Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c78c213f4b9d20a…

MALICIOUS

PDF

42.6 KB Created: 2020-08-21 21:02:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8cfbd007ec9da3d7ebf4d1323fb56df0 SHA-1: 494d910058e5f9699e31a73358520f69f44fe752 SHA-256: 9c78c213f4b9d20a6d305449a693c23c85b33f4080120fed8fd63050d56bd009
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links redirects through 'ttraff.cc', a known malicious redirector, to a lure for a 'free slideshow template after effects'. This indicates a social engineering attempt to drive traffic to malicious sites. No scripts were extracted from this sample.

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=free+slideshow+template+after+effects
    • http://nikage.sustainablespaces.com/uploads/1/3/2/3/132302782/143cd56e4ef0.pdf
    • http://fuwil.soarohio.org/uploads/1/3/0/8/130874113/jabaxosotelibo-mavitudul-volagexijufor.pdf
    • https://cdn.shopify.com/s/files/1/0435/4270/8378/files/gta_4_pc_cheats.pdf
    • https://cdn.shopify.com/s/files/1/0434/7065/1542/files/mcquarrie_physical_chemistry.pdf
    • https://cdn.shopify.com/s/files/1/0435/1141/4943/files/xenibowimifo.pdf
    • https://cdn.shopify.com/s/files/1/0434/0314/9462/files/android_google_calendar_api_add_event.pdf
    • https://cdn.shopify.com/s/files/1/0431/1970/6279/files/steering_committee_interim_report.pdf
    • https://cdn.shopify.com/s/files/1/0429/2201/6934/files/4921693609.pdf
    • https://cdn.shopify.com/s/files/1/0427/4041/6678/files/jidokekob.pdf
    • https://cdn.shopify.com/s/files/1/0435/0027/3830/files/88830302239.pdf
    • https://cdn.shopify.com/s/files/1/0429/1143/2857/files/honda_generator_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/5215/4532/files/fomewo.pdf
    • https://cdn.shopify.com/s/files/1/0430/2284/4067/files/48981147222.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_off0000689b.bin
689a04e1564ca62c8222de67e8e1f8f0c330e8c7ca6dda0634744f177188291c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x689B 5440 bytes
font_01_sfnt_off00007b07.bin
1dcd6380be5726e1cf4e4b488557095ecd061e1a350a720f527346c1cc7651df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B07 10156 bytes

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