Malicious PDF — malware analysis report

Static analysis result for SHA-256 0181b17342cf3636…

MALICIOUS

PDF

39.3 KB Created: 2020-07-30 23:49:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ff96bd0ff6329b04ef0b46ddba6ce35e SHA-1: 82ae9b8a3783686864c2bbb65a2811becff89d00 SHA-256: 0181b17342cf3636bd55b0392aefb45ce6443c663e0b3f97b073b9a54ead36e3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous links designed to appear as legitimate document downloads, but they redirect to malicious infrastructure. Specifically, the link https://ttraff.ru/pify?keyword=egypt+concession+map+2020+pdf is identified as a malicious redirector. The sample also exhibits characteristics of an SEO link farm, suggesting an attempt to distribute malicious content through search engine optimization tactics. The ML classifier strongly indicates maliciousness.

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.ru/pify?keyword=egypt+concession+map+2020+pdf In PDF document text
    • http://files.staceymason.com/uploads/1/3/1/1/131164382/3401790.pdfIn PDF document text
    • http://files.robinsonelmwood.com/uploads/1/3/1/6/131636828/livaxabo.pdfIn PDF document text
    • http://files.fromrustcg.com/uploads/1/3/1/8/131856331/worojegedipuba.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/1/0432/7286/3904/files/vibipibota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8090/8951/files/gazopinoxebigowowimudijud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8470/7992/files/35032581897.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1928/0288/files/28731682361.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27622062760.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tivaluzisezulumavolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9693/2501/files/bukavivaki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5832/3865/files/78932499058.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1436/4059/files/kekubifovajemoxumiza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7232/3737/files/7348257597.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4218/6150/files/92647520812.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5529/9237/files/vokifase.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 4

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_off00005938.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5938 5468 bytes
SHA-256: de8076348ecf4bce7633aedf6b013dbda1a407d4add432f39b831d72933fdab1
font_01_sfnt_off00006bc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BC8 10668 bytes
SHA-256: 9f69fcebafb1bd3c71ca6985ac33a603e72afbe9bf71e42c90e50f98af6e1da6

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