Malicious PDF — malware analysis report

Static analysis result for SHA-256 6815587d6af0def5…

MALICIOUS

PDF

57.2 KB Created: 2021-03-12 13:26:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: ecb56b570b76f2b5050ed46aa4e2544f SHA-1: 5e779dd3dc4c3249dbc5dee87db670f8f98b1d2a SHA-256: 6815587d6af0def54393e5b8292807a1c0ff467808b156215ce1a0c88fee7033
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6619

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://baarspo.ru/award?keyword=biblia+pdf+reina+valera+1960+descargar PDF link annotation
    • https://cdn.sqhk.co/pelotuwew/fgfgceo/lightning_bingo_world.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411923/normal_5fd159d7ec17c.pdfIn PDF document text
    • https://kutijodokijo.weebly.com/uploads/1/3/4/7/134706590/0ec16937c82f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423699/normal_5fc8d964c15d5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443576/normal_5ffeba9cc01b5.pdfIn PDF document text
    • https://cdn.sqhk.co/jogeguzotire/NsNgfrE/donkey_sound_ringtone_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/nujodusuwud/hbRjhge/jamedenasamopamitaxibug.pdfIn PDF document text
    • https://xaxarudo.weebly.com/uploads/1/3/0/7/130740130/9720501.pdfIn PDF document text
    • https://cdn.sqhk.co/bapisolel/ihghRha/5251778112.pdfIn PDF document text
    • https://2e907eb7-0cdb-46e5-a4de-ff0e34d1b96e.filesusr.com/ugd/7ea2c5_7595e0f1e60342d283ac069f55615f1e.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf0e26af-4901-4c51-a71c-149667749200/riserirukopeludeno.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f43fd1ff-7c8d-44ba-a84b-ad3c583d771d/80406887507.pdfIn PDF document text
    • http://vezenupu.epizy.com/29193341002.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33ceecd3-c747-460f-85ef-f33014593355/sony_str-dn840_review.pdfIn PDF document text
    • https://1a2149e7-ca7f-4e7c-a584-0e483de6f3af.filesusr.com/ugd/9219f8_0ea4940baae544829662b01357195c13.pdf?index=trueIn PDF document text
    • http://giwolexuki.rf.gd/aws_console_s3.pdfIn PDF document text
    • https://907864b8-ab38-4b43-b195-7646ee37c451.filesusr.com/ugd/c4b402_f9815022a3504ad8953463382024d482.pdf?index=trueIn PDF document text
    • http://mafatiwi.rf.gd/holistic_approach_in_social_work.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea34fad9-5caa-4cb7-a3b0-b0b81d529d30/why_is_my_spectrum_wifi_blinking_blue_and_white.pdfIn PDF document text
    • http://xatamiv.rf.gd/fake_message_app_for_android.pdfIn PDF document text