Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbdf65d9b74fe401…

MALICIOUS

PDF

50.4 KB Created: 2020-07-27 20:18:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3beb6dc250cc0a5151db341879267994 SHA-1: 8148e1b04875789f4cc6e4439212735629392f04 SHA-256: dbdf65d9b74fe401ba9164ff9dd2ecc61da9a78c2a67a3e958c3bcbd025663f9
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a link farm, with numerous external PDF links, many hosted on Shopify. The document body, though heavily obfuscated, suggests a lure related to 'Gay chat app for android', potentially a social engineering tactic. The presence of a payment redirection lure heuristic further supports the conclusion that this PDF is designed to trick users into clicking malicious links.

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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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=gay+chat+app++for+android In PDF document text
    • http://files.eatnoodlehub.com/uploads/1/3/0/7/130740013/melowep.pdfIn PDF document text
    • http://files.asdontheroad2019.org/uploads/1/3/2/7/132712661/lejozugezite.pdfIn PDF document text
    • http://files.rajpurohit-lab.org/uploads/1/3/1/4/131453268/dirubude_jagifoles_lagunedetido_wubog.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/1/0434/5525/0598/files/nimaziwudivupekubagolijem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7149/4554/files/topuwowinutigozuxedo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9559/4910/files/89540066930.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3441/8075/files/jadifagaxufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5476/8021/files/bofajefemisizotase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3542/6970/files/8386899840.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8032/7076/files/33880749191.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0288/8351/files/94935308959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xizujebekox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/mebepewugubopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1219/4463/files/gezidobodegekobonupake.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007e25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E25 4836 bytes
SHA-256: 138b0cdb0441fd63de4ea56a5f7bac2c1f049582d9d5850bee96aed8b7532c66
font_01_sfnt_off00008e87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E87 1800 bytes
SHA-256: 51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0
font_02_sfnt_off00009715.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9715 10764 bytes
SHA-256: 01afd6f4840ab4f685e5c4f4546e2f3aadb2998a50f3a2f2cf60b8065ad7b77a