Malicious PDF — malware analysis report

Static analysis result for SHA-256 d907d30df7920491…

MALICIOUS

PDF

37.3 KB Created: 2020-08-25 09:30:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4acbf718819cdc5547883eee56c46813 SHA-1: 627b66baf154147320908e99484df07bd6056824 SHA-256: d907d30df792049104dd14adf4d690ce8969242e7de6166234161828bca5b6fe
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=seagull+bartender+driver'. Another critical heuristic identified a PDF link farm, with many links pointing to shopify.com domains. The document body contains garbled text but also includes the malicious redirector URL and several benign-looking PDF URLs. The primary attack pattern appears to be luring the user to malicious sites through a link farm.

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.com/pify?keyword=seagull+bartender+driver
    • http://files.septictankpumpinggwinett.com/uploads/1/3/0/7/130738622/e6631b4bc964d8.pdf
    • https://cdn.shopify.com/s/files/1/0428/9842/3967/files/44440646220.pdf
    • https://cdn.shopify.com/s/files/1/0460/1328/4511/files/high_cholesterol_treatment_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0438/2379/2285/files/35143825928.pdf
    • https://cdn.shopify.com/s/files/1/0428/0067/7031/files/ruturixuvud.pdf
    • https://cdn.shopify.com/s/files/1/0432/7807/4020/files/32697380446.pdf
    • https://cdn.shopify.com/s/files/1/0441/1860/5976/files/free_genogram_template.pdf
    • https://cdn.shopify.com/s/files/1/0434/8762/5369/files/campaign_cartographer_torrent.pdf
    • https://cdn.shopify.com/s/files/1/0435/9464/5672/files/nujisojabugifibaw.pdf
    • https://cdn.shopify.com/s/files/1/0454/2988/3048/files/daxosasabak.pdf
    • https://cdn.shopify.com/s/files/1/0434/1999/2222/files/sebopexive.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_off000048d2.bin
b1ca62284310c16c87efebffa48f9189819cc3064619dc56155ee448a444bb59		 pdf-font-stream PDF embedded font (sfnt) at offset 0x48D2 4888 bytes
font_01_sfnt_off0000596e.bin
fc1a42bb99669541ac824f0298defb902e33302619b072109d9d00dff3f4aa3f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x596E 9776 bytes
font_02_sfnt_off00007af8.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AF8 4324 bytes

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