Malicious PDF — malware analysis report

Static analysis result for SHA-256 740e210414476aad…

MALICIOUS

PDF

41.5 KB Created: 2020-08-02 17:26:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5d64694384dc9e5379aa5080dca25778 SHA-1: 21c989b7b00fa18a48101713d473f978bb12877c SHA-256: 740e210414476aadbbcc0e3d646e5bca240f6eee0f16d73a0cba2a8fc7330366
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains a URL that is also present in the embedded links, suggesting a phishing or malware distribution lure. The ML classifier also strongly indicated maliciousness.

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=da+form+1380+pdf In PDF document text
    • http://files.stjamesdevizes.org/uploads/1/3/1/6/131637316/bamokupawinow-pidevosata-ramuzepizesiz.pdfIn PDF document text
    • http://files.konstantinvalchev.com/uploads/1/3/1/3/131384145/pejomaxodaxejin.pdfIn PDF document text
    • http://files.andyknappmusic.com/uploads/1/3/0/9/130969954/basuk_fidajuxe_najabalidigexe.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/1/0429/0691/0887/files/96523843013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7742/7609/files/14514867915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4539/6386/files/630393575.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8579/0365/files/gazajifonotozig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7368/3100/files/14268592719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3019/2039/files/vamenaximuwoxowotubapev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3934/1216/files/kms_client_emulator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9085/4566/files/18436922937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8851/9080/files/514908197.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/1826/0377/files/e5_92_b8_e9_b1_bc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3422/9398/files/15600705383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4244/6231/files/78928113856.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1799/3366/files/77289675784.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_off000063d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63D3 5528 bytes
SHA-256: d3d22ea42197b1affe3bb770735f17de1f3ea37ebfeb24183afed911261274f8
font_01_sfnt_off00007699.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7699 10184 bytes
SHA-256: 384ece0bfd7ea135099bcabe5f00ba00fa610d1ca67db4ee9a42b1fd735bc3c6

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