Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d16adfe5a5a0f02…

MALICIOUS

PDF

43.6 KB Created: 2020-08-20 04:58:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 13d244657b983f49c0a3ed696203345f SHA-1: b5d53defc39b7f7648d854f0ce6682535faa6d3c SHA-256: 0d16adfe5a5a0f02d960c25904f934f1e5a54e888430f988059ab22f77d25e33
202 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though obfuscated, includes a URL that is also present in the malicious redirector link, suggesting a lure to external content. The presence of a large number of PDF links, many generated for SEO purposes, indicates a link farm strategy to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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=how+to++audio+tracks+from+soundcloud In PDF document text
    • http://files.arthurdogsontodd.net/uploads/1/3/1/6/131606563/gilabigajidono-piwijixag.pdfIn PDF document text
    • http://files.murdermysteryparties.com.au/uploads/1/3/1/0/131071167/balaxewixon_wivaram_kumur_lefidu.pdfIn PDF document text
    • http://lixapilu.quintessencemc.com/uploads/1/3/1/4/131406082/doxujorokoraxuwi.pdfIn PDF document text
    • http://files.jackandjamesapiaries.com/uploads/1/3/0/8/130813357/b82af519d40ac.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8190/7870/files/jofova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3438/5303/files/kogogok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2013/9170/files/cmd_hack_codes_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0300/9430/files/17478780052.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4708/4447/files/wufopub.pdfIn macro / runtime command snippet
    • https://cdn.shopify.com/s/files/1/0429/9826/8065/files/84402858513.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0059/3557/files/2956165621.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/63529720688.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8492/2526/files/chopin_nocturne_sheet_music_e_minor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6227/1898/files/ruxemedetutaxula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0867/2423/files/wamodoxupaz.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
    • https://cdn.shopify.com/s/files/1/04In macro / runtime command snippet
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ee6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE6 5048 bytes
SHA-256: 9e5d9b572eb9025f3e59a83604702de34722db683e79297ba03c0fca92e0003d
font_01_sfnt_off00006ffc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FFC 10404 bytes
SHA-256: 814166e28880f75553d80353e4caf5787d815822465323f18518f7e2afbf76e0
font_02_sfnt_off000093a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93A5 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2