Malicious PDF — malware analysis report

Static analysis result for SHA-256 649850f8dd619e45…

MALICIOUS

PDF

50.6 KB Created: 2021-03-16 07:28:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: a8c88d75a8db22ebe3c5f89f2196a905 SHA-1: d6b81c682ba495bf8fedc609013c8f4809b2b808 SHA-256: 649850f8dd619e45525c5ed3e3053ece306d4c6176d2781e12a9e8d393207196
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 0.7338

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/aws?utm_term=can+i+get+a+real+id+driver%2527s+license+in+nj PDF link annotation
    • https://cdn.sqhk.co/labifikup/cHzggIz/pewdiepie_tuber_simulator_pixelings_list_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/sifapudoxig/CGjdijI/89585911219.pdfIn PDF document text
    • http://sasavojaraw.iblogger.org/jarunelav.pdfIn PDF document text
    • https://cdn.sqhk.co/wujugojuse/tVxichh/barbershop_3_streaming.pdfIn PDF document text
    • https://cdn.sqhk.co/dodazija/iihgdih/judas_priest_hellrider_guitar_tab.pdfIn PDF document text
    • https://409b2d23-5c1d-402e-97df-26c0da9299b0.filesusr.com/ugd/2e3d42_55d62c102db14f5aabbeec5bdceebc8d.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f3b6389-4065-4f37-9c9b-b330a9d89876/80941196467.pdfIn PDF document text
    • https://968bac2e-1409-45a7-bd11-2c37eba47390.filesusr.com/ugd/c81504_468053d66dfe441ba47e8899d50ff67b.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b44aeca-9cd4-4a92-bc90-e5ead21a2913/networking_engineer_interview_questions_and_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed08a4a0-2cc3-4176-91f2-ae8f71359e81/32941654513.pdfIn PDF document text
    • http://gidovofivoj.epizy.com/mubelixesunefolajujop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/88c76702-e64d-46fd-8e18-5ce46c7ad62c/21066614888.pdfIn PDF document text
    • http://xibadon.rf.gd/batulim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f3e98e59-a996-4324-91c6-837bf6db39a4/87790117634.pdfIn PDF document text
    • http://tojegazanet.rf.gd/luzijafewejidom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1f6a8d6-08f4-468e-b22d-dcbfc1fc0adf/geometric_invariant_theory_springer.pdfIn PDF document text
    • http://bijezum.epizy.com/pdf_to_word_macedonian.pdfIn PDF document text
    • https://459fb65c-52af-4c88-885a-43a44fbeaf25.filesusr.com/ugd/6a7407_e99cb657ca374e48b127272bf02b0414.pdf?index=trueIn PDF document text