Malicious PDF — malware analysis report

Static analysis result for SHA-256 150bbf944757ab5b…

MALICIOUS

PDF

47.3 KB Created: 2020-08-01 17:32:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a2f518f1e259b2ab6358c3fc1f634ec7 SHA-1: dc3db4ac90ff20be04170375c6819bcc9f2f1cbc SHA-256: 150bbf944757ab5b5685f3551446bdbeed39c732c8efe86d1d31a14039b686ab
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) that is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL, suggesting a phishing or scam lure. 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.
  • 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.cc/pify?keyword=mac+the+ripper In PDF document text
    • http://files.onenationingod.net/uploads/1/3/2/6/132681340/5212827.pdfIn PDF document text
    • http://files.jiovanncarrasco.com/uploads/1/3/2/7/132741334/vepamexipogow.pdfIn PDF document text
    • http://files.happysleepermattress.com/uploads/1/3/0/7/130775866/3025766.pdfIn PDF document text
    • http://files.thecompleteflute.com.au/uploads/1/3/1/8/131857117/xumewipamejifev.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/1/0438/4115/9333/files/55820047385.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8312/1319/files/23697151956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5458/7288/files/54656347963.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5488/1185/files/pokemon_mystery_dungeon_rom_hacks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9975/0560/files/lowodobabagevexaweso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3617/0657/files/dikezejejofibuzobib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2990/6079/files/97457150106.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8168/6437/files/nujijemagapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78214852322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sibubemazalomasedexikeme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7002/9975/files/44577067953.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 7

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007bff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BFF 4816 bytes
SHA-256: 9ac50d9b5b28f2829b08c026d708bd354de3af67d9284dd5129af0bb5458d8ce
font_01_sfnt_off00008c64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C64 10476 bytes
SHA-256: 1df0f535ac3554c5224f228318aec13494191c10d8e2cfbc850ff31085a01413

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