Analysis

  • max time kernel
    65s
  • max time network
    68s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    13-08-2022 06:13

General

  • Target

    bcbd2fe43df8ff15d3e4503438a54951.exe

  • Size

    3.9MB

  • MD5

    bcbd2fe43df8ff15d3e4503438a54951

  • SHA1

    2c3848c520573916606777df889ab7e0f9a84ea3

  • SHA256

    dde8987c6126117794a9922ce253a735bd113100a8e56412b518bd9349e70d83

  • SHA512

    b72ee7273a6869b0f90b35a6e944c2c92030d3a219504e70ceaa843b592ef97331cc621c4bf0aca2daa78017b94a0402211c7d2f0becca7926ee97c30be3959d

Malware Config

Extracted

Family

redline

C2

185.215.113.83:60722

Attributes
  • auth_value

    a1b687bd55ee0ce016df2e017a162814

Signatures

  • RedLine

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

  • RedLine payload 5 IoCs
  • YTStealer

    YTStealer is a malware designed to steal YouTube authentication cookies.

  • YTStealer payload 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bcbd2fe43df8ff15d3e4503438a54951.exe
    "C:\Users\Admin\AppData\Local\Temp\bcbd2fe43df8ff15d3e4503438a54951.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1932
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:69316
      • C:\Users\Admin\AppData\Local\Temp\Starter.exe
        "C:\Users\Admin\AppData\Local\Temp\Starter.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:69016
      • C:\Users\Admin\AppData\Local\Temp\start.exe
        "C:\Users\Admin\AppData\Local\Temp\start.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:69172
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /C choice /C Y /N /D Y /T 0 &Del C:\Users\Admin\AppData\Local\Temp\start.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1464
          • C:\Windows\system32\choice.exe
            choice /C Y /N /D Y /T 0
            5⤵
              PID:1736

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\Starter.exe

      Filesize

      18KB

      MD5

      3d41fe66e7592eb35c5ef99a83fce2a4

      SHA1

      5dc2984ceb1a169b5571267159c43f1b0e5d757d

      SHA256

      7c58039db066e640a338ac6180adcf0b45cbfb9adaa7ae3b279d4628159c4198

      SHA512

      9ac687f2278f19265ae361eee6bbbe0234fed0d9b16c9f4524af8c9e1e131a51fddfa0a19cbbda9feb0b5ccf22ffaad97d5c425f179cb7d920dba66ad7f4e285

    • C:\Users\Admin\AppData\Local\Temp\Starter.exe

      Filesize

      18KB

      MD5

      3d41fe66e7592eb35c5ef99a83fce2a4

      SHA1

      5dc2984ceb1a169b5571267159c43f1b0e5d757d

      SHA256

      7c58039db066e640a338ac6180adcf0b45cbfb9adaa7ae3b279d4628159c4198

      SHA512

      9ac687f2278f19265ae361eee6bbbe0234fed0d9b16c9f4524af8c9e1e131a51fddfa0a19cbbda9feb0b5ccf22ffaad97d5c425f179cb7d920dba66ad7f4e285

    • C:\Users\Admin\AppData\Local\Temp\start.exe

      Filesize

      4.0MB

      MD5

      b09ec6718a34a70a182f3412b89f6777

      SHA1

      e730645db18339897aeddb4f21ce662911e03444

      SHA256

      21c2f78a2ba5891c4dbdc1b50283844c7720ecd3f1187fb9269015524cad2da2

      SHA512

      5d0f9eb9fcfe8a5d6c42db552d35411116ec0b405e747537a75fd50fb6e9f1d1fc1bf95c169c5ef7c2d217b7cc5d647a6ed36f130e0382a71f919c5e09ec7881

    • C:\Users\Admin\AppData\Local\Temp\start.exe

      Filesize

      4.0MB

      MD5

      b09ec6718a34a70a182f3412b89f6777

      SHA1

      e730645db18339897aeddb4f21ce662911e03444

      SHA256

      21c2f78a2ba5891c4dbdc1b50283844c7720ecd3f1187fb9269015524cad2da2

      SHA512

      5d0f9eb9fcfe8a5d6c42db552d35411116ec0b405e747537a75fd50fb6e9f1d1fc1bf95c169c5ef7c2d217b7cc5d647a6ed36f130e0382a71f919c5e09ec7881

    • \Users\Admin\AppData\Local\Temp\Starter.exe

      Filesize

      18KB

      MD5

      3d41fe66e7592eb35c5ef99a83fce2a4

      SHA1

      5dc2984ceb1a169b5571267159c43f1b0e5d757d

      SHA256

      7c58039db066e640a338ac6180adcf0b45cbfb9adaa7ae3b279d4628159c4198

      SHA512

      9ac687f2278f19265ae361eee6bbbe0234fed0d9b16c9f4524af8c9e1e131a51fddfa0a19cbbda9feb0b5ccf22ffaad97d5c425f179cb7d920dba66ad7f4e285

    • \Users\Admin\AppData\Local\Temp\start.exe

      Filesize

      4.0MB

      MD5

      b09ec6718a34a70a182f3412b89f6777

      SHA1

      e730645db18339897aeddb4f21ce662911e03444

      SHA256

      21c2f78a2ba5891c4dbdc1b50283844c7720ecd3f1187fb9269015524cad2da2

      SHA512

      5d0f9eb9fcfe8a5d6c42db552d35411116ec0b405e747537a75fd50fb6e9f1d1fc1bf95c169c5ef7c2d217b7cc5d647a6ed36f130e0382a71f919c5e09ec7881

    • \Users\Admin\AppData\Local\Temp\start.exe

      Filesize

      4.0MB

      MD5

      b09ec6718a34a70a182f3412b89f6777

      SHA1

      e730645db18339897aeddb4f21ce662911e03444

      SHA256

      21c2f78a2ba5891c4dbdc1b50283844c7720ecd3f1187fb9269015524cad2da2

      SHA512

      5d0f9eb9fcfe8a5d6c42db552d35411116ec0b405e747537a75fd50fb6e9f1d1fc1bf95c169c5ef7c2d217b7cc5d647a6ed36f130e0382a71f919c5e09ec7881

    • memory/1464-83-0x0000000000000000-mapping.dmp

    • memory/1736-84-0x0000000000000000-mapping.dmp

    • memory/1932-54-0x0000000000400000-0x0000000000A9F000-memory.dmp

      Filesize

      6.6MB

    • memory/69016-76-0x0000000001160000-0x000000000116A000-memory.dmp

      Filesize

      40KB

    • memory/69016-72-0x0000000000000000-mapping.dmp

    • memory/69172-79-0x0000000000000000-mapping.dmp

    • memory/69172-85-0x0000000000F30000-0x0000000001D09000-memory.dmp

      Filesize

      13.8MB

    • memory/69172-87-0x0000000000F30000-0x0000000001D09000-memory.dmp

      Filesize

      13.8MB

    • memory/69316-70-0x0000000075F51000-0x0000000075F53000-memory.dmp

      Filesize

      8KB

    • memory/69316-67-0x000000000041B51E-mapping.dmp

    • memory/69316-62-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/69316-69-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/69316-81-0x0000000006610000-0x00000000073E9000-memory.dmp

      Filesize

      13.8MB

    • memory/69316-82-0x0000000006610000-0x00000000073E9000-memory.dmp

      Filesize

      13.8MB

    • memory/69316-68-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/69316-60-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB