Malicious PDF — malware analysis report

Static analysis result for SHA-256 3413a46413822d05…

MALICIOUS

PDF

41.0 KB Created: 2020-08-12 13:05:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f63dbcee9e72eb89acb0dac56530bbad SHA-1: f52c12ebca5ec7b9a0202256a1adad2da660db41 SHA-256: 3413a46413822d05663e6a9124e57710d43ceef6d88e4af981545163b15fc500
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector pointing to 'https://ttraff.cc/pify?keyword=cysteamine+melasma+pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to lure the user to a malicious site. The presence of a 'Password-protected archive handoff' heuristic indicates a common tactic to bypass gateway security by encrypting a payload, which is then intended to be decrypted by the user, likely after being directed to the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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
  • 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=cysteamine+melasma+pdf In PDF document text
    • http://files.michaelquesnel.com/uploads/1/3/1/1/131164573/zatiroranik.pdfIn PDF document text
    • http://mokovod.lifebydesignpa.com/uploads/1/3/0/7/130776791/e528daf3cb1.pdfIn PDF document text
    • http://mupafen.tearneylab.org/uploads/1/3/1/6/131606289/zowuvuvomu.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/1/0433/0687/7080/files/96056065099.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4324/9563/files/maharashtra_housing_society_bye_laws_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/4897/1938/files/bgp_cisco_press.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2684/8661/files/anthony_bourdain_typhoid_mary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6822/6725/files/bemuroxaxumovavewat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9537/4489/files/wanderungen_appenzell.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3831/9527/files/44578223954.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7029/9038/files/dapetemedumuwupifawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9984/6824/files/david_gray_sail_away.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5440/7580/files/redok.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
🗂 Part of campaign: thetinyjungle.com 3 samples

Related samples 2

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_off000062c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62C3 5096 bytes
SHA-256: ef6483657842cf640acc8b46210e35d4269f543dedd74e1a222767f3eff5d935
font_01_sfnt_off0000740f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x740F 10524 bytes
SHA-256: 964efd334025c73ab6d3aeac31f373075da55aa2b0d738d1852ef4d33fae1f9f

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