Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    06/05/2026, 20:43

General

  • Target
    cfa67035137da211f28a60628a8582be1e3764251083e8fc25bb9bc8d50298c8.exe
  • Size 548KB
  • Sample260506-zhmysaev2p
  • SHA256 cfa67035137da211f28a60628a8582be1e3764251083e8fc25bb9bc8d50298c8
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Unexpected DNS network traffic destination 4 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Drops file in System32 directory 17 IoCs
  • UPX packed file 11 IoCs

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

  • Drops file in Windows directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies data under HKEY_USERS 9 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cfa67035137da211f28a60628a8582be1e3764251083e8fc25bb9bc8d50298c8.exe
    "C:\Users\Admin\AppData\Local\Temp\cfa67035137da211f28a60628a8582be1e3764251083e8fc25bb9bc8d50298c8.exe"
    1⤵
    • Unexpected DNS network traffic destination
    • Drops file in System32 directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4832
  • C:\Windows\Syswow64\f2a99df
    C:\Windows\Syswow64\f2a99df
    1⤵
    • Executes dropped EXE
    • Drops file in System32 directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3848

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        f2a99df

        • Path C:\Windows\SysWOW64\f2a99df
        • Size 548KB
        • SHA256 7f288f95afcad08efe812e95437f6ccd88f57421d0c57e1b2da7705ebda41a14
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3848-34-0x0000000000990000-0x0000000000A19000-memory.dmp

        memory/3848-4-0x0000000000990000-0x0000000000A19000-memory.dmp

        memory/3848-52-0x0000000000990000-0x0000000000A19000-memory.dmp

        memory/3848-12-0x0000000000990000-0x0000000000A19000-memory.dmp

        memory/3848-13-0x0000000001BB0000-0x0000000001C14000-memory.dmp

        memory/3848-50-0x0000000000990000-0x0000000000A19000-memory.dmp

        memory/4832-32-0x00000000005F0000-0x0000000000679000-memory.dmp

        memory/4832-33-0x0000000002F10000-0x0000000002F74000-memory.dmp

        memory/4832-48-0x00000000005F0000-0x0000000000679000-memory.dmp

        memory/4832-49-0x0000000002F10000-0x0000000002F74000-memory.dmp

        memory/4832-0-0x00000000005F0000-0x0000000000679000-memory.dmp

        memory/4832-10-0x00000000005F0000-0x0000000000679000-memory.dmp

        memory/4832-60-0x00000000005F0000-0x0000000000679000-memory.dmp