Malicious PDF — malware analysis report

Static analysis result for SHA-256 01139c020ead0ba1…

MALICIOUS

PDF

119.2 KB Created: 2020-08-18 17:09:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 30b32e6496fb15df21325465c3a414a8 SHA-1: fd150ca6ee5f5b90a81e0e41382b296e0a34cd13 SHA-256: 01139c020ead0ba1b7e190b7c2016f2ef0d4fd72e6a5ac70df4888f2f87515c9
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains multiple heuristics indicating malicious intent, including links to known malicious redirectors and a large number of external PDF links, suggesting a link farm or phishing attempt. The ML classifier also strongly flagged this PDF as malicious. The embedded URL points to a redirector that likely serves further malicious content or phishing pages.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=unchained+monk+archetypes+guide In PDF document text
    • http://files.mikevincentphotography.net/uploads/1/3/1/3/131383541/baruxubu_kevogun_zujamozesaxapi_vigevoluzoju.pdfIn PDF document text
    • http://files.ctkfriendsofmusic.com/uploads/1/3/0/8/130814205/840616.pdfIn PDF document text
    • http://fokuteg.arupakaai.com/uploads/1/3/2/7/132740892/cda7de05bf25426.pdfIn PDF document text
    • http://files.keckmanagementroofing.com/uploads/1/3/0/9/130969220/4290785.pdfIn PDF document text
    • http://files.tlopezmarrero.com/uploads/1/3/2/6/132696598/8093018.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/1/0434/8788/7510/files/49728773207.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4100/4439/files/facebook_new_emoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8165/4679/files/carbetocina_farmacologia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5830/6965/files/bawukurakixifubigim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1120/1435/files/antrenmanla_geometri_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3365/6476/files/guitar_arpeggios_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8298/0259/files/pegawezuji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8592/9375/files/tier_list_7._14.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/kebivaxubarunajekevakov.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00018c49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18C49 5496 bytes
SHA-256: 899862e8e19338467a22f7a02b9efba023b42fa9c85fb49e5666e831b4992736
font_01_sfnt_off00019ec4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19EC4 10136 bytes
SHA-256: dd10e81b2034ddc46f0be0ae61f3cf629105d423ec188696794283ee07cf9b85
font_02_sfnt_off0001c179.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C179 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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