Malicious PDF — malware analysis report

Static analysis result for SHA-256 a163637a4b88ce73…

MALICIOUS

PDF

39.7 KB Created: 2020-09-13 17:56:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 538b6c45b378ec72ac0f42953eb361fe SHA-1: 7e84c774b26ba53534690a66833577c9348a903c SHA-256: a163637a4b88ce7323283cbf060ebc9ef82c268334631d7b189afd8f02ac8789
184 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including a critical redirector link to 'https://ttraff.me/wix?keyword=boson+x+apk+%25D1%2581%25D0%25BA%25D0%25B0%25D1%2587%25D0%25B0%25D1%2582%25D1%258C+%25D0%25B1%25D0%25B5%25D1%2581%25D0%25BF%25D0%25BB%25D0%25B0%25D1%2582%25D0%25BD%25D0%25BE'. This indicates a phishing or social engineering attempt to redirect the user to malicious content. The document body itself is heavily obfuscated but contains references to the malicious URLs.

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.me/wix?keyword=boson+x+apk+%25D1%2581%25D0%25BA%25D0%25B0%25D1%2587%25D0%25B0%25D1%2582%25D1%258C+%25D0%25B1%25D0%25B5%25D1%2581%25D0%25BF%25D0%25BB%25D0%25B0%25D1%2582%25D0%25BD%25D0%25BE In PDF document text
    • http://xavodape.kristineraymond.com/uploads/1/3/2/7/132740805/2508263.pdfIn PDF document text
    • http://files.gypsyjacksfashions.net/uploads/1/3/0/7/130775191/99317bb0b7424ad.pdfIn PDF document text
    • http://files.penniesandpounds.com/uploads/1/3/1/0/131070933/robogixuguripo_tusugabobuz.pdfIn PDF document text
    • http://nikas.crystalroseco.com/uploads/1/3/1/6/131608016/gojeza.pdfIn PDF document text
    • http://files.dazzlinggoddess.com/uploads/1/3/1/0/131070351/4622500.pdfIn PDF document text
    • http://mojabuz.landscapegardenerscamberley.co.uk/uploads/1/3/1/4/131483245/lebajojom.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/0af078_b3df3124f5e74c9589fa93c390d2a05a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/3e9e83_c1ac87bcdaad4ac8accdb8329a143d5c.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/cafc24_f128949eb73940cbb8b78f25ee878029.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5335/7985/files/69899305173.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/lexisnexis_auto_report_dispute.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8948/4190/files/caloric_ultra_ray_wall_oven.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9755/5098/files/35731570347.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7351/9272/files/89057781872.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 8

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_off00004f76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F76 6096 bytes
SHA-256: 7365046ceb03e9897f53cbe52811b5dee143ebd34228756aec05fbc5a5f8cada
font_01_sfnt_off0000632f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x632F 14432 bytes
SHA-256: 9ea34499dffa1babe59fd12b10a7df99fe00813ec67883efc5b5817672e4111f

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