Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c1ba94adcca02e2…

MALICIOUS

PDF

39.8 KB Created: 2020-08-03 03:10:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6d13040100f9b022459649618992058f SHA-1: 2d5cd2d3f8e36f15a45820222eb352a41f724f17 SHA-256: 7c1ba94adcca02e25961e7cfbcaa85782991de2032536de790fcf0496934c468
194 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains a URL that is also present in the heuristic findings, indicating a likely phishing or scam attempt. The ML classifier strongly supports the malicious nature of this PDF.

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=list+of+punctuation+marks In PDF document text
    • http://files.stoprethinkspeak.org/uploads/1/3/0/8/130873921/wulaziwed_katitakivin_midesamopusol.pdfIn PDF document text
    • http://files.glencoeflorist.co.uk/uploads/1/3/1/4/131483128/jizomupopiwo_tujovaw.pdfIn PDF document text
    • http://files.mmac.org/uploads/1/3/1/8/131856907/tifajesusi_nemal_surolinaxarefef.pdfIn PDF document text
    • http://files.marshallglassgc.com/uploads/1/3/2/6/132681779/5567940.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/1/0446/6756/8291/files/stiff_leg_dumbbell_deadlift.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2476/9436/files/juxulabikobekirorimisijuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8444/5864/files/banowimegaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7992/4902/files/kodatiwuruk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3308/4575/files/29595410368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3056/1436/files/26233199306.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4334/0956/files/gabuwej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4763/3575/files/dekogobapapegisepoja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3689/1544/files/sosonukafaroteb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2938/1791/files/davosefelibawu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1400/3610/files/20555958362.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6200/9755/files/50421861758.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0096/1947/files/23091167038.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_off00005e23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E23 5136 bytes
SHA-256: ce2c9c592039554459b5ddc0e8e1d29ab735bb8b44e3b1bc8650086af65b3970
font_01_sfnt_off00006f8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F8E 10120 bytes
SHA-256: c08f9a5633220fa3be0f19b1f37f58c1b07a5c8848d04f3f961a4eccb0152ef8

Open this report in the interactive analyzer, or submit your own file for analysis.