Overview

overview

10

Static

static

10

virussign....ir.exe

windows7-x64

10

virussign....ir.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    102s
  • max time network
    107s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/06/2024, 17:34

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General

  • Target
    virussign.com_b2b4520f75f025f34ea3a080dcbc4ac0.vir.exe
  • Size 6.3MB
  • Sample240618-v5ll1stakb
  • SHA256 fdf018ab608fec42237f49de54f6c0471a83e61540b4d914d3cadfb7c2022dd6
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
blackmoonxmrigbankerevasionminerpersistencespywarestealertrojanupx

Malware Config

Signatures

  • Blackmoon, KrBanker

    Blackmoon also known as KrBanker is banking trojan first discovered in early 2014.

    trojanbankerblackmoon
  • Detect Blackmoon payload 5 IoCs
  • UAC bypass 3 TTPs 1 IoCs
    evasiontrojan
  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

    minerxmrig
  • XMRig Miner payload 16 IoCs
    miner
  • Event Triggered Execution: Image File Execution Options Injection 1 TTPs 12 IoCs
    persistence
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Drops file in System32 directory 64 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs
  • System policy modification 1 TTPs 2 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\virussign.com_b2b4520f75f025f34ea3a080dcbc4ac0.vir.exe
    "C:\Users\Admin\AppData\Local\Temp\virussign.com_b2b4520f75f025f34ea3a080dcbc4ac0.vir.exe"
    1⤵
    • UAC bypass
    • Event Triggered Execution: Image File Execution Options Injection
    • Checks computer location settings
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:4960
    • C:\Windows\svchost.exe
      "C:\Windows\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:840
  • C:\Users\Admin\AppData\Local\Temp\virussign.com_b2b4520f75f025f34ea3a080dcbc4ac0.vir.exe
    C:\Users\Admin\AppData\Local\Temp\virussign.com_b2b4520f75f025f34ea3a080dcbc4ac0.vir.exe "C:\Windows\system32\taskmgr.exe" /4
    1⤵
    • Suspicious use of SetWindowsHookEx
    PID:4684

Network

        MITRE ATT&CK Enterprise v15

        Reconnaissance

        Resource Development

        Initial Access

        Execution

        Persistence

        Boot or Logon Autostart Execution

        1
        T1547

        Registry Run Keys / Startup Folder

        1
        T1547.001

        Event Triggered Execution

        1
        T1546

        Image File Execution Options Injection

        1
        T1546.012

        Privilege Escalation

        Abuse Elevation Control Mechanism

        1
        T1548

        Bypass User Account Control

        1
        T1548.002

        Boot or Logon Autostart Execution

        1
        T1547

        Registry Run Keys / Startup Folder

        1
        T1547.001

        Event Triggered Execution

        1
        T1546

        Image File Execution Options Injection

        1
        T1546.012

        Defense Evasion

        Abuse Elevation Control Mechanism

        1
        T1548

        Bypass User Account Control

        1
        T1548.002

        Impair Defenses

        1
        T1562

        Disable or Modify Tools

        1
        T1562.001

        Modify Registry

        3
        T1112

        Credential Access

        Unsecured Credentials

        1
        T1552

        Credentials In Files

        1
        T1552.001

        Discovery

        Query Registry

        1
        T1012

        System Information Discovery

        3
        T1082

        Lateral Movement

        Collection

        Data from Local System

        1
        T1005

        Command and Control

        Exfiltration

        Impact

        Replay Monitor

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        Downloads

        appvcleaner.exe
        • Path C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.exe
        • Size 8.4MB
        • SHA256 e4d815a8af49adc71d28f9d5f9f0153aa85dba4813dd85ea7cf2dee702a99e07
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        config.json
        • Path C:\Windows\config.json
        • Size 1KB
        • SHA256 4756a234ed3d61fe187d9b6140792e54e7b757545edff82df594a507e528ed8e
        • MD5 SHA1 SHA512
        Submit Download

        svchost.exe
        • Path C:\Windows\svchost.exe
        • Size 833KB
        • SHA256 08b55f9b7dafc53dfc43f7f70cdd7048d231767745b76dc4474370fb323d7ae7
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        vcredist2010_x86.log.html
        • Path C:\vcredist2010_x86.log.html
        • Size 81KB
        • SHA256 c37e5f135fe8a124f4d173aa410e6b9ead53916fd09cf3194e82118a646650f1
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        memory/840-398-0x0000000000400000-0x00000000004DA000-memory.dmp
        Download

        memory/840-530-0x0000000000400000-0x00000000004DA000-memory.dmp
        Download

        memory/840-532-0x0000000000400000-0x00000000004DA000-memory.dmp
        Download

        memory/840-394-0x0000000000400000-0x00000000004DA000-memory.dmp
        Download

        memory/840-417-0x0000000000400000-0x00000000004DA000-memory.dmp
        Download

        memory/840-426-0x0000000000400000-0x00000000004DA000-memory.dmp
        Download

        memory/840-428-0x0000000000400000-0x00000000004DA000-memory.dmp
        Download

        memory/840-461-0x0000000000400000-0x00000000004DA000-memory.dmp
        Download

        memory/840-392-0x0000000000400000-0x00000000004DA000-memory.dmp
        Download

        memory/840-531-0x0000000000400000-0x00000000004DA000-memory.dmp
        Download

        memory/4684-397-0x0000000000400000-0x0000000000619000-memory.dmp
        Download

        memory/4960-0-0x0000000000400000-0x0000000000619000-memory.dmp
        Download

        memory/4960-529-0x0000000000400000-0x0000000000619000-memory.dmp
        Download

        memory/4960-395-0x0000000000400000-0x0000000000619000-memory.dmp
        Download