Overview

overview

9

Static

static

7

dc0b3b9b3b...4e.exe

windows7_x64

9

dc0b3b9b3b...4e.exe

windows10-2004_x64

9

Analysis

  • max time kernel
    117s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    15-02-2022 05:33

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General

  • Target

    dc0b3b9b3bdc64d5074f2126ed397258effa721601c645428bcc653b8cdf2f4e.exe

  • Size

    2.4MB

  • MD5

    2ca1fa563d961e96561622edcab5d864

  • SHA1

    d9fcd898fe5ddc4a19ae97a6c4ff1f2664a808ac

  • SHA256

    dc0b3b9b3bdc64d5074f2126ed397258effa721601c645428bcc653b8cdf2f4e

  • SHA512

    916443f39a0e14431b369a6b9c8d37ab12689559f39f3bbd0f9988aa17db2a914c01c9e14cbf7be92146427046e81c76e3dc91f1e767428079c60956e1414b7d

Score
9/10
evasionthemidatrojan

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
    evasion
  • Blocklisted process makes network request 4 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Themida packer 3 IoCs

    Detects Themida, an advanced Windows software protection system.

    themida
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 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.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dc0b3b9b3bdc64d5074f2126ed397258effa721601c645428bcc653b8cdf2f4e.exe
    "C:\Users\Admin\AppData\Local\Temp\dc0b3b9b3bdc64d5074f2126ed397258effa721601c645428bcc653b8cdf2f4e.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1072
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\fgfjlwu.vbs"
      2⤵
        PID:1812
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\shhqttdd.vbs"
        2⤵
        • Blocklisted process makes network request
        PID:1536

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Privilege Escalation

    Defense Evasion

    Virtualization/Sandbox Evasion

    1
    T1497

    Credential Access

    Discovery

    Query Registry

    3
    T1012

    Virtualization/Sandbox Evasion

    1
    T1497

    System Information Discovery

    4
    T1082

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Web Service

    1
    T1102

    Impact

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\fgfjlwu.vbs
      MD5

      659c37cf26a1cacfdddd3f6825fa4e90

      SHA1

      c78b4d148126ccac0ad3116b356a3170f674c343

      SHA256

      0c2e8d25fe726c9fd77f70ca1c31d051c84f196a276d8419fd9afdcef12b8732

      SHA512

      056ec4eba7ffa96fa50fbcac40f763b79fc567077853d434c4ac3a86980e72299382d62bdc210354652f9c7330cb571a9ac10189d7349b2aea40e2f45498fb09

      Download Submit
    • C:\Users\Admin\AppData\Local\Temp\shhqttdd.vbs
      MD5

      f541b7297a1718b237a840ed1d783d7e

      SHA1

      4d4d33cf0934c8b67db52f923cdd90d6c6af6fd2

      SHA256

      ff7bd6ddaefa92ef8a4d2c6dcf61421ceddb2ab8d9deb648e5d75994fa52c5d3

      SHA512

      5c758149fd1d0ebbbd87ee4cdb9c930892f0194d7d9ccb0a17b365f820a6da4280b8a5ebc0b228be4ec0ffd02fe5011e0677c517d0429ce8ed4e15224446a0e3

      Download Submit
    • memory/1072-53-0x0000000075D61000-0x0000000075D63000-memory.dmp
      Filesize

      8KB

      Download
    • memory/1072-54-0x0000000077850000-0x0000000077852000-memory.dmp
      Filesize

      8KB

      Download
    • memory/1072-55-0x0000000001280000-0x00000000018EE000-memory.dmp
      Filesize

      6.4MB

      Download
    • memory/1072-56-0x0000000001280000-0x00000000018EE000-memory.dmp
      Filesize

      6.4MB

      Download
    • memory/1072-57-0x0000000001280000-0x00000000018EE000-memory.dmp
      Filesize

      6.4MB

      Download