Analysis

  • max time kernel
    167s
  • max time network
    175s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    14-02-2022 07:56

General

  • Target

    3b4ae39137cfcf510da5f05540860a07cc6fb8c586cd5c75ef0edc344f3ca3fe.exe

  • Size

    335KB

  • MD5

    f56c9000b6c689656e92063874a8e48b

  • SHA1

    fc6458c4d5e44df6e1f68699df32eb6f1488d107

  • SHA256

    3b4ae39137cfcf510da5f05540860a07cc6fb8c586cd5c75ef0edc344f3ca3fe

  • SHA512

    4e587a61540dfc9cabae42a181811d617739eb3a7e7f3c594cfc096e106a78e2dc38182561d4a880f0c923f39827c94a1b59fbcdadd0d5f264ff8d44804efb6d

Score
10/10

Malware Config

Signatures

  • Upatre

    Upatre is a generic malware downloader.

  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 51 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3b4ae39137cfcf510da5f05540860a07cc6fb8c586cd5c75ef0edc344f3ca3fe.exe
    "C:\Users\Admin\AppData\Local\Temp\3b4ae39137cfcf510da5f05540860a07cc6fb8c586cd5c75ef0edc344f3ca3fe.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3956
    • C:\Users\Admin\AppData\Local\Temp\szgfw.exe
      "C:\Users\Admin\AppData\Local\Temp\szgfw.exe"
      2⤵
      • Executes dropped EXE
      PID:3708
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:780
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k NetworkService -p
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    PID:3040
  • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
    C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:2200

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/3956-130-0x0000000002140000-0x0000000002141000-memory.dmp

    Filesize

    4KB