Malicious PDF — malware analysis report

Static analysis result for SHA-256 7620a6d8fc4bf26f…

MALICIOUS

PDF

50.7 KB Created: 2020-07-31 15:15:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 31ebc8677d78d5e836aa4d2b05ca71e2 SHA-1: b212f79bea2b53a1a4314902cf85ffb22ce5f498 SHA-256: 7620a6d8fc4bf26f6feebf8e719abf5dee56da36c1d80ae8789b29da2ecd1c20
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains multiple embedded links that point to a redirector service (ttraff.com). This service is likely used to obscure the final destination, which is probably a phishing page or a malware download site. The presence of a large number of external PDF links, some of which are SEO-optimized, suggests an attempt to generate traffic and potentially trick users into downloading malicious content disguised as legitimate documents.

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.
  • 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.
  • 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=ninjutsu+techniques+pdf In PDF document text
    • http://files.karmicguidance.com/uploads/1/3/2/3/132303310/serusaj.pdfIn PDF document text
    • http://files.stockbrosresearch.com/uploads/1/3/1/6/131636689/rilusolonitizo_raxojut_jolodidesi.pdfIn PDF document text
    • http://files.usecuniversity.com/uploads/1/3/1/3/131380440/93845.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/1/0430/8205/5842/files/kajologijutekiwumojosu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2218/8701/files/pujagivopozotabusilunowag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kexikebesadunav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7465/0261/files/sedilenasunikemafojegek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54101174921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3598/4029/files/tazixakasones.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7420/7387/files/18987983914.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7379/8306/files/jidopurux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/suxabunosafudovoxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3422/9398/files/wezebif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5344/0414/files/neruz.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 2

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_off00007d24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D24 3920 bytes
SHA-256: b607fcc66868aa1145cda3d9542993fee11714ec088bcb09f2d797772aa532e6
font_01_sfnt_off00008b09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B09 4848 bytes
SHA-256: 57a86cdd7b61c5afa1d20894efa6235651330e0cd9026c8c99cf685fc98080c8
font_02_sfnt_off00009b86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B86 10096 bytes
SHA-256: 363881da42ce604c0c15a2db129d08715f1de9455665fbe868fb836e8260c13f

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