Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfb33c5900322578…

MALICIOUS

PDF

59.7 KB Created: 2020-08-10 13:09:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bde97a8acf3fda2c6861e9d11e9d3257 SHA-1: 0a2781a411ad2a699201409b067ff15471838d4f SHA-256: bfb33c59003225787bd4fd2159cbca05d08758e1986055ca2aff3158a421d12f
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources, forming a link farm. One of the primary links directs to a known malicious redirector, ttraff.com, which is designed to lure users to malicious content. The document body, though heavily obfuscated, contains text related to a 'drama script' and the malicious URL, suggesting a social engineering pretext to entice clicks.

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=drama+script+on+dowry+system+in+english+pdf In PDF document text
    • http://files.katrinashreve.com/uploads/1/3/0/7/130776594/zaxisi.pdfIn PDF document text
    • http://foduxow.hotchocolatedispensers.com/uploads/1/3/2/3/132302780/27da255.pdfIn PDF document text
    • http://bazexev.calvaryfamilychurch6600.org/uploads/1/3/1/0/131070722/ripemir.pdfIn PDF document text
    • http://files.mingsbubbletea.com/uploads/1/3/1/8/131856224/lazasekesuganomuseb.pdfIn PDF document text
    • http://files.sophisticatedfit.com/uploads/1/3/0/9/130969061/1592756.pdfIn PDF document text
    • http://fedorahosted.org/lohitIn 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/1/0432/2669/3789/files/fabetule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/muzoguganava.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9313/1425/files/89256232962.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/28821374719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9058/3464/files/panorapoburiwiwetopetaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0175/6323/files/28341577675.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6950/4662/files/tecnicas_de_antisepsia_del_paciente_quirurgico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6945/6028/files/talelogefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3422/1466/files/92387264064.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9575/6693/files/price_action_trading_manual.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 6

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_005_off0000c4c4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xC4C4 8720 bytes
SHA-256: 491d011c876932a4d5c9aabe5e74acf2356075ebcaed59bb07957dca91d2e3e0
font_00_sfnt_off00008df8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DF8 5760 bytes
SHA-256: cfb25379589f84f9d9cd63ac8bd7d0f63d0e11cfcf3fecb3a0a91ac6a801b60d
font_01_sfnt_off0000a17a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA17A 10252 bytes
SHA-256: 9a67a1cc403c15eaeb2cadb523d25f6cb904e13958fe1df529b99eb5476b94af

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