Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f7a99783136fbcd…

MALICIOUS

PDF

46.9 KB Created: 2020-08-25 00:44:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a21a9a639b11e22e754e4cb17dae30ab SHA-1: 1f3e88b58c2beda0fc6ad6ca01bbcc909416c876 SHA-256: 7f7a99783136fbcd76c6f1be956f8e533230f168b3b197856ffd4292d3068a2e
234 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, disguised with a lure related to transferring contacts. This redirector likely leads to a phishing page or malware download. The presence of numerous other PDF links, some pointing to benign content and others to unknown sources, suggests a link farm or SEO manipulation tactic to distribute the malicious link. The document body itself is heavily obfuscated but contains the malicious URL.

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=transferir+contactos+icloud+para+android In PDF document text
    • http://files.ctdaus.com/uploads/1/3/0/7/130776407/bededi.pdfIn PDF document text
    • http://wevino.animachristiretreats.org/uploads/1/3/0/7/130776008/4424f.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/1/0432/2754/5763/files/200411066.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5540/6494/files/35359713925.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2789/6219/files/linux_assembly_language_programming_bob_neveln.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8986/0510/files/e7_a7_a6_e6_9c_9d.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1581/2766/files/waltzing_matilda_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1001/3853/files/korurokovaputegakibuxol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5785/4102/files/mujiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1602/8309/files/tigexafefapasitejugesixo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4429/1228/files/83365532429.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7235/6514/files/32499780779.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3798/1852/files/tusimavotorubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4352/0665/files/como_atualizar_versao_android_tv_box.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006920.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6920 4980 bytes
SHA-256: 6d0fb67991b21ee8cf0a4ef8c00f6871880cab6b0e928d04f9342438f44fa776
font_01_sfnt_off00007a0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A0C 11284 bytes
SHA-256: 090e548b2fc4bd25cdb53e738cb5ec7823a55b9901235f0788172cbdd4c09923
font_02_sfnt_off00009ef6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9EF6 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

Open this report in the interactive analyzer, or submit your own file for analysis.