Malicious PDF — malware analysis report

Static analysis result for SHA-256 b88d137df032eafe…

MALICIOUS

PDF

64.6 KB Created: 2020-08-23 08:59:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fbf03042fdf776deb9f45aa8d5144607 SHA-1: 33f469d975698276b011403568a4c6654107c6ac SHA-256: b88d137df032eafee9847171a37a9847fa52751cd94738a7f734e0a97daeb426
202 Risk Score

Malware Insights

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

The PDF file contains multiple heuristics indicating malicious intent, including a critical finding of a redirector link to 'ttraff.com' and a PDF link farm. The document body, though partially garbled, contains text related to 'get your guide berlin phone number' and the malicious URL, suggesting a lure. The presence of numerous embedded links, many pointing to Shopify domains, further supports the link farm heuristic. The primary malicious IOC is the redirector URL, which likely serves as the initial stage for delivering a payload.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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.com/pify?keyword=get+your+guide+berlin+phone+number In PDF document text
    • http://xilobuder.millseatonpublic.com.au/uploads/1/3/2/6/132695306/kekewuwaven.pdfIn PDF document text
    • http://vusazoru.motonorm.com/uploads/1/3/0/8/130874493/kawin-taken-gepas.pdfIn PDF document text
    • http://files.moniquenicolecaston.com/uploads/1/3/0/9/130969522/fagakiko_purowuwojasitel_torizeve_juwufijide.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/1/0428/5035/3318/files/8390358637.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1746/0120/files/71947155973.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7087/2986/files/44683833351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9139/3698/files/lonot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9614/6073/files/penudo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4695/9261/files/investment_banker_resume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8658/3710/files/breaking_into_wall_street_investment_banking_interview_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/6284/1759/files/basic_computer_training_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0582/1599/files/56436766215.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0659/1127/files/ruvobugelaregarevofazu.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_off0000bfe9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFE9 5256 bytes
SHA-256: 33b15d227d9fa1b1d4a2792aab65a712700ee99da48d772a8f1c2c74170cee44
font_01_sfnt_off0000d1a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1A5 10484 bytes
SHA-256: 77d66a151fbfff2ccb5a6be1d1fd596343673b9fc93f60515ffa4bb00b4309c6

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