Malicious PDF — malware analysis report

Static analysis result for SHA-256 317737742b9ec3a4…

MALICIOUS

PDF

74.2 KB Created: 2021-05-10 08:55:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 6904ecd99f0e0fc18f457c5313a9fefd SHA-1: e72bf75f6cdc9b1039d23e6e15013a6294ec41d2 SHA-256: 317737742b9ec3a48c9ccb24c7eb7f612dfc60f9e416d5155bf3ca93ff929e9c
126 Risk Score

Malware Insights

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

The PDF contains numerous external links, many hosted on disposable domains, indicating a link farm or phishing lure. The ClamAV detection and ML classifier strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a phishing or malware distribution campaign, likely initiated via spearphishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://soxebez.ru/strik?utm_term=panasonic+bread+maker+parts+australia PDF link annotation
    • https://fuvepuzineg.weebly.com/uploads/1/3/4/4/134463404/mumumivega-pedaxabix.pdfIn PDF document text
    • http://tezoxefakalexo.sportsontheweb.net/timofexifitu.pdfIn PDF document text
    • https://topifovav.weebly.com/uploads/1/3/4/5/134595147/towibunagobolifuto.pdfIn PDF document text
    • http://lalikexitaxixix.getenjoyment.net/how_to_setup_logitech_harmony_300_universal_remote.pdfIn PDF document text
    • http://gojevomarokabe.getenjoyment.net/49362332505.pdfIn PDF document text
    • https://rebazizezasij.weebly.com/uploads/1/3/4/5/134586802/1275978.pdfIn PDF document text
    • http://gixipures.sportsontheweb.net/increase_height_exercise_after_18.pdfIn PDF document text
    • https://garowenin.weebly.com/uploads/1/3/4/6/134662298/4d81c80b6.pdfIn PDF document text
    • https://pudijeda.weebly.com/uploads/1/3/4/5/134586696/8871440.pdfIn PDF document text
    • http://namabal.scienceontheweb.net/firudoseporoxezuvo.pdfIn PDF document text
    • https://xorizelipuv.weebly.com/uploads/1/3/1/6/131637744/2508907.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/dapekufoxiraku/how_to_play_war_pigs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e60eb5fa-d0a0-492c-8010-3313bf3e5ecc/vugonikovavefufazerure.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ebf375d7-3fb9-48f1-bcc4-4c589b0849b8/is_fury_on_netflix.pdfIn PDF document text
    • https://e20d271a-53e3-41f9-9180-d6cd5f9fd148.filesusr.com/ugd/6cfc61_56e70f22706441f69009f1a8696b2831.pdf?index=trueIn PDF document text
    • https://441768bb-9839-4df4-8f78-dd1233b527f6.filesusr.com/ugd/7e6080_ff93368c0cf6404bb257ae68bca4c4a3.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c6d526b-5807-49d5-847b-f064b99c9939/sumilifaw.pdfIn PDF document text
    • https://s3.amazonaws.com/viwoxuz/kojomixer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9fa3b0b3-f9bb-4993-90fc-2db7782e61e2/9361544784.pdfIn PDF document text
    • https://f6180879-d31b-499c-8e42-fead7842c491.filesusr.com/ugd/007227_474a5c3c17294c158202f9cb487ce2dd.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8918476-05f0-43e5-aa54-b729a881c75e/free_crochet_virus_shawl_written_pattern.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_off0000e50a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE50A 5424 bytes
SHA-256: 01bda187ea010031bf5ffcaf09151116e786995464536355beeec8402c8da37e
font_01_sfnt_off0000f75e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF75E 10688 bytes
SHA-256: 412f5c2d03f346d86eb78198b414685edb435d9ef56ac9335b722ef4b61677af

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