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Overview

overview

7

Static

static

3

2024-04-29...re.exe

windows7-x64

7

2024-04-29...re.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    138s
  • max time network
    100s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/04/2024, 12:08 UTC

Sharing

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Report Analysis Logs

General

  • Target

    2024-04-29_73069e0f491358f7dfae0edb0da33a06_bkransomware.exe

  • Size

    135KB

  • MD5

    73069e0f491358f7dfae0edb0da33a06

  • SHA1

    29ac4914a4fa37e3712f16301dac76bba2ee943b

  • SHA256

    f41e4801b3d6e727d339a3b21535a705824e1f44e9ce00f3586335b82d00e3c7

  • SHA512

    9bd1f2aaa9fd0f5005734de1cbf43cfc426831254a02d72b223ef10d42b33ca411a9ae2e2081f7e5281bc2e6841b17a22e3f8867144ae17698428776e280f6a8

  • SSDEEP

    1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazT8eX+F4ymoWXzBsxlLdLV+Q6fWoqUTb:ZhpAyazIlyazTTfoWuxp9VoeyIL/07

Score
7/10
persistencespywarestealer

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops file in Windows directory 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-04-29_73069e0f491358f7dfae0edb0da33a06_bkransomware.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-29_73069e0f491358f7dfae0edb0da33a06_bkransomware.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3240
    • C:\Users\Admin\AppData\Local\Temp\hIpF8L0kBuFw710.exe
      C:\Users\Admin\AppData\Local\Temp\hIpF8L0kBuFw710.exe
      2⤵
      • Executes dropped EXE
      PID:1100
    • C:\Windows\CTS.exe
      "C:\Windows\CTS.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:4452

Network

  • flag-us
    DNS
    241.150.49.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    241.150.49.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    g.bing.com
    Remote address:
    8.8.8.8:53
    Request
    g.bing.com
    IN A
    Response
    g.bing.com
    IN CNAME
    g-bing-com.dual-a-0034.a-msedge.net
    g-bing-com.dual-a-0034.a-msedge.net
    IN CNAME
    dual-a-0034.a-msedge.net
    dual-a-0034.a-msedge.net
    IN A
    204.79.197.237
    dual-a-0034.a-msedge.net
    IN A
    13.107.21.237
  • flag-us
    GET
    https://g.bing.com/neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=0b2947b547df4f37b3a134082d29d317&localId=w:9686F947-16CC-59E2-7F90-076D2B78DA93&deviceId=6825828473710710&anid=
    Remote address:
    204.79.197.237:443
    Request
    GET /neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=0b2947b547df4f37b3a134082d29d317&localId=w:9686F947-16CC-59E2-7F90-076D2B78DA93&deviceId=6825828473710710&anid= HTTP/2.0
    host: g.bing.com
    accept-encoding: gzip, deflate
    user-agent: WindowsShellClient/9.0.40929.0 (Windows)
    Response
    HTTP/2.0 204
    cache-control: no-cache, must-revalidate
    pragma: no-cache
    expires: Fri, 01 Jan 1990 00:00:00 GMT
    set-cookie: MUID=076CFB0CCB9D6BE40F61EF7CCABA6A17; domain=.bing.com; expires=Sat, 24-May-2025 12:08:31 GMT; path=/; SameSite=None; Secure; Priority=High;
    strict-transport-security: max-age=31536000; includeSubDomains; preload
    access-control-allow-origin: *
    x-cache: CONFIG_NOCACHE
    accept-ch: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
    x-msedge-ref: Ref A: ACB73C7338A24D83A7E6B3F12F25725E Ref B: LON04EDGE0716 Ref C: 2024-04-29T12:08:31Z
    date: Mon, 29 Apr 2024 12:08:30 GMT
  • flag-us
    GET
    https://g.bing.com/neg/0?action=emptycreative&adUnitId=11730597&publisherId=251978541&rid=0b2947b547df4f37b3a134082d29d317&localId=w:9686F947-16CC-59E2-7F90-076D2B78DA93&deviceId=6825828473710710&anid=
    Remote address:
    204.79.197.237:443
    Request
    GET /neg/0?action=emptycreative&adUnitId=11730597&publisherId=251978541&rid=0b2947b547df4f37b3a134082d29d317&localId=w:9686F947-16CC-59E2-7F90-076D2B78DA93&deviceId=6825828473710710&anid= HTTP/2.0
    host: g.bing.com
    accept-encoding: gzip, deflate
    user-agent: WindowsShellClient/9.0.40929.0 (Windows)
    cookie: MUID=076CFB0CCB9D6BE40F61EF7CCABA6A17
    Response
    HTTP/2.0 204
    cache-control: no-cache, must-revalidate
    pragma: no-cache
    expires: Fri, 01 Jan 1990 00:00:00 GMT
    set-cookie: MSPTC=zdpHqVoEW9goZdsOaPp0_aMV1AhLgcnmGglDeIsUM3k; domain=.bing.com; expires=Sat, 24-May-2025 12:08:31 GMT; path=/; Partitioned; secure; SameSite=None
    strict-transport-security: max-age=31536000; includeSubDomains; preload
    access-control-allow-origin: *
    x-cache: CONFIG_NOCACHE
    accept-ch: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
    x-msedge-ref: Ref A: 1D00CA1DC62B4C7CB2AF2CEEC1E7726B Ref B: LON04EDGE0716 Ref C: 2024-04-29T12:08:31Z
    date: Mon, 29 Apr 2024 12:08:30 GMT
  • flag-us
    GET
    https://g.bing.com/neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=0b2947b547df4f37b3a134082d29d317&localId=w:9686F947-16CC-59E2-7F90-076D2B78DA93&deviceId=6825828473710710&anid=
    Remote address:
    204.79.197.237:443
    Request
    GET /neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=0b2947b547df4f37b3a134082d29d317&localId=w:9686F947-16CC-59E2-7F90-076D2B78DA93&deviceId=6825828473710710&anid= HTTP/2.0
    host: g.bing.com
    accept-encoding: gzip, deflate
    user-agent: WindowsShellClient/9.0.40929.0 (Windows)
    cookie: MUID=076CFB0CCB9D6BE40F61EF7CCABA6A17; MSPTC=zdpHqVoEW9goZdsOaPp0_aMV1AhLgcnmGglDeIsUM3k
    Response
    HTTP/2.0 204
    cache-control: no-cache, must-revalidate
    pragma: no-cache
    expires: Fri, 01 Jan 1990 00:00:00 GMT
    strict-transport-security: max-age=31536000; includeSubDomains; preload
    access-control-allow-origin: *
    x-cache: CONFIG_NOCACHE
    accept-ch: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
    x-msedge-ref: Ref A: 17817C754EF644328120DF6B93E70D2C Ref B: LON04EDGE0716 Ref C: 2024-04-29T12:08:31Z
    date: Mon, 29 Apr 2024 12:08:30 GMT
  • flag-us
    DNS
    133.190.18.2.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    133.190.18.2.in-addr.arpa
    IN PTR
    Response
    133.190.18.2.in-addr.arpa
    IN PTR
    a2-18-190-133deploystaticakamaitechnologiescom
  • flag-us
    DNS
    237.197.79.204.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    237.197.79.204.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    0.159.190.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    0.159.190.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    26.35.223.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    26.35.223.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    133.211.185.52.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    133.211.185.52.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    26.165.165.52.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    26.165.165.52.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    206.23.85.13.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    206.23.85.13.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    0.205.248.87.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    0.205.248.87.in-addr.arpa
    IN PTR
    Response
    0.205.248.87.in-addr.arpa
    IN PTR
    https-87-248-205-0lgwllnwnet
  • flag-us
    DNS
    165.191.110.104.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    165.191.110.104.in-addr.arpa
    IN PTR
    Response
    165.191.110.104.in-addr.arpa
    IN PTR
    a104-110-191-165deploystaticakamaitechnologiescom
  • flag-us
    DNS
    11.227.111.52.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    11.227.111.52.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    tse1.mm.bing.net
    Remote address:
    8.8.8.8:53
    Request
    tse1.mm.bing.net
    IN A
    Response
    tse1.mm.bing.net
    IN CNAME
    mm-mm.bing.net.trafficmanager.net
    mm-mm.bing.net.trafficmanager.net
    IN CNAME
    dual-a-0001.a-msedge.net
    dual-a-0001.a-msedge.net
    IN A
    204.79.197.200
    dual-a-0001.a-msedge.net
    IN A
    13.107.21.200
  • flag-us
    GET
    https://tse1.mm.bing.net/th?id=OADD2.10239370639703_1XZVEAKL3PD7EZGL4&pid=21.2&c=3&w=1080&h=1920&dynsize=1&qlt=90
    Remote address:
    204.79.197.200:443
    Request
    GET /th?id=OADD2.10239370639703_1XZVEAKL3PD7EZGL4&pid=21.2&c=3&w=1080&h=1920&dynsize=1&qlt=90 HTTP/2.0
    host: tse1.mm.bing.net
    accept: */*
    accept-encoding: gzip, deflate, br
    user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36 Edge/18.19041
    Response
    HTTP/2.0 200
    cache-control: public, max-age=2592000
    content-length: 634564
    content-type: image/jpeg
    x-cache: TCP_HIT
    access-control-allow-origin: *
    access-control-allow-headers: *
    access-control-allow-methods: GET, POST, OPTIONS
    timing-allow-origin: *
    report-to: {"group":"network-errors","max_age":604800,"endpoints":[{"url":"https://aefd.nelreports.net/api/report?cat=bingth"}]}&ndcParam=QUZE
    nel: {"report_to":"network-errors","max_age":604800,"success_fraction":0.001,"failure_fraction":1.0}
    accept-ch: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
    x-msedge-ref: Ref A: C050D212E72B4898AE986C8A022F847F Ref B: LON04EDGE0816 Ref C: 2024-04-29T12:10:08Z
    date: Mon, 29 Apr 2024 12:10:08 GMT
  • flag-us
    GET
    https://tse1.mm.bing.net/th?id=OADD2.10239370639702_1LY06F7YB2ZF9D3G5&pid=21.2&c=16&roil=0&roit=0&roir=1&roib=1&w=1920&h=1080&dynsize=1&qlt=90
    Remote address:
    204.79.197.200:443
    Request
    GET /th?id=OADD2.10239370639702_1LY06F7YB2ZF9D3G5&pid=21.2&c=16&roil=0&roit=0&roir=1&roib=1&w=1920&h=1080&dynsize=1&qlt=90 HTTP/2.0
    host: tse1.mm.bing.net
    accept: */*
    accept-encoding: gzip, deflate, br
    user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36 Edge/18.19041
    Response
    HTTP/2.0 200
    cache-control: public, max-age=2592000
    content-length: 637660
    content-type: image/jpeg
    x-cache: TCP_HIT
    access-control-allow-origin: *
    access-control-allow-headers: *
    access-control-allow-methods: GET, POST, OPTIONS
    timing-allow-origin: *
    report-to: {"group":"network-errors","max_age":604800,"endpoints":[{"url":"https://aefd.nelreports.net/api/report?cat=bingth"}]}
    nel: {"report_to":"network-errors","max_age":604800,"success_fraction":0.001,"failure_fraction":1.0}
    accept-ch: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
    x-msedge-ref: Ref A: 2144344BCF6E47778B6E637281C26156 Ref B: LON04EDGE0816 Ref C: 2024-04-29T12:10:08Z
    date: Mon, 29 Apr 2024 12:10:08 GMT
  • flag-us
    DNS
    200.197.79.204.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    200.197.79.204.in-addr.arpa
    IN PTR
    Response
    200.197.79.204.in-addr.arpa
    IN PTR
    a-0001a-msedgenet
  • 204.79.197.237:443
    https://g.bing.com/neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=0b2947b547df4f37b3a134082d29d317&localId=w:9686F947-16CC-59E2-7F90-076D2B78DA93&deviceId=6825828473710710&anid=
    tls, http2
    2.1kB
     10.2kB
     24
    19

    HTTP Request

    GET https://g.bing.com/neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=0b2947b547df4f37b3a134082d29d317&localId=w:9686F947-16CC-59E2-7F90-076D2B78DA93&deviceId=6825828473710710&anid=

    HTTP Response

    204

    HTTP Request

    GET https://g.bing.com/neg/0?action=emptycreative&adUnitId=11730597&publisherId=251978541&rid=0b2947b547df4f37b3a134082d29d317&localId=w:9686F947-16CC-59E2-7F90-076D2B78DA93&deviceId=6825828473710710&anid=

    HTTP Response

    204

    HTTP Request

    GET https://g.bing.com/neg/0?action=emptycreativeimpression&adUnitId=11730597&publisherId=251978541&rid=0b2947b547df4f37b3a134082d29d317&localId=w:9686F947-16CC-59E2-7F90-076D2B78DA93&deviceId=6825828473710710&anid=

    HTTP Response

    204
  • 204.79.197.200:443
    tse1.mm.bing.net
    tls, http2
    1.2kB
     8.1kB
     16
    14
  • 204.79.197.200:443
    https://tse1.mm.bing.net/th?id=OADD2.10239370639702_1LY06F7YB2ZF9D3G5&pid=21.2&c=16&roil=0&roit=0&roir=1&roib=1&w=1920&h=1080&dynsize=1&qlt=90
    tls, http2
    49.9kB
     1.3MB
     963
    960

    HTTP Request

    GET https://tse1.mm.bing.net/th?id=OADD2.10239370639703_1XZVEAKL3PD7EZGL4&pid=21.2&c=3&w=1080&h=1920&dynsize=1&qlt=90

    HTTP Request

    GET https://tse1.mm.bing.net/th?id=OADD2.10239370639702_1LY06F7YB2ZF9D3G5&pid=21.2&c=16&roil=0&roit=0&roir=1&roib=1&w=1920&h=1080&dynsize=1&qlt=90

    HTTP Response

    200

    HTTP Response

    200
  • 8.8.8.8:53
    241.150.49.20.in-addr.arpa
    dns
    72 B
     158 B
     1
    1

    DNS Request

    241.150.49.20.in-addr.arpa

  • 8.8.8.8:53
    g.bing.com
    dns
    56 B
     151 B
     1
    1

    DNS Request

    g.bing.com

    DNS Response

    204.79.197.237
    13.107.21.237

  • 8.8.8.8:53
    133.190.18.2.in-addr.arpa
    dns
    71 B
     135 B
     1
    1

    DNS Request

    133.190.18.2.in-addr.arpa

  • 8.8.8.8:53
    237.197.79.204.in-addr.arpa
    dns
    73 B
     143 B
     1
    1

    DNS Request

    237.197.79.204.in-addr.arpa

  • 8.8.8.8:53
    0.159.190.20.in-addr.arpa
    dns
    71 B
     157 B
     1
    1

    DNS Request

    0.159.190.20.in-addr.arpa

  • 8.8.8.8:53
    26.35.223.20.in-addr.arpa
    dns
    71 B
     157 B
     1
    1

    DNS Request

    26.35.223.20.in-addr.arpa

  • 8.8.8.8:53
    133.211.185.52.in-addr.arpa
    dns
    73 B
     147 B
     1
    1

    DNS Request

    133.211.185.52.in-addr.arpa

  • 8.8.8.8:53
    26.165.165.52.in-addr.arpa
    dns
    72 B
     146 B
     1
    1

    DNS Request

    26.165.165.52.in-addr.arpa

  • 8.8.8.8:53
    206.23.85.13.in-addr.arpa
    dns
    71 B
     145 B
     1
    1

    DNS Request

    206.23.85.13.in-addr.arpa

  • 8.8.8.8:53
    0.205.248.87.in-addr.arpa
    dns
    71 B
     116 B
     1
    1

    DNS Request

    0.205.248.87.in-addr.arpa

  • 8.8.8.8:53
    165.191.110.104.in-addr.arpa
    dns
    74 B
     141 B
     1
    1

    DNS Request

    165.191.110.104.in-addr.arpa

  • 8.8.8.8:53
    11.227.111.52.in-addr.arpa
    dns
    72 B
     158 B
     1
    1

    DNS Request

    11.227.111.52.in-addr.arpa

  • 8.8.8.8:53
    tse1.mm.bing.net
    dns
    62 B
     173 B
     1
    1

    DNS Request

    tse1.mm.bing.net

    DNS Response

    204.79.197.200
    13.107.21.200

  • 8.8.8.8:53
    200.197.79.204.in-addr.arpa
    dns
    73 B
     106 B
     1
    1

    DNS Request

    200.197.79.204.in-addr.arpa

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml
    Filesize

    392KB

    MD5

    afbafdc41143083ba2a1c8359d2f94de

    SHA1

    19b91e11bf6570eecd3437588fff473aa101eb6a

    SHA256

    b6f60cae03d76083af6c4ec59d7da3f2eb3f7a2e7765dbed386822fe5cc69c0f

    SHA512

    dbaf06fbb0318bc16bb9d5006296d40613c5a3a8fdd4a418a99c9bb8a4632f15ef5fdfb69068e253ff12b355166265fd2d60ff019d244e4f0b91b63f7b1bfe47

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\hIpF8L0kBuFw710.exe
    Filesize

    64KB

    MD5

    e97c622b03fb2a2598bf019fbbe29f2c

    SHA1

    32698bd1d3a0ff6cf441770d1b2b816285068d19

    SHA256

    5c1af46c7300e87a73dacf6cf41ce397e3f05df6bd9c7e227b4ac59f85769160

    SHA512

    db70c62fb35a8e5b005f13b57c1ebbf6c465f6ff0524422294c43e27fb4aa79379dc1e300ad11dc2354405c43b192ae06b91c0f525a1f2617e4d14673651a87d

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  • C:\Windows\CTS.exe
    Filesize

    71KB

    MD5

    66df4ffab62e674af2e75b163563fc0b

    SHA1

    dec8a197312e41eeb3cfef01cb2a443f0205cd6e

    SHA256

    075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163

    SHA512

    1588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25

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