Malicious PDF — malware analysis report

Static analysis result for SHA-256 41ee2876a97786af…

MALICIOUS

PDF

43.2 KB Created: 2020-08-11 16:49:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aed7d0181eb8b95d32332e6915c5ca28 SHA-1: d93fa755a23133d82860329153bbabe21a39c94c SHA-256: 41ee2876a97786af9f1f206fb6e28f07d27913b9093c5839aec2c74ff0adfef5
150 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a primary link to a known malicious redirector at `https://ttraff.com/pify?keyword=software+analysis+tools+pdf`. This suggests the document's purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing. The ML classifier strongly supports the malicious verdict.

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=software+analysis+tools+pdf
    • http://files.globalcallministries.org/uploads/1/3/2/6/132681513/0d1321f9.pdf
    • http://fipuxez.littlesprouts.org.uk/uploads/1/3/0/8/130813420/2fef2.pdf
    • http://files.kimberlystories.org/uploads/1/3/1/4/131409677/pasenaj.pdf
    • http://files.paulguilletphotography.com/uploads/1/3/1/3/131383651/d77cad5ccc96500.pdf
    • https://cdn.shopify.com/s/files/1/0439/4031/5294/files/90789457016.pdf
    • https://cdn.shopify.com/s/files/1/0438/0501/6225/files/70368085213.pdf
    • https://cdn.shopify.com/s/files/1/0436/3023/1712/files/rosafutazun.pdf
    • https://cdn.shopify.com/s/files/1/0433/9888/9635/files/akutagawa_short_stories.pdf
    • https://cdn.shopify.com/s/files/1/0431/4746/0768/files/pifezalofenidusasepadi.pdf
    • https://cdn.shopify.com/s/files/1/0427/7692/0220/files/mtg_arena_crashing_on_startup.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12457093378.pdf
    • https://cdn.shopify.com/s/files/1/0438/2933/0082/files/lalozilajokusoropivelu.pdf
    • https://cdn.shopify.com/s/files/1/0439/2232/5672/files/aac_bricks_manufacturing_process.pdf
    • https://cdn.shopify.com/s/files/1/0432/0080/7070/files/feroroloxuxipanawewoboz.pdf
    • https://cdn.shopify.com/s/files/1/0428/1230/9671/files/52404952465.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_off00006a0e.bin
345a9ff3b9c14321caef83d591a0e004cd0d3c94b6bd0e652d2e02fd700e0a79		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A0E 5332 bytes
font_01_sfnt_off00007c49.bin
e79c2ad083c9d6343bdf054d4567c879d9826242c2c955285824f2b6d13c431c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C49 10548 bytes

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