Malicious PDF — malware analysis report

Static analysis result for SHA-256 d70008700289f331…

MALICIOUS

PDF

65.6 KB Created: 2020-08-30 07:07:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 802f28daadaf76431643f8b092ad9083 SHA-1: 6667c1834ec9873c0c3e032206358db593c1bf7e SHA-256: d70008700289f331bd99c37312b9bfda1fdffe34ee18cfe0701403164c6cc0f7
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, which points to the URL 'https://ttraff.cc/wix?keyword=unicode+a+traductor+de+texto'. The document body, though heavily obfuscated, contains this same URL, suggesting it is the primary lure. The file also contains a heuristic for a PDF link farm, indicating a broader campaign to generate traffic. The presence of a malicious redirector strongly suggests this PDF is used for phishing or to deliver further malware.

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.cc/wix?keyword=unicode+a+traductor+de+texto
    • https://cdn.shopify.com/s/files/1/0427/4126/8647/files/77307976087.pdf
    • https://cdn.shopify.com/s/files/1/0431/8589/7627/files/juvawudanazenizemawor.pdf
    • https://cdn.shopify.com/s/files/1/0435/4146/3204/files/xopudokegusineveb.pdf
    • https://static.usrfiles.com/ugd/b8c837_649517d3e2b14ba1816d4229783b3e13.pdf
    • https://static.usrfiles.com/ugd/b8c837_965c8c0373814048ad8d9eb9b11ac205.pdf
    • https://static.usrfiles.com/ugd/de3d83_6f292b981b574aea80bb1877edc27de7.pdf
    • https://static.usrfiles.com/ugd/36f25b_8685f6099a9c425c97c275d513e68622.pdf
    • https://static.usrfiles.com/ugd/12745a_019b2f07a24945d6b9a8bb859b38cb89.pdf
    • https://cdn.shopify.com/s/files/1/0430/0298/6659/files/derarufopim.pdf
    • https://cdn.shopify.com/s/files/1/0432/0424/7715/files/37703361766.pdf
    • https://cdn.shopify.com/s/files/1/0433/3951/4006/files/kindle_fire_hd_manual_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/6309/1112/files/16969203484.pdf
    • https://cdn.shopify.com/s/files/1/0438/0481/9613/files/thetford_cassette_toilet_c2_repair_manual.pdf
    • https://static.usrfiles.com/ugd/b8c837_e022dddd4185465698943bf8c13a8487.pdf
    • https://static.usrfiles.com/ugd/b8c837_acd4e2360e3442e3b86e781b90b26e2c.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/
    • https://static.usrfiles.com/ugd/12745a_019b2f07

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bbe4.bin
518596ad6b8b6b781be7ccc03a289e2941e52349bac2ddeb1d6f027a4cb30b4b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBBE4 4780 bytes
font_01_sfnt_off0000cc2d.bin
9b547f0e2c8a882734cffce8a5f561f0c452eb1d82b462aa710406b19b8a5e71		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCC2D 13804 bytes

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