Malicious PDF — malware analysis report

Static analysis result for SHA-256 99b848bcd2a91f7c…

MALICIOUS

PDF

43.2 KB Created: 2020-08-15 08:38:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 542ca1533ad3b404a46adb9b467f1df4 SHA-1: 66b5ec2a909c9527e96f19b1458fed9863b58708 SHA-256: 99b848bcd2a91f7c028f70cc351a6da62a0164e6c1e042b5342d1a9642f262a4
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to `ttraff.com`. The document body, though heavily obfuscated, contains a URL that appears to be the same as the malicious redirector. This suggests the document's primary purpose is to trick the user into clicking the link, likely leading to a phishing or malware download site.

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=easy+spreadsheet+for+personal+budget In PDF document text
    • http://files.whitepeacockcoffee.com/uploads/1/3/1/4/131436971/7dad80.pdfIn PDF document text
    • http://files.neonopen.org/uploads/1/3/0/7/130738755/konuderabano.pdfIn PDF document text
    • http://files.lyzasahertian.com/uploads/1/3/1/4/131452799/risegesepedutugorowe.pdfIn PDF document text
    • http://files.beefalonorthwest.com/uploads/1/3/1/8/131871433/tukijunutus.pdfIn PDF document text
    • http://pefuban.freehillblades.com/uploads/1/3/0/8/130814124/1413973.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/1/0433/8892/8150/files/12871807479.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6674/4216/files/64661098813.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9356/6364/files/mo_creatures_manticore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1672/4386/files/wulut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6742/4416/files/tivenusakikowerupirojipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5654/5433/files/8143359157.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8158/1209/files/98185001800.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7989/1099/files/puribes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7154/6279/files/pademokabolutulabonik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8086/6197/files/47442010444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3861/2378/files/54973762476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7090/5756/files/principles_of_how_to_win_friends.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A7B 5500 bytes
SHA-256: 732c146a26800f83120d886669275526041d9b63165f2775f10323419986bea7
font_01_sfnt_off00007d2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D2E 9980 bytes
SHA-256: 1e0462097146fa07b3b55da7e2f8e6ee51b2fa00d986630d857f0db94e5b1682

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