Malicious PDF — malware analysis report

Static analysis result for SHA-256 59b7245c13761a9c…

MALICIOUS

PDF

36.6 KB Created: 2020-09-16 14:06:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c18be68ae51f813f36c766690d81938 SHA-1: b23c06046a563828e1130d1fd742ba95db3b25de SHA-256: 59b7245c13761a9ca8b97501b13292dd79bd93bccf407639110b120cbdb87357
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to SEO-optimized PDF files hosted on Shopify. One of the primary links directs to a known malicious redirector, 'ttraff.link', which likely serves as a gateway to further malicious content. The document body itself contains garbled text but includes the malicious redirector URL and several benign-looking PDF links, suggesting a lure to generate traffic and potentially deliver a payload.

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.link/wix?keyword=blacksmith+lab+unblocked+hacked
    • http://fibumeta.onesailorboutique.com/uploads/1/3/0/8/130874601/tirunuxuvu.pdf
    • http://vowowekul.tprrest.com/uploads/1/3/0/7/130776167/5433072.pdf
    • http://notafab.cisna.org/uploads/1/3/1/4/131436972/xagobanamanux-xedepev-tezat.pdf
    • http://files.janavalloneboudoir.com/uploads/1/3/2/8/132814742/tilomi-pipiperalokafus.pdf
    • http://wuvojeror.artscarafes.com/uploads/1/3/1/4/131407995/liwano_sotewivumatemu_povuk_sinukabexivozu.pdf
    • https://cdn.shopify.com/s/files/1/0433/3957/9546/files/calorie_counter_app_for_pc.pdf
    • https://cdn.shopify.com/s/files/1/0432/6051/0376/files/72101517807.pdf
    • https://cdn.shopify.com/s/files/1/0434/4922/1286/files/36036448694.pdf
    • https://cdn.shopify.com/s/files/1/0429/6704/0154/files/craftsman_gold_6._75_lawn_mower_manual.pdf
    • https://cdn.shopify.com/s/files/1/0427/9736/7452/files/bundle_exec_rspec_format.pdf
    • https://cdn.shopify.com/s/files/1/0463/0380/5600/files/kajadagazebuwadatabalema.pdf
    • https://cdn.shopify.com/s/files/1/0434/6898/0377/files/81701097121.pdf
    • https://cdn.shopify.com/s/files/1/0435/5915/7921/files/temidaxijefasutuxi.pdf
    • https://cdn.shopify.com/s/files/1/0429/3741/7891/files/best_reader_ipad_pencil.pdf
    • https://cdn.shopify.com/s/files/1/0432/9409/7576/files/ahmedabad_division_map.pdf
    • https://cdn.shopify.com/s/files/1/0434/6193/5261/files/lujawapotuguw.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_off00004e12.bin
67507dd68ce7df031a006b2d6eacaefd84aa0379d854a4cc0d0f5b9021d30c8f
pdf-font-stream PDF embedded font (sfnt) at offset 0x4E12 5336 bytes
font_01_sfnt_off0000600f.bin
5b7ebecf60a382b9ad5ac41dfd20b63d262956e3d45558ba35238b87d1688b75
pdf-font-stream PDF embedded font (sfnt) at offset 0x600F 10992 bytes