Malicious PDF — malware analysis report

Static analysis result for SHA-256 46d0e08fe7da7ce3…

MALICIOUS

PDF

91.3 KB Created: 2021-03-17 22:17:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 91220dcbce3788b619a182386f79f8f8 SHA-1: 1e3c6144aba4bc941fc0850ceada74791d57a1ad SHA-256: 46d0e08fe7da7ce338bb6f7fe1841d0cb283055c22684a2652ec43c3139bab06
196 Risk Score

Malware Insights

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

The PDF contains numerous external links, many of which are part of a link farm, and is flagged as an advance-fee scam lure. The document body, though heavily obfuscated, appears to be a lure related to student worksheets. The presence of multiple external URLs, including one pointing to a potential phishing domain, suggests an attempt to redirect the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://xezojetit.ru/wix?keyword=reproducible+student+worksheet+the+alchemist
    • https://femixazate.weebly.com/uploads/1/3/4/3/134363246/javaxufijuzep_betisepomu_funusutasalase.pdf
    • https://cdn.sqhk.co/pininipata/5if9id9/drum_studio_rental_near_me.pdf
    • https://lajejajutabi.weebly.com/uploads/1/3/6/0/136050508/2486602.pdf
    • https://cdn.sqhk.co/lumolixuwo/5vbfQZY/clean_harbors_aragonite_incineration_facility.pdf
    • https://cdn.sqhk.co/xewafazuk/gipghgf/connecting_math_concepts_math_facts_worksheets.pdf
    • http://ruxenawuxovogu.getenjoyment.net/7465671408.pdf
    • https://cdn.sqhk.co/vibebexez/IhbPid6/3793255779.pdf
    • http://konalofasu.mywebcommunity.org/55903248127.pdf
    • https://cdn.sqhk.co/simirides/ggjbhNl/album_songs_in_tamil.pdf
    • https://tanuroxej.weebly.com/uploads/1/3/4/1/134131309/bepodepetep_gawuzuzifepowav_kemudukaleju_dovufezib.pdf
    • https://cdn.sqhk.co/nujekezitifi/cgdifjb/train_timetable_sydney_to_wollongong_today.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/tadevewuju/a4_sheet_border_design_images.pdf
    • https://s3.amazonaws.com/zarusegibitumet/game_instructions_template_word.pdf
    • https://s3.amazonaws.com/davubewu/what_lies_beneath_movie_480p.pdf
    • https://uploads.strikinglycdn.com/files/1cfeeb1f-5fe9-4f97-b6e1-0e76fb7514c1/kefojejejikex.pdf
    • https://s3.amazonaws.com/wifukedot/map_of_indian_states.pdf
    • https://uploads.strikinglycdn.com/files/2cf8bb73-2765-4814-bf48-439f634c9774/herman_miller_aeron_refurbished_chair.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000126d8.bin
672740607229ca34402d3f11b66be266f38625ecfb6564c26af22144ec39f173		 pdf-font-stream PDF embedded font (sfnt) at offset 0x126D8 5616 bytes
font_01_sfnt_off000139d7.bin
fcfff852759c22188b5123bf596025157dacdd659c0209170a5bd900569c463d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x139D7 11292 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.