Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cb7ed0e22f108cf…

MALICIOUS

PDF

67.5 KB Created: 2021-03-15 13:23:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 98c7a87ee9ed9292dd75dc19091dba27 SHA-1: 64e803cd2cc78babd59aadac9ed1f44dd14824f3 SHA-256: 2cb7ed0e22f108cf0714025164282c0e378ce74bf1fb4e705abd689c1ff4fb22
126 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs pointing to disposable domains, suggesting a link farm designed to redirect users to malicious content. The document body, though heavily obfuscated, contains metadata related to 'wkhtmltopdf' and a date, indicating it was likely generated programmatically to appear as a report, serving as a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://vilenefex.ru/123?utm_term=narrative+report+buwan+ng+wika+2018 PDF link annotation
    • http://sevezor.scienceontheweb.net/zumuzarimowegititugogivo.pdfIn PDF document text
    • https://cdn.sqhk.co/fuwifemi/haidqFp/29229075595.pdfIn PDF document text
    • http://bridgecommerce.com/botuxubuxolibuf99zq5.pdfIn PDF document text
    • http://dasezin.getenjoyment.net/family_feud_game_points.pdfIn PDF document text
    • http://jabilevij.mypressonline.com/epson_wf_2540_printer_error.pdfIn PDF document text
    • https://xabejopoturidu.weebly.com/uploads/1/3/4/3/134352457/9337775.pdfIn PDF document text
    • http://salonlabs.xyz/how_to_lose_weight_paleo_styleo8mku.pdfIn PDF document text
    • http://vowewudimo.mypressonline.com/how_to_export_garageband_to_wav_ipad.pdfIn PDF document text
    • http://lawexape.mygamesonline.org/45340469234.pdfIn PDF document text
    • http://vodoroding.info/wakakekomojijumunugikufjrk.pdfIn PDF document text
    • https://tukusalo.weebly.com/uploads/1/3/0/9/130969921/666b0b52f19.pdfIn PDF document text
    • http://sitizinudex.getenjoyment.net/18802894216.pdfIn PDF document text
    • http://kfnwejfnkwheklf.space/hormona_luteinizante1t77f.pdfIn PDF document text
    • http://francobusiness.com/85007117505o2xhx.pdfIn PDF document text
    • https://cdn.sqhk.co/noruwotil/eghrhd7/logo_cabify_vector.pdfIn PDF document text
    • https://cdn.sqhk.co/janawezexoj/Ne6IjcK/maze_for_kid.pdfIn PDF document text
    • http://help-violation.com/how_to_replace_tissot_1853_watch_battery9xvuz.pdfIn PDF document text
    • http://kimujedat.mygamesonline.org/californication_bass.pdfIn PDF document text
    • https://tamunalu.weebly.com/uploads/1/3/3/9/133999965/7c9265.pdfIn PDF document text
    • https://gagopono.weebly.com/uploads/1/3/2/6/132681316/pozifazalorukeni.pdfIn PDF document text
    • https://cdn.sqhk.co/wugolekufo/xb6Brjh/jojibemawatuzizup.pdfIn PDF document text
    • http://pikegupima.medianewsonline.com/glands_in_human_body_and_their_functions_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tebaputazaxuva.myartsonline.com/eso_bloodfiend_vampirism.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c96b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC96B 5624 bytes
SHA-256: 60d031dc24ef9bc81783f851988f8e7575792d0ef5ab8cc48bd6aed232f9faef
font_01_sfnt_off0000dcc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCC6 10732 bytes
SHA-256: 2d7ee49f8820cb3af666324c5fac9a0f40ccc353b6ed8b167d371c06e38b12bd

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