Analysis

  • max time kernel
    43s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    16-08-2022 22:15

General

  • Target

    ba4f41c49113e6f68569cabb3b7c9f4dccdab49668b2342badb199e4a5a25024.exe

  • Size

    3.9MB

  • MD5

    70c4a1e5ce70e0ec16fc0c6d0f0384d9

  • SHA1

    2533d9a175e8617512fba948557a302c7d4683a2

  • SHA256

    ba4f41c49113e6f68569cabb3b7c9f4dccdab49668b2342badb199e4a5a25024

  • SHA512

    576b48ff847c2fac88d5f48133cc7ce36ddfeccb923fcdcb9847b7a9586cc531b2507557c24bb9889b6a4f7db5b864a5a316136b32c151cce2bae034fda9a89a

Malware Config

Extracted

Family

redline

C2

193.106.191.160:8673

Attributes
  • auth_value

    a92e5e3459b5f1ea8a76ec4f05c50c1e

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 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • UPX packed file 6 IoCs

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

  • Loads dropped DLL 2 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 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ba4f41c49113e6f68569cabb3b7c9f4dccdab49668b2342badb199e4a5a25024.exe
    "C:\Users\Admin\AppData\Local\Temp\ba4f41c49113e6f68569cabb3b7c9f4dccdab49668b2342badb199e4a5a25024.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1788
    • 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:94668
      • C:\Users\Admin\AppData\Roaming\yu.exe
        "C:\Users\Admin\AppData\Roaming\yu.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1588
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /C choice /C Y /N /D Y /T 0 &Del C:\Users\Admin\AppData\Roaming\yu.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:764
          • C:\Windows\system32\choice.exe
            choice /C Y /N /D Y /T 0
            5⤵
              PID:1984

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\yu.exe

      Filesize

      4.0MB

      MD5

      da70d0aab8cad0887e5e9b5174c9d87d

      SHA1

      af5096c0b9fd4f4926850c4479c8e0e0eac8c91b

      SHA256

      6617c1ab08b88711538b600fc4c5cf76098088b436185f5590cdb0e1fc1f6b13

      SHA512

      c100a08bccfa00dcf93160b6174940db1b6839aafbbaec8caa25c4c0e004c96aebf243552df85b7dff56915401bfcb0ecb9caa9bce2edf0d29a9b52c849ebcc5

    • C:\Users\Admin\AppData\Roaming\yu.exe

      Filesize

      4.0MB

      MD5

      da70d0aab8cad0887e5e9b5174c9d87d

      SHA1

      af5096c0b9fd4f4926850c4479c8e0e0eac8c91b

      SHA256

      6617c1ab08b88711538b600fc4c5cf76098088b436185f5590cdb0e1fc1f6b13

      SHA512

      c100a08bccfa00dcf93160b6174940db1b6839aafbbaec8caa25c4c0e004c96aebf243552df85b7dff56915401bfcb0ecb9caa9bce2edf0d29a9b52c849ebcc5

    • \Users\Admin\AppData\Roaming\yu.exe

      Filesize

      4.0MB

      MD5

      da70d0aab8cad0887e5e9b5174c9d87d

      SHA1

      af5096c0b9fd4f4926850c4479c8e0e0eac8c91b

      SHA256

      6617c1ab08b88711538b600fc4c5cf76098088b436185f5590cdb0e1fc1f6b13

      SHA512

      c100a08bccfa00dcf93160b6174940db1b6839aafbbaec8caa25c4c0e004c96aebf243552df85b7dff56915401bfcb0ecb9caa9bce2edf0d29a9b52c849ebcc5

    • \Users\Admin\AppData\Roaming\yu.exe

      Filesize

      4.0MB

      MD5

      da70d0aab8cad0887e5e9b5174c9d87d

      SHA1

      af5096c0b9fd4f4926850c4479c8e0e0eac8c91b

      SHA256

      6617c1ab08b88711538b600fc4c5cf76098088b436185f5590cdb0e1fc1f6b13

      SHA512

      c100a08bccfa00dcf93160b6174940db1b6839aafbbaec8caa25c4c0e004c96aebf243552df85b7dff56915401bfcb0ecb9caa9bce2edf0d29a9b52c849ebcc5

    • memory/764-74-0x0000000000000000-mapping.dmp

    • memory/1588-71-0x0000000000000000-mapping.dmp

    • memory/1588-73-0x0000000000250000-0x0000000001028000-memory.dmp

      Filesize

      13.8MB

    • memory/1588-77-0x0000000000250000-0x0000000001028000-memory.dmp

      Filesize

      13.8MB

    • memory/1788-54-0x0000000000400000-0x0000000000AAD000-memory.dmp

      Filesize

      6.7MB

    • memory/1984-75-0x0000000000000000-mapping.dmp

    • memory/94668-66-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/94668-68-0x00000000761F1000-0x00000000761F3000-memory.dmp

      Filesize

      8KB

    • memory/94668-67-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/94668-65-0x000000000041B50E-mapping.dmp

    • memory/94668-60-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/94668-58-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB