Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9e33cacdc324d5e…

MALICIOUS

PDF

41.7 KB Created: 2020-08-21 21:59:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cf17bd63d32b5168e396feefa0fefe18 SHA-1: 9426a1bdd66b97c06db030b4cc7ba7f9c71d7558 SHA-256: c9e33cacdc324d5edda3c975c5a8afa4464bdceac192fb660d13c52298fc525a
128 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 user guide, aiming to trick users into clicking it. The PDF also hosts a large number of external links, many pointing to Shopify, suggesting a link farm for SEO poisoning or distribution. The presence of a visual download button further supports a deceptive 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/pify?keyword=imanage+work+mobility+user+guide
    • http://poboge.kmblaw.com/uploads/1/3/2/3/132303338/9208297.pdf
    • http://giveme.stellathelight.com/uploads/1/3/1/8/131856257/9999842.pdf
    • http://files.aitech4u.com/uploads/1/3/1/6/131608037/jebibusenam-zevafa-nonekupovubipe-dulari.pdf
    • https://cdn.shopify.com/s/files/1/0433/6241/8847/files/budiwajabokejo.pdf
    • https://cdn.shopify.com/s/files/1/0432/0860/5859/files/mupumazijuzemodikoxija.pdf
    • https://cdn.shopify.com/s/files/1/0441/1323/2024/files/6396059885.pdf
    • https://cdn.shopify.com/s/files/1/0433/1739/5614/files/sidegize.pdf
    • https://cdn.shopify.com/s/files/1/0432/5959/2859/files/adobe_audition_offline_installer.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/39646295774.pdf
    • https://cdn.shopify.com/s/files/1/0434/1877/9815/files/57379218720.pdf
    • https://cdn.shopify.com/s/files/1/0437/5307/8933/files/77934679692.pdf
    • https://cdn.shopify.com/s/files/1/0431/7334/7488/files/17271269309.pdf
    • https://cdn.shopify.com/s/files/1/0436/0631/1070/files/croissant_sheet_recipes.pdf
    • https://cdn.shopify.com/s/files/1/0431/3825/2954/files/alimentation_definition.pdf
    • https://cdn.shopify.com/s/files/1/0431/2272/0922/files/boats_and_streams_short_tricks.pdf
    • https://cdn.shopify.com/s/files/1/0432/6424/5925/files/vitavopexabufopuravumov.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/files/1/0431/3825/2954/files/alimentation_definition.p

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006541.bin
81f7f4680a92c6063f9581016d0df25f84d62411c6550a474d5c20a78c65785a
pdf-font-stream PDF embedded font (sfnt) at offset 0x6541 5480 bytes
font_01_sfnt_off000077d7.bin
f1e40f996112ceb996ec012864f3cb4c755f859870ce6d25523abf9a46f4d092
pdf-font-stream PDF embedded font (sfnt) at offset 0x77D7 9780 bytes