Analysis

  • max time kernel
    134s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-05-2024 10:02

General

  • Target

    396631ba370acc38e6f62756cecd042fc99d8150beb80483127f81430d279ca0.exe

  • Size

    1.1MB

  • MD5

    491a1a616709c3545421cfe7e9a0a5fe

  • SHA1

    6209307eb09238a51579b3edc7bfbde97c768f0d

  • SHA256

    396631ba370acc38e6f62756cecd042fc99d8150beb80483127f81430d279ca0

  • SHA512

    87a8177818b18120384e0bc87a8c708064220015e222f15803065883749afce38e2a5c5e9af6ddcf5f3f15ff18818a10290f5cd42a19095dcf11af9d779c9491

  • SSDEEP

    24576:sy0xoIFWVsveTG7W2KWEbrHG0+1TryyzBEPx7Ff5F4LTmmgcDAg+j:bPIFWVs2TGS2KWEbrm0QyIqPD4TQ

Malware Config

Extracted

Family

amadey

Version

3.87

Botnet

59b440

C2

http://77.91.68.18

Attributes
  • install_dir

    b40d11255d

  • install_file

    saves.exe

  • strings_key

    fa622dfc42544927a6471829ee1fa9fe

  • url_paths

    /nice/index.php

rc4.plain

Extracted

Family

redline

Botnet

mrak

C2

77.91.124.82:19071

Attributes
  • auth_value

    7d9a335ab5dfd42d374867c96fe25302

Signatures

  • Amadey

    Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

  • Detect Mystic stealer payload 1 IoCs
  • Mystic

    Mystic is an infostealer written in C++.

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine payload 2 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 8 IoCs
  • Adds Run key to start application 2 TTPs 3 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 use of WriteProcessMemory 42 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\396631ba370acc38e6f62756cecd042fc99d8150beb80483127f81430d279ca0.exe
    "C:\Users\Admin\AppData\Local\Temp\396631ba370acc38e6f62756cecd042fc99d8150beb80483127f81430d279ca0.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:4712
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\y2074372.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\y2074372.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:3348
      • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\y8785424.exe
        C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\y8785424.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of WriteProcessMemory
        PID:4308
        • C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\l3899700.exe
          C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\l3899700.exe
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:3968
          • C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe
            "C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe"
            5⤵
            • Checks computer location settings
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:3988
            • C:\Windows\SysWOW64\schtasks.exe
              "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN saves.exe /TR "C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe" /F
              6⤵
              • Creates scheduled task(s)
              PID:3444
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\System32\cmd.exe" /k echo Y|CACLS "saves.exe" /P "Admin:N"&&CACLS "saves.exe" /P "Admin:R" /E&&echo Y|CACLS "..\b40d11255d" /P "Admin:N"&&CACLS "..\b40d11255d" /P "Admin:R" /E&&Exit
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:2280
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /S /D /c" echo Y"
                7⤵
                  PID:3088
                • C:\Windows\SysWOW64\cacls.exe
                  CACLS "saves.exe" /P "Admin:N"
                  7⤵
                    PID:5060
                  • C:\Windows\SysWOW64\cacls.exe
                    CACLS "saves.exe" /P "Admin:R" /E
                    7⤵
                      PID:1588
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /S /D /c" echo Y"
                      7⤵
                        PID:3940
                      • C:\Windows\SysWOW64\cacls.exe
                        CACLS "..\b40d11255d" /P "Admin:N"
                        7⤵
                          PID:4228
                        • C:\Windows\SysWOW64\cacls.exe
                          CACLS "..\b40d11255d" /P "Admin:R" /E
                          7⤵
                            PID:556
                    • C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\m4533809.exe
                      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\m4533809.exe
                      4⤵
                      • Executes dropped EXE
                      PID:4384
                  • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\n8784361.exe
                    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\n8784361.exe
                    3⤵
                    • Executes dropped EXE
                    PID:1204
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4356,i,5047420736443372512,9747851268033796534,262144 --variations-seed-version --mojo-platform-channel-handle=4404 /prefetch:8
                1⤵
                  PID:4020
                • C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe
                  C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe
                  1⤵
                  • Executes dropped EXE
                  PID:396
                • C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe
                  C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe
                  1⤵
                  • Executes dropped EXE
                  PID:1948

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

                • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\y2074372.exe

                  Filesize

                  475KB

                  MD5

                  f86647f1907c42d569b9f0ffbed99161

                  SHA1

                  251b7c5a5272d6b78b10da2851b47cf174dfc3a6

                  SHA256

                  e1e7d7c1d59065d07e4fba642299af5fb55b58b3474006c6e7bc814e3fbec2d8

                  SHA512

                  82a0d5365387cbb87059d1295c9235414dbeb9b9442c242595b073a4fae753a4f1d56059801029f6878338b1ab400ca66310ff0f5d03bfe6ef5eafa1a4e96879

                • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\n8784361.exe

                  Filesize

                  173KB

                  MD5

                  071262ed56f897e2b659d87090755554

                  SHA1

                  e9b977339b8fcfb7163cd09dfe0ca3225d81fcd5

                  SHA256

                  9e1b48b291ec682abadcb2724de66c9ff9ba6275b33f1c390093145b76402a1b

                  SHA512

                  b14c2ff9cad5dee07e6f8662c45742a9708c19811e5fd437bb9189dc6e0b5ccb44594e8f1a03c47eebf81dc9bfa1f898816cf54774a45fc7fe76a6b44bbda9e2

                • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\y8785424.exe

                  Filesize

                  320KB

                  MD5

                  7586ac961fc6fe8ea3fb77df78713e2b

                  SHA1

                  caeb831cb4e16c719488a160ff25b0b7bce02489

                  SHA256

                  884358d16ddaa1a81d30ee28f422753fdd28aca70c7258bd10bcf8074a2eb113

                  SHA512

                  f1b1934493227b3d67daab4016f047712611483fa7016038ff362e3bb1ba05b7b76cf55d082384d90122740b70923a87fb06c98d42cad0914cc4cd27392787f5

                • C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\l3899700.exe

                  Filesize

                  336KB

                  MD5

                  c303d5cd4b1189cd2b31500998b22eb4

                  SHA1

                  e1fa90ea9d75e87b2a828b50bb4e4d5cdfd6d8b7

                  SHA256

                  da9da65281f19ab42e591901d772f89f3e66046152684d2fb033967d0d6cfca3

                  SHA512

                  fb50f13bf81f843fe2c2941a3b4c80677d35ce117ce89a9cee490c538690394f9835e3c08ea45322b4ebf54f31cd4296a79fc12a6df89f4d15d5ec72c4019572

                • C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\m4533809.exe

                  Filesize

                  141KB

                  MD5

                  63491b31eedba73a8f01f2a5205cc933

                  SHA1

                  cbd8accb0bfe1fb9c68126f9e3de2613f89aa46b

                  SHA256

                  86b6efaa8af43464a82c8dbcd6e57f1028c69bb3e1a24f32320a18d6d3140f54

                  SHA512

                  855a44c735c32dc10db606e26d18dd2e4e2e2c42db63c1ef70a534abde85748b852accad7828ad12a8af8fc836f7d68492ecca7fb994160b3a804a6bab8841f3

                • memory/1204-36-0x0000000000EC0000-0x0000000000EF0000-memory.dmp

                  Filesize

                  192KB

                • memory/1204-37-0x00000000030C0000-0x00000000030C6000-memory.dmp

                  Filesize

                  24KB

                • memory/1204-38-0x0000000005EE0000-0x00000000064F8000-memory.dmp

                  Filesize

                  6.1MB

                • memory/1204-39-0x00000000059D0000-0x0000000005ADA000-memory.dmp

                  Filesize

                  1.0MB

                • memory/1204-40-0x0000000005830000-0x0000000005842000-memory.dmp

                  Filesize

                  72KB

                • memory/1204-41-0x00000000058C0000-0x00000000058FC000-memory.dmp

                  Filesize

                  240KB

                • memory/1204-42-0x0000000005900000-0x000000000594C000-memory.dmp

                  Filesize

                  304KB