Analysis

  • max time kernel
    96s
  • max time network
    99s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 18:54

General

  • Target

    Company profile.exe

  • Size

    716KB

  • MD5

    16f704634dd7855cf929214dfaeaa9e8

  • SHA1

    e7af55b75a431c30265b7a63162611c44cfef296

  • SHA256

    e4e29eef439bf36287f9dc660155697cc2d227fbccd34d95a8b59c5451ba5287

  • SHA512

    8472440832759e87529151606aecc9cf4696f51c32cf4b9d6b338283bc6c937b0755dd945faa73baf36df1786030042a97883178f0d50db1fa57d160b12761a9

Malware Config

Signatures

  • MassLogger

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

  • MassLogger Main Payload 32 IoCs
  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 15 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Company profile.exe
    "C:\Users\Admin\AppData\Local\Temp\Company profile.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2040
    • C:\Users\Admin\AppData\Local\Temp\Company profile.exe
      "C:\Users\Admin\AppData\Local\Temp\Company profile.exe"
      2⤵
      • Checks computer location settings
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1692

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1692-84-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-61-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-572-0x0000000004590000-0x00000000045D4000-memory.dmp
    Filesize

    272KB

  • memory/1692-122-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-120-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-88-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-60-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-86-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-63-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-64-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-65-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-66-0x00000000004A15EE-mapping.dmp
  • memory/1692-68-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-70-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-72-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-74-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-76-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-78-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-80-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-82-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-118-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-116-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-114-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-90-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-92-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-94-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-96-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-98-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-100-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-102-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-104-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-106-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-108-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-110-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/1692-112-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/2040-59-0x0000000000520000-0x0000000000532000-memory.dmp
    Filesize

    72KB

  • memory/2040-55-0x0000000075FE1000-0x0000000075FE3000-memory.dmp
    Filesize

    8KB

  • memory/2040-57-0x0000000000E30000-0x0000000000ED2000-memory.dmp
    Filesize

    648KB

  • memory/2040-58-0x0000000000490000-0x00000000004A6000-memory.dmp
    Filesize

    88KB

  • memory/2040-54-0x0000000000ED0000-0x0000000000F8A000-memory.dmp
    Filesize

    744KB

  • memory/2040-56-0x0000000000470000-0x0000000000478000-memory.dmp
    Filesize

    32KB