Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b37c24ec60e876c…

MALICIOUS

PDF

62.4 KB Created: 2020-08-14 05:57:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d879897825de406b4073753d9b585007 SHA-1: 34e2263f8f94813c366531f4a59c65d781176a59 SHA-256: 3b37c24ec60e876c71afe1d41cd48266a7ea8fa88dea2cc874c242daf17309ff
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.001 Malicious Link

The PDF contains a high number of embedded links, many pointing to Shopify domains, but one critical link redirects through ttraff.cc. This redirector is flagged as malicious. The document body, though heavily obfuscated, contains the malicious URL and text suggesting a lure related to 'antivirus software'. The presence of a callback lure heuristic further supports a phishing or scam attempt. No scripts were extracted from this sample.

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.
  • 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.
  • 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) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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.cc/pify?keyword=best+android+mobile+phone+antivirus+software In PDF document text
    • http://xenetig.meyersmagneticjewelry.com/uploads/1/3/0/7/130739061/zumeniratinotezamuf.pdfIn PDF document text
    • http://files.machinecrazyforever.com/uploads/1/3/1/1/131164063/valanuzodo.pdfIn PDF document text
    • http://files.davidandruth.org/uploads/1/3/0/9/130969262/1136974.pdfIn PDF document text
    • http://bulatakup.miracleoncraigstreet.org/uploads/1/3/2/6/132681670/gobobup.pdfIn PDF document text
    • http://jatag.armchairacademia.org/uploads/1/3/0/8/130813821/mazireguvis.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/1/0432/9914/3838/files/sotejanil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3293/6605/files/41519856711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5505/5002/files/84798424710.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/3785448733.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4960/7590/files/berliner_platz_4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6902/2109/files/avengers_theme_song_piano_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9017/3349/files/rewamukema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8475/0743/files/saturuguvogipugukane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0783/5292/files/powershot_g7x_mark_ii_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1551/1968/files/vujezisijilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8548/6485/files/vulowasana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7189/6741/files/bafg_antrag_hamburg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4065/2960/files/budipimeguzat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3251/8549/files/66704787279.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 2

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_off0000a7c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA7C4 5504 bytes
SHA-256: 7924745ff06b2cc295d25134986fa8434631789287bee8a7c2198f590b9385ef
font_01_sfnt_off0000ba55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA55 10288 bytes
SHA-256: 9034676b20cb508a8f519de843776b3cc1b4cc91df85562909f34190118d6436
font_02_sfnt_off0000dd88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD88 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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