Malicious PDF — malware analysis report

Static analysis result for SHA-256 feec1b2cc0177b43…

MALICIOUS

PDF

52.0 KB Created: 2020-09-19 17:11:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3a6fc87c90a0918e3605b1e9c2098542 SHA-1: 2056e45e3d590e1c032fb4c8a9e66c964767191b SHA-256: feec1b2cc0177b432f85ec70a1333aa7e5903740096df8b2a44571c84bd3768b
120 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, disguised with a keyword related to a thermostat manual. This suggests a phishing or malware delivery attempt. The PDF also hosts a large number of links, many pointing to benign Shopify URLs, likely as part of an SEO farm to obscure the malicious redirector. No scripts were extracted, but the primary malicious activity is the redirection to the ttraff.club domain.

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/wix?keyword=braeburn+thermostat+1020+manual
    • http://menixuje.ornamentsofexpression.com/uploads/1/3/1/3/131380183/mobebirudis-zagexen-pufeno.pdf
    • http://davizawi.mariettasquarefarmersmarket.com/uploads/1/3/0/8/130873951/figenikenozivoz.pdf
    • http://pezazisep.sigroymusic.com/uploads/1/3/1/1/131164131/2568804.pdf
    • https://cdn.shopify.com/s/files/1/0437/4659/0872/files/belajar_bahasa_arab_asas.pdf
    • https://cdn.shopify.com/s/files/1/0434/7048/7712/files/18436148086.pdf
    • https://cdn.shopify.com/s/files/1/0438/6209/8085/files/pititujunimirewasukiluda.pdf
    • https://cdn.shopify.com/s/files/1/0430/1104/7575/files/begowazexegupesizu.pdf
    • https://cdn.shopify.com/s/files/1/0430/9050/9973/files/gixonanokutoboluseduzeped.pdf
    • https://8a118a22-3fe9-4b96-90a7-63288c7cb195.filesusr.com/ugd/b85eb0_d0533bc268ee46a0afcf8897d6751d5e.pdf?index=true
    • https://63d69f86-ba14-445c-8f37-e48ec1e8984d.filesusr.com/ugd/d017d5_128b9ce854064c08acfc03480aff71bb.pdf?index=true
    • https://0bf18dc0-968c-47e9-84f6-53605ef5983f.filesusr.com/ugd/63022f_a2ae1cfb6f964caaa37c5354d336780f.pdf?index=true
    • https://8530ede6-bb65-45f7-a33f-a2e3de6665af.filesusr.com/ugd/a8ca0f_7c6490903803486bb85b314102a55a81.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0435/5650/3713/files/second_chance_thrift_store_crossville_tn.pdf
    • https://cdn.shopify.com/s/files/1/0432/7745/1428/files/95981999538.pdf
    • https://cdn.shopify.com/s/files/1/0427/6004/4710/files/2643267824.pdf
    • https://cdn.shopify.com/s/files/1/0433/1424/9886/files/fozugosuxum.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_off00008069.bin
4b1071b868f134bfeca71b99ef884ef1ff7ee9831b2879aa4db8d79c0de6c230
pdf-font-stream PDF embedded font (sfnt) at offset 0x8069 5440 bytes
font_01_sfnt_off000092bb.bin
7657a50082172079bb6d7b543154440f42b898a8c8acc6f5218cc62cc4ef8e9b
pdf-font-stream PDF embedded font (sfnt) at offset 0x92BB 15376 bytes