Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-12-2024 13:06

General

  • Target

    Hesap_Hareketleri_09122024_html.exe

  • Size

    978KB

  • MD5

    a1d6c4ee5e1bf8e8e8e335e25e3cb4ef

  • SHA1

    d55f64167243a1211ad7b3f51174c70f2d3d1c3d

  • SHA256

    0b0e33a49e209932b6fa85be230050e28ed46e35129a3b4b0b6f782ac4849f21

  • SHA512

    be8182bf4b9bef516dc113b05b2c3d0f834c1d8bb40f266da9948e23339ea94a2c63484f335da46410d5e6e291f997a2e9e2dfc32da73cd51db0fb053fea44c8

  • SSDEEP

    12288:Kfe0GVO35OOvzI/wDadTZoieenOIbgIC+Ukq09xZmFP85h7ScC3:Kff3c4uWadT+i3/bTUkqc8P8zSc

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.

  • Vipkeylogger family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

  • Suspicious use of SetThreadContext 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.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Hesap_Hareketleri_09122024_html.exe
    "C:\Users\Admin\AppData\Local\Temp\Hesap_Hareketleri_09122024_html.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1516
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Hesap_Hareketleri_09122024_html.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3244
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\EfgRyiVrT.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5012
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EfgRyiVrT" /XML "C:\Users\Admin\AppData\Local\Temp\tmpED9C.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1828
    • C:\Users\Admin\AppData\Local\Temp\Hesap_Hareketleri_09122024_html.exe
      "C:\Users\Admin\AppData\Local\Temp\Hesap_Hareketleri_09122024_html.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2204

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

    Filesize

    2KB

    MD5

    968cb9309758126772781b83adb8a28f

    SHA1

    8da30e71accf186b2ba11da1797cf67f8f78b47c

    SHA256

    92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

    SHA512

    4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    18KB

    MD5

    9a6053be42d5a2f7b809c8c2f294a609

    SHA1

    0309e4bf027d0bf34019a8e606a7462b8f266e79

    SHA256

    5e2e401e8b4fba9011ece9ff496631db37206efb6bf344a3df4d8fb474a5a4e5

    SHA512

    8e2f7c45e971b76c39fd022debd2b795a70f3f462360942c4ab28b64e94c9f6c03c26352b9c82650c82a39233a02d6f932a55e45b10eedaa56f6f2865ff3b729

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xiwriepv.rlr.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpED9C.tmp

    Filesize

    1KB

    MD5

    74cc5b4f83d207502525ff4202d62292

    SHA1

    856c66569da1795025db74c83b9d31d2c2180fe6

    SHA256

    074e62788101d0c770f5278d34618dc155d897e2a21aa775694608caabc464a5

    SHA512

    2099d0bb071f72f84d742ddf89adcdb604de672c1fa826d5f87eb7470506ccfcff1a5125154869d54d09d7b151fe03b76e958ef249c3ac436d64749a22817dfa

  • memory/1516-8-0x00000000752D0000-0x0000000075A80000-memory.dmp

    Filesize

    7.7MB

  • memory/1516-4-0x00000000752D0000-0x0000000075A80000-memory.dmp

    Filesize

    7.7MB

  • memory/1516-6-0x0000000004F40000-0x0000000004F5E000-memory.dmp

    Filesize

    120KB

  • memory/1516-7-0x00000000752DE000-0x00000000752DF000-memory.dmp

    Filesize

    4KB

  • memory/1516-38-0x00000000752D0000-0x0000000075A80000-memory.dmp

    Filesize

    7.7MB

  • memory/1516-9-0x0000000007C00000-0x0000000007C8E000-memory.dmp

    Filesize

    568KB

  • memory/1516-10-0x000000000A3A0000-0x000000000A43C000-memory.dmp

    Filesize

    624KB

  • memory/1516-1-0x00000000000E0000-0x00000000001DA000-memory.dmp

    Filesize

    1000KB

  • memory/1516-0-0x00000000752DE000-0x00000000752DF000-memory.dmp

    Filesize

    4KB

  • memory/1516-2-0x0000000004FB0000-0x0000000005554000-memory.dmp

    Filesize

    5.6MB

  • memory/1516-5-0x0000000004B40000-0x0000000004B4A000-memory.dmp

    Filesize

    40KB

  • memory/1516-3-0x0000000004AA0000-0x0000000004B32000-memory.dmp

    Filesize

    584KB

  • memory/2204-89-0x0000000006770000-0x0000000006932000-memory.dmp

    Filesize

    1.8MB

  • memory/2204-24-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2204-90-0x00000000065F0000-0x0000000006640000-memory.dmp

    Filesize

    320KB

  • memory/3244-15-0x0000000000A80000-0x0000000000AB6000-memory.dmp

    Filesize

    216KB

  • memory/3244-65-0x0000000006F40000-0x0000000006F4A000-memory.dmp

    Filesize

    40KB

  • memory/3244-21-0x0000000004CE0000-0x0000000004D02000-memory.dmp

    Filesize

    136KB

  • memory/3244-16-0x00000000752D0000-0x0000000075A80000-memory.dmp

    Filesize

    7.7MB

  • memory/3244-37-0x00000000055E0000-0x0000000005934000-memory.dmp

    Filesize

    3.3MB

  • memory/3244-23-0x0000000005570000-0x00000000055D6000-memory.dmp

    Filesize

    408KB

  • memory/3244-17-0x00000000752D0000-0x0000000075A80000-memory.dmp

    Filesize

    7.7MB

  • memory/3244-48-0x0000000005BC0000-0x0000000005BDE000-memory.dmp

    Filesize

    120KB

  • memory/3244-49-0x0000000005CE0000-0x0000000005D2C000-memory.dmp

    Filesize

    304KB

  • memory/3244-51-0x00000000718E0000-0x000000007192C000-memory.dmp

    Filesize

    304KB

  • memory/3244-62-0x0000000006BA0000-0x0000000006C43000-memory.dmp

    Filesize

    652KB

  • memory/3244-61-0x0000000006B30000-0x0000000006B4E000-memory.dmp

    Filesize

    120KB

  • memory/3244-50-0x0000000006B50000-0x0000000006B82000-memory.dmp

    Filesize

    200KB

  • memory/3244-64-0x0000000006ED0000-0x0000000006EEA000-memory.dmp

    Filesize

    104KB

  • memory/3244-63-0x0000000007510000-0x0000000007B8A000-memory.dmp

    Filesize

    6.5MB

  • memory/3244-22-0x0000000004D80000-0x0000000004DE6000-memory.dmp

    Filesize

    408KB

  • memory/3244-66-0x0000000007150000-0x00000000071E6000-memory.dmp

    Filesize

    600KB

  • memory/3244-67-0x00000000070D0000-0x00000000070E1000-memory.dmp

    Filesize

    68KB

  • memory/3244-18-0x0000000004E10000-0x0000000005438000-memory.dmp

    Filesize

    6.2MB

  • memory/3244-78-0x0000000007100000-0x000000000710E000-memory.dmp

    Filesize

    56KB

  • memory/3244-79-0x0000000007110000-0x0000000007124000-memory.dmp

    Filesize

    80KB

  • memory/3244-80-0x0000000007210000-0x000000000722A000-memory.dmp

    Filesize

    104KB

  • memory/3244-81-0x00000000071F0000-0x00000000071F8000-memory.dmp

    Filesize

    32KB

  • memory/3244-84-0x00000000752D0000-0x0000000075A80000-memory.dmp

    Filesize

    7.7MB

  • memory/3244-19-0x00000000752D0000-0x0000000075A80000-memory.dmp

    Filesize

    7.7MB

  • memory/5012-68-0x00000000718E0000-0x000000007192C000-memory.dmp

    Filesize

    304KB

  • memory/5012-88-0x00000000752D0000-0x0000000075A80000-memory.dmp

    Filesize

    7.7MB

  • memory/5012-25-0x00000000752D0000-0x0000000075A80000-memory.dmp

    Filesize

    7.7MB

  • memory/5012-27-0x00000000752D0000-0x0000000075A80000-memory.dmp

    Filesize

    7.7MB