Overview

overview

10

Static

static

Purchase O...in.exe

windows7_x64

10

Purchase O...in.exe

windows10_x64

10

Analysis

  • max time kernel
    119s
  • max time network
    182s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    01-07-2021 04:36

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General

  • Target

    Purchase Order.bin.exe

  • Size

    796KB

  • MD5

    a055b63f32102d1b5ba0d7064d75526b

  • SHA1

    6032e66d65cf7992162047780ccadbee38751dea

  • SHA256

    6ad5aee17e0fa5baa1a5ba9b0375faa8e98ff72dd4a79e5fb8209237167e119d

  • SHA512

    45b6b104f848a993cea0854ee65fc9a88b5cac379db492f7c850dfa787efa9c8d82a403c7d868683303b6e7e5e4068a1eea830330359e633a9f3e7c2e1b37024

Score
10/10
massloggerevasionransomwarerezer0spywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\5089EDCC92\Log.txt

Family

masslogger

Ransom Note
################################################################# MassLogger v1.3.8.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.51 Location: United States Windows OS: Microsoft Windows 7 Ultimate 64bit Windows Serial Key: HYF8J-CVRMY-CM74G-RPHKF-PW487 CPU: Persocon Processor 2.5+ GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 7/1/2021 4:34:04 AM MassLogger Started: 7/1/2021 4:33:58 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\Purchase Order.bin.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Signatures

  • MassLogger

    Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

    stealerspywaremasslogger
  • MassLogger Main Payload 3 IoCs
  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

  • Looks for VirtualBox Guest Additions in registry 2 TTPs
    evasion
  • ReZer0 packer 1 IoCs

    Detects ReZer0, a packer with multiple versions used in various campaigns.

    rezer0
  • Looks for VMWare Tools registry key 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.

  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Looks up external IP address via web service 1 IoCs

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

  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

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

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Purchase Order.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase Order.bin.exe"
    1⤵
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1732
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XxGCOrqT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp676.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1480
    • C:\Users\Admin\AppData\Local\Temp\Purchase Order.bin.exe
      "{path}"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1556

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp676.tmp
    MD5

    0592b7de66311f0c8757b189c3909882

    SHA1

    9fde8074dec59b0bd2fa743222263b5e48fca270

    SHA256

    1e03631b904b995291c67d2f6b951b7e784adbe748410bc7a19ed24f78db7e90

    SHA512

    e722329de53a29d679e08a178fe81499fb5c8a7c90843336c0ffb7fa5c6a9d182e92e034637426487a7814bb93c48b9b57703c12994227a5c6e599999557990e

    Download Submit
  • memory/1480-65-0x0000000000000000-mapping.dmp
    Download
  • memory/1556-71-0x00000000001E0000-0x000000000021E000-memory.dmp
    Filesize

    248KB

    Download
  • memory/1556-67-0x0000000000400000-0x00000000004A8000-memory.dmp
    Filesize

    672KB

    Download
  • memory/1556-68-0x00000000004A2B2E-mapping.dmp
    Download
  • memory/1556-69-0x0000000000400000-0x00000000004A8000-memory.dmp
    Filesize

    672KB

    Download
  • memory/1556-72-0x0000000004E20000-0x0000000004E21000-memory.dmp
    Filesize

    4KB

    Download
  • memory/1556-73-0x0000000004E25000-0x0000000004E36000-memory.dmp
    Filesize

    68KB

    Download
  • memory/1556-74-0x0000000004E36000-0x0000000004E37000-memory.dmp
    Filesize

    4KB

    Download
  • memory/1732-64-0x00000000007E0000-0x0000000000889000-memory.dmp
    Filesize

    676KB

    Download
  • memory/1732-63-0x0000000004A50000-0x0000000004A51000-memory.dmp
    Filesize

    4KB

    Download
  • memory/1732-62-0x0000000000200000-0x0000000000202000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1732-60-0x0000000000900000-0x0000000000901000-memory.dmp
    Filesize

    4KB

    Download