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Overview

overview

9

Static

static

3

2024-05-31...if.exe

windows7-x64

9

2024-05-31...if.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    141s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    31/05/2024, 04:48 UTC

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General

  • Target

    2024-05-31_2bf805c616d61951abb104031bef781c_avoslocker_cobalt-strike_floxif.exe

  • Size

    224KB

  • MD5

    2bf805c616d61951abb104031bef781c

  • SHA1

    adc6a773504a676167632896f664e4c6688416ce

  • SHA256

    eb9d10496fd690f74d61468e6c7e226d13e9e135371b7be6fbdd244da3bd6961

  • SHA512

    032909d9b0040b935fae352c2682f51f8161a781ad8341239e1c5a43cd46d0223e8772224348b3ccd3c4b898c00b93844223fac29d44c61d505f7fe3f79943ec

  • SSDEEP

    6144:ayi2zi7ajvRcATH2FaLw9hH4JdBV+UdvrEFp7hKAZ:ayi2zi+jvfG9hH4JdBjvrEH7T

Score
9/10
persistenceupx

Malware Config

Signatures

  • UPX dump on OEP (original entry point) 8 IoCs
  • Modifies AppInit DLL entries 2 TTPs
    persistence
  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Loads dropped DLL 1 IoCs
  • UPX packed file 8 IoCs

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

    upx
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-31_2bf805c616d61951abb104031bef781c_avoslocker_cobalt-strike_floxif.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-31_2bf805c616d61951abb104031bef781c_avoslocker_cobalt-strike_floxif.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2228

Network

  • flag-us
    DNS
    5isohu.com
    2024-05-31_2bf805c616d61951abb104031bef781c_avoslocker_cobalt-strike_floxif.exe
    Remote address:
    8.8.8.8:53
    Request
    5isohu.com
    IN A
    Response
  • flag-us
    DNS
    www.aieov.com
    2024-05-31_2bf805c616d61951abb104031bef781c_avoslocker_cobalt-strike_floxif.exe
    Remote address:
    8.8.8.8:53
    Request
    www.aieov.com
    IN A
    Response
    www.aieov.com
    IN A
    45.56.79.23
    www.aieov.com
    IN A
    198.58.118.167
    www.aieov.com
    IN A
    45.33.23.183
    www.aieov.com
    IN A
    96.126.123.244
    www.aieov.com
    IN A
    45.79.19.196
    www.aieov.com
    IN A
    45.33.2.79
    www.aieov.com
    IN A
    173.255.194.134
    www.aieov.com
    IN A
    72.14.185.43
    www.aieov.com
    IN A
    45.33.18.44
    www.aieov.com
    IN A
    45.33.30.197
    www.aieov.com
    IN A
    72.14.178.174
    www.aieov.com
    IN A
    45.33.20.235
  • flag-us
    GET
    http://www.aieov.com/logo.gif
    2024-05-31_2bf805c616d61951abb104031bef781c_avoslocker_cobalt-strike_floxif.exe
    Remote address:
    45.56.79.23:80
    Request
    GET /logo.gif HTTP/1.1
    Accept: */*
    Host: www.aieov.com
    Response
    HTTP/1.1 403 Forbidden
    server: openresty/1.13.6.1
    date: Fri, 31 May 2024 04:48:10 GMT
    content-type: text/html
    content-length: 175
    connection: close
  • flag-us
    GET
    http://www.aieov.com/logo.gif
    2024-05-31_2bf805c616d61951abb104031bef781c_avoslocker_cobalt-strike_floxif.exe
    Remote address:
    45.56.79.23:80
    Request
    GET /logo.gif HTTP/1.1
    Accept: */*
    Host: www.aieov.com
    Response
    HTTP/1.1 403 Forbidden
    server: openresty/1.13.6.1
    date: Fri, 31 May 2024 04:48:19 GMT
    content-type: text/html
    content-length: 175
    connection: close
  • flag-us
    GET
    http://www.aieov.com/logo.gif
    2024-05-31_2bf805c616d61951abb104031bef781c_avoslocker_cobalt-strike_floxif.exe
    Remote address:
    45.56.79.23:80
    Request
    GET /logo.gif HTTP/1.1
    Accept: */*
    Host: www.aieov.com
    Response
    HTTP/1.1 403 Forbidden
    server: openresty/1.13.6.1
    date: Fri, 31 May 2024 04:48:28 GMT
    content-type: text/html
    content-length: 175
    connection: close
  • flag-us
    GET
    http://www.aieov.com/logo.gif
    2024-05-31_2bf805c616d61951abb104031bef781c_avoslocker_cobalt-strike_floxif.exe
    Remote address:
    45.56.79.23:80
    Request
    GET /logo.gif HTTP/1.1
    Accept: */*
    Host: www.aieov.com
    Response
    HTTP/1.1 403 Forbidden
    server: openresty/1.13.6.1
    date: Fri, 31 May 2024 04:48:37 GMT
    content-type: text/html
    content-length: 175
    connection: close
  • flag-us
    GET
    http://www.aieov.com/logo.gif
    2024-05-31_2bf805c616d61951abb104031bef781c_avoslocker_cobalt-strike_floxif.exe
    Remote address:
    45.56.79.23:80
    Request
    GET /logo.gif HTTP/1.1
    Accept: */*
    Host: www.aieov.com
    Response
    HTTP/1.1 403 Forbidden
    server: openresty/1.13.6.1
    date: Fri, 31 May 2024 04:48:46 GMT
    content-type: text/html
    content-length: 175
    connection: close
  • flag-us
    GET
    http://www.aieov.com/logo.gif
    2024-05-31_2bf805c616d61951abb104031bef781c_avoslocker_cobalt-strike_floxif.exe
    Remote address:
    45.56.79.23:80
    Request
    GET /logo.gif HTTP/1.1
    Accept: */*
    Host: www.aieov.com
    Response
    HTTP/1.1 403 Forbidden
    server: openresty/1.13.6.1
    date: Fri, 31 May 2024 04:48:55 GMT
    content-type: text/html
    content-length: 175
    connection: close
  • 45.56.79.23:80
    http://www.aieov.com/logo.gif
    http
    2024-05-31_2bf805c616d61951abb104031bef781c_avoslocker_cobalt-strike_floxif.exe
    290 B
     503 B
     5
    4

    HTTP Request

    GET http://www.aieov.com/logo.gif

    HTTP Response

    403
  • 45.56.79.23:80
    http://www.aieov.com/logo.gif
    http
    2024-05-31_2bf805c616d61951abb104031bef781c_avoslocker_cobalt-strike_floxif.exe
    244 B
     503 B
     4
    4

    HTTP Request

    GET http://www.aieov.com/logo.gif

    HTTP Response

    403
  • 45.56.79.23:80
    http://www.aieov.com/logo.gif
    http
    2024-05-31_2bf805c616d61951abb104031bef781c_avoslocker_cobalt-strike_floxif.exe
    290 B
     503 B
     5
    4

    HTTP Request

    GET http://www.aieov.com/logo.gif

    HTTP Response

    403
  • 45.56.79.23:80
    http://www.aieov.com/logo.gif
    http
    2024-05-31_2bf805c616d61951abb104031bef781c_avoslocker_cobalt-strike_floxif.exe
    290 B
     503 B
     5
    4

    HTTP Request

    GET http://www.aieov.com/logo.gif

    HTTP Response

    403
  • 45.56.79.23:80
    http://www.aieov.com/logo.gif
    http
    2024-05-31_2bf805c616d61951abb104031bef781c_avoslocker_cobalt-strike_floxif.exe
    290 B
     503 B
     5
    4

    HTTP Request

    GET http://www.aieov.com/logo.gif

    HTTP Response

    403
  • 45.56.79.23:80
    http://www.aieov.com/logo.gif
    http
    2024-05-31_2bf805c616d61951abb104031bef781c_avoslocker_cobalt-strike_floxif.exe
    290 B
     503 B
     5
    4

    HTTP Request

    GET http://www.aieov.com/logo.gif

    HTTP Response

    403
  • 8.8.8.8:53
    5isohu.com
    dns
    2024-05-31_2bf805c616d61951abb104031bef781c_avoslocker_cobalt-strike_floxif.exe
    56 B
     117 B
     1
    1

    DNS Request

    5isohu.com

  • 8.8.8.8:53
    www.aieov.com
    dns
    2024-05-31_2bf805c616d61951abb104031bef781c_avoslocker_cobalt-strike_floxif.exe
    59 B
     251 B
     1
    1

    DNS Request

    www.aieov.com

    DNS Response

    45.56.79.23
    198.58.118.167
    45.33.23.183
    96.126.123.244
    45.79.19.196
    45.33.2.79
    173.255.194.134
    72.14.185.43
    45.33.18.44
    45.33.30.197
    72.14.178.174
    45.33.20.235

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\Common Files\System\symsrv.dll.000
    Filesize

    175B

    MD5

    1130c911bf5db4b8f7cf9b6f4b457623

    SHA1

    48e734c4bc1a8b5399bff4954e54b268bde9d54c

    SHA256

    eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1

    SHA512

    94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

    Download Submit

  • \Program Files\Common Files\System\symsrv.dll
    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

    Download Submit

  • memory/2228-3-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

    Download

  • memory/2228-11-0x0000000000EB0000-0x0000000000EDB000-memory.dmp

    Filesize

    172KB

    Download

  • memory/2228-12-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

    Download

  • memory/2228-16-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

    Download

  • memory/2228-20-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

    Download

  • memory/2228-26-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

    Download

  • memory/2228-30-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

    Download

  • memory/2228-32-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

    Download

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