Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/12/2023, 18:58

General

  • Target

    tuc5.exe

  • Size

    7.5MB

  • MD5

    338541e642a4cf6f111296f49e5839e4

  • SHA1

    5c61c2662070995fbf22ef25c0a623d7c90624af

  • SHA256

    8a5e92a2abef83798bf150c49e4b3e34af2f9104c0cd0d4a2c382b9c9b8b43d6

  • SHA512

    e167572a6f952af80ee7b3246cdc544fb54e6d1c12e4303c29591a51c61007fcbfc01af0c449ea9bed8372421ec99966ff25dcfa0725095c419a25e4e59961b1

  • SSDEEP

    196608:hO78pimeIjZMmsj7bXzjl3iT1A9SG7ul2xdVNWiYmJE6RI6zj:E78pimNjMDzjl3dQAdVN1YyRPzj

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Unexpected DNS network traffic destination 3 IoCs

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

  • Checks installed software on the system 1 TTPs

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

  • Drops file in Program Files directory 63 IoCs
  • Runs net.exe
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tuc5.exe
    "C:\Users\Admin\AppData\Local\Temp\tuc5.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1952
    • C:\Users\Admin\AppData\Local\Temp\is-QV06U.tmp\tuc5.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-QV06U.tmp\tuc5.tmp" /SL5="$70062,7611198,68096,C:\Users\Admin\AppData\Local\Temp\tuc5.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:5020
      • C:\Program Files (x86)\PlayGIF\gifplayer.exe
        "C:\Program Files (x86)\PlayGIF\gifplayer.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2728
      • C:\Program Files (x86)\PlayGIF\gifplayer.exe
        "C:\Program Files (x86)\PlayGIF\gifplayer.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4512
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" helpmsg 11
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1492
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:2376
    • C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 helpmsg 11
      1⤵
        PID:1276

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files (x86)\PlayGIF\gifplayer.exe

        Filesize

        375KB

        MD5

        e19ede1787539e3b6eed0221538a105a

        SHA1

        402be54b21aec436bdf83b5b2a2bb479f57388d6

        SHA256

        469e3209ef05e17e162749acd441b20f0c88c2ce6a04588627c7c9e7847f4b7d

        SHA512

        d94daf15a56429e4da3c81e73d802d898323653842676ab9808a21951eaac5f6209163e59bdad66d471f920bfc2285e39a5ca88484726dfdf667b02b5845c6ac

      • C:\Program Files (x86)\PlayGIF\gifplayer.exe

        Filesize

        13KB

        MD5

        5a9257877307e769ddc71e4c4c15e408

        SHA1

        181a92bf0d0fe81bf17c30137d84d5c1ddd9d726

        SHA256

        e6b31da2a06de9f3ef79740c006fdbe05aeccdec2df94a79dc4fed7509faefc6

        SHA512

        4788cb525054d7bc52b83443fc1f9ed3e45e0115af635086f983defffa5d1b356f6c76febe52d741930f191a27bde6ca3abf7f350356fcab5e7d4366a38b7216

      • C:\Program Files (x86)\PlayGIF\gifplayer.exe

        Filesize

        6KB

        MD5

        66681aa86c7fa81a53acbed5eec3ca64

        SHA1

        6afec4c7c43fce7b3c56522549408ceefa19eedf

        SHA256

        f3ac04ae9cbea683aaec5d3a66d2facf7819d5c87ab253c47594d63992c271b5

        SHA512

        d4fcbe087065184d70790c8957188fdd5de855db62ff44b74222bca62c150a1b4d73385c29201e7128cc77b8cf6d4756de9fa0d601fa88dab381866168353f67

      • C:\Users\Admin\AppData\Local\Temp\is-OFKEB.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • C:\Users\Admin\AppData\Local\Temp\is-OFKEB.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • C:\Users\Admin\AppData\Local\Temp\is-QV06U.tmp\tuc5.tmp

        Filesize

        538KB

        MD5

        ccf12486294a14975c1102ce08eb4797

        SHA1

        8730b28653becb335673232aa359a8abe9268553

        SHA256

        3ede7809636b34ddddf35180bbff39a36ad5e7575294023ba4f97070279498e3

        SHA512

        681f6f6270946d76bd2f2113129003d2b1087e02dee36116ca54d28f0ef72a472addbefe2141d475757593db5e1eea4527a51f77a883d34fccf0e0d2cd7df0e1

      • C:\Users\Admin\AppData\Local\Temp\is-QV06U.tmp\tuc5.tmp

        Filesize

        649KB

        MD5

        7ff746267a34358452a2ed023aa343e6

        SHA1

        903983161c02153d0dcc49608b03f7c31c931c56

        SHA256

        2d885a0c788581250ef2e388f5bccf8dcd14446029e02fa2941ee7a2aa2d59e1

        SHA512

        e07d2f9337feff17f7cabea4e48697a0951c87fdcd1993491a4ae6fcd50e103f49a06a21ca5a7f2c62f7966f9c81198c0ccb9f30e26f061976a2841e8efd9f2f

      • memory/1952-2-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/1952-160-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/1952-0-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/2728-152-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/2728-155-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/2728-151-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/2728-154-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/4512-162-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/4512-179-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/4512-208-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/4512-158-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/4512-205-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/4512-202-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/4512-166-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/4512-167-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/4512-170-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/4512-173-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/4512-176-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/4512-159-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/4512-183-0x0000000000900000-0x000000000099E000-memory.dmp

        Filesize

        632KB

      • memory/4512-180-0x0000000000900000-0x000000000099E000-memory.dmp

        Filesize

        632KB

      • memory/4512-186-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/4512-189-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/4512-190-0x0000000000900000-0x000000000099E000-memory.dmp

        Filesize

        632KB

      • memory/4512-193-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/4512-196-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/4512-199-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/5020-163-0x0000000000650000-0x0000000000651000-memory.dmp

        Filesize

        4KB

      • memory/5020-10-0x0000000000650000-0x0000000000651000-memory.dmp

        Filesize

        4KB

      • memory/5020-161-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB