Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5aedea369e95780…

MALICIOUS

PDF

68.0 KB Created: 2021-03-11 18:42:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 21683203837c037cf21cda10fb1f80e4 SHA-1: f2ac413dd888699747bcf86c14f7655beb62ae53 SHA-256: b5aedea369e95780d5d5265b490f4ed79ee3262a443ce423d58ab555d94840a9
96 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating external URI usage and is flagged by a machine learning classifier as malicious. The document body, though partially corrupted, references "fracture ppt template", suggesting a lure. The embedded URLs point to suspicious domains, likely intended to host malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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/123?utm_term=fracture+ppt+template
    • http://trylait.club/gejumo4w8gs.pdf
    • http://mavito.online/dias_feriados_del_mes_de_marzo_2021wr85v.pdf
    • http://huseyincanx.com/19461758238q96jb.pdf
    • http://gaxenop.medianewsonline.com/chess_tactics_book.pdf
    • https://static.s123-cdn-static.com/uploads/4375344/normal_600587ed3a799.pdf
    • https://cdn.sqhk.co/dejijadu/haghSja/ark_of_war_the_war_of_universe_gameplay.pdf
    • https://static.s123-cdn-static.com/uploads/4393489/normal_5ff71a74adcc6.pdf
    • https://cdn.sqhk.co/nalomuxe/fUzjeq2/tifef.pdf
    • https://cdn.sqhk.co/sirejeforox/ihAnjgq/cafe_racer_off_road.pdf
    • http://nebofonuve.mywebcommunity.org/8146863660.pdf
    • http://all-casino.xyz/2020_fundamentals_of_pathology_textrxnro.pdf
    • https://cdn.sqhk.co/fofodafexadu/jimdjcA/hockey_logo_color_by_number_pixel_art_app.pdf
    • http://dojemop.mywebcommunity.org/fefexoruduxozezusunaz.pdf
    • https://cdn.sqhk.co/tinawegu/gmBCick/beror.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/bb458d16-fdaf-4d92-ae87-9bf824eb1299/niwofi.pdf
    • https://uploads.strikinglycdn.com/files/5db945be-a714-4470-8a53-153b577d6920/taco_bell_soft_taco_shell_nutrition.pdf
    • https://uploads.strikinglycdn.com/files/cc29697e-26b5-4d94-b7c2-bcaf88a0c3c0/one_that_eats_shoots_and_leaves_in_classic_joke.pdf
    • https://uploads.strikinglycdn.com/files/608c6473-b6e4-4c7e-99b0-6f1efe064216/how_many_carbs_are_in_a_chicken_chalupa_from_taco_bell.pdf
    • https://uploads.strikinglycdn.com/files/3b920f26-9f5f-43f6-8f44-859ef2f88991/what_is_coaching_philosophy.pdf
    • https://uploads.strikinglycdn.com/files/c328f8ed-3926-46fa-a06e-0d93475394bc/fepoluvoletoponanawo.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_off0000d07a.bin
51cef7ffd74412d9f17951f2c5e5278ae37997fae5baaf06c758c6b355b2377c
pdf-font-stream PDF embedded font (sfnt) at offset 0xD07A 4856 bytes
font_01_sfnt_off0000e0ea.bin
54abe9adffb03d91dae7d1a9de3b53b69283cc3f9613cdfecb26ba740aa488bf
pdf-font-stream PDF embedded font (sfnt) at offset 0xE0EA 10032 bytes