Malicious PDF — malware analysis report

Static analysis result for SHA-256 57f85222b7267f3d…

MALICIOUS

PDF

33.1 KB Created: 2020-08-12 17:46:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0181e62912894957f93736c02aec4ba1 SHA-1: 6330ba59b998040fd969a8100b9265940c2aca64 SHA-256: 57f85222b7267f3debb713737c968d814eeb5a32f6c3c1c13de4c1d051d78343
150 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Alexandria moulding catalog pdf' and the malicious URL, suggesting a lure to disguise the malicious redirector. The ML classifier also strongly indicated maliciousness.

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.ru/pify?keyword=alexandria+moulding+catalog+pdf
    • http://files.seasoulself.com/uploads/1/3/1/4/131438245/afb14246.pdf
    • http://files.dazcoautobodyclips.com/uploads/1/3/0/7/130776814/3319710.pdf
    • http://files.narenwi.org/uploads/1/3/0/7/130776001/merugome.pdf
    • https://cdn.shopify.com/s/files/1/0440/5483/9461/files/gsm_based_vehicle_tracking_system.pdf
    • https://cdn.shopify.com/s/files/1/0430/3290/3833/files/tropical_zoology_download.pdf
    • https://cdn.shopify.com/s/files/1/0441/4432/8856/files/kerokukena.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tevegijetowid.pdf
    • https://cdn.shopify.com/s/files/1/0430/0151/2090/files/17933622695.pdf
    • https://cdn.shopify.com/s/files/1/0427/6014/3014/files/minapelukegewoj.pdf
    • https://cdn.shopify.com/s/files/1/0429/9322/1783/files/megukamokurapozum.pdf
    • https://cdn.shopify.com/s/files/1/0433/3069/9414/files/7277999055.pdf
    • https://cdn.shopify.com/s/files/1/0429/5095/1066/files/podizimiwopaxagorefa.pdf
    • https://cdn.shopify.com/s/files/1/0434/1766/5703/files/43492057005.pdf
    • https://cdn.shopify.com/s/files/1/0432/8187/5112/files/weight_training_schedule.pdf
    • https://cdn.shopify.com/s/files/1/0439/5322/5883/files/not_falling_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0434/0056/0803/files/88667955135.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_off000045f3.bin
748372f595a2ea3fb12bc6b29cdbcfa970e8d332c1a4f4a4764af855441d8b7e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x45F3 5356 bytes
font_01_sfnt_off00005817.bin
6ab6a3cb1d649bf9b1e20d528be941f3b09ea63ead24a5048534b42761f9a9fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5817 9272 bytes

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