Malicious PDF — malware analysis report

Static analysis result for SHA-256 5172777245aa3b59…

MALICIOUS

PDF

38.6 KB Created: 2020-08-22 19:27:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: da0c28cb434b3e663b2f3027169d083e SHA-1: d640dd09e5e45918968ba719607ea10bc6545126 SHA-256: 5172777245aa3b597fb7efd213eb2b3fbf2f3d4a14d4ca716b4b207cd3e5fd9b
128 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body also contains the same redirector URL and a phrase suggesting a download lure. This indicates a likely attempt to distribute malware, possibly an application, via a link farm and redirector.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=hungry+shark+apk+indir
    • http://files.toolbox2teach.com/uploads/1/3/0/7/130739264/dekodokuweg.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fedixudarat.pdf
    • https://cdn.shopify.com/s/files/1/0434/6390/1348/files/rupaputuniriwukofuj.pdf
    • https://cdn.shopify.com/s/files/1/0432/2836/4968/files/66040827152.pdf
    • https://cdn.shopify.com/s/files/1/0430/8582/4154/files/pexonuvuzoma.pdf
    • https://cdn.shopify.com/s/files/1/0431/8799/4792/files/64535741766.pdf
    • https://cdn.shopify.com/s/files/1/0431/9592/4637/files/bench_test_starter.pdf
    • https://cdn.shopify.com/s/files/1/0434/2120/4631/files/nimunedi.pdf
    • https://cdn.shopify.com/s/files/1/0437/9879/0301/files/angielski_wiczenia_sownictwo.pdf
    • https://cdn.shopify.com/s/files/1/0459/2658/0375/files/geethanjali_new_movie_naa_songs.pdf
    • https://cdn.shopify.com/s/files/1/0431/1128/4885/files/76861317564.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_off00005097.bin
4b476ed025ad4431e340d7b8cb5c7a8d295e4ab3da35b29129cdaa9d88a6c887		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5097 5316 bytes
font_01_sfnt_off000062a5.bin
aa92d86e2f56cf8d28420feb690d05dde5f1b2a0e1b7684dbf5cb5f84f1dd995		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62A5 13960 bytes

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