Overview

overview

10

Static

static

1d81e11989...d3.exe

windows7-x64

10

1d81e11989...d3.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    152s
  • max time network
    132s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-10-2022 03:03

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General

  • Target

    1d81e11989cea9fb17def24f2e9a3a8f338cb26a32e4fa2b02f77bdba352c0d3.exe

  • Size

    168KB

  • MD5

    60899d9eae3cffe26624948fcaa9a78b

  • SHA1

    91aea5b27c54fa50bfad8d68652aaf2c6665812d

  • SHA256

    1d81e11989cea9fb17def24f2e9a3a8f338cb26a32e4fa2b02f77bdba352c0d3

  • SHA512

    c46321ef8517924756196e62bc0166b7b4028d0c1ffceb8919e94d5636c71713237ad3af9f643edf522c5c603823c38f3b8ac212b57fc97926b7f10a655be119

  • SSDEEP

    3072:5BR+cDxgB4ZCchor5KFjkF/5YC6XJnnqL:b0Rsha5KFj+yZG

Score
10/10
evasionpersistence

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
    evasion
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 29 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1d81e11989cea9fb17def24f2e9a3a8f338cb26a32e4fa2b02f77bdba352c0d3.exe
    "C:\Users\Admin\AppData\Local\Temp\1d81e11989cea9fb17def24f2e9a3a8f338cb26a32e4fa2b02f77bdba352c0d3.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4380
    • C:\Users\Admin\yafad.exe
      "C:\Users\Admin\yafad.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:2412

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

1
T1158

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\yafad.exe
    Filesize

    168KB

    MD5

    6bdf838fa504d485dce6eb9a3470d1da

    SHA1

    adf98defdbef035af6a22b50348f940768a4c862

    SHA256

    77f7a6192a31160b3b3fbc42092bbd4eb539d60cb76ed21a76079d5138b3383b

    SHA512

    f10d8a9a0cba777c299a2a466b40157e3fd1f1d7610e8b1c54cd09a34d1070e1388ebbd14e38cdd9fabe665312d3b98fc1ec3d52cfdabaf33821937ed33a56e8

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  • C:\Users\Admin\yafad.exe
    Filesize

    168KB

    MD5

    6bdf838fa504d485dce6eb9a3470d1da

    SHA1

    adf98defdbef035af6a22b50348f940768a4c862

    SHA256

    77f7a6192a31160b3b3fbc42092bbd4eb539d60cb76ed21a76079d5138b3383b

    SHA512

    f10d8a9a0cba777c299a2a466b40157e3fd1f1d7610e8b1c54cd09a34d1070e1388ebbd14e38cdd9fabe665312d3b98fc1ec3d52cfdabaf33821937ed33a56e8

    Download Submit
  • memory/2412-134-0x0000000000000000-mapping.dmp
    Download