Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe63921f4e65c24b…

MALICIOUS

PDF

42.1 KB Created: 2020-09-13 10:19:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 457e0517948781b5b461ed1032deb85c SHA-1: 72362133c0c646d42ac22f6df9110735d7e40d89 SHA-256: fe63921f4e65c24b6a6936577ec8374ee209d77ca93bd6fe2ff2f23adf564eb2
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.club/pify?keyword=rocks+and+minerals+worksheet+pdf'. This indicates an attempt to redirect the user to a malicious site, likely for phishing or malware distribution. The document body, though heavily obfuscated, also contains this URL, reinforcing its role in the attack. The presence of numerous other PDF links suggests a link farm or SEO poisoning tactic to obscure the malicious destination.

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.club/pify?keyword=rocks+and+minerals+worksheet+pdf
    • https://cdn.shopify.com/s/files/1/0430/5240/0789/files/57719606301.pdf
    • https://cdn.shopify.com/s/files/1/0433/0582/8520/files/wosari.pdf
    • https://cdn.shopify.com/s/files/1/0429/3305/9737/files/kalozobeninafitiwi.pdf
    • https://cdn.shopify.com/s/files/1/0482/4544/0666/files/tabel_ppm_nutrisi_hidroponik.pdf
    • https://cdn.shopify.com/s/files/1/0432/6237/8152/files/20802816406.pdf
    • https://cdn.shopify.com/s/files/1/0430/4365/1735/files/formation_bijoux_fantaisie_bordeaux.pdf
    • https://cdn.shopify.com/s/files/1/0429/0176/6310/files/apgar_familiar_actualizado.pdf
    • https://static.usrfiles.com/ugd/027f51_db22b568f6ec422ca59001092ee18008.pdf
    • https://static.usrfiles.com/ugd/b8c837_9f2916d2f0f442a685aecd313d6cc282.pdf
    • https://static.usrfiles.com/ugd/80c1db_26e4eb6032604c0682f3f5c31c721a69.pdf
    • https://static.usrfiles.com/ugd/cbe325_250f0b58d274403fac98def044c4be95.pdf
    • https://static.usrfiles.com/ugd/e2f7e1_5332e197efec4f3db9e8dec2cc1abd1b.pdf
    • https://cdn.shopify.com/s/files/1/0434/6842/3330/files/jopatasilavagid.pdf
    • https://cdn.shopify.com/s/files/1/0432/9363/8811/files/free_durable_power_of_attorney_form_florida.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_off00006573.bin
6f7c0efd9c38da3dd20ca1be486c04b01000ed188be161bee7b96429b76a6b3b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6573 5560 bytes
font_01_sfnt_off0000784f.bin
ac26c4d5b3e554be5541d72109850e64146a60d566a6eb69f2cb27215182943c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x784F 10428 bytes

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