Malicious PDF — malware analysis report

Static analysis result for SHA-256 220ee733271de646…

MALICIOUS

PDF

40.0 KB Created: 2020-08-23 05:45:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a6ed0fea4033caa6a8ebd6763f653053 SHA-1: 0f23b7f1c0597588da85761a9f0183c89f0688c0 SHA-256: 220ee733271de646e7b169b72dde50b99d0547f2bcd774c9124eb954f1450d4e
234 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains text related to a coloring sheet and the malicious URL. The primary attack pattern involves tricking the user into clicking the malicious link, which then redirects to further malicious infrastructure.

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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.com/pify?keyword=god+loves+a+cheerful+giver+coloring+sheet In PDF document text
    • http://zulin.tacomansd.com/uploads/1/3/0/7/130739916/jamamutu_datukutadi.pdfIn PDF document text
    • http://files.greenlightliteraryrescueservice.com/uploads/1/3/2/8/132814343/paxatoxugov-nemola-guvubamuvufex.pdfIn PDF document text
    • http://files.carlylelabuschagne.com/uploads/1/3/1/6/131606392/1247799.pdfIn PDF document text
    • http://files.canadagripsport.com/uploads/1/3/0/7/130775268/dobalebow.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/1/0428/6958/8135/files/jafakorikakimif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5608/7708/files/74240037676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3191/9765/files/36262391355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1826/4469/files/simenizupezisenujaxuvuka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2694/0067/files/skyscale_lost_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/3189/1861/files/hung_s_difficult_and_failed_airway_management.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2475/0491/files/54789328677.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32296476761.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2433/3472/files/super_mario_world_rom_gba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/1973/4938/files/mm_dd_yyyy.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 6

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_off00005e92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E92 5376 bytes
SHA-256: 443e7b2a48da2f7db03682265c80c00c7647ff35afc2e69a9c76a34c646cc4b9
font_01_sfnt_off000070e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70E0 10064 bytes
SHA-256: ca9474249e4ffe29c2b05afce053f6ff8bc265ed6e1dd601c2422042ca27fe70

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