Malicious PDF — malware analysis report

Static analysis result for SHA-256 c925f7b0e3e1a59b…

MALICIOUS

PDF

39.1 KB Created: 2020-08-14 17:56:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8e1519258555dc66b0d31536f56bc2fc SHA-1: edb6ac501b794bc1ab08f1e3f529e057c8c0ea13 SHA-256: c925f7b0e3e1a59b58eb79462bcbd5c0dbaaa7ee4f66d60005afc4e7488f3048
210 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to serve malware or facilitate phishing. The document also includes a "download button" lure and explicitly instructs the user to disable security software, indicating a malicious intent to bypass defenses. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm for SEO poisoning or distributing malicious content. No scripts were extracted, but the heuristics strongly indicate a social engineering attack aimed at tricking the user into downloading further malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Security software disable instruction high SE_SECURITY_BYPASS
    Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=free++bandicam+bagas31 In PDF document text
    • http://wozosesu.activeinitiatives.com/uploads/1/3/0/9/130968917/pabekapadibuge-noxajaxumet-xigifeji.pdfIn PDF document text
    • http://files.shannabutler.com/uploads/1/3/1/3/131398010/ca744944c8e3c.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/1/0429/2355/7030/files/22149877354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5005/0460/files/figigoxudefisuvixuxolade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5128/4642/files/biases_in_research.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7623/1072/files/canadian_visa_trinidad_forms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9663/7597/files/manual_autocad_2020_espaol_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6540/8662/files/90601587670.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/no_man_s_sky_gamma_root.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8448/9631/files/76546361255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1524/8794/files/arrays_in_c_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8258/7039/files/fawikinojiva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7265/1413/files/fafovomanivonopa.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_off00005a00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A00 5540 bytes
SHA-256: af32671383c8a332794489eaf965eee50b3f2edce060a1f63ab51ffbdbb528b1
font_01_sfnt_off00006cbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CBD 10376 bytes
SHA-256: 4f27ca5241c24c669f325406d40588fe867cfef826c12c5959e0bb97262bb9bf

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