Malicious PDF — malware analysis report

Static analysis result for SHA-256 980ad26d78c4daf6…

MALICIOUS

PDF

80.5 KB Created: 2021-02-11 23:42:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: b275015a11a1ad7402419f06fa198a5d SHA-1: 34ccd048882668e9cfbe40fefe537f850eca66cb SHA-256: 980ad26d78c4daf666b178d9b361adc7cf1b0976bed09f9bf3aeceab16fa1a06
126 Risk Score

Malware Insights

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

The sample is a PDF document flagged by ML classifiers and ClamAV as malicious. It contains numerous embedded URLs pointing to disposable domains and link farms, indicating a phishing or malware distribution attempt. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly suggests this is a malicious lure designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/wix?keyword=hill+district+pittsburgh PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4449618/normal_5ff7cfbaa1252.pdfIn PDF document text
    • https://xejapekedom.weebly.com/uploads/1/3/4/8/134864907/187baa27b0f.pdfIn PDF document text
    • http://easy-money-cash.space/zisenabilipimalobaizywv.pdfIn PDF document text
    • https://cdn.sqhk.co/zitajazasu/ggjduhi/parkour_games_online_unblocked.pdfIn PDF document text
    • http://7lessons.website/wiban6uxop.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410674/normal_5fe794908528a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413122/normal_5fe2b9a984e22.pdfIn PDF document text
    • http://medicalpracticementor.com/complex_fractions_worksheets_for_7th_graders4bmql.pdfIn PDF document text
    • https://cdn.sqhk.co/vekosozob/KBjdGAx/xipejanovabafevijufijag.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408599/normal_5ff13ca32681a.pdfIn PDF document text
    • http://onesmall.space/bozinumogisameriluwu7ph.pdfIn PDF document text
    • https://jokuduzasaru.weebly.com/uploads/1/3/1/3/131381103/xatomaroriwi.pdfIn PDF document text
    • https://jitotapo.weebly.com/uploads/1/3/5/3/135314003/mamugupe-siwepisaf-fuxibakun-wowejivolawa.pdfIn PDF document text
    • https://cdn.sqhk.co/zixapegof/jb8hghe/29571195345.pdfIn PDF document text
    • http://testertumentum.space/13048832024ycn8x.pdfIn PDF document text
    • http://bestunew.xyz/6459361591601q36.pdfIn PDF document text
    • https://sudopefizumizer.weebly.com/uploads/1/3/1/3/131383323/bufavogabefe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xoxaneral/how_to_format_corrupted_sd_card.pdfIn PDF document text
    • https://s3.amazonaws.com/vinivuxo/anuria_poliuria_oliguria_dysuria.pdfIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fe0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE0A 5224 bytes
SHA-256: d74ce9bdaf1fa6a9909abbb6a5ace5febe5446710dee8b336f9565c2478badfc
font_01_sfnt_off00010fbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FBE 10708 bytes
SHA-256: 841f6c3c55010c4a9daeeb189aa18bc8224694f6bb380acd89c5170bec78f5d0

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