Malicious PDF — malware analysis report

Static analysis result for SHA-256 0edec147a1dffe27…

MALICIOUS

PDF

130.3 KB Created: 2021-04-26 21:08:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: a41bde12d39453f0fb0dd82ec840edb2 SHA-1: 7e03fd9c849b3a06836fb951a22386a6930e574e SHA-256: 0edec147a1dffe27a9c64e8f3c49897473b06948e22f4aeb19b80b51a56adf6f
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous embedded URLs, with a primary suspicious URL pointing to 'maypoin.ru'. The document body, though heavily obfuscated, appears to contain keywords related to timelines and potentially lures, consistent with a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://maypoin.ru/strik?utm_term=outlander+voyager+timeline PDF link annotation
    • http://molotkov.site/sosyal_bilgiler_testi_7._snf8x13i.pdfIn PDF document text
    • http://esparks.ru/castellar_font_free_maccjjxd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390051/normal_6034474761f45.pdfIn PDF document text
    • http://mesretly.xyz/58997225317wrton.pdfIn PDF document text
    • http://help-verification.com/calligraphy_writing_marathi_fonts_free_downloadqamcx.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381766/normal_6038c9c5ccbb6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490735/normal_6004be4a45c92.pdfIn PDF document text
    • http://bestunew.xyz/structures_or_why_things_dont_fall_down_wiki7cyd2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445729/normal_6016795cf1b6f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://620678a0-8f5b-407b-881a-8a96a128c1c4.filesusr.com/ugd/25b7a6_308c3827718e4edf86aad17154674014.pdf?index=trueIn PDF document text
    • https://00407fa8-a9ef-4b78-9bbe-46147fc8acf6.filesusr.com/ugd/5ecadc_1e0a28e9eba34686a4a374cb7a346e26.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/widiku/gifoxifevozi.pdfIn PDF document text
    • http://punugituk.epizy.com/araria_map.pdfIn PDF document text
    • https://s3.amazonaws.com/vigevot/distinguish_between_evolutionary_and_revolutionary_change.pdfIn PDF document text
    • http://jonemif.epizy.com/46529877682.pdfIn PDF document text
    • https://336ddc11-c37d-4cd6-9685-7accad2975f7.filesusr.com/ugd/479fa9_fd812f7e4f44431784a9ebd6e21deb2a.pdf?index=trueIn PDF document text
    • http://jewowokadow.rf.gd/32895532443.pdfIn PDF document text
    • https://s3.amazonaws.com/zobuwubedak/how_to_prepare_meals_for_the_week.pdfIn PDF document text
    • http://nesoruzesin.epizy.com/raniwonadulupafoxefudid.pdfIn PDF document text
    • https://041c2bdd-267b-4995-9d72-d071cf2c2b2b.filesusr.com/ugd/ba0b69_d7b327f8544b4425b4d204610bd2dfcf.pdf?index=trueIn PDF document text
    • https://9db8f275-5044-409a-aa1b-3306d9dda9bd.filesusr.com/ugd/361f4b_7cf29f38cc1b4f6bb3b9d401d91e39a7.pdf?index=trueIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001b67a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B67A 5036 bytes
SHA-256: ed22b28a05c568661a692dc96244e3024852814fff67db507b236fcfb5bb2c67
font_01_sfnt_off0001c792.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C792 10980 bytes
SHA-256: 6fc3208a45f676d7cb20bff36b16e438a7921d978fc4b86449edfed779f02ecb
font_02_sfnt_off0001ed1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1ED1A 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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