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Overview

overview

9

Static

static

a924257058...ea.exe

windows7-x64

9

a924257058...ea.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    45s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    28/11/2022, 07:17 UTC

Sharing

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General

  • Target

    a924257058d90fc66d2166658130e1259e2cda19944b3066322528debd72ffea.exe

  • Size

    512KB

  • MD5

    af6c5f7306cc871f886c13ee82a0808b

  • SHA1

    6afdf9d5226bde7c292616b3836a30e51b836093

  • SHA256

    a924257058d90fc66d2166658130e1259e2cda19944b3066322528debd72ffea

  • SHA512

    e5c122ed6d1898bc1d041ee7ae652ff634087e944e6fcc39adbff3461e5329404a5d8967cd09c2c92f87dac2f87cb68ca6a8aa18fbcbad2b1f6ed7a6621fd4df

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4z:0+h9OY70z+warul3E4z

Score
9/10
evasion

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
    evasion
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
    evasionspywaretrojan
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a924257058d90fc66d2166658130e1259e2cda19944b3066322528debd72ffea.exe
    "C:\Users\Admin\AppData\Local\Temp\a924257058d90fc66d2166658130e1259e2cda19944b3066322528debd72ffea.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Loads dropped DLL
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1908
    • C:\Users\Admin\AppData\Local\Temp\n2239\s2239.exe
      "C:\Users\Admin\AppData\Local\Temp\n2239\s2239.exe" 7847344f1950f506f9bfb324SsGdDxBjznMpb+pGzyS8cZnqn1P6t7IJ6Ar1/oDEv4fgkFntuKGw8xQO4gsZ3+l+mbVeY5I63WfuylxJjT1l4dAfAfxPqbiPprgyaOnKhBjBqr4y1ma7M+jnz/OdmqiicOJ9D9DC1rulnYiwrP/tnQHZ /v "C:\Users\Admin\AppData\Local\Temp\a924257058d90fc66d2166658130e1259e2cda19944b3066322528debd72ffea.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1048

Network

  • flag-unknown
    DNS
    ocsp.thawte.com
    s2239.exe
    Remote address:
    8.8.8.8:53
    Request
    ocsp.thawte.com
    IN A
    Response
    ocsp.thawte.com
    IN CNAME
    ocsp-ds.ws.symantec.com.edgekey.net
    ocsp-ds.ws.symantec.com.edgekey.net
    IN CNAME
    e8218.dscb1.akamaiedge.net
    e8218.dscb1.akamaiedge.net
    IN A
    23.51.123.27
  • flag-unknown
    DNS
    crl.thawte.com
    s2239.exe
    Remote address:
    8.8.8.8:53
    Request
    crl.thawte.com
    IN A
    Response
    crl.thawte.com
    IN CNAME
    crl-symcprod.digicert.com
    crl-symcprod.digicert.com
    IN CNAME
    cs9.wac.phicdn.net
    cs9.wac.phicdn.net
    IN A
    72.21.91.29
  • flag-unknown
    GET
    http://crl.thawte.com/ThawtePCA.crl
    s2239.exe
    Remote address:
    72.21.91.29:80
    Request
    GET /ThawtePCA.crl HTTP/1.1
    Connection: Keep-Alive
    Accept: */*
    User-Agent: Microsoft-CryptoAPI/6.1
    Host: crl.thawte.com
    Response
    HTTP/1.1 200 OK
    Accept-Ranges: bytes
    Age: 2020
    Cache-Control: public, max-age=3600
    Content-Type: application/pkix-crl
    Date: Tue, 29 Nov 2022 11:20:42 GMT
    Last-Modified: Tue, 29 Nov 2022 10:47:02 GMT
    Server: ECS (bsa/EB13)
    X-Cache: HIT
    X-Content-Type-Options: nosniff
    X-Frame-Options: SAMEORIGIN
    X-XSS-Protection: 1; mode=block
    Content-Length: 604
  • flag-unknown
    DNS
    th.symcd.com
    s2239.exe
    Remote address:
    8.8.8.8:53
    Request
    th.symcd.com
    IN A
    Response
    th.symcd.com
    IN CNAME
    ocsp-ds.ws.symantec.com.edgekey.net
    ocsp-ds.ws.symantec.com.edgekey.net
    IN CNAME
    e8218.dscb1.akamaiedge.net
    e8218.dscb1.akamaiedge.net
    IN A
    23.51.123.27
  • flag-unknown
    DNS
    th.symcb.com
    s2239.exe
    Remote address:
    8.8.8.8:53
    Request
    th.symcb.com
    IN A
    Response
    th.symcb.com
    IN CNAME
    crl-symcprod.digicert.com
    crl-symcprod.digicert.com
    IN CNAME
    cs9.wac.phicdn.net
    cs9.wac.phicdn.net
    IN A
    72.21.91.29
  • flag-unknown
    DNS
    e4844.northstar.api.socdn.com
    s2239.exe
    Remote address:
    8.8.8.8:53
    Request
    e4844.northstar.api.socdn.com
    IN A
    Response
    e4844.northstar.api.socdn.com
    IN CNAME
    615321.parkingcrew.net
    615321.parkingcrew.net
    IN A
    13.248.148.254
    615321.parkingcrew.net
    IN A
    76.223.26.96
  • flag-unknown
    GET
    http://e4844.northstar.api.socdn.com/installer/4f75e8eb-a354-4d3f-844a-77895bc06f2f/13473876/config
    s2239.exe
    Remote address:
    13.248.148.254:80
    Request
    GET /installer/4f75e8eb-a354-4d3f-844a-77895bc06f2f/13473876/config HTTP/1.1
    User-Agent: DownloadMR/3.1.37 (MSIE 9.11;Windows NT 6.1.7601 SP1;WOW64;.NET CLR 2.0.50727 SP2; .NET CLR 3.0 SP2; .NET CLR 3.5 SP1; .NET CLR 4; .NET CLR 4.0;DB IE11;m=System Product Name;u=Admin;northstar;ecc5fae7-ff07-a8a9-c1c2-8c33d4c2afa4)
    Accept-Language: en-US
    Host: e4844.northstar.api.socdn.com
    Connection: Keep-Alive
    Response
    HTTP/1.1 200 OK
    Date: Tue, 29 Nov 2022 11:21:09 GMT
    Content-Type: text/html; charset=UTF-8
    Transfer-Encoding: chunked
    Connection: keep-alive
    Server: nginx
    Vary: Accept-Encoding
    Vary: Accept-Encoding
    X-Redirect: zeropark_yahoo
    X-Template: tpl_CleanPeppermintBlack_twoclick
    X-Language: english
    Accept-CH: viewport-width
    Accept-CH: dpr
    Accept-CH: device-memory
    Accept-CH: rtt
    Accept-CH: downlink
    Accept-CH: ect
    Accept-CH: ua
    Accept-CH: ua-full-version
    Accept-CH: ua-platform
    Accept-CH: ua-platform-version
    Accept-CH: ua-arch
    Accept-CH: ua-model
    Accept-CH: ua-mobile
    Accept-CH-Lifetime: 30
  • flag-unknown
    POST
    http://e4844.northstar.api.socdn.com/installer/4f75e8eb-a354-4d3f-844a-77895bc06f2f/13473876/event
    s2239.exe
    Remote address:
    13.248.148.254:80
    Request
    POST /installer/4f75e8eb-a354-4d3f-844a-77895bc06f2f/13473876/event HTTP/1.1
    User-Agent: DownloadMR/3.1.37 (MSIE 9.11;Windows NT 6.1.7601 SP1;WOW64;.NET CLR 2.0.50727 SP2; .NET CLR 3.0 SP2; .NET CLR 3.5 SP1; .NET CLR 4; .NET CLR 4.0;DB IE11;m=System Product Name;u=Admin;northstar;ecc5fae7-ff07-a8a9-c1c2-8c33d4c2afa4)
    Accept-Language: en-US
    Content-Type: application/x-www-form-urlencoded
    Host: e4844.northstar.api.socdn.com
    Content-Length: 12691
    Expect: 100-continue
    Response
    HTTP/1.1 403 Forbidden
    Date: Tue, 29 Nov 2022 11:21:10 GMT
    Content-Type: text/html
    Content-Length: 548
    Connection: keep-alive
    Server: nginx
    Vary: Accept-Encoding
  • 23.51.123.27:80
    ocsp.thawte.com
    s2239.exe
    152 B
     3
  • 72.21.91.29:80
    http://crl.thawte.com/ThawtePCA.crl
    http
    s2239.exe
    363 B
     2.1kB
     5
    4

    HTTP Request

    GET http://crl.thawte.com/ThawtePCA.crl

    HTTP Response

    200
  • 23.51.123.27:80
    th.symcd.com
    s2239.exe
    152 B
     3
  • 72.21.91.29:80
    th.symcb.com
    s2239.exe
    152 B
     3
  • 13.248.148.254:80
    http://e4844.northstar.api.socdn.com/installer/4f75e8eb-a354-4d3f-844a-77895bc06f2f/13473876/event
    http
    s2239.exe
    17.5kB
     12.2kB
     23
    25

    HTTP Request

    GET http://e4844.northstar.api.socdn.com/installer/4f75e8eb-a354-4d3f-844a-77895bc06f2f/13473876/config

    HTTP Response

    200

    HTTP Request

    POST http://e4844.northstar.api.socdn.com/installer/4f75e8eb-a354-4d3f-844a-77895bc06f2f/13473876/event

    HTTP Response

    403
  • 8.8.8.8:53
    ocsp.thawte.com
    dns
    s2239.exe
    61 B
     163 B
     1
    1

    DNS Request

    ocsp.thawte.com

    DNS Response

    23.51.123.27

  • 8.8.8.8:53
    crl.thawte.com
    dns
    s2239.exe
    60 B
     144 B
     1
    1

    DNS Request

    crl.thawte.com

    DNS Response

    72.21.91.29

  • 8.8.8.8:53
    th.symcd.com
    dns
    s2239.exe
    58 B
     160 B
     1
    1

    DNS Request

    th.symcd.com

    DNS Response

    23.51.123.27

  • 8.8.8.8:53
    th.symcb.com
    dns
    s2239.exe
    58 B
     142 B
     1
    1

    DNS Request

    th.symcb.com

    DNS Response

    72.21.91.29

  • 8.8.8.8:53
    e4844.northstar.api.socdn.com
    dns
    s2239.exe
    75 B
     143 B
     1
    1

    DNS Request

    e4844.northstar.api.socdn.com

    DNS Response

    13.248.148.254
    76.223.26.96

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n2239\s2239.exe
    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\n2239\s2239.exe
    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

    Download Submit

  • \Users\Admin\AppData\Local\Temp\n2239\s2239.exe
    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

    Download Submit

  • \Users\Admin\AppData\Local\Temp\n2239\s2239.exe
    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

    Download Submit

  • \Users\Admin\AppData\Local\Temp\n2239\s2239.exe
    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

    Download Submit

  • \Users\Admin\AppData\Local\Temp\n2239\s2239.exe
    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

    Download Submit

  • memory/1048-62-0x000007FEF3FB0000-0x000007FEF49D3000-memory.dmp

    Filesize

    10.1MB

    Download

  • memory/1048-63-0x000007FEF2F10000-0x000007FEF3FA6000-memory.dmp

    Filesize

    16.6MB

    Download

  • memory/1048-64-0x000007FEFBA01000-0x000007FEFBA03000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1048-66-0x0000000000AB6000-0x0000000000AD5000-memory.dmp

    Filesize

    124KB

    Download

  • memory/1048-65-0x000007FEEE2F0000-0x000007FEEF17F000-memory.dmp

    Filesize

    14.6MB

    Download

  • memory/1048-67-0x000007FEF2430000-0x000007FEF271A000-memory.dmp

    Filesize

    2.9MB

    Download

  • memory/1048-68-0x0000000000AB6000-0x0000000000AD5000-memory.dmp

    Filesize

    124KB

    Download

  • memory/1908-54-0x00000000753C1000-0x00000000753C3000-memory.dmp

    Filesize

    8KB

    Download

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