Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a35b6c42119cae2…

MALICIOUS

PDF

39.7 KB Created: 2020-08-03 01:16:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2ccf0d2e4c9c372cca601b7df13d2518 SHA-1: 9deb25f5a614c161fcc9fe4ddf66d522c01c72d1 SHA-256: 3a35b6c42119cae2f86df22ae1872da82de2dadcc4428cacc01f86c2edd8e580
194 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The document body contains numerous embedded URLs, including a primary malicious redirector at 'https://ttraff.cc/pify?keyword=powers+of+the+psalms'. This suggests the document's purpose is to lure users to malicious sites. No scripts were extracted, but the extensive link farm points to a delivery mechanism for further compromise.

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.cc/pify?keyword=powers+of+the+psalms In PDF document text
    • http://files.kathleenrhee.com.au/uploads/1/3/1/4/131438397/4552538.pdfIn PDF document text
    • http://files.echeloncatapult.org/uploads/1/3/0/7/130738679/a2b31da6d8.pdfIn PDF document text
    • http://files.wakeforestfarmersmarket.org/uploads/1/3/0/7/130739369/tetujasiledewige.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6833/2959/files/kezabugize.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90209356055.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1059/6765/files/mufigenopuwemeva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7963/9967/files/kobofewob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nejoxalivivurotuzepebibus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8573/9685/files/first_language_acquisition_behaviorist_theory_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8830/5575/files/39935661498.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8867/files/vogunivokotik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5843/8056/files/risejanon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/53567737566.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: echeloncatapult.org 5 samples

Related samples 4

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
font_00_sfnt_off00005111.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5111 4868 bytes
SHA-256: fb65e33ce3b90e81e097bf0a1636d5f509141135b81eb2294fc3cb707f0249c2
font_01_sfnt_off000061a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61A2 10096 bytes
SHA-256: 0cb44f9455129594112c3d1e934546754c9fb0b6ff5d9b33b1b3013d156199fd
font_02_sfnt_off0000842a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x842A 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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