Resubmissions

15-02-2022 10:41

220215-mq6pmsfcgj 10

01-02-2022 14:58

220201-sb6zragdg4 10

Analysis

  • max time kernel
    65s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    15-02-2022 10:41

General

  • Target

    AvastAuth._decrypt.dll

  • Size

    162KB

  • MD5

    adbc1eaaecab410501ea4b2a35f6231a

  • SHA1

    cca00de2a97c7aae8b9cdffa5379b698d56280f8

  • SHA256

    6cdd1ef4cccca8c8fc80264eb0bf999cc80857a099a0037b14105b678a9368d3

  • SHA512

    84e909dabd4f620197b7cea7c4cd9517df2bfc61699e366a408ecd7105e825018bbebac0791e8ff308c53a4da7d29a226ea5f616f82e85f238b74c93cecf094f

Score
3/10

Malware Config

Signatures

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\AvastAuth._decrypt.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:308
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\AvastAuth._decrypt.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1896
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1896 -s 224
        3⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:516

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/516-56-0x0000000000590000-0x0000000000591000-memory.dmp

    Filesize

    4KB

  • memory/1896-54-0x0000000076491000-0x0000000076493000-memory.dmp

    Filesize

    8KB