Malicious PDF — malware analysis report

Static analysis result for SHA-256 df69b9fe3a21f4ca…

MALICIOUS

PDF

75.8 KB Created: 2020-08-19 14:52:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 63343108ca46d8631fb17c9a18b527fc SHA-1: 1cd93d1575740ec5d0970e732628534ea0d373cf SHA-256: df69b9fe3a21f4ca9082144a1df2005764ecb56e3343349d800a3f8ac2a94baa
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=angola+visa+application+form+cape+town'. Additionally, it exhibits characteristics of a fake invoice or payment lure, suggesting a social engineering pretext. The document body, though heavily obfuscated, contains the same URL, reinforcing the lure. The presence of a link farm further indicates malicious intent to drive traffic to potentially harmful sites.

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=angola+visa+application+form+cape+town In PDF document text
    • http://files.dancingwiththelocalstars.com/uploads/1/3/1/3/131383318/rinunegitolizus-getobepus.pdfIn PDF document text
    • http://ribes.berkshirephotographydesign.com/uploads/1/3/1/4/131437254/loxotafebolun-kujanojegowaso-letapok-xawab.pdfIn PDF document text
    • http://mibaxev.simpsonlawn.com/uploads/1/3/1/0/131070374/7d392d15defb36b.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/1/0433/5131/0488/files/the_birth_of_african_american_culture.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9014/0581/files/26979949038.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2159/6834/files/sql_server_2019_developer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8519/3621/files/4651984746.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1044/8795/files/giovanni_s_room_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7865/4883/files/a_cabeza_de_medusa_marilar_aleixandre.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2267/8173/files/40069927194.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5247/3252/files/75706191601.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2821/6983/files/keposa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8260/3927/files/49597463334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0709/0581/files/2713418915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6512/0670/files/77197068025.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0813/0197/files/bullous_keratopathy.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d22b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD22B 5264 bytes
SHA-256: 608c0d24beb4588d9557f3fafae0301cbb9980c042f4e622970538ddd461b21b
font_01_sfnt_off0000e406.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE406 15368 bytes
SHA-256: 4c128ae4e819b6381b6a5298bd6d61e6fe58fa0dc25fcc46cd213f71b0a059b3
font_02_sfnt_off0001138b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1138B 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361