Overview

overview

10

Static

static

Purchase O...in.exe

windows7_x64

10

Purchase O...in.exe

windows10_x64

10

Analysis

  • max time kernel
    56s
  • max time network
    148s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • 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\1A60FBA9DF\Log.txt

Family

masslogger

Ransom Note
################################################################# MassLogger v1.3.8.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.13 Location: United States Windows OS: Microsoft Windows 10 Enterprise64bit Windows Serial Key: W269N-WFGWX-YVC9B-4J6C9-T83GX CPU: Persocon Processor 2.5+ GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 7/1/2021 6:40:40 AM MassLogger Started: 7/1/2021 6:40:35 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 2 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 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:992
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XxGCOrqT" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF1B8.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3232
    • 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:508

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\Microsoft\CLR_v4.0_32\UsageLogs\Purchase Order.bin.exe.log
    MD5

    36946c53599e09d856dccb964b642e38

    SHA1

    e39fefd5af1512b30e17df1856742b73dd07fdae

    SHA256

    3f696abfa1fe4f80aa4c525fb471836038bef2ac60f2b2f0b7dd6023cfabe105

    SHA512

    57703125cf5b485a39f9316a9a9ec36a0bc8ada069c23fa6b4f4dd576b2806a3a770557d73643bed22b2026e186b6fddb98287105c61a69253c9eb2ee5346535

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\tmpF1B8.tmp
    MD5

    1aceb2edbf4da9f7f5954b8e07f49cd7

    SHA1

    2624dc2c1e0375839b8c5adfba553457ba056972

    SHA256

    6118a6133a8d991fa5527a641799324b12b725bfd3da704f617cbf53b672b0d9

    SHA512

    4a76ff37e5f39a24f82b77d9c3356930cda6c5e35db459b7e4d7871392b3c25549f9fe963d358af4a1212869ccc714bc5c1a9fb2d7698f3e2dbcd4e0605b3117

    Download Submit
  • memory/508-138-0x00000000083B0000-0x00000000083B1000-memory.dmp
    Filesize

    4KB

    Download
  • memory/508-137-0x0000000006F50000-0x0000000006F51000-memory.dmp
    Filesize

    4KB

    Download
  • memory/508-136-0x0000000005263000-0x0000000005265000-memory.dmp
    Filesize

    8KB

    Download
  • memory/508-133-0x0000000005260000-0x0000000005261000-memory.dmp
    Filesize

    4KB

    Download
  • memory/508-132-0x0000000005210000-0x000000000524E000-memory.dmp
    Filesize

    248KB

    Download
  • memory/508-126-0x00000000004A2B2E-mapping.dmp
    Download
  • memory/508-125-0x0000000000400000-0x00000000004A8000-memory.dmp
    Filesize

    672KB

    Download
  • memory/992-119-0x0000000004B90000-0x0000000004B91000-memory.dmp
    Filesize

    4KB

    Download
  • memory/992-122-0x00000000054C0000-0x00000000054C1000-memory.dmp
    Filesize

    4KB

    Download
  • memory/992-121-0x0000000006DB0000-0x0000000006DB1000-memory.dmp
    Filesize

    4KB

    Download
  • memory/992-120-0x0000000006800000-0x00000000068A9000-memory.dmp
    Filesize

    676KB

    Download
  • memory/992-114-0x0000000000090000-0x0000000000091000-memory.dmp
    Filesize

    4KB

    Download
  • memory/992-118-0x0000000004F80000-0x0000000004F81000-memory.dmp
    Filesize

    4KB

    Download
  • memory/992-117-0x0000000002480000-0x0000000002482000-memory.dmp
    Filesize

    8KB

    Download
  • memory/992-116-0x0000000004E40000-0x0000000004E41000-memory.dmp
    Filesize

    4KB

    Download
  • memory/3232-123-0x0000000000000000-mapping.dmp
    Download