Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2abb74facf09503…

MALICIOUS

PDF

46.6 KB Created: 2020-08-20 18:16:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aaa9f1be7105b988abfc3b8947a931ee SHA-1: 8b2374ff319f762ad1fe033be813162afceeb4b3 SHA-256: b2abb74facf095038871a41788610a2d9a44f070875171a9179ccf12056b0577
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains multiple embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=beep+test++free'. The document body, though heavily obfuscated, contains text fragments that appear to be related to the lure. The presence of numerous external links, many hosted on Shopify, suggests a link farm or a method to obscure the final malicious destination. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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://ttraff.com/pify?keyword=beep+test++free In PDF document text
    • http://vidomaxez.wellsheltered.com/uploads/1/3/2/7/132710601/21c3222a8c1d23a.pdfIn PDF document text
    • http://files.proyecto1867.com/uploads/1/3/2/3/132302913/mozolejemi-vexiramiga-leselu.pdfIn PDF document text
    • http://files.jaimeselwood.com/uploads/1/3/1/1/131164129/54eca7c03ae.pdfIn PDF document text
    • http://files.meganhuylo.com/uploads/1/3/1/8/131871433/046ded0e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0993/2440/files/thug_life_bury_me_ag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6593/3985/files/sazaxitalaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/9549/5590/files/list_of_important_days_in_a_year.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2519/5427/files/witilenamutibi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2562/8316/files/m777_howitzer_technical_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4420/8789/files/65060813888.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6656/3487/files/guia_ceneval_medicina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6914/4230/files/fifekitadusimaga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7387/2807/files/78996762908.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0917/7762/files/miditupegujijujedewi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9848/6424/files/9222067546.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6135/3371/files/banned_books_challenging_our_freedom_to_read.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2014/7095/files/pile_load_test_report_format.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000648d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x648D 4704 bytes
SHA-256: d538135bce3002fddc85e33aa7173d2e809375ce188c21c6229c1e094785dd3a
font_01_sfnt_off000074a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74A0 10524 bytes
SHA-256: 97be9784f26160da56c29512f22cd2ffa79f080098245b0a529cf16f7cc8b377
font_02_sfnt_off000098c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98C2 16064 bytes
SHA-256: 87bac7116cce17a810d08151410b930347e6d8b8f011720992609d67c697163a

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