Analysis

  • max time kernel
    58s
  • max time network
    41s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    23-10-2024 22:08

General

  • Target

    2c1e44e7ddf88303822b2a9e7cbfaeedbdbe3ace36ce3e028d19b68cf33c11b3.docx

  • Size

    458KB

  • MD5

    918f63aeccaa7aeef06d25c031acd858

  • SHA1

    7234c8c1a704ee3cb3f9f30f560a02fd0f5ec87c

  • SHA256

    2c1e44e7ddf88303822b2a9e7cbfaeedbdbe3ace36ce3e028d19b68cf33c11b3

  • SHA512

    aa1bbd9609e92b1e5319c28586ef2a3ce105335f457069ea6c3c05ccde8b1d6b008cdac6f6236fde74a64f3e07695a5eb2ce5041101fbdf95c55c1f885fa7f87

  • SSDEEP

    6144:zzbUb0cVLNEzYvRSPlaMXKaAi69qltTGSmNZ5m9tmYL6qoPQ7tmYB/l2mDlJjAIJ:NkF5SPMM6I9X4Xs9mrm9Bt2mhW8G0Y8

Malware Config

Extracted

Family

vipkeylogger

Credentials

Signatures

  • VIPKeylogger

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

  • Blocklisted process makes network request 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Downloads MZ/PE file
  • Abuses OpenXML format to download file from external location
  • Executes dropped EXE 2 IoCs
  • 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
  • Looks up external IP address via web service 1 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 SetThreadContext 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 5 IoCs

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

  • Office loads VBA resources, possible macro or embedded object present
  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\2c1e44e7ddf88303822b2a9e7cbfaeedbdbe3ace36ce3e028d19b68cf33c11b3.docx"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2772
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:2124
    • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
      "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
      1⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Launches Equation Editor
      • Suspicious use of WriteProcessMemory
      PID:3060
      • C:\Users\Admin\AppData\Roaming\obiddjtrh.exe
        "C:\Users\Admin\AppData\Roaming\obiddjtrh.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2424
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\obiddjtrh.exe"
          3⤵
          • Command and Scripting Interpreter: PowerShell
          • Drops file in System32 directory
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2148
        • C:\Users\Admin\AppData\Roaming\obiddjtrh.exe
          "C:\Users\Admin\AppData\Roaming\obiddjtrh.exe"
          3⤵
          • Executes dropped EXE
          • Accesses Microsoft Outlook profiles
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • outlook_office_path
          • outlook_win_path
          PID:1648

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\Office\14.0\OfficeFileCache\FSD-{1FE467FB-A141-4D39-A5DB-49CF09953C91}.FSD

      Filesize

      128KB

      MD5

      5791285cd18d9e442f201b98ecb461e0

      SHA1

      fffe7b3475b9411384272ab38da20adf2e31b222

      SHA256

      897010b9b6574b79b3f2e556f10a46b2afe9d155c30f798a346efd34c315dbb7

      SHA512

      dc778dbdc2ae53b79d79fc131e735a4e9530680efbe764abc8179913a9e20f9a080f8891c4d2f5482753894111112a5cee8968fcfbb03437f7d5c843d060723b

    • C:\Users\Admin\AppData\Local\Microsoft\Office\14.0\OfficeFileCache\FSD-{1FE467FB-A141-4D39-A5DB-49CF09953C91}.FSD

      Filesize

      128KB

      MD5

      51920b4880837021bc3121636f3ec2ac

      SHA1

      a2ac5c986a51c3022fa6111ae0c118856ea87c4a

      SHA256

      191bd1eba9f4a1a0ba514cba57cf7e12b7ea8ce9b43e8be97a2b8ac899bbfec0

      SHA512

      05aaf38a1b548c5bf2069b8275d38f5ea47c2fce52e273dcb5521537486962813a26393e9677aaef4be2417637a70b309f9fafdcadfabde4ecfb8392bb65d221

    • C:\Users\Admin\AppData\Local\Microsoft\Office\14.0\OfficeFileCache\LocalCacheFileEditManager\FSD-{BF7512C9-92C2-4519-887A-7C2C28ABB8D8}.FSD

      Filesize

      128KB

      MD5

      1634efc39f6c78623672c7e38caf96d7

      SHA1

      3e11d0bc044659cad5ab8761f60742f360c93725

      SHA256

      b2def1ff464aa3740e1a0d473128788156b34796ee4af851a36533a15cbc016a

      SHA512

      7e341a53ed6d587657a4409fc52ae0ce11175568e6627a7504859a9609a1c2fb8523457403d715295bb2480d8b83ba015335821fef0bfe0cb84a81a765c8d2b5

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\DUME8XYE\mnobizxv[1].doc

      Filesize

      670KB

      MD5

      c00a17e56e7eeaf2d72456692c36eec7

      SHA1

      72fbbce62454aaa611317d1c23a1980712d44613

      SHA256

      ee1c72ebaf43badfd7469960a19c0b2c54dc7485eff720cab2eb6bb9cf623c04

      SHA512

      ba0273b1afeb40e3c877fadc20e3ab3960e4db79272b042e500bc896d3986f607de401a2c300f97c42442e2ce4a03c241913a62439e96ff73b9795ad6527db97

    • C:\Users\Admin\AppData\Local\Temp\{1E7A0E84-33BD-4B02-83F8-192E8B45EAA3}

      Filesize

      128KB

      MD5

      471764df93ff7257c47c794c067e75c4

      SHA1

      9092ad8f5a2f3a05dd0be245d868b37bdd2da922

      SHA256

      217f10971b581c1726af6f7369abfe2b1a0be1ddc6f920e108834157f90e59df

      SHA512

      e98e4778424b6f4cfe274529908a3abb014b2d87f33e2c87c158dd531b5e907e882e4a24bee5b5b32bdb5fb95720dc4a630d2618f1cbf214c9e5d4ad2e262ec4

    • C:\Users\Admin\AppData\Local\Temp\{976B6BC7-1CF8-49FB-8420-BCA2F17A08ED}

      Filesize

      128KB

      MD5

      210ecf6225273b2a042b089ab8d87eae

      SHA1

      41f847b5cd033781aeda52a28a3ad3abdb8fc6a8

      SHA256

      eabe0cafadbb7c555b9eeb30a0a6ea5e8589210c25513f1525506deaa3e37a73

      SHA512

      31c57607064f7071a799d8fa990927aa9f9732810612a3013076661da53c0f520e0c08f1c00a366d5e4a0db651998fd2013aabd3d12d7d9028865807a3450211

    • C:\Users\Admin\AppData\Roaming\Microsoft\UProof\ExcludeDictionaryEN0409.lex

      Filesize

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

    • \Users\Admin\AppData\Roaming\obiddjtrh.exe

      Filesize

      759KB

      MD5

      7578316e563e8a4a2983ae041a5fff39

      SHA1

      fa5a6777784f272b191803d03a49dfe40354bcf2

      SHA256

      2b845ff4c5ee973861ccb905e73fed0bbd46ce5e311fc8910d188ec839226f58

      SHA512

      225fa056dff9c59915fbfe593d3d336c133eeab6be80f48de976f8d14cd773bde21716f489b45c007310da6eb61c9bd6681a7ec0a80559b246af07a1346dc9ba

    • memory/1648-110-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/1648-120-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/1648-108-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/1648-112-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/1648-114-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/1648-116-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/1648-117-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/1648-119-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/2424-99-0x00000000003F0000-0x000000000040E000-memory.dmp

      Filesize

      120KB

    • memory/2424-107-0x0000000005F00000-0x0000000005F8C000-memory.dmp

      Filesize

      560KB

    • memory/2424-98-0x00000000002D0000-0x0000000000392000-memory.dmp

      Filesize

      776KB

    • memory/2772-0-0x000000002FE71000-0x000000002FE72000-memory.dmp

      Filesize

      4KB

    • memory/2772-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2772-2-0x00000000719CD000-0x00000000719D8000-memory.dmp

      Filesize

      44KB

    • memory/2772-97-0x00000000719CD000-0x00000000719D8000-memory.dmp

      Filesize

      44KB