087b07fad192dda80e27551b579b8b00ca29910514cd99903ca1f3ec95ac2866

Analysis

max time kernel
72s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
09-01-2023 10:47

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General

Target

正常测试2/叶进伟的简历.pdf.lnk
Size

867B
MD5

f393c4cbc4d8a162e199558e15b72fa3
SHA1

04aca1028521f4cac66063745d8b45f6da3a1442
SHA256

fc557da3de3773c052d2c1055c61d6e41f0efad16287518103f0c7093e7cbe6e
SHA512

e59189df92c3a83a3107cb5b5b454d19d4851b71c7bc5d0c5d4f281d79a1b50a2c7658a687f5ad6c2f99e28905bcdb2462f5ef3136721ea51514a2ae65c0201f

Score

8^/10

upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5080-134-0x0000000000400000-0x000000000053E000-memory.dmp	upx
behavioral2/memory/5080-135-0x0000000000400000-0x000000000053E000-memory.dmp	upx

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation	cmd.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5080	LiveUpdate.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 964 wrote to memory of 2368	964	cmd.exe	83
PID 964 wrote to memory of 2368	964	cmd.exe	83
PID 1856 wrote to memory of 5080	1856	explorer.exe	85
PID 1856 wrote to memory of 5080	1856	explorer.exe	85
PID 1856 wrote to memory of 5080	1856	explorer.exe	85

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\正常测试2\叶进伟的简历.pdf.lnk
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:964
- C:\Windows\explorer.exe
  "C:\Windows\explorer.exe" 111111\LiveUpdate.exe
  2⤵
  PID:2368

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Suspicious use of WriteProcessMemory
PID:1856
- C:\Users\Admin\AppData\Local\Temp\正常测试2\111111\LiveUpdate.exe
  "C:\Users\Admin\AppData\Local\Temp\正常测试2\111111\LiveUpdate.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:5080

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/5080-134-0x0000000000400000-0x000000000053E000-memory.dmp

Filesize
1.2MB

Download
memory/5080-135-0x0000000000400000-0x000000000053E000-memory.dmp

Filesize
1.2MB

Download