Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-12-2023 20:35

General

  • Target

    113f59d0bd4384226e40c17bf899935d.exe

  • Size

    955KB

  • MD5

    113f59d0bd4384226e40c17bf899935d

  • SHA1

    4bf159402cefe87d328182fee0e82297b1fff5c5

  • SHA256

    b77f7c59b071608e552cf6ccae6f9e0e3f6790d83ec7d163713b0eedc6eccf25

  • SHA512

    d8e3717916475013e8ec8cc5a5fef303c4467fe66b944f1031ee73ad964a6a699d3c872a305173ac7565e5000ade605e8cef1cbe3ca9438ac1f85993a69a3b78

  • SSDEEP

    12288:gFrXv++Cjkemhes5D9Bq1U50kb9zU9uRyM3/CsUABjFG3CiEN4/PosRbOt/kUQQj:gFrpCDsz2SCyiJA+O9ENGZOMb

Malware Config

Signatures

  • A310logger

    A310 Logger is a .NET stealer/logger targeting passwords from browsers and email clients.

  • Detect ZGRat V1 1 IoCs
  • StormKitty

    StormKitty is an open source info stealer written in C#.

  • StormKitty payload 1 IoCs
  • ZGRat

    ZGRat is remote access trojan written in C#.

  • A310logger Executable 3 IoCs
  • Executes dropped EXE 3 IoCs
  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • 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 9 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.

  • Looks up geolocation information via web service

    Uses a legitimate geolocation service to find the infected system's geolocation info.

  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 6 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\113f59d0bd4384226e40c17bf899935d.exe
    "C:\Users\Admin\AppData\Local\Temp\113f59d0bd4384226e40c17bf899935d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2828
    • C:\Users\Admin\AppData\Local\Temp\113f59d0bd4384226e40c17bf899935d.exe
      "C:\Users\Admin\AppData\Local\Temp\113f59d0bd4384226e40c17bf899935d.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2276
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
        3⤵
        • Accesses Microsoft Outlook profiles
        • Checks processor information in registry
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:924
        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2708
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
        3⤵
        • Accesses Microsoft Outlook profiles
        • Checks processor information in registry
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4556
        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4536
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
        3⤵
        • Accesses Microsoft Outlook profiles
        • Checks processor information in registry
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        • outlook_office_path
        • outlook_win_path
        PID:4728
        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1064

Network

MITRE ATT&CK Matrix ATT&CK v13

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

System Information Discovery

2
T1082

Query Registry

1
T1012

Collection

Data from Local System

2
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0\UsageLogs\MZ.exe.log
    Filesize

    128B

    MD5

    3d238ac6dd6710907edf2ad7893a0ed2

    SHA1

    b07aaeeb31bdc6e94097a254be088b092dc1fb68

    SHA256

    02d215d5b6ea166e6c4c4669547cbadecbb427d5baf394fbffc7ef374a967501

    SHA512

    c358aa68303aa99ebc019014b4c1fc2fbfa98733f1ea863bf78ca2b877dc5c610121115432d96504df9e43bdda637b067359b07228b6f129bc5ec9a01ed3ee24

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\InstallUtil.exe.log
    Filesize

    496B

    MD5

    5370d1dff94d27a9a6cfab002a5c444b

    SHA1

    fecadd9e884c57822ebeae897a3989c0e678fd1a

    SHA256

    0ddb4ec9a919c3566a4ab48ce605f24816e6fb2efdd6e4070a54a1f5912ec946

    SHA512

    67a3787e49e7d8ea23b3e1766639b36e685cf404042bc270f5c43dc0b0f50623778cb98c013577b3a0a3b425b608ff4e944e29df3725425ce6383759fe7534eb

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
    Filesize

    20KB

    MD5

    1bad0cbd09b05a21157d8255dc801778

    SHA1

    ff284bba12f011b72e20d4c9537d6c455cdbf228

    SHA256

    218073bda7a00e780704c1289d5e22ad27bb3ba11f210afa18af33a6ad5176e9

    SHA512

    4fea56812eba1f1bba17f20d06b509e2a3b4e138562e53c230d0736d596abed4a6a3e43e26936fcd6d107924c8bba41885f34901afa4fd0d37d7e4a93c9b8533

  • memory/924-40-0x0000000074D10000-0x00000000752C1000-memory.dmp
    Filesize

    5.7MB

  • memory/924-20-0x0000000074D10000-0x00000000752C1000-memory.dmp
    Filesize

    5.7MB

  • memory/924-18-0x0000000074D10000-0x00000000752C1000-memory.dmp
    Filesize

    5.7MB

  • memory/924-17-0x0000000000400000-0x0000000000418000-memory.dmp
    Filesize

    96KB

  • memory/924-19-0x0000000000CF0000-0x0000000000D00000-memory.dmp
    Filesize

    64KB

  • memory/1064-80-0x00007FF8C52C0000-0x00007FF8C5C61000-memory.dmp
    Filesize

    9.6MB

  • memory/1064-81-0x00007FF8C52C0000-0x00007FF8C5C61000-memory.dmp
    Filesize

    9.6MB

  • memory/2276-41-0x0000000000400000-0x0000000000430000-memory.dmp
    Filesize

    192KB

  • memory/2276-10-0x0000000000400000-0x0000000000430000-memory.dmp
    Filesize

    192KB

  • memory/2276-13-0x0000000000400000-0x0000000000430000-memory.dmp
    Filesize

    192KB

  • memory/2708-37-0x00007FF8C4E10000-0x00007FF8C57B1000-memory.dmp
    Filesize

    9.6MB

  • memory/2708-38-0x00007FF8C4E10000-0x00007FF8C57B1000-memory.dmp
    Filesize

    9.6MB

  • memory/2708-33-0x0000000000F50000-0x0000000000F60000-memory.dmp
    Filesize

    64KB

  • memory/2708-32-0x00007FF8C4E10000-0x00007FF8C57B1000-memory.dmp
    Filesize

    9.6MB

  • memory/2708-42-0x00007FF8C4E10000-0x00007FF8C57B1000-memory.dmp
    Filesize

    9.6MB

  • memory/2828-9-0x00000000050E0000-0x00000000050F6000-memory.dmp
    Filesize

    88KB

  • memory/2828-2-0x0000000005600000-0x0000000005BA4000-memory.dmp
    Filesize

    5.6MB

  • memory/2828-1-0x0000000000710000-0x0000000000804000-memory.dmp
    Filesize

    976KB

  • memory/2828-8-0x0000000005360000-0x00000000053D8000-memory.dmp
    Filesize

    480KB

  • memory/2828-7-0x0000000005090000-0x00000000050AE000-memory.dmp
    Filesize

    120KB

  • memory/2828-6-0x0000000005350000-0x0000000005360000-memory.dmp
    Filesize

    64KB

  • memory/2828-5-0x0000000005210000-0x00000000052AC000-memory.dmp
    Filesize

    624KB

  • memory/2828-4-0x0000000005190000-0x0000000005206000-memory.dmp
    Filesize

    472KB

  • memory/2828-0-0x0000000075210000-0x00000000759C0000-memory.dmp
    Filesize

    7.7MB

  • memory/2828-3-0x00000000050F0000-0x0000000005182000-memory.dmp
    Filesize

    584KB

  • memory/2828-16-0x0000000075210000-0x00000000759C0000-memory.dmp
    Filesize

    7.7MB

  • memory/4536-61-0x00007FF8C4F90000-0x00007FF8C5931000-memory.dmp
    Filesize

    9.6MB

  • memory/4536-62-0x00007FF8C4F90000-0x00007FF8C5931000-memory.dmp
    Filesize

    9.6MB

  • memory/4556-48-0x0000000074A20000-0x0000000074FD1000-memory.dmp
    Filesize

    5.7MB

  • memory/4556-63-0x0000000074A20000-0x0000000074FD1000-memory.dmp
    Filesize

    5.7MB

  • memory/4556-47-0x0000000000F90000-0x0000000000FA0000-memory.dmp
    Filesize

    64KB

  • memory/4556-46-0x0000000074A20000-0x0000000074FD1000-memory.dmp
    Filesize

    5.7MB

  • memory/4728-66-0x0000000074A20000-0x0000000074FD1000-memory.dmp
    Filesize

    5.7MB

  • memory/4728-67-0x00000000009E0000-0x00000000009F0000-memory.dmp
    Filesize

    64KB

  • memory/4728-68-0x0000000074A20000-0x0000000074FD1000-memory.dmp
    Filesize

    5.7MB

  • memory/4728-82-0x0000000074A20000-0x0000000074FD1000-memory.dmp
    Filesize

    5.7MB