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Overview

overview

10

Static

static

3

100beb3f36...8c.exe

windows7-x64

10

100beb3f36...8c.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    170s
  • max time network
    168s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/12/2023, 05:31

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General

  • Target

    100beb3f361fab2c438cfba6d91d838c.exe

  • Size

    264KB

  • MD5

    100beb3f361fab2c438cfba6d91d838c

  • SHA1

    91c7c07b680a2bb99ffe06ef51fd31daff94e0b7

  • SHA256

    60bc8394bb6191bcfddd2cd4a5e83a32ad6310d2daf73b360258ba456efd575d

  • SHA512

    c1bb40e7265269f9f75d61bd1965ffec4861819f5703ecc5c7222fc8d42bad38915c27bf35f26f6c80ff4bf3623f5ec7cce69c41fbfcfd2eaa458d2e77be9ebf

  • SSDEEP

    1536:SYXRah9nifQfx2ra1+8R0/+n4omi2DZXx7wDcQsau309hV/BkmpzA3u806jQ:SU1fQfv0Y4JH30x/ZcQ

Score
10/10
evasionpersistencetrojanupx

Malware Config

Signatures

  • Modifies security service 2 TTPs 1 IoCs
    evasion
  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
    evasion
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
    evasion
  • UAC bypass 3 TTPs 3 IoCs
    evasiontrojan
  • Windows security bypass 2 TTPs 1 IoCs
    evasiontrojan
  • Drops file in Drivers directory 1 IoCs
  • Sets file execution options in registry 2 TTPs 64 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
  • UPX packed file 4 IoCs

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

    upx
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Looks up external IP address via web service 3 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 10 IoCs
    adwarespyware
  • Modifies Internet Explorer start page 1 TTPs 2 IoCs
    stealer
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\100beb3f361fab2c438cfba6d91d838c.exe
    "C:\Users\Admin\AppData\Local\Temp\100beb3f361fab2c438cfba6d91d838c.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3756
    • C:\Users\Admin\Admin1\winlogon.exe
      "C:\Users\Admin\Admin1\winlogon.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3820
      • C:\Windows\SysWOW64\svchost.exe
        0
        3⤵
        • Modifies security service
        • Modifies visibility of file extensions in Explorer
        • Modifies visiblity of hidden/system files in Explorer
        • UAC bypass
        • Windows security bypass
        • Drops file in Drivers directory
        • Sets file execution options in registry
        • Adds Run key to start application
        • Modifies Internet Explorer settings
        • Modifies Internet Explorer start page
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:1808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Impair Defenses

2
T1562

Disable or Modify Tools

2
T1562.001

Modify Registry

9
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\Admin1\winlogon.exe
    Filesize

    264KB

    MD5

    100beb3f361fab2c438cfba6d91d838c

    SHA1

    91c7c07b680a2bb99ffe06ef51fd31daff94e0b7

    SHA256

    60bc8394bb6191bcfddd2cd4a5e83a32ad6310d2daf73b360258ba456efd575d

    SHA512

    c1bb40e7265269f9f75d61bd1965ffec4861819f5703ecc5c7222fc8d42bad38915c27bf35f26f6c80ff4bf3623f5ec7cce69c41fbfcfd2eaa458d2e77be9ebf

    Download Submit

  • memory/1808-18-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

    Download

  • memory/1808-20-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

    Download

  • memory/1808-21-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

    Download

  • memory/1808-30-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

    Download

  • memory/3756-0-0x0000000000400000-0x0000000000443000-memory.dmp

    Filesize

    268KB

    Download

  • memory/3756-15-0x0000000000400000-0x0000000000443000-memory.dmp

    Filesize

    268KB

    Download

  • memory/3820-16-0x0000000000400000-0x0000000000443000-memory.dmp

    Filesize

    268KB

    Download