Overview

overview

10

Static

static

79e70422b4...8c.exe

windows7-x64

10

79e70422b4...8c.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2022 00:22

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General

  • Target

    79e70422b423b43fede418256a7d41b8ecdaa31349311640d8090d74ef112b8c.exe

  • Size

    316KB

  • MD5

    16fae820d34da4cee9ad12924e167650

  • SHA1

    f8b28c2e06d3002f4fc1234ac9e4c33770194805

  • SHA256

    79e70422b423b43fede418256a7d41b8ecdaa31349311640d8090d74ef112b8c

  • SHA512

    fc94e3ee9edff74f771df4bb6b6be52ccc5270f1f206fee025151b3544362da303295084bbd7972de94ada451189870a3cd27127158825a0575f08e5c116520b

  • SSDEEP

    3072:r6yMB0rNotUohYznHpCWc1aqvJ0L2mnFIEhffuTyZlUU5GflFOhvdewW5esHuNMd:8ureUj+uSvolMz5esHfIged9XrbQ

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
  • Maps connected drives based on registry 3 TTPs 4 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\79e70422b423b43fede418256a7d41b8ecdaa31349311640d8090d74ef112b8c.exe
    "C:\Users\Admin\AppData\Local\Temp\79e70422b423b43fede418256a7d41b8ecdaa31349311640d8090d74ef112b8c.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2472
    • C:\Users\Admin\jjzit.exe
      "C:\Users\Admin\jjzit.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Maps connected drives based on registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:4868
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:2180

    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

    2
    T1012

    System Information Discovery

    3
    T1082

    Peripheral Device Discovery

    1
    T1120

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

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

      316KB

      MD5

      16fae820d34da4cee9ad12924e167650

      SHA1

      f8b28c2e06d3002f4fc1234ac9e4c33770194805

      SHA256

      79e70422b423b43fede418256a7d41b8ecdaa31349311640d8090d74ef112b8c

      SHA512

      fc94e3ee9edff74f771df4bb6b6be52ccc5270f1f206fee025151b3544362da303295084bbd7972de94ada451189870a3cd27127158825a0575f08e5c116520b

      Download Submit
    • C:\Users\Admin\jjzit.exe
      Filesize

      316KB

      MD5

      16fae820d34da4cee9ad12924e167650

      SHA1

      f8b28c2e06d3002f4fc1234ac9e4c33770194805

      SHA256

      79e70422b423b43fede418256a7d41b8ecdaa31349311640d8090d74ef112b8c

      SHA512

      fc94e3ee9edff74f771df4bb6b6be52ccc5270f1f206fee025151b3544362da303295084bbd7972de94ada451189870a3cd27127158825a0575f08e5c116520b

      Download Submit
    • memory/4868-134-0x0000000000000000-mapping.dmp
      Download