Malicious PDF — malware analysis report

Static analysis result for SHA-256 39f26af6e3922da4…

MALICIOUS

PDF

44.6 KB Created: 2020-08-26 05:44:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 44e30b0b7415ab7e454b5906bad83ac5 SHA-1: 773f23e2003169bbc60ce2b588cbefe15647dec8 SHA-256: 39f26af6e3922da4868ed0607bfa0613cca3e474a572c1848cb8b402aa5c9877
128 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=canon+ts6020+scanner+driver'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains a reference to the malicious redirector URL and appears to present a call-to-action, likely a 'download' lure, consistent with the 'SE_DOWNLOAD_BUTTON' heuristic.

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.com/pify?keyword=canon+ts6020+scanner+driver
    • http://files.desjun.com/uploads/1/3/1/8/131856112/5cadfc85c59d.pdf
    • https://cdn.shopify.com/s/files/1/0432/0133/1360/files/jonisatewadugibi.pdf
    • https://cdn.shopify.com/s/files/1/0429/2804/6233/files/30008320567.pdf
    • https://cdn.shopify.com/s/files/1/0433/1791/9909/files/kuval.pdf
    • https://cdn.shopify.com/s/files/1/0435/4765/6343/files/2010_ada_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0433/3476/2654/files/lilesupo.pdf
    • https://cdn.shopify.com/s/files/1/0430/1540/5725/files/armies_of_the_balkan_wars_1912_13.pdf
    • https://cdn.shopify.com/s/files/1/0435/1416/7450/files/cadence_allegro_free_physical_viewer_16._5.pdf
    • https://cdn.shopify.com/s/files/1/0431/5506/2948/files/69387039876.pdf
    • https://cdn.shopify.com/s/files/1/0429/8915/8554/files/how_to_hack_quizlet_match_2017.pdf
    • https://cdn.shopify.com/s/files/1/0433/9200/8357/files/kill_team_data_cards.pdf
    • https://cdn.shopify.com/s/files/1/0436/4071/7462/files/39302113642.pdf
    • https://cdn.shopify.com/s/files/1/0433/3341/9166/files/jomovowanozimas.pdf
    • https://cdn.shopify.com/s/files/1/0435/5994/4353/files/bibliotheque_mathematique_et_informatique_udem_adresse.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_off0000669f.bin
0747dc1fe6941364dc67313ff081f59f570c4e3402537ca9f91dd155e376f929
pdf-font-stream PDF embedded font (sfnt) at offset 0x669F 5296 bytes
font_01_sfnt_off000078a8.bin
37f0a79070aff95d5444371f35f432b702c7100d2926faeeeaa1657709b40438
pdf-font-stream PDF embedded font (sfnt) at offset 0x78A8 14264 bytes