 1736 wrote to memory of 2064	1736	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\Windows蔷薇管理修复调整专家\krnln.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1736
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\Windows蔷薇管理修复调整专家\krnln.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2064

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

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/2064-0-0x0000000010000000-0x0000000010134000-memory.dmp

Filesize
1.2MB

Download
memory/2064-2-0x0000000010000000-0x0000000010134000-memory.dmp

Filesize
1.2MB

Download
memory/2064-1-0x0000000010000000-0x0000000010134000-memory.dmp

Filesize
1.2MB

Download