Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e9b3b1b555202ef…

MALICIOUS

PDF

57.9 KB Created: 2020-08-11 22:24:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5fa95031c58d9fabeaad7cce52bec716 SHA-1: 75a819cf717e17925edd13ea553926746b6ff338 SHA-256: 0e9b3b1b555202ef4bc2177885ebdcffe8a5dc64e5417e4b4706e391a23c46b0
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) which is flagged as malicious. The document body and heuristics suggest a lure for free downloads, likely leading to a phishing or malware distribution site. No scripts were extracted, but the embedded links are the primary indicators of malicious intent.

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=joint+probability+distribution+function+pdf In PDF document text
    • http://files.eygbball.com/uploads/1/3/0/7/130738859/e4297afe7f04a0.pdfIn PDF document text
    • http://files.wessworldwide.com/uploads/1/3/2/8/132815753/vixexunobumige-vufukatetumax-fabunadu.pdfIn PDF document text
    • http://files.annieleezimerle.com/uploads/1/3/1/6/131637224/6593942.pdfIn PDF document text
    • http://files.nplservicesinc.com/uploads/1/3/2/7/132710748/2581563.pdfIn PDF document text
    • http://xamasama.donnahebertdesign.com/uploads/1/3/1/0/131070571/c673ec19.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/1/0432/4455/2354/files/tagisuronarivujinifunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7757/3539/files/sonepulusofosuvutazoxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6174/7620/files/bogizefiraxoluxatoxoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mutiga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2338/2166/files/xapedojiwupogabemasivewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7954/1671/files/93233520737.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6743/1329/files/jimafurolowozat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6421/4182/files/college_physics_openstax_solutions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1671/6437/files/wurafuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5456/3477/files/pikutusit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0378/8960/files/nodopogojapes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6938/2557/files/litobo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7679/4008/files/bhagavad_gita_slokas_with_meaning_in_telugu.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
🗂 Part of campaign: eygbball.com 4 samples

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000083c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83C4 5380 bytes
SHA-256: fe146bbc290866682afc5342c8bcf90e338c1a3732f07dba13e6316de9a7b890
font_01_sfnt_off00009615.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9615 14500 bytes
SHA-256: 0d3be937b75e91a457beb45bebe0e1dada7fb77576c8f1968ae8437dd1e598ce
font_02_sfnt_off0000c3fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3FC 16268 bytes
SHA-256: 90175e06d18cc84f4eb8a62517578c3b486065994ca9aaa107a1f48398bdc3bb