Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff3b265888d34052…

MALICIOUS

PDF

43.0 KB Created: 2020-08-12 09:22:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8316272e9d29aa26696783c9266ecd97 SHA-1: 81a2ac84d0a4e702cfbe02f8be530cd14d033675 SHA-256: ff3b265888d34052ef85d5fcf789951f0b5865998f85f3f6e16367837b61e5fe
120 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, ttraff.cc. The document body, though heavily obfuscated, contains text related to a 'project on adulteration of food for class 12 pdf' and the malicious URL itself, suggesting a social engineering lure. The PDF also contains a large number of external links, many hosted on cdn.shopify.com, which is indicative of a link farm designed to improve search engine ranking for 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=project+on+adulteration+of+food+for+class+12+pdf
    • http://files.geauxwarhawks.com/uploads/1/3/1/4/131438611/vobof_rulatuxerova_rodivalejavus_dizoramalig.pdf
    • http://lipeduf.krownandglory.com/uploads/1/3/0/8/130813765/radudo-tasesifaguzat.pdf
    • http://files.7625400.com/uploads/1/3/0/7/130776449/6602464.pdf
    • http://files.redteddypup.com/uploads/1/3/1/4/131483440/9122005.pdf
    • http://files.esainhospitality.com/uploads/1/3/0/7/130775607/gedawuw.pdf
    • http://files.redteddypup.com/uploads/1/3/1/4/131483440/9122005
    • https://cdn.shopify.com/s/files/1/0428/6860/5095/files/fitupe.pdf
    • https://cdn.shopify.com/s/files/1/0430/8520/1561/files/rivorowedisitulukegox.pdf
    • https://cdn.shopify.com/s/files/1/0430/5757/8138/files/68657380168.pdf
    • https://cdn.shopify.com/s/files/1/0433/4570/7162/files/mapum.pdf
    • https://cdn.shopify.com/s/files/1/0433/7565/7121/files/btec_business_level_3_book_1.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/85213016947.pdf
    • https://cdn.shopify.com/s/files/1/0429/9672/7962/files/85615189928.pdf
    • https://cdn.shopify.com/s/files/1/0427/9202/6271/files/pilijizelivugonumoxemixet.pdf
    • https://cdn.shopify.com/s/files/1/0434/7589/4422/files/51911216654.pdf
    • https://cdn.shopify.com/s/files/1/0433/9721/8458/files/18483038026.pdf
    • https://cdn.shopify.com/s/files/1/0436/0945/6803/files/83701707677.pdf
    • https://cdn.shopify.com/s/files/1/0428/3088/9126/files/biozone_ap_biology_1.pdf
    • https://cdn.shopify.com/s/files/1/0430/3863/8241/files/86837757883.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_off00006671.bin
b9790ea6f60ef0c1cefb3d1692dcb9ae50f8973a1385705665d95685ee84d2f5
pdf-font-stream PDF embedded font (sfnt) at offset 0x6671 5408 bytes
font_01_sfnt_off000078ef.bin
6ad3c664ee573d7cc96ae367ba1bcc1266202f2fab1114bbf5aa97951e230a5c
pdf-font-stream PDF embedded font (sfnt) at offset 0x78EF 10440 bytes