Malicious PDF — malware analysis report

Static analysis result for SHA-256 94e6a220599a803b…

MALICIOUS

PDF

63.8 KB Created: 2021-03-16 01:07:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 33380c0475b11d5121ad99e54e544136 SHA-1: 8b00248cde619e3f47e2fec7f8ce1d0493f0063c SHA-256: 94e6a220599a803b8fc3acfe95a9439d2a4bf85a2f9c456bbe40b84c48ba5b04
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan and also by an ML classifier. It contains numerous external links, with a critical heuristic identifying it as a PDF SEO link farm. The primary malicious URLs identified are golowaki.ru and zodelem.mygamesonline.org, suggesting a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6626

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://golowaki.ru/award?keyword=perry+anderson+el+estado+absolutista+pdf
    • http://zodelem.mygamesonline.org/timijokitigoja.pdf
    • http://juzupujexeta.22web.org/what_courses_to_take_to_become_an_interior_designer.pdf
    • https://cdn.sqhk.co/loxinesupiva/eWhagca/gusotafexaz.pdf
    • http://kopogaxepaku.sportsontheweb.net/tixoxenowofet.pdf
    • https://cdn.sqhk.co/folamudoj/2bpxvha/fire_emblem_heroes_twitter_espanol.pdf
    • http://gunudatur.22web.org/amcham_membership_directory.pdf
    • https://cdn.sqhk.co/nudavede/Uifhchh/dragon_eternity_mod_apk.pdf
    • https://s3.amazonaws.com/sedimeraxufi/biffy_clyro_ellipsis_free.pdf
    • http://dakinopelijanup.rf.gd/mamimamufini.pdf
    • https://7aff118d-26f6-4d76-9bc9-1838009e7274.filesusr.com/ugd/f80014_fa1612936f704307a210f328460f819c.pdf?index=true
    • https://091a8774-b5bd-4fb7-8799-8d1ca0ca44ad.filesusr.com/ugd/8716ab_266889010a91402a8617ca233ac3b54b.pdf?index=true
    • http://zupitatip.atwebpages.com/34300648326.pdf
    • http://tejojode.rf.gd/zijevuzivobosoxubiravax.pdf
    • https://1682489e-d94b-4f22-b6a6-c8ecb623ca2e.filesusr.com/ugd/5f226e_31b580633e62428fa6b154d533b8b7f3.pdf?index=true
    • https://314a97e4-cc7b-499c-a999-42b15fb65c39.filesusr.com/ugd/fa4a73_5dbe48e18e9446cfb7f0423a9cb3bf92.pdf?index=true
    • https://s3.amazonaws.com/sedimeraxufi/nixokezedulu.pdf
    • https://s3.amazonaws.com/piwanisaj/cervical_cancer_screening_uptake.pdf
    • https://357b8bef-7330-4cfe-b31d-389db25c4d5a.filesusr.com/ugd/4c76bf_d5aa2dac6e504e4fbb06085bcb81ae34.pdf?index=true
    • https://850a36a1-966c-46c3-86ed-e15bcb5778a7.filesusr.com/ugd/ede58b_a46e8135db3d409f9d6338f44c2708a6.pdf?index=true
    • http://bugenerefajujus.atwebpages.com/mitijatebizapasivezebo.pdf

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