Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ccc80dde316bdce…

MALICIOUS

PDF

98.8 KB Created: 2021-05-02 22:48:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bd945f2f33f535a7bd9b98d35dc73a41 SHA-1: d2faff17ef41d2e84f34c4478306ec6ee8772914 SHA-256: 9ccc80dde316bdce009e9519b53d688d10e4237c9ef15c7ca0197e81b3ded76b
176 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious content. It contains a large number of external links, suggesting a link farm or phishing attempt. The 'SE_CALLBACK_LURE' heuristic further supports a phishing or scam pretext. While no scripts were directly extracted, the PDF structure and numerous external URIs point towards an attempt to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://nipisod.ru/strik?utm_term=sportdog+bark+collar+instructions
    • https://cdn.sqhk.co/xidupesijij/bhaRib3/76192391222.pdf
    • http://zimezobot.getenjoyment.net/mmpi-2_definition_psychology.pdf
    • https://cdn.sqhk.co/sebazisop/dfWbxje/jewels_jungle_match_3_puzzle_online.pdf
    • https://fusajebotiv.weebly.com/uploads/1/3/4/3/134320253/tarazixixole.pdf
    • http://gekiwejal.scienceontheweb.net/soruzur.pdf
    • https://gojanaribebiw.weebly.com/uploads/1/3/1/4/131437307/jixupob_bamir.pdf
    • http://neridofufuleteg.scienceontheweb.net/mathematical_programming_book.pdf
    • https://cdn.sqhk.co/detaludolef/duhc6VV/stormblades_apk_uptodown.pdf
    • https://dijamolilum.weebly.com/uploads/1/3/5/3/135347404/jisexifu.pdf
    • https://fojumujitugesi.weebly.com/uploads/1/3/4/6/134688065/5376855.pdf
    • https://rufogeror.weebly.com/uploads/1/3/4/6/134664275/9633365.pdf
    • https://cdn.sqhk.co/regomesu/iiZEygg/billiards_city_game_free_download.pdf
    • https://zizuvikugit.weebly.com/uploads/1/3/1/3/131384696/zizowokapaximet-dukajubutoj-fagezesoziz-gimiruripop.pdf
    • http://bapadama.medianewsonline.com/certificat_de_vente_moto.pdf
    • https://cdn.sqhk.co/fipufose/GiarKCR/85102367796.pdf
    • https://gawakugoful.weebly.com/uploads/1/3/4/7/134757428/vibonafifubud.pdf
    • https://muxetomanudone.weebly.com/uploads/1/3/1/4/131406273/safawu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/buxoparadazegu/chromium_os_x32.pdf
    • https://uploads.strikinglycdn.com/files/0e234912-992f-417f-bead-fb8a219c37e6/momelin.pdf
    • https://s3.amazonaws.com/polojuliragam/78136936323.pdf
    • https://uploads.strikinglycdn.com/files/7828ee1f-a4e5-4c85-88b3-1326a2ed64a9/plant_high_school_football_playoff_schedule_mn.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001262b.bin
fb7ccfa54d3e167ab6da10ec38cb2710224eef6b5e4825941667a507eb17d758		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1262B 5548 bytes
font_01_sfnt_off00013912.bin
c74d0281e05fd1f0175d1083b2767694a31b16fc9c3c76066a5e274974616d26		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13912 13876 bytes
font_02_sfnt_off00016790.bin
b1640fad53d764150bc6ac2629a851450ce817854d18eb857e9ca6ebad9fcc24		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16790 16320 bytes

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