Malicious PDF — malware analysis report

Static analysis result for SHA-256 3108ea8083e282f0…

MALICIOUS

PDF

52.3 KB Created: 2020-08-10 02:01:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 522c6bb83f796d3a6fb9a77f3c4ec7d1 SHA-1: 41d7b20b42d01c3aaa61d8c27f1aa66c04774760 SHA-256: 3108ea8083e282f0d223901a822bd9ec5a233c5461f31f93b7d9d333f2fb82d9
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution T1071.001 Web Protocols

This PDF document is designed as a lure, likely for credential phishing, by presenting itself as an application form download. It contains a large number of embedded links, many pointing to redirectors like 'ttraff.cc', which are known to lead to malicious content or phishing sites. The heuristic 'SE_MFA_LURE' further suggests an intent to harvest credentials or session tokens. While no scripts were directly extracted, the PDF structure and embedded links facilitate the attack pattern.

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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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.cc/pify?keyword=saqa+application+form+pdf+download In PDF document text
    • http://files.dimitraxidous.com/uploads/1/3/1/6/131606984/tatefu.pdfIn PDF document text
    • http://nonojib.fjordsar.com/uploads/1/3/0/7/130776485/rakidefuguges-vizilodabizu-bosaboradimoda.pdfIn PDF document text
    • http://files.councillpsychiatric.com/uploads/1/3/0/7/130739140/kaguxa_babar.pdfIn PDF document text
    • http://files.iamscientiste.com/uploads/1/3/1/4/131452815/026a02.pdfIn PDF document text
    • http://files.downtowntorontodoctors.com/uploads/1/3/0/9/130969551/dopivalezoxibuxu.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/1/0436/2692/2146/files/bexix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1859/8053/files/91029743416.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4379/0760/files/dixetaxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6560/6301/files/tobezatom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9816/8727/files/95032899980.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3169/1421/files/despicable_me_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4329/9234/files/75134748475.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8049/8852/files/gowope.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2576/7327/files/lobiribazulamudeguz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6874/4087/files/where_does_league_save_replays.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/97253363073.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0155/1771/files/86983222432.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_off00007f64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F64 5112 bytes
SHA-256: 34dd6e3403df9d19a2dc955da4c17a78ff7cce0e2ab232838687eb8fce211299
font_01_sfnt_off000090a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90A9 11032 bytes
SHA-256: f1ecb949895dbf7c1d8ce9cb119bcfe56341659af565623a84e158a3491ce850
font_02_sfnt_off0000b615.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB615 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176