Malicious PDF — malware analysis report

Static analysis result for SHA-256 b61750b55ae58abe…

MALICIOUS

PDF

36.5 KB Created: 2020-08-23 07:07:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6fa60aed2f89f2cb6e7ec598ad365f90 SHA-1: 972d24ae9e8aa7b7943eaac86cde87b91e295b9a SHA-256: b61750b55ae58abefb761464525841f12636b87b1c445e6b08940d8bbeccf8f6
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting PDF files, suggesting a link farm or SEO poisoning tactic. One critical heuristic identified a link to a known malicious redirector infrastructure at https://ttraff.ru/pify. The document body, though heavily obfuscated, contains the same redirector URL and a Shopify URL, reinforcing the malicious intent. No scripts were extracted, but the primary attack vector appears to be the malicious link.

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.ru/pify?keyword=parallelism+exercises+with+answers+multiple+choice
    • http://files.cabincreekanimalhospital.com/uploads/1/3/1/3/131383247/zofotodapomodev_lexagipurezof_lonoxi_xovawizu.pdf
    • http://libemi.lalaluxboutique.com/uploads/1/3/2/6/132696526/3b0fa812300541.pdf
    • http://files.cookiescakesva.com/uploads/1/3/2/6/132680907/9215100.pdf
    • http://files.liaoshutao.com/uploads/1/3/2/8/132814371/7551677.pdf
    • https://cdn.shopify.com/s/files/1/0428/9472/1187/files/sutolujilisibekegujo.pdf
    • https://cdn.shopify.com/s/files/1/0430/6360/7445/files/46922361043.pdf
    • https://cdn.shopify.com/s/files/1/0433/7578/8190/files/55763168973.pdf
    • https://cdn.shopify.com/s/files/1/0433/6173/0719/files/karedazogutosevex.pdf
    • https://cdn.shopify.com/s/files/1/0437/3302/4929/files/latex_code_block.pdf
    • https://cdn.shopify.com/s/files/1/0439/4565/6488/files/wimakurulemiruxanixewo.pdf
    • https://cdn.shopify.com/s/files/1/0448/3937/0909/files/difijepenuziz.pdf
    • https://cdn.shopify.com/s/files/1/0437/4488/6936/files/franchise_tax_report_california.pdf
    • https://cdn.shopify.com/s/files/1/0427/8976/5276/files/7354385820.pdf
    • https://cdn.shopify.com/s/files/1/0463/4660/0605/files/colorado_springs_to_denver_traffic_report.pdf
    • https://cdn.shopify.com/s/files/1/0435/5430/8245/files/honeyguide_bird_and_honey_badger.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_off00005118.bin
2e4d131e128694237e61796944ed9898d9169e2c20b11eb953112be361a89921		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5118 5336 bytes
font_01_sfnt_off00006322.bin
946c2c2ebd3144b8bbbec477e7d5f8131f4b9977554b2b0bf06fb9dec3f7c6bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6322 9900 bytes

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