Overview

overview

10

Static

static

7

file_2.exe

windows7_x64

10

file_2.exe

windows10_x64

10

Analysis

  • max time kernel
    125s
  • max time network
    127s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    29-12-2021 14:04

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General

  • Target

    file_2.exe

  • Size

    2.5MB

  • MD5

    9176db54f9eec97d7900bb5e5aa97d62

  • SHA1

    d58d81ee1e2eb302f8c059e3f02a2c1b3a880889

  • SHA256

    192ea5280a05d8d5fb39c4834befe628a396e4cd5a898ebb3967466b4295774f

  • SHA512

    aa38e8b75cfcca6fd1989717510d6ce04847fd492c8da236dbb11a4cd9ee14539d5955acd43b98ccbcd2c49dea33b38ffd02d306109cb76861ea2d4c94d55769

Score
10/10
cryptbotdiscoveryevasionspywarestealerthemidatrojan

Malware Config

Extracted

Family

cryptbot

C2

hevahu32.top

morypd03.top
Attributes
  • payload_url

    http://kyrpbr04.top/download.php?file=orrery.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.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Themida packer 4 IoCs

    Detects Themida, an advanced Windows software protection system.

    themida
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
    spyware
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • 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 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file_2.exe
    "C:\Users\Admin\AppData\Local\Temp\file_2.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:2564

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Lateral Movement

Collection

Data from Local System

2
T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • memory/2564-116-0x00000000773B0000-0x000000007753E000-memory.dmp
    Filesize

    1.6MB

    Download
  • memory/2564-115-0x00000000001E0000-0x000000000086A000-memory.dmp
    Filesize

    6.5MB

    Download
  • memory/2564-117-0x00000000001E0000-0x000000000086A000-memory.dmp
    Filesize

    6.5MB

    Download
  • memory/2564-118-0x00000000001E0000-0x000000000086A000-memory.dmp
    Filesize

    6.5MB

    Download
  • memory/2564-119-0x00000000001E0000-0x000000000086A000-memory.dmp
    Filesize

    6.5MB

    Download