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Overview

overview

10

Static

static

10

20b5ecf5e5...3f.exe

windows7-x64

9

20b5ecf5e5...3f.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    147s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/04/2024, 19:21

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General

  • Target

    20b5ecf5e5871f282ce3ae72870ceb77d5fed1af9383cc3fb52835d116aaec3f.exe

  • Size

    160KB

  • MD5

    1e6391be5e36af6623bed1899bf420b6

  • SHA1

    87dbfd001d7b059f29de7bb3b33793148725e925

  • SHA256

    20b5ecf5e5871f282ce3ae72870ceb77d5fed1af9383cc3fb52835d116aaec3f

  • SHA512

    63bdd925fd8af8d38912f652b5e40ab4c86e417361e33e8d7c370159f7a28b9f216cd7ba74100606f3c586345f287b2399b17c1821312dd8f7bab2b17ceed8c8

  • SSDEEP

    1536:kVdmQr3Z5IfQmv81aypP1s3yX+tlehTz5:008JOfQm01F9s3yX+fehTt

Score
9/10
evasionupx

Malware Config

Signatures

  • Detects Windows executables referencing non-Windows User-Agents 4 IoCs
  • UPX dump on OEP (original entry point) 4 IoCs
  • Sets file to hidden 1 TTPs 1 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

    evasion
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 4 IoCs

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

    upx
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\20b5ecf5e5871f282ce3ae72870ceb77d5fed1af9383cc3fb52835d116aaec3f.exe
    "C:\Users\Admin\AppData\Local\Temp\20b5ecf5e5871f282ce3ae72870ceb77d5fed1af9383cc3fb52835d116aaec3f.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2376
    • C:\Windows\SysWOW64\attrib.exe
      attrib +a +s +h +r C:\Windows\Debug\qcihost.exe
      2⤵
      • Sets file to hidden
      • Drops file in Windows directory
      • Views/modifies file attributes
      PID:2692
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\20B5EC~1.EXE > nul
      2⤵
        PID:464
    • C:\Windows\Debug\qcihost.exe
      C:\Windows\Debug\qcihost.exe
      1⤵
      • Executes dropped EXE
      • Checks processor information in registry
      PID:4628

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\Debug\qcihost.exe
      Filesize

      160KB

      MD5

      ece9968d30d1830df06382204f0efc07

      SHA1

      59d67b958a51050b675af3b349c98f5ff8abca0d

      SHA256

      bdd5b0ac88e96dbb6e6661542042be88d26a76f94d18e982b0b9ff5526e814fe

      SHA512

      2eb10eb80aea0a5eda9568bea691902623ff9b7af9ecf53d25aef7bb6f5217f497bacac83066ec694a9549fe21e5860927cb83e2440a3eb33a946f414206920b

      Download Submit

    • memory/2376-0-0x0000000000400000-0x0000000000428000-memory.dmp

      Filesize

      160KB

      Download

    • memory/2376-5-0x0000000000400000-0x0000000000428000-memory.dmp

      Filesize

      160KB

      Download

    • memory/4628-6-0x0000000000400000-0x0000000000428000-memory.dmp

      Filesize

      160KB

      Download