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Analysis

  • max time kernel
    91s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21/05/2022, 12:27

General

  • Target

    IDBI BANK JUNE 2020 Statement.exe

  • Size

    2.1MB

  • MD5

    c94c6c92d872dcccb6b7674ae5edfa4f

  • SHA1

    5ae31de995c9057cd455840a0af9c5fadde86063

  • SHA256

    cc976126805d59f17a49219bf29d4de6707a8972ef94e04f1f9d0e26746854e7

  • SHA512

    c97be462f107cb5ee2bb0d9a00785e459f56baf0c00b31cc01aa2dda22d00223d7cabcf6a07276eed654cb85ffbdf03e7bfb1a4eb09917d40bd331023c500c1b

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\781F780B4E\Log.txt

Family

masslogger

Ransom Note
################################################################# MassLogger v1.3.3.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.51 Location: United States OS: Microsoft Windows 10 Pro64bit CPU: Intel Core Processor (Broadwell) GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 1:09:48 PM MassLogger Started: 5/21/2022 1:09:45 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe As Administrator: True

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Dmacdavid

Signatures

  • MassLogger

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

  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

  • Executes dropped EXE 1 IoCs
  • 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 18 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\IDBI BANK JUNE 2020 Statement.exe
    "C:\Users\Admin\AppData\Local\Temp\IDBI BANK JUNE 2020 Statement.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3560
    • C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
      "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
      2⤵
      • Executes dropped EXE
      • 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:2764

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe

    Filesize

    41KB

    MD5

    5d4073b2eb6d217c19f2b22f21bf8d57

    SHA1

    f0209900fbf08d004b886a0b3ba33ea2b0bf9da8

    SHA256

    ac1a3f21fcc88f9cee7bf51581eafba24cc76c924f0821deb2afdf1080ddf3d3

    SHA512

    9ac94880684933ba3407cdc135abc3047543436567af14cd9269c4adc5a6535db7b867d6de0d6238a21b94e69f9890dbb5739155871a624520623a7e56872159

  • C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe

    Filesize

    41KB

    MD5

    5d4073b2eb6d217c19f2b22f21bf8d57

    SHA1

    f0209900fbf08d004b886a0b3ba33ea2b0bf9da8

    SHA256

    ac1a3f21fcc88f9cee7bf51581eafba24cc76c924f0821deb2afdf1080ddf3d3

    SHA512

    9ac94880684933ba3407cdc135abc3047543436567af14cd9269c4adc5a6535db7b867d6de0d6238a21b94e69f9890dbb5739155871a624520623a7e56872159

  • memory/2764-166-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-168-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-170-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-136-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-646-0x00000000082F0000-0x000000000838C000-memory.dmp

    Filesize

    624KB

  • memory/2764-645-0x0000000008200000-0x0000000008250000-memory.dmp

    Filesize

    320KB

  • memory/2764-140-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-142-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-144-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-146-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-148-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-150-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-152-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-154-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-156-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-158-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-162-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-160-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-164-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-644-0x0000000006CB0000-0x0000000006CBA000-memory.dmp

    Filesize

    40KB

  • memory/2764-643-0x00000000064B0000-0x0000000006516000-memory.dmp

    Filesize

    408KB

  • memory/2764-200-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-172-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-174-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-176-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-178-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-180-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-182-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-184-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-186-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-188-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-190-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-192-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-194-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-196-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/2764-198-0x0000000000400000-0x0000000000546000-memory.dmp

    Filesize

    1.3MB

  • memory/3560-134-0x0000000006EF0000-0x0000000006F12000-memory.dmp

    Filesize

    136KB

  • memory/3560-130-0x0000000000240000-0x0000000000460000-memory.dmp

    Filesize

    2.1MB

  • memory/3560-133-0x00000000050C0000-0x0000000005104000-memory.dmp

    Filesize

    272KB

  • memory/3560-131-0x0000000005350000-0x00000000058F4000-memory.dmp

    Filesize

    5.6MB

  • memory/3560-132-0x0000000004E40000-0x0000000004ED2000-memory.dmp

    Filesize

    584KB