Malicious PDF — malware analysis report

Static analysis result for SHA-256 d80125c2d4efcde5…

MALICIOUS

PDF

49.3 KB Created: 2020-08-13 22:59:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e7ae68d0688f682118d003ece51704c7 SHA-1: bfcc4e53e0532a448c7b1a4901e0af15f590b93b SHA-256: d80125c2d4efcde5bf824befec103b6615242843307e0cb1fedff42eae1abb23
130 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying it as a PDF link farm. One of the primary links, 'https://ttraff.ru/pify?keyword=borehole+test+report', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a 'Borehole test report' and includes urgency language, suggesting a lure to encourage clicks. No scripts were extracted, but the sheer volume of links and the malicious redirector indicate a probable phishing or malware distribution attempt.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.ru/pify?keyword=borehole+test+report
    • http://xozavidax.wisdombytheletter.com/uploads/1/3/2/8/132814964/padiwivatafozig-wuxiluvasifa-nixitokebimu.pdf
    • http://files.micheleroldanshaw.com/uploads/1/3/1/4/131437812/5629357.pdf
    • http://mawak.thesomersetangler.co.uk/uploads/1/3/1/4/131453046/137395.pdf
    • https://cdn.shopify.com/s/files/1/0429/9672/7962/files/lomova.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lozafawofife.pdf
    • https://cdn.shopify.com/s/files/1/0432/5359/6310/files/wemegaxisoparerevalezaz.pdf
    • https://cdn.shopify.com/s/files/1/0436/9580/0475/files/catering_menu.pdf
    • https://cdn.shopify.com/s/files/1/0431/9982/4032/files/sinozuzusuwajev.pdf
    • https://cdn.shopify.com/s/files/1/0438/5298/8566/files/clinically_oriented_anatomy_by_keith_moore_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/2710/2887/files/ponibazokaso.pdf
    • https://cdn.shopify.com/s/files/1/0431/3127/3365/files/giteta.pdf
    • https://cdn.shopify.com/s/files/1/0434/6360/6429/files/sifukeminajowexijunidi.pdf
    • https://cdn.shopify.com/s/files/1/0431/6954/6395/files/kobaxalumujajekig.pdf
    • https://cdn.shopify.com/s/files/1/0430/5331/8306/files/kimozitufok.pdf
    • https://cdn.shopify.com/s/files/1/0431/6784/2459/files/94711529366.pdf
    • https://cdn.shopify.com/s/files/1/0437/7745/8334/files/biochemistry_textbook_lehninger.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_off0000857c.bin
5cd377527024f7fdb03d1aa0274b5922f729a0b3a5092785c08d0be66007c093
pdf-font-stream PDF embedded font (sfnt) at offset 0x857C 4744 bytes
font_01_sfnt_off00009599.bin
bbdbc3f83ff48de273f7e2dada240160309e1e2df48d5064895d25b06055134a
pdf-font-stream PDF embedded font (sfnt) at offset 0x9599 10148 bytes