Analysis

  • max time kernel
    149s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250410-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250410-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/04/2025, 13:10

General

  • Target

    315176345_2025-04-13-5522441.exe

  • Size

    645KB

  • MD5

    619e2fa8cf181dcce7df16e5fee4065a

  • SHA1

    7c72e48804fbd2bd8b4f28e69f916d910afd5cc7

  • SHA256

    8e6c5f4651741758b6b141da89e4c27fa244eccce3d9beaf4b1ae0e48f13d5a0

  • SHA512

    9840537924bf3858b21771945798f49b2e907b8efee4fe4e7ae5a0762c5ff451543b95d9750e31d0203ec485da45535c03d8cfbeba88ca70533ddb19ac4ad303

  • SSDEEP

    12288:u+q6+b0201LM+OryHE3WrRMnSUO8nmCeud3f2KHTlt1A:u+qlA20WyGEyltnmCe8fJ31A

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot7940557245:AAGEVNBuuGDhlbTi3PPq7irUInwmQ9JgMqQ/sendMessage?chat_id=7590946867

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.

  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 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\315176345_2025-04-13-5522441.exe
    "C:\Users\Admin\AppData\Local\Temp\315176345_2025-04-13-5522441.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:3284
    • C:\Users\Admin\AppData\Local\Temp\315176345_2025-04-13-5522441.exe
      "C:\Users\Admin\AppData\Local\Temp\315176345_2025-04-13-5522441.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:4452

Network

MITRE ATT&CK Enterprise v16

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsg886F.tmp

    Filesize

    7B

    MD5

    67cfa7364c4cf265b047d87ff2e673ae

    SHA1

    56e27889277981a9b63fcf5b218744a125bbc2fa

    SHA256

    639b68bd180b47d542dd001d03557ee2d5b3065c3c783143bc9fb548f3fd7713

    SHA512

    17f28a136b20b89e9c3a418b08fd8e6fcaac960872dc33b2481af2d872efc44228f420759c57724f5d953c7ba98f2283e2acc7dfe5a58cbf719c6480ec7a648b

  • C:\Users\Admin\AppData\Local\Temp\nsg886F.tmp

    Filesize

    56B

    MD5

    29a28ce2b1e65d140f33352d68603e6f

    SHA1

    6c018cc95d5c6145b253dc0ecf7788ba60a186e8

    SHA256

    703e34699df3afe05877ed93aa2f8d37e2868411d55397a921fb45a0509816a2

    SHA512

    4285dd432573efdabf9e11d787a75db6eea018c7c427237012e3e0b89a589c1f79c5fb2f437f5d8f5d4af404f8dd72f7d14cc6012b877550f3291f325a0fe1d3

  • C:\Users\Admin\AppData\Local\Temp\nsl87EE.tmp

    Filesize

    74B

    MD5

    16d513397f3c1f8334e8f3e4fc49828f

    SHA1

    4ee15afca81ca6a13af4e38240099b730d6931f0

    SHA256

    d3c781a1855c8a70f5aca88d9e2c92afffa80541334731f62caa9494aa8a0c36

    SHA512

    4a350b790fdd2fe957e9ab48d5969b217ab19fc7f93f3774f1121a5f140ff9a9eaaa8fa30e06a9ef40ad776e698c2e65a05323c3adf84271da1716e75f5183c3

  • C:\Users\Admin\AppData\Local\Temp\nsl883F.tmp

    Filesize

    60B

    MD5

    6003c892b3f3e6857b44804bb171e32b

    SHA1

    e5388e8d8163b149dcc9c496a3bf2a4a23a0ad77

    SHA256

    6aca13da7c0fef80812c437ed6ebfc24e9ab6dc53f36b8f42c6b7071f84e3ca8

    SHA512

    e935627de21df33244c6aed2fdd8e2d8750bdff40574c1063c02334e2059649b7338e1ff2732efb8b0b0110e53e0a67c25390ee8de314b601aa13e37095cf4c7

  • C:\Users\Admin\AppData\Local\Temp\nsq880E.tmp\System.dll

    Filesize

    12KB

    MD5

    9b38a1b07a0ebc5c7e59e63346ecc2db

    SHA1

    97332a2ffcf12a3e3f27e7c05213b5d7faa13735

    SHA256

    8b4c47c4cf5e76ec57dd5a050d5acd832a0d532ee875d7b44f6cdaf68f90d37c

    SHA512

    26e77f8e10f6d8693c92bd036b53a3f6e0c523090ef8dfe479815f556ecd2b57fc90ce9f7cceebe70460d464decb27ad1fe240819fd56997764e96506b6a439c

  • C:\Users\Admin\AppData\Local\Temp\nsr8999.tmp

    Filesize

    13B

    MD5

    f6dd1b23c7a68545a2c2dbf678cf8683

    SHA1

    43eeed66236b1b5868671abdc138051daa64fd16

    SHA256

    38e0646749072dd0bfa54e9cc2884b454d7ea22b08d816599d86f7f162e1c7e8

    SHA512

    a23ad3fc2ca9259a0641bc445eb71848c5e824694f844dea4d35d985aa65fa6a882af3d4f873042df9da564e0ec4afd0ad2bc6911c00a70f9e82171d53fb76d2

  • C:\Users\Admin\AppData\Local\Temp\nsr8999.tmp

    Filesize

    30B

    MD5

    f15bfdebb2df02d02c8491bde1b4e9bd

    SHA1

    93bd46f57c3316c27cad2605ddf81d6c0bde9301

    SHA256

    c87f2ff45bb530577fb8856df1760edaf1060ae4ee2934b17fdd21b7d116f043

    SHA512

    1757ed4ae4d47d0c839511c18be5d75796224d4a3049e2d8853650ace2c5057c42040de6450bf90dd4969862e9ebb420cd8a34f8dd9c970779ed2e5459e8f2f1

  • C:\Users\Admin\AppData\Local\Temp\nsv882E.tmp

    Filesize

    52B

    MD5

    5d04a35d3950677049c7a0cf17e37125

    SHA1

    cafdd49a953864f83d387774b39b2657a253470f

    SHA256

    a9493973dd293917f3ebb932ab255f8cac40121707548de100d5969956bb1266

    SHA512

    c7b1afd95299c0712bdbc67f9d2714926d6ec9f71909af615affc400d8d2216ab76f6ac35057088836435de36e919507e1b25be87b07c911083f964eb67e003b

  • memory/3284-566-0x0000000077061000-0x0000000077181000-memory.dmp

    Filesize

    1.1MB

  • memory/3284-567-0x0000000077061000-0x0000000077181000-memory.dmp

    Filesize

    1.1MB

  • memory/3284-568-0x0000000073EC5000-0x0000000073EC6000-memory.dmp

    Filesize

    4KB

  • memory/4452-580-0x0000000000460000-0x00000000016B4000-memory.dmp

    Filesize

    18.3MB

  • memory/4452-586-0x0000000038740000-0x0000000038CE4000-memory.dmp

    Filesize

    5.6MB

  • memory/4452-571-0x0000000077105000-0x0000000077106000-memory.dmp

    Filesize

    4KB

  • memory/4452-569-0x00000000016C0000-0x0000000005982000-memory.dmp

    Filesize

    66.8MB

  • memory/4452-582-0x0000000077061000-0x0000000077181000-memory.dmp

    Filesize

    1.1MB

  • memory/4452-581-0x0000000000460000-0x00000000016B4000-memory.dmp

    Filesize

    18.3MB

  • memory/4452-584-0x0000000071F5E000-0x0000000071F5F000-memory.dmp

    Filesize

    4KB

  • memory/4452-583-0x00000000016C0000-0x0000000005982000-memory.dmp

    Filesize

    66.8MB

  • memory/4452-585-0x0000000000460000-0x00000000004AA000-memory.dmp

    Filesize

    296KB

  • memory/4452-570-0x00000000770E8000-0x00000000770E9000-memory.dmp

    Filesize

    4KB

  • memory/4452-587-0x0000000038CF0000-0x0000000038D8C000-memory.dmp

    Filesize

    624KB

  • memory/4452-588-0x0000000071F50000-0x0000000072700000-memory.dmp

    Filesize

    7.7MB

  • memory/4452-590-0x0000000071F5E000-0x0000000071F5F000-memory.dmp

    Filesize

    4KB

  • memory/4452-591-0x0000000071F50000-0x0000000072700000-memory.dmp

    Filesize

    7.7MB

  • memory/4452-592-0x00000000392F0000-0x00000000394B2000-memory.dmp

    Filesize

    1.8MB

  • memory/4452-593-0x00000000394D0000-0x0000000039520000-memory.dmp

    Filesize

    320KB

  • memory/4452-594-0x00000000396E0000-0x0000000039C0C000-memory.dmp

    Filesize

    5.2MB

  • memory/4452-596-0x0000000039C70000-0x0000000039D02000-memory.dmp

    Filesize

    584KB

  • memory/4452-597-0x0000000039D50000-0x0000000039D5A000-memory.dmp

    Filesize

    40KB