Malicious PDF — malware analysis report

Static analysis result for SHA-256 97714f5621462f4e…

MALICIOUS

PDF

76.1 KB Created: 2020-08-08 19:37:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cd62934b3f66475ab9fa0ab7398613db SHA-1: 5b809b3faffba2e2593d58d1d230bc55ade21cf7 SHA-256: 97714f5621462f4e73ebe9a7f6533479c569710d95731b946e44fafeace7cfa0
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Addends

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link to 'ttraff.ru' is identified as a malicious redirector. This suggests the document is designed to lure users into clicking on malicious links, likely for phishing or malware distribution. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.ru/pify?keyword=chain+rule+examples+pdf
    • http://files.studiobeeproductions.com/uploads/1/3/2/6/132681698/e1722.pdf
    • http://files.jrpaddon.com/uploads/1/3/1/3/131398472/beae019bab08ff.pdf
    • http://jimedor.adventurepoetry.co.uk/uploads/1/3/0/7/130739919/440302.pdf
    • https://cdn.shopify.com/s/files/1/0429/8833/9354/files/dejejipugirokejifividura.pdf
    • https://cdn.shopify.com/s/files/1/0433/0605/7888/files/pebovuwukefej.pdf
    • https://cdn.shopify.com/s/files/1/0434/7294/5312/files/17165370472.pdf
    • https://cdn.shopify.com/s/files/1/0429/8833/9354/files/xakadoluge.pdf
    • https://cdn.shopify.com/s/files/1/0435/4228/2394/files/53908446356.pdf
    • https://cdn.shopify.com/s/files/1/0452/6401/1421/files/possessive_nouns_worksheet_grade_2.pdf
    • https://cdn.shopify.com/s/files/1/0433/1415/1589/files/63775582475.pdf
    • https://cdn.shopify.com/s/files/1/0438/4948/2400/files/zazumotiwexigo.pdf
    • https://cdn.shopify.com/s/files/1/0433/3928/4645/files/movie_review_of_3_idiots.pdf
    • https://cdn.shopify.com/s/files/1/0430/9798/1089/files/60974081167.pdf
    • https://cdn.shopify.com/s/files/1/0429/1048/2588/files/tifajisobaz.pdf
    • https://cdn.shopify.com/s/files/1/0433/4557/6088/files/fujedotuxilidowivagefale.pdf
    • https://cdn.shopify.com/s/files/1/0430/5921/6533/files/65991920312.pdf
    • https://cdn.shopify.com/s/files/1/0431/1000/6940/files/16620091235.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c9fe.bin
4e1a8627657e4428a7503949cbd6427f64bde695d8dd2d1e165e7f9061e783e5
pdf-font-stream PDF embedded font (sfnt) at offset 0xC9FE 5252 bytes
font_01_sfnt_off0000dbb0.bin
0a4dfc89ca1c4566944e8ac4e62ceb3c65ec4e21c8bdffb7451195d6e055bef3
pdf-font-stream PDF embedded font (sfnt) at offset 0xDBB0 15416 bytes
font_02_sfnt_off00010d52.bin
65f5e4ef1bc4073f6f462ce85001a653015b82a34bd19e049511571b31869e21
pdf-font-stream PDF embedded font (sfnt) at offset 0x10D52 16296 bytes