Malicious PDF — malware analysis report

Static analysis result for SHA-256 372ea9feb45d4b09…

MALICIOUS

PDF

41.4 KB Created: 2020-08-16 10:58:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e96a26d01b55f275fd6f2a50dad5377 SHA-1: fee7d47af658179e4ff815c4d3da85829c0e7383 SHA-256: 372ea9feb45d4b0990abb824f9e3057b170e65caf5a455e1a6520acf7ea9f2fb
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. The document body also contains this URL, along with a call-to-action phrase suggesting a download lure. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy, likely to obscure the malicious destination. The primary malicious URL is 'https://ttraff.cc/pify?keyword=magical+book+series+analytical+reasoning+pdf'.

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=magical+book+series+analytical+reasoning+pdf
    • http://files.drugfreeharrisoncountywv.org/uploads/1/3/2/6/132695575/218ee2c5e.pdf
    • http://files.youthadvocatespdx.org/uploads/1/3/1/6/131637881/depisaf_tiwekofebukumo.pdf
    • http://wuveli.sarahhawkyard.com/uploads/1/3/2/3/132303382/dukaxikememepijagiz.pdf
    • http://files.maslowspeak.com/uploads/1/3/1/4/131453934/3554054.pdf
    • https://cdn.shopify.com/s/files/1/0434/3998/0710/files/definitive_software_library.pdf
    • https://cdn.shopify.com/s/files/1/0435/6754/6527/files/66788310122.pdf
    • https://cdn.shopify.com/s/files/1/0430/0052/9049/files/39373749163.pdf
    • https://cdn.shopify.com/s/files/1/0452/1666/1664/files/cheddar_gorge_sport_climbing_guide.pdf
    • https://cdn.shopify.com/s/files/1/0429/5101/6601/files/58399010489.pdf
    • https://cdn.shopify.com/s/files/1/0429/9050/2051/files/62922789295.pdf
    • https://cdn.shopify.com/s/files/1/0429/9672/7957/files/20543668991.pdf
    • https://cdn.shopify.com/s/files/1/0432/4543/7083/files/5840684718.pdf
    • https://cdn.shopify.com/s/files/1/0429/8814/2743/files/alimentacion_enteral_por_sonda.pdf
    • https://cdn.shopify.com/s/files/1/0430/6590/1210/files/sorajamotupativaluvomegid.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004b29.bin
d1d23934372405e6cc50ca10e2cc65d330388804e0a809325982af11fc2acad9
pdf-font-stream PDF embedded font (sfnt) at offset 0x4B29 5424 bytes
font_01_sfnt_off00005d9f.bin
8db65adc699bed2ed4e99b174e414cace916d9ae25f4e5597e3d94de4d1667c8
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D9F 2116 bytes
font_02_sfnt_off00006747.bin
5728f4cdb95f5dd9b40d8ab0836737aa3f8f178fe9503dadabad85cf42d7e52b
pdf-font-stream PDF embedded font (sfnt) at offset 0x6747 10176 bytes
font_03_sfnt_off00008a16.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x8A16 4324 bytes