Malicious PDF — malware analysis report

Static analysis result for SHA-256 db2fa15fa304cf54…

MALICIOUS

PDF

40.6 KB Created: 2020-08-22 12:04:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54216c5612134fa054e4b09bf8bd63f1 SHA-1: a3225aea7a2ae43aa89c4fc8cb2ce7189dab5f0d SHA-256: db2fa15fa304cf54e0f56691d439ce3722d786375c554143f2799114683f46b1
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates a PDF link to known malicious redirector infrastructure, specifically `https://ttraff.cc/pify?keyword=ajith+photos+hd++viswasam`. The document body also contains this URL and a search query, suggesting a lure to trick users into clicking the malicious link. The presence of numerous other links, many hosted on Shopify, indicates a link farm designed to appear as legitimate content while distributing malicious URLs.

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=ajith+photos+hd++viswasam
    • http://files.iamroyalheir.com/uploads/1/3/1/3/131379615/keguwomileros-vebekeloje.pdf
    • http://files.mittminders.com/uploads/1/3/2/6/132695830/pidokofawifabaz-fexutomagi.pdf
    • http://files.queenofwandstarot.net/uploads/1/3/0/9/130969497/gipaduxulaki-fitugisog-xawomabadepotit.pdf
    • http://files.georgeryall.com/uploads/1/3/1/8/131856433/fa123d.pdf
    • http://files.centenniallakes.net/uploads/1/3/1/3/131382141/taxejedew.pdf
    • https://cdn.shopify.com/s/files/1/0432/2328/5928/files/ninoxetiluzixaberuze.pdf
    • https://cdn.shopify.com/s/files/1/0427/8868/3932/files/65362888132.pdf
    • https://cdn.shopify.com/s/files/1/0430/7252/0352/files/23196958978.pdf
    • https://cdn.shopify.com/s/files/1/0441/2823/9768/files/biglietto_da_visita_formato_word.pdf
    • https://cdn.shopify.com/s/files/1/0431/8488/1825/files/ruvagerevefabotegut.pdf
    • https://cdn.shopify.com/s/files/1/0435/8055/5419/files/zetoxetusesu.pdf
    • https://cdn.shopify.com/s/files/1/0427/8249/0791/files/47773976776.pdf
    • https://cdn.shopify.com/s/files/1/0430/7773/0464/files/tuzusejexi.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000054d6.bin
5adefa81294e41ce15ad0eded4d1a871fd3ca656032b1cfa60a8aa6e4ee7f177		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54D6 4852 bytes
font_01_sfnt_off0000656b.bin
ca467b485eb08fdd24712850f1a1c0acf75ccad3373977a552bf3f80f7fee4b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x656B 10020 bytes
font_02_sfnt_off000087bf.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87BF 4324 bytes

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