Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9c2fd07b6396946…

MALICIOUS

PDF

201.1 KB Created: 2020-08-02 05:52:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: abb8442c78b31966dc28f065d785d289 SHA-1: cc25e37fe605293091e604a8bae5919ab04ea278 SHA-256: b9c2fd07b63969468fda903cfd70be11de2a1e2f7590c93e311c5504acc2b196
142 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=k+episode+1+english+dub'. The document body, though heavily obfuscated, contains fragments that suggest a lure related to media content and potentially urgency, as indicated by the 'SE_URGENCY_LURE' heuristic. The primary attack vector appears to be directing the user to a malicious URL, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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.
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=k+episode+1+english+dub In PDF document text
    • http://files.shopkoco.com/uploads/1/3/1/4/131452938/maligosoj_dijeniwigapo_remupevupoteka_tewajetatuvere.pdfIn PDF document text
    • http://files.vibedanceacademy.org/uploads/1/3/1/8/131856949/3f6aec994f7a25.pdfIn PDF document text
    • http://files.theyarnandi.com/uploads/1/3/0/8/130814258/pubazadutavunediwu.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/1/0437/1585/4490/files/zomobiponeriduzisa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3269/9302/files/lekixop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1972/1115/files/lidufunumotufibepikire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2277/7496/files/6130959503.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9765/7248/files/os_walk_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/19194700937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0622/0712/files/teary_eyed_emoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8220/3801/files/48877897161.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6837/2632/files/xalasosawodaxetaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56666804065.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00014a5a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x14A5A 132712 bytes
SHA-256: a5894f8313fbf41b52dc1c36544f0b7ca17cefb3d915bb898fa2003b20254376
font_01_sfnt_off0002d16e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D16E 5076 bytes
SHA-256: 9d0b5c5e64e2f34b521c347bdc23ba177ead4a42044810d09b38cb1b26d2e13f
font_02_sfnt_off0002e2ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E2BA 16844 bytes
SHA-256: c193071f1b2dfb0937e10772fc67948ae0651bd4e33770b5e7ad925cd61991df

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