Analysis

  • max time kernel
    148s
  • max time network
    132s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-02-2025 22:05

General

  • Target

    rJustificante67.exe

  • Size

    1001KB

  • MD5

    96bc48e7cc38d731e7e2c25f3f80a88e

  • SHA1

    bd30afd2f438928b3cb98d9f74766f1e401db091

  • SHA256

    79714172680d9fd5b1d49fc518abe9cef9200194a04b6611466beccb28c31728

  • SHA512

    7d71064359f17cae6128db87fdc9a743368b441310d5118734e0ba2a44f5673aeb0f93ea129faa51c6f61f36f135a38f2d90dc550708e87bec67131e4011f908

  • SSDEEP

    24576:IGLEfEEQyQpBGB59WIMJfEKwqQnc9V4+QA3plULISW1D:1+3isWppTBEk3AAD

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot7809339088:AAEUtMa_u0dd_zBfAWh2Ah2az4h6hNs_Wg0/sendMessage?chat_id=7618581100

Signatures

  • Guloader family
  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • VIPKeylogger

    VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.

  • Vipkeylogger family
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 3 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Looks up external IP address via web service 3 IoCs

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

  • Drops file in System32 directory 1 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\rJustificante67.exe
    "C:\Users\Admin\AppData\Local\Temp\rJustificante67.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:3592
    • C:\Users\Admin\AppData\Local\Temp\rJustificante67.exe
      "C:\Users\Admin\AppData\Local\Temp\rJustificante67.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2460

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\Microsoft\Windows\Templates\dinosaurusserne.lnk

    Filesize

    1KB

    MD5

    7dc743a09f1357e40050799508d677a2

    SHA1

    3b0b8846df2db39c5c7d15bb3fa46ecfd550f69f

    SHA256

    b6b769df7970f1fd9a2faefce4243f997a2edd47c873e97d2a9287b43159369e

    SHA512

    008882e11407bd5d8fe41652ce1a5bed4f7f34d1d4a7d6e75ebcd809ee1e707536b4b39e717755e9a8f7c575f7274451d0a6c935f82a617a1e79343a422a2e6d

  • C:\Users\Admin\AppData\Local\Temp\nsyA848.tmp\System.dll

    Filesize

    11KB

    MD5

    b853d5d2361ade731e33e882707efc34

    SHA1

    c58b1aeabdf1cbb8334ef8797e7aceaa7a1cb6be

    SHA256

    f0cd96e0b6e40f92ad1aa0efacde833bae807b92fca19bf062c1cf8acf29484b

    SHA512

    8ea31d82ffa6f58dab5632fe72690d3a6db0be65aec85fc8a1f71626773c0974dcebefae17bcf67c4c56ef442545e985eea0b348ff6e4fc36740640092b08d69

  • memory/2460-335-0x0000000071F8E000-0x0000000071F8F000-memory.dmp

    Filesize

    4KB

  • memory/2460-346-0x0000000071F80000-0x0000000072730000-memory.dmp

    Filesize

    7.7MB

  • memory/2460-349-0x0000000032D30000-0x0000000032DC2000-memory.dmp

    Filesize

    584KB

  • memory/2460-315-0x00000000016E0000-0x0000000002569000-memory.dmp

    Filesize

    14.5MB

  • memory/2460-316-0x00000000016E0000-0x0000000002569000-memory.dmp

    Filesize

    14.5MB

  • memory/2460-317-0x0000000077298000-0x0000000077299000-memory.dmp

    Filesize

    4KB

  • memory/2460-318-0x00000000772B5000-0x00000000772B6000-memory.dmp

    Filesize

    4KB

  • memory/2460-331-0x00000000016E0000-0x0000000002569000-memory.dmp

    Filesize

    14.5MB

  • memory/2460-334-0x0000000077211000-0x0000000077331000-memory.dmp

    Filesize

    1.1MB

  • memory/2460-333-0x00000000016E0000-0x0000000002569000-memory.dmp

    Filesize

    14.5MB

  • memory/2460-350-0x0000000032DF0000-0x0000000032DFA000-memory.dmp

    Filesize

    40KB

  • memory/2460-332-0x0000000000480000-0x00000000016D4000-memory.dmp

    Filesize

    18.3MB

  • memory/2460-338-0x0000000035370000-0x000000003540C000-memory.dmp

    Filesize

    624KB

  • memory/2460-337-0x0000000035430000-0x00000000359D4000-memory.dmp

    Filesize

    5.6MB

  • memory/2460-336-0x0000000000480000-0x00000000004C8000-memory.dmp

    Filesize

    288KB

  • memory/2460-339-0x0000000077211000-0x0000000077331000-memory.dmp

    Filesize

    1.1MB

  • memory/2460-340-0x0000000071F80000-0x0000000072730000-memory.dmp

    Filesize

    7.7MB

  • memory/2460-342-0x0000000071F8E000-0x0000000071F8F000-memory.dmp

    Filesize

    4KB

  • memory/2460-343-0x0000000035EC0000-0x0000000036082000-memory.dmp

    Filesize

    1.8MB

  • memory/2460-344-0x00000000360B0000-0x0000000036100000-memory.dmp

    Filesize

    320KB

  • memory/2460-345-0x0000000036190000-0x00000000366BC000-memory.dmp

    Filesize

    5.2MB

  • memory/3592-313-0x0000000077211000-0x0000000077331000-memory.dmp

    Filesize

    1.1MB

  • memory/3592-314-0x0000000010004000-0x0000000010005000-memory.dmp

    Filesize

    4KB

  • memory/3592-312-0x0000000003180000-0x0000000004009000-memory.dmp

    Filesize

    14.5MB