Malicious PDF — malware analysis report

Static analysis result for SHA-256 c41dff9f4a73cd1b…

MALICIOUS

PDF

34.7 KB Created: 2020-08-18 19:00:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ec64ebe33f886a290b1693d0a2d81e0 SHA-1: a84b60ce3def359cc812a06f95bbec89e03fcfac SHA-256: c41dff9f4a73cd1bcb088ec3cc2ba2c599e5163bd7db71513c9fa402e3367006
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 heuristic identifying it as a PDF SEO link farm. One of the primary links directs to a known malicious redirector service, ttraff.cc, which is likely used to obscure the final destination of the malicious content. The presence of numerous links suggests a broad distribution attempt, characteristic of phishing or scam campaigns.

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=abp+electronics+full+form
    • http://files.alainolivier.ca/uploads/1/3/1/8/131856398/rugobumoroj_women_nofajufajomad_fomimom.pdf
    • http://demal.stensolo.com/uploads/1/3/1/8/131857334/a54682e6de.pdf
    • https://cdn.shopify.com/s/files/1/0431/8907/6117/files/foranofidurisasabimepa.pdf
    • https://cdn.shopify.com/s/files/1/0436/2207/2480/files/club_car_wiring_diagram_36_volt.pdf
    • https://cdn.shopify.com/s/files/1/0431/0011/1009/files/60899756863.pdf
    • https://cdn.shopify.com/s/files/1/0436/0473/8206/files/digestive_system_worksheet_grade_8.pdf
    • https://cdn.shopify.com/s/files/1/0431/7492/0347/files/fegopisalikadol.pdf
    • https://cdn.shopify.com/s/files/1/0451/0813/4053/files/types_of_bitumen_used_for_road_construction.pdf
    • https://cdn.shopify.com/s/files/1/0432/1935/3767/files/urllib2_vs_urllib3.pdf
    • https://cdn.shopify.com/s/files/1/0433/8640/5029/files/elementary_statistics_larson.pdf
    • https://cdn.shopify.com/s/files/1/0431/6934/9794/files/nowajipamimebiligijimuk.pdf
    • https://cdn.shopify.com/s/files/1/0429/7008/7587/files/fudib.pdf
    • https://cdn.shopify.com/s/files/1/0434/0868/7269/files/pewepivopaxuru.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_off00004ac1.bin
2dbb07a6e667d1d70cf96724c47cb0ed0d76cb8752f1b43ddfa06c6187c8db42		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4AC1 5080 bytes
font_01_sfnt_off00005beb.bin
e4f0604c7aeb40293338176f3f2a086ec7f549d342d084084c10f16bcbc4d8fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BEB 10192 bytes

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