Analysis

  • max time kernel
    141s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-12-2023 20:50

General

  • Target

    KcOX.exe

  • Size

    609KB

  • MD5

    fe03b712d2e463fdeb67f9f9f2d98fc9

  • SHA1

    d978aed329e47d47791e13f31fc4aa823e545f89

  • SHA256

    1ab6ad1baf7099b79f78d5cc575dc08d33320b1f607b6fa038432c3a27fb2dfd

  • SHA512

    170ca520c7a9489f8245ae18fb3fa5aa7bc1441d183daa4f72e34a3bbbd393ca46427c25a3809fd805c19348eebf880f1b51c4c147b0ddeac8f1aad02fcd3a03

  • SSDEEP

    12288:hMdIt/5J/tXcPl1RWLDmJr4YoKnE5ZrZ4YIfjwIF7:iWBJZ0lSuEbT5ZrlI7ws7

Malware Config

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 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 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 2 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
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\KcOX.exe
    "C:\Users\Admin\AppData\Local\Temp\KcOX.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4796
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DTeVcECl.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:432
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DTeVcECl" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEC44.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2944
    • C:\Users\Admin\AppData\Local\Temp\KcOX.exe
      "C:\Users\Admin\AppData\Local\Temp\KcOX.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3780

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uem2nnlq.dew.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpEC44.tmp

    Filesize

    1KB

    MD5

    b5e7d652087aea79cf624728395d8688

    SHA1

    b97203eb7b4d753a388fb34b4ff3c6adff612672

    SHA256

    bdc708906a850f8b55bc25cf224b62017eddeee3f933808f2f85526b0c06ae81

    SHA512

    4e9018298c0f16b99281538f0f1ca37a4cebe2e92be5f966a96ea9340d65b0dd104bb6862a53156bbd378ba683e24aa783b11984af08869a08ec50671d06a03b

  • memory/432-18-0x0000000074D00000-0x00000000754B0000-memory.dmp

    Filesize

    7.7MB

  • memory/432-63-0x0000000007950000-0x0000000007964000-memory.dmp

    Filesize

    80KB

  • memory/432-65-0x0000000007A30000-0x0000000007A38000-memory.dmp

    Filesize

    32KB

  • memory/432-21-0x0000000001340000-0x0000000001350000-memory.dmp

    Filesize

    64KB

  • memory/432-61-0x00000000078F0000-0x0000000007901000-memory.dmp

    Filesize

    68KB

  • memory/432-60-0x0000000007970000-0x0000000007A06000-memory.dmp

    Filesize

    600KB

  • memory/432-59-0x0000000007760000-0x000000000776A000-memory.dmp

    Filesize

    40KB

  • memory/432-58-0x00000000076F0000-0x000000000770A000-memory.dmp

    Filesize

    104KB

  • memory/432-57-0x0000000007D40000-0x00000000083BA000-memory.dmp

    Filesize

    6.5MB

  • memory/432-56-0x00000000073F0000-0x0000000007493000-memory.dmp

    Filesize

    652KB

  • memory/432-55-0x0000000006990000-0x00000000069AE000-memory.dmp

    Filesize

    120KB

  • memory/432-17-0x0000000001300000-0x0000000001336000-memory.dmp

    Filesize

    216KB

  • memory/432-42-0x0000000006460000-0x00000000064AC000-memory.dmp

    Filesize

    304KB

  • memory/432-64-0x0000000007A50000-0x0000000007A6A000-memory.dmp

    Filesize

    104KB

  • memory/432-62-0x0000000007940000-0x000000000794E000-memory.dmp

    Filesize

    56KB

  • memory/432-19-0x0000000001340000-0x0000000001350000-memory.dmp

    Filesize

    64KB

  • memory/432-22-0x0000000005680000-0x0000000005CA8000-memory.dmp

    Filesize

    6.2MB

  • memory/432-44-0x00000000073B0000-0x00000000073E2000-memory.dmp

    Filesize

    200KB

  • memory/432-23-0x0000000005310000-0x0000000005332000-memory.dmp

    Filesize

    136KB

  • memory/432-26-0x0000000005420000-0x0000000005486000-memory.dmp

    Filesize

    408KB

  • memory/432-25-0x00000000053B0000-0x0000000005416000-memory.dmp

    Filesize

    408KB

  • memory/432-45-0x0000000070B40000-0x0000000070B8C000-memory.dmp

    Filesize

    304KB

  • memory/432-30-0x0000000005DD0000-0x0000000006124000-memory.dmp

    Filesize

    3.3MB

  • memory/432-43-0x0000000001340000-0x0000000001350000-memory.dmp

    Filesize

    64KB

  • memory/432-68-0x0000000074D00000-0x00000000754B0000-memory.dmp

    Filesize

    7.7MB

  • memory/432-41-0x00000000063D0000-0x00000000063EE000-memory.dmp

    Filesize

    120KB

  • memory/3780-28-0x0000000074D00000-0x00000000754B0000-memory.dmp

    Filesize

    7.7MB

  • memory/3780-40-0x00000000057F0000-0x0000000005800000-memory.dmp

    Filesize

    64KB

  • memory/3780-73-0x00000000057F0000-0x0000000005800000-memory.dmp

    Filesize

    64KB

  • memory/3780-72-0x0000000074D00000-0x00000000754B0000-memory.dmp

    Filesize

    7.7MB

  • memory/3780-24-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/3780-71-0x0000000007210000-0x000000000773C000-memory.dmp

    Filesize

    5.2MB

  • memory/3780-70-0x0000000006B10000-0x0000000006CD2000-memory.dmp

    Filesize

    1.8MB

  • memory/3780-69-0x00000000068F0000-0x0000000006940000-memory.dmp

    Filesize

    320KB

  • memory/4796-6-0x0000000005A30000-0x0000000005ACC000-memory.dmp

    Filesize

    624KB

  • memory/4796-2-0x0000000005CB0000-0x0000000006254000-memory.dmp

    Filesize

    5.6MB

  • memory/4796-7-0x0000000008050000-0x0000000008066000-memory.dmp

    Filesize

    88KB

  • memory/4796-9-0x0000000006A70000-0x0000000006A7A000-memory.dmp

    Filesize

    40KB

  • memory/4796-5-0x0000000005740000-0x000000000574A000-memory.dmp

    Filesize

    40KB

  • memory/4796-4-0x0000000005A20000-0x0000000005A30000-memory.dmp

    Filesize

    64KB

  • memory/4796-3-0x00000000057A0000-0x0000000005832000-memory.dmp

    Filesize

    584KB

  • memory/4796-8-0x0000000006A60000-0x0000000006A68000-memory.dmp

    Filesize

    32KB

  • memory/4796-1-0x0000000000C90000-0x0000000000D2E000-memory.dmp

    Filesize

    632KB

  • memory/4796-10-0x0000000006CC0000-0x0000000006D20000-memory.dmp

    Filesize

    384KB

  • memory/4796-11-0x0000000074D00000-0x00000000754B0000-memory.dmp

    Filesize

    7.7MB

  • memory/4796-12-0x0000000005A20000-0x0000000005A30000-memory.dmp

    Filesize

    64KB

  • memory/4796-0-0x0000000074D00000-0x00000000754B0000-memory.dmp

    Filesize

    7.7MB

  • memory/4796-29-0x0000000074D00000-0x00000000754B0000-memory.dmp

    Filesize

    7.7MB