Malicious PDF — malware analysis report

Static analysis result for SHA-256 9424dc5a415d616d…

MALICIOUS

PDF

43.8 KB Created: 2020-08-19 04:02:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8fb94661bfc6ef6956c07527446940cf SHA-1: 6981510cf4024d664a95da2353e97c0074bad2ea SHA-256: 9424dc5a415d616d2c2dc11b37f4bd234c7f6d8b920fb9cba0268f8f7aae1625
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=outlook++free+mac+os+x'. This URL is presented within the document body, suggesting a social engineering lure to trick users into clicking it. The document also contains a large number of embedded links, many pointing to Shopify domains, which is indicative of a link farm used for SEO poisoning or distributing malicious content.

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/pify?keyword=outlook++free+mac+os+x
    • http://files.learn-polish.pl/uploads/1/3/1/4/131453897/nogoli.pdf
    • http://files.ministerdebweddings.com/uploads/1/3/1/3/131379060/nurubotezu-zugebasupisobe-fobivizujan.pdf
    • http://files.edgemotorsportsrva.com/uploads/1/3/0/7/130738596/3344290.pdf
    • http://sezire.justaposeselfiemirror.co.uk/uploads/1/3/0/7/130738748/8352910.pdf
    • http://marosiv.mspark.org/uploads/1/3/1/0/131070382/jeloxominekeziwokod.pdf
    • https://cdn.shopify.com/s/files/1/0435/6040/3103/files/4g_speed_video_er.pdf
    • https://cdn.shopify.com/s/files/1/0428/9993/1295/files/20041338057.pdf
    • https://cdn.shopify.com/s/files/1/0432/5467/7662/files/vesedonukexuja.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mirogorozizodixomalejog.pdf
    • https://cdn.shopify.com/s/files/1/0429/8221/1733/files/witivebofudesagukitewu.pdf
    • https://cdn.shopify.com/s/files/1/0439/0676/0856/files/31369732108.pdf
    • https://cdn.shopify.com/s/files/1/0432/4527/3251/files/89924864222.pdf
    • https://cdn.shopify.com/s/files/1/0437/7916/2263/files/50001962826.pdf
    • https://cdn.shopify.com/s/files/1/0437/9679/1456/files/callan_method_book_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0440/3704/6422/files/hampton_bay_uc7078t_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/1040/9126/files/16966689068.pdf
    • https://cdn.shopify.com/s/files/1/0447/8923/5861/files/what_is_microsoft_mobile_plans.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://cdn.shopify.com/s/fil

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e1a.bin
8de5da4b06808bd9b2937343746c386ed8e1a9399c2dd24c2dd57556a89f6b76
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E1A 5184 bytes
font_01_sfnt_off00007faf.bin
3b2e01a096fcee3f9a292b80cbd2aee1063ad50d6308b917545ccb60ffac3ab4
pdf-font-stream PDF embedded font (sfnt) at offset 0x7FAF 10076 bytes