Overview

overview

10

Static

static

7

3c320ddeb5...a8.exe

windows7_x64

10

3c320ddeb5...a8.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    4265070s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    17-01-2022 09:39

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General

  • Target

    3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8.exe

  • Size

    2.5MB

  • MD5

    71af238fbf3c5a3a2c2c3594f1ba8a32

  • SHA1

    b9f49782704b14572985ca13b10842d3aa836ad0

  • SHA256

    3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8

  • SHA512

    fb12811297a22a71ead742dcde54357cf712c04ad690ed6103287f903592999fcde804357488e062fb8783a24394cc0ff23fa1ffbb9d15941e38873a75f59d7f

Score
10/10
cryptbotevasionspywarestealerthemidatrojan

Malware Config

Extracted

Family

cryptbot

C2

kotehj62.top

Attributes
  • payload_url

    http://okadoc09.top/download.php?file=makeyr.exe

Signatures

  • CryptBot

    A C++ stealer distributed widely in bundle with other software.

    spywarestealercryptbot
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
    evasion
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Themida packer 4 IoCs

    Detects Themida, an advanced Windows software protection system.

    themida
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • 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 4 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
    evasion
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8.exe
    "C:\Users\Admin\AppData\Local\Temp\3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks computer location settings
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1436
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\SQTCiWfvP & timeout 4 & del /f /q "C:\Users\Admin\AppData\Local\Temp\3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1752
      • C:\Windows\SysWOW64\timeout.exe
        timeout 4
        3⤵
        • Delays execution with timeout.exe
        PID:4084
  • C:\Windows\system32\MusNotification.exe
    C:\Windows\system32\MusNotification.exe
    1⤵
    • Checks processor information in registry
    • Suspicious use of AdjustPrivilegeToken
    PID:936

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

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

5
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • memory/1436-130-0x0000000000940000-0x0000000000FD2000-memory.dmp
    Filesize

    6.6MB

    Download
  • memory/1436-131-0x0000000000940000-0x0000000000FD2000-memory.dmp
    Filesize

    6.6MB

    Download
  • memory/1436-132-0x0000000000940000-0x0000000000FD2000-memory.dmp
    Filesize

    6.6MB

    Download
  • memory/1436-133-0x0000000000940000-0x0000000000FD2000-memory.dmp
    Filesize

    6.6MB

    Download
  • memory/1752-134-0x0000000000000000-mapping.dmp
    Download
  • memory/4084-135-0x0000000000000000-mapping.dmp
    Download