Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb29d3539be725e3…

MALICIOUS

PDF

132.2 KB Created: 2020-08-14 14:20:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7962a8bfe40f5400317cb0ba195b57e7 SHA-1: 3139c89d50bbd05cc60cf60f2f28bfd355997502 SHA-256: fb29d3539be725e3d5ccfcb10f23eb1cae3b72767d0b99784a3d4d53dacabb74
232 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with one heuristic specifically flagging a link to known malicious redirector infrastructure (ttraff.cc). Another heuristic indicates a large number of external PDF links, suggesting a link farm for SEO manipulation or to obscure malicious destinations. The presence of a 'Password-protected archive lure' heuristic suggests the document may be a precursor to delivering a password-protected payload, which is often used to bypass security gateways. The document body itself contains the malicious URL, reinforcing the attack vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9599

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=bengali+song+2019 In PDF document text
    • http://files.tinaw.com.au/uploads/1/3/0/8/130874667/nipatasaxidatuniv.pdfIn PDF document text
    • http://files.joegallant.com/uploads/1/3/1/0/131070560/22fe696.pdfIn PDF document text
    • http://files.colorfulstrokesca.com/uploads/1/3/1/4/131454216/revobuve_jiwuratazerijig.pdfIn PDF document text
    • http://files.shop-with-bam.com/uploads/1/3/1/0/131070161/9554797.pdfIn PDF document text
    • http://files.courtneymakesvideo.com/uploads/1/3/2/6/132695571/1856173.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/1/0433/9436/7644/files/28254171449.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6493/3014/files/30140838926.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5562/1031/files/40107130315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8861/8396/files/blue_mountain_state_theme_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8275/1893/files/zuwobobikiradurubu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0418/2173/files/zupawudekexetupefus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2772/6489/files/89765001880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7327/4018/files/39158680294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7895/9775/files/tikosatopibubafirakaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8125/2508/files/38395979101.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5427/7532/files/22105238705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/0986/3843/files/acoustics_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1497/8718/files/68586047765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6227/1898/files/botevirozixulapige.pdfIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001ce3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1CE3A 5288 bytes
SHA-256: 046263fecd6230009d8970db2d1d42f19d5f338dd1eb53d4bedfd5e63862b849
font_01_sfnt_off0001e04e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E04E 14132 bytes
SHA-256: e7c4458160ef4a20da07d1f141c0a1c8901ea3ec9cfa5d60f6a4c6bd58dac511

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