Malicious PDF — malware analysis report

Static analysis result for SHA-256 5328d42c9983976a…

MALICIOUS

PDF

44.1 KB Created: 2020-08-19 16:25:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a420c6d6ca1bbc4045b10fa8c38cd01b SHA-1: a62417fabda7eb3d26970c1cfc81c6d9432a911e SHA-256: 5328d42c9983976aa9d851adf897bb6209030fe43aee78e61e39a42d202196cb
150 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=elder+scrolls+blades+town+guide', suggesting a lure related to the game 'Elder Scrolls Blades'. The presence of a link farm further indicates an attempt to distribute malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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=elder+scrolls+blades+town+guide
    • http://vubif.risingstartoyfoxterriers.com/uploads/1/3/1/8/131857920/tudarewo.pdf
    • http://files.heavenbphotos.com/uploads/1/3/2/6/132681880/sanumobax.pdf
    • https://cdn.shopify.co
    • https://cdn.shopify.com/s/files/1/0439/0486/0328/files/suzovaxe.pdf
    • https://cdn.shopify.com/s/files/1/0428/2544/9628/files/30310894566.pdf
    • https://cdn.shopify.com/s/files/1/0428/7882/8700/files/one_piece_bounty_rush_obb_file.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/romiket.pdf
    • https://cdn.shopify.com/s/files/1/0427/6781/0726/files/kosutorebi.pdf
    • https://cdn.shopify.com/s/files/1/0430/1655/2605/files/gatozukow.pdf
    • https://cdn.shopify.com/s/files/1/0440/2610/1910/files/roporojowox.pdf
    • https://cdn.shopify.com/s/files/1/0434/1606/0061/files/72993935758.pdf
    • https://cdn.shopify.com/s/files/1/0435/9729/9869/files/report_illegally_parked_car_brighton.pdf
    • https://cdn.shopify.com/s/files/1/0427/8992/9116/files/22528751862.pdf
    • https://cdn.shopify.com/s/files/1/0432/3655/6962/files/guluzodu.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_off00006157.bin
061d78d4705b3269ead9f6408e56c4f84bc24ae7e9c04a685de9ffaaad5c3bf6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6157 5180 bytes
font_01_sfnt_off00007305.bin
dee736fa54d10331079a07936e5c2c6e94300abafecead2a7d5089bbefbae211		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7305 10032 bytes
font_02_sfnt_off00009558.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9558 4324 bytes

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