Malicious PDF — malware analysis report

Static analysis result for SHA-256 4facc9d74b0cbd75…

MALICIOUS

PDF

48.0 KB Created: 2020-08-30 02:49:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 35d2864851583107c842c3dd620287cd SHA-1: 87a79379925782d6a6a431763965508f6b939b58 SHA-256: 4facc9d74b0cbd75972453551dff8fb53c357d973a658b8f2e5f9332ef571c2f
152 Risk Score

Malware Insights

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

The PDF was flagged as malicious by an ML classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. It also exhibits characteristics of a PDF link farm, with numerous embedded URLs pointing to external resources, many hosted on Shopify. The primary malicious URL identified is ttraff.cc, which is known for redirecting users to harmful content. The document body itself is heavily obfuscated and contains the malicious URL.

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.cc/wix?keyword=the+egypt+game
    • https://cdn.shopify.com/s/files/1/0438/6032/8608/files/prezi_templates_for_teachers_free.pdf
    • https://cdn.shopify.com/s/files/1/0439/7573/7502/files/muxewuwaper.pdf
    • https://cdn.shopify.com/s/files/1/0432/5661/0969/files/67931654254.pdf
    • https://cdn.shopify.com/s/files/1/0439/0807/1576/files/widukomesugejebagireb.pdf
    • https://cdn.shopify.com/s/files/1/0437/8135/7725/files/anonymous_mask_montage_photo_apk.pdf
    • https://cdn.shopify.com/s/files/1/0439/9782/3134/files/9464551962.pdf
    • https://cdn.shopify.com/s/files/1/0430/7157/0069/files/levosekodoxemitalukij.pdf
    • https://cdn.shopify.com/s/files/1/0435/0853/1365/files/42471538136.pdf
    • https://cdn.shopify.com/s/files/1/0433/7441/1926/files/lovotepowawiwubomow.pdf
    • https://cdn.shopify.com/s/files/1/0434/6331/1513/files/faro_platinum_arm_tech_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0430/3729/4741/files/70346067019.pdf
    • https://cdn.shopify.com/s/files/1/0461/3760/6297/files/17057564822.pdf
    • https://cdn.shopify.com/s/files/1/0435/8130/9085/files/vikings_season_3_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/1129/2827/files/67001196693.pdf
    • https://cdn.shopify.com/s/files/1/0433/5144/1560/files/.pdf
    • https://cdn.shopify.com/s/files/1/0429/2182/0319/files/sodavaxeraxebidew.pdf
    • https://cdn.shopify.com/s/files/1/0433/5573/4167/files/automotive_sensors_and_actuators.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000080b2.bin
a804fb36da0ae71e646af027cacf6943829d9fe0f92240ec799cfee13fe80918		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80B2 4980 bytes
font_01_sfnt_off00009197.bin
7724b7e5d69a6b707043c35891dbd33479e77b586392a1b55168e088442aa917		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9197 9904 bytes

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