Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f075424369c8256…

MALICIOUS

PDF

54.7 KB Created: 2020-08-01 16:57:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 72c1406096ea770bf611175965217a8a SHA-1: 8716ed0aede0ba2f01854cb34d74ea4cfa89616b SHA-256: 4f075424369c825695979a89f72238f5f1bb12512afec17f910bd5e93a68d601
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a direct link to a redirector disguised as a game download. The primary malicious URL is https://ttraff.com/pify?keyword=gta+liberty+city+stories+apk, which likely leads to further malicious content. The presence of numerous links to external PDFs, many hosted on Shopify, suggests a link farm used for SEO manipulation or distributing malicious payloads.

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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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=gta+liberty+city+stories+apk In PDF document text
    • http://files.4lawsfamily.com/uploads/1/3/0/8/130874588/xuguwukob_kotejipalabo.pdfIn PDF document text
    • http://files.916getfit.com/uploads/1/3/0/8/130874023/4015823.pdfIn PDF document text
    • http://files.onegirlmanyideas.com/uploads/1/3/1/3/131382387/7190167.pdfIn PDF document text
    • http://files.babydollsheepaustralia.com/uploads/1/3/0/9/130969097/94cff4b5789.pdfIn PDF document text
    • http://files.handwritingexplore.com/uploads/1/3/0/7/130740356/vameposokumu.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/1/0434/1792/7837/files/56800074031.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9179/5875/files/84910631221.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9429/4171/files/bufotawom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7389/6602/files/57871121562.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2432/6564/files/gupowojisilixog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9119/0167/files/84904333474.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6662/2105/files/pilarefotojawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7264/3491/files/46440677156.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6711/1584/files/42143067190.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9972/4702/files/nevabekabawuwozitizom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8450/5498/files/gibawujal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4686/8891/files/47294168315.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0000a131.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xA131 25172 bytes
SHA-256: f15f466aa91eda0c74fc4706fd0068a522452e8488f1e8a346a67cffc21c1496
font_00_sfnt_off00006d14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D14 5264 bytes
SHA-256: c345954cc7bab5d88557c4e0b46a4c9cd8036f9ac97dd708dd2eb70db83ed46a
font_01_sfnt_off00007f14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F14 9904 bytes
SHA-256: 9fd617449d3081f86cbeefadc561fba537572bda08ca4c138ea0f2f53506e531