Analysis

  • max time kernel
    39s
  • max time network
    50s
  • 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

    077081409292056cd64db1b59d87aa20.exe

  • Size

    3.9MB

  • MD5

    077081409292056cd64db1b59d87aa20

  • SHA1

    0d1355049116892ff50f51644713e191cab962a9

  • SHA256

    b96e04e692837a4e53e4afeabdf02113d2a02831a0d31a0a4a4554d4fcedb58a

  • SHA512

    17b1a80db9e557c5241307ddb169ba27e2befacfac81e9e39085197cc02c0c04c0760b67d54deb743619f74353193e83c243ad3f583a6d9dc07d62988533acde

Malware Config

Extracted

Family

redline

C2

193.106.191.160:8673

Attributes
  • auth_value

    f851075e7177a68d1405b67a1fdef844

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\077081409292056cd64db1b59d87aa20.exe
    "C:\Users\Admin\AppData\Local\Temp\077081409292056cd64db1b59d87aa20.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:880
    • 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:59260
      • 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:58764
        • 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:59000
          • C:\Windows\system32\choice.exe
            choice /C Y /N /D Y /T 0
            5⤵
              PID:59056

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Credential Access

    Credentials in Files

    2
    T1081

    Collection

    Data from Local System

    2
    T1005

    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/880-54-0x0000000000400000-0x0000000000AA0000-memory.dmp
      Filesize

      6.6MB

    • memory/58764-81-0x0000000000BC0000-0x0000000001998000-memory.dmp
      Filesize

      13.8MB

    • memory/58764-77-0x0000000000BC0000-0x0000000001998000-memory.dmp
      Filesize

      13.8MB

    • memory/58764-73-0x0000000000000000-mapping.dmp
    • memory/59000-78-0x0000000000000000-mapping.dmp
    • memory/59056-79-0x0000000000000000-mapping.dmp
    • memory/59260-69-0x0000000000400000-0x0000000000420000-memory.dmp
      Filesize

      128KB

    • memory/59260-75-0x0000000006470000-0x0000000007248000-memory.dmp
      Filesize

      13.8MB

    • memory/59260-76-0x0000000006470000-0x0000000007248000-memory.dmp
      Filesize

      13.8MB

    • memory/59260-70-0x0000000075831000-0x0000000075833000-memory.dmp
      Filesize

      8KB

    • memory/59260-68-0x0000000000400000-0x0000000000420000-memory.dmp
      Filesize

      128KB

    • memory/59260-67-0x000000000041B50E-mapping.dmp
    • memory/59260-62-0x0000000000400000-0x0000000000420000-memory.dmp
      Filesize

      128KB

    • memory/59260-60-0x0000000000400000-0x0000000000420000-memory.dmp
      Filesize

      128KB