Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3e0aaac7e61f06d…

MALICIOUS

PDF

48.7 KB Created: 2020-07-25 03:49:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 379cb0178fc9b681e671dc2a53e04143 SHA-1: 709867e21e16bd4e77b2f3c694d651c245e14156 SHA-256: b3e0aaac7e61f06d7d883e8eb9de2e48fa24904faa0ce94a43a543c3663e57c9
152 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.ru. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs hosted on various domains, including shopify.com. The document body, though heavily obfuscated, contains text related to marketing and PDF, suggesting a lure. The primary malicious IOC is the redirector URL, which likely serves as a gateway to further malicious content or phishing pages.

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=administra%25C3%25A7%25C3%25A3o+de+marketing+kotler+keller+pdf
    • http://files.mariaverrier.com/uploads/1/3/2/6/132695543/3042e7f373ddae5.pdf
    • http://files.kansascoringandcutting.com/uploads/1/3/0/8/130814058/gofotujesejawi.pdf
    • http://files.westcroftcommunitycentre.co.uk/uploads/1/3/1/0/131071256/lakog_sudefe_wotuwafamitukit_wifesag.pdf
    • http://files.authenticbathroomrenovators.com/uploads/1/3/2/6/132695586/4108250.pdf
    • http://files.anchorelpaso.com/uploads/1/3/1/4/131408581/vevilukuw-duxabiliwis.pdf
    • http://files.westcroftcommun
    • https://cdn.shopify.com/s/files/1/0432/0133/1360/files/30551054602.pdf
    • https://cdn.shopify.com/s/files/1/0433/3823/6062/files/48110214807.pdf
    • https://cdn.shopify.com/s/files/1/0429/9161/6153/files/29765593897.pdf
    • https://cdn.shopify.com/s/files/1/0431/0374/8263/files/53129255118.pdf
    • https://cdn.shopify.com/s/files/1/0430/7448/6421/files/19400087155.pdf
    • https://cdn.shopify.com/s/files/1/0433/2906/1014/files/gamasu.pdf
    • https://cdn.shopify.com/s/files/1/0427/8370/3206/files/82272796201.pdf
    • https://cdn.shopify.com/s/files/1/0435/9825/0141/files/nurazelomexogewojux.pdf
    • https://cdn.shopify.com/s/files/1/0440/5090/7286/files/kamugefas.pdf
    • https://cdn.shopify.com/s/files/1/0427/6004/4710/files/57755423053.pdf
    • https://cdn.shopify.com/s/files/1/0431/5018/0503/files/61728384040.pdf
    • https://cdn.shopify.com/s/files/1/0432/5241/6672/files/80388638928.pdf
    • https://cdn.shopify.com/s/files/1/0434/7117/5846/files/rejamosefagonirufuteje.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/peregomosurexezobosezob.pdf
    • https://cdn.shopify.com/s/files/1/0427/8022/9791/files/91281209940.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_off00007b7c.bin
229b4b67e324b837fb1616a61bbad05269714ea70065ca0868f37f74920af485		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B7C 5704 bytes
font_01_sfnt_off00008e2c.bin
adaf5c94771799d7cf5d2a774e1ed92ae0385434cf69b74873b262bf6fbdea56		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E2C 12124 bytes

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