Malicious PDF — malware analysis report

Static analysis result for SHA-256 d19d1644d44c127a…

MALICIOUS

PDF

41.2 KB Created: 2020-08-29 18:22:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 582b33908cc9499b4e9b7a1a6b8d318c SHA-1: 41c25c73ca22e21ab55099ff8e689b2715bab08a SHA-256: d19d1644d44c127af646087406dda98ae915e2cf02a14fc8555a5521fe6ce942
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of these links, https://ttraff.club/wix?keyword=the+wolves+in+the+walls, is identified as a malicious redirector. This suggests the document's primary purpose is to direct users to malicious infrastructure, likely for further exploitation or phishing.

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.club/wix?keyword=the+wolves+in+the+walls
    • https://cdn.shopify.com/s/files/1/0429/7061/1861/files/full_form_of_all_computer_related_terms.pdf
    • https://cdn.shopify.com/s/files/1/0428/9314/8313/files/35545080437.pdf
    • https://cdn.shopify.com/s/files/1/0460/2032/9631/files/assamese_language_dj_song.pdf
    • https://cdn.shopify.com/s/files/1/0432/0408/3869/files/mopuwidekesedabatipu.pdf
    • https://cdn.shopify.com/s/files/1/0435/9864/3363/files/nivuzirosidetileg.pdf
    • https://cdn.shopify.com/s/files/1/0452/5198/5565/files/rajukipijaxobidizenezan.pdf
    • https://cdn.shopify.com/s/files/1/0438/1750/0834/files/cara_scan_canon_lide_110.pdf
    • https://cdn.shopify.com/s/files/1/0428/2669/4822/files/cissp_practice_exams_fifth_edition.pdf
    • https://cdn.shopify.com/s/files/1/0437/5419/3057/files/movie_and_tv_show_er_apk.pdf
    • https://cdn.shopify.com/s/files/1/0436/3812/8793/files/89707767866.pdf
    • https://cdn.shopify.com/s/files/1/0440/0896/4246/files/5322652122.pdf
    • https://cdn.shopify.com/s/files/1/0430/0144/6554/files/kujezagojatekitusufizo.pdf
    • https://cdn.shopify.com/s/files/1/0439/0728/5147/files/44328618650.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_off0000642d.bin
864aa310752a3591588d6e537ab56ad0099387beb423caab9510788ad2b1b122		 pdf-font-stream PDF embedded font (sfnt) at offset 0x642D 4780 bytes
font_01_sfnt_off00007480.bin
01e6cdd0087c18424796157a41bf35682e037307ad65784f0ec35585c776cf73		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7480 10360 bytes

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