Malicious PDF — malware analysis report

Static analysis result for SHA-256 c83fac357c102d10…

MALICIOUS

PDF

50.9 KB Created: 2020-08-31 07:19:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 20f15c738b864609fec1db3ac8735812 SHA-1: 9591252950a47183ac4e67e41047e9f6e01a7c42 SHA-256: c83fac357c102d10f729894ed98d3778a0a311f76f767d9299dff90e998d14db
130 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a download for a camera manual. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the link points to known malicious infrastructure. The PDF_SEO_LINK_FARM heuristic indicates the document is part of a larger link farm, likely for SEO poisoning or distributing malicious content. The presence of a call-to-action phrase further supports the lure.

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.cc/wix?keyword=canon+7d+owners+manual
    • https://static.usrfiles.com/ugd/b8c837_79205009721042c7a088d05b4efaf80a.pdf
    • https://static.usrfiles.com/ugd/affaa6_944c8e2dc658455abbe709bba293d1af.pdf
    • https://static.usrfiles.com/ugd/b8c837_4f103243ff8346f791e0928d59f9e370.pdf
    • https://static.usrfiles.com/ugd/e23fbb_e1a7e18109984e509195612ab57d6d55.pdf
    • https://static.usrfiles.com/ugd/b8c837_0ff8e9464b7e449f957abea3bc35e932.pdf
    • https://cdn.shopify.com/s/files/1/0435/8206/2753/files/42181661448.pdf
    • https://cdn.shopify.com/s/files/1/0428/3862/2375/files/97518489356.pdf
    • https://cdn.shopify.com/s/files/1/0438/2890/4093/files/form_attribute_input_html5.pdf
    • https://static.usrfiles.com/ugd/b8c837_a8a5c00ffe6a4e989d73a36d8f216866.pdf
    • https://static.usrfiles.com/ugd/3e9e83_dbe1bb62592645adb2df66a53b4139d4.pdf
    • https://static.usrfiles.com/ugd/b8c837_d432e32bd3b54e0988582ef2b3f4adce.pdf
    • https://cdn.shopify.com/s/files/1/0431/9209/0784/files/vanirutigapij.pdf
    • https://cdn.shopify.com/s/files/1/0428/3524/7271/files/vetuvadolokuxovuvabini.pdf
    • https://cdn.shopify.com/s/files/1/0434/3794/9090/files/vidowaparumu.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_off00007fce.bin
0c2b57a42daa446afc82f5eca82b062503bc0f4e1a6c94e434717c711dea8313
pdf-font-stream PDF embedded font (sfnt) at offset 0x7FCE 5048 bytes
font_01_sfnt_off000090f9.bin
9898c0e3c8ac0d554387e94c2e846373e92d7967bd187fb191e6b83b2d334587
pdf-font-stream PDF embedded font (sfnt) at offset 0x90F9 14668 bytes