Analysis

  • max time kernel
    142s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-06-2024 07:21

General

  • Target

    8d2197a46049b79ea7d9652c91e119d891d1b299f0a5bcd226840c259055e219.exe

  • Size

    4.8MB

  • MD5

    b3ad27bb0c39bb27c038e3bc1083108e

  • SHA1

    7c46d4a96929b5ba1c055a1af3902470b1235700

  • SHA256

    8d2197a46049b79ea7d9652c91e119d891d1b299f0a5bcd226840c259055e219

  • SHA512

    a7d0b446a18f48aa390416a470965dfdb2d18eb503a466d8e76f581005399c705aa2fbd617174f42444ec58bdb9c1a5bfa9cd8dff4fbb898d6f55995a2721e91

  • SSDEEP

    98304:m/wQ5hb+Hu5T13rL0WdsjirMdUEMQLI78nEwEQCbWrp6e:9QTyHu5x30WajirSMQwsEFq6e

Malware Config

Extracted

Family

socks5systemz

C2

eruimdb.ua

http://eruimdb.ua/search/?q=67e28dd8685ff37d4306f81a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978f271ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff612c0ef949e39

http://eruimdb.ua/search/?q=67e28dd8685ff37d4306f81a7c27d78406abdd88be4b12eab517aa5c96bd86eb968f4e96148ab2865b77f80ebad9c60f7cb63037ed2ab423a4374383ba915d911ec07bb606a0708727e40ea678c45abbe74ffb0e2807e12571c17f3e83fe16c1e6969a3bcc6b94

Signatures

  • Detect Socks5Systemz Payload 3 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Unexpected DNS network traffic destination 1 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.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8d2197a46049b79ea7d9652c91e119d891d1b299f0a5bcd226840c259055e219.exe
    "C:\Users\Admin\AppData\Local\Temp\8d2197a46049b79ea7d9652c91e119d891d1b299f0a5bcd226840c259055e219.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4080
    • C:\Users\Admin\AppData\Local\Temp\is-DNN1I.tmp\8d2197a46049b79ea7d9652c91e119d891d1b299f0a5bcd226840c259055e219.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-DNN1I.tmp\8d2197a46049b79ea7d9652c91e119d891d1b299f0a5bcd226840c259055e219.tmp" /SL5="$800E0,4761883,54272,C:\Users\Admin\AppData\Local\Temp\8d2197a46049b79ea7d9652c91e119d891d1b299f0a5bcd226840c259055e219.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3156
      • C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition.exe
        "C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition.exe" -i
        3⤵
        • Executes dropped EXE
        PID:3272
      • C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition.exe
        "C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition.exe" -s
        3⤵
        • Executes dropped EXE
        PID:3520

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition.exe

    Filesize

    2.8MB

    MD5

    8d4d86c5443bd51a4b6e1ad932dbc875

    SHA1

    84654ca4b3fa5d94c698ca13b3cc3ed504765c9b

    SHA256

    29fcc4efab15d8c333dd909f13adbc97611699d6acc637617a3b96c3e4cc12dd

    SHA512

    33467ab51b2fe1042e19dc024cf1c1d48096fd6563321e00a39a987276b293df1f0e386d3afa679994faf15f08cc8e002559e250b7723cd7cb60f86a901627d9

  • C:\Users\Admin\AppData\Local\Temp\is-7GAO1.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-DNN1I.tmp\8d2197a46049b79ea7d9652c91e119d891d1b299f0a5bcd226840c259055e219.tmp

    Filesize

    680KB

    MD5

    69a0c22ac99522e8d939a7ec2a630a3e

    SHA1

    180ea969ab505cb37023374176878a083638793b

    SHA256

    1f9e5ca77fabb7ef10476f3717b38e98a0785860711387ce07ecb76abc01da7f

    SHA512

    b1294fefb43b0ccacf3fa0d421254e2ee66c1650da5326821995422939f9af7d1a865e651689984a1b9289952d4c6e5e9bd7f9926474e309b3dc9d48834662eb

  • memory/3156-69-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/3156-13-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/3272-63-0x0000000000400000-0x00000000006C7000-memory.dmp

    Filesize

    2.8MB

  • memory/3272-59-0x0000000000400000-0x00000000006C7000-memory.dmp

    Filesize

    2.8MB

  • memory/3272-60-0x0000000000400000-0x00000000006C7000-memory.dmp

    Filesize

    2.8MB

  • memory/3520-76-0x0000000000400000-0x00000000006C7000-memory.dmp

    Filesize

    2.8MB

  • memory/3520-107-0x0000000000400000-0x00000000006C7000-memory.dmp

    Filesize

    2.8MB

  • memory/3520-116-0x0000000000400000-0x00000000006C7000-memory.dmp

    Filesize

    2.8MB

  • memory/3520-113-0x0000000000400000-0x00000000006C7000-memory.dmp

    Filesize

    2.8MB

  • memory/3520-70-0x0000000000400000-0x00000000006C7000-memory.dmp

    Filesize

    2.8MB

  • memory/3520-73-0x0000000000400000-0x00000000006C7000-memory.dmp

    Filesize

    2.8MB

  • memory/3520-109-0x0000000000960000-0x0000000000A02000-memory.dmp

    Filesize

    648KB

  • memory/3520-79-0x0000000000400000-0x00000000006C7000-memory.dmp

    Filesize

    2.8MB

  • memory/3520-82-0x0000000000400000-0x00000000006C7000-memory.dmp

    Filesize

    2.8MB

  • memory/3520-85-0x0000000000960000-0x0000000000A02000-memory.dmp

    Filesize

    648KB

  • memory/3520-87-0x0000000000400000-0x00000000006C7000-memory.dmp

    Filesize

    2.8MB

  • memory/3520-92-0x0000000000400000-0x00000000006C7000-memory.dmp

    Filesize

    2.8MB

  • memory/3520-95-0x0000000000400000-0x00000000006C7000-memory.dmp

    Filesize

    2.8MB

  • memory/3520-98-0x0000000000400000-0x00000000006C7000-memory.dmp

    Filesize

    2.8MB

  • memory/3520-101-0x0000000000400000-0x00000000006C7000-memory.dmp

    Filesize

    2.8MB

  • memory/3520-104-0x0000000000400000-0x00000000006C7000-memory.dmp

    Filesize

    2.8MB

  • memory/3520-66-0x0000000000400000-0x00000000006C7000-memory.dmp

    Filesize

    2.8MB

  • memory/3520-108-0x0000000000960000-0x0000000000A02000-memory.dmp

    Filesize

    648KB

  • memory/4080-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4080-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/4080-68-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB