Malicious PDF — malware analysis report

Static analysis result for SHA-256 f012c13c58147cf2…

MALICIOUS

PDF

55.2 KB Created: 2020-08-19 19:11:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 83ba3976e377cf388ad01874afc450d3 SHA-1: e87e458e06d8d07b19201ad34bedbeaca7398c37 SHA-256: f012c13c58147cf2d34a84954dc1db70680195892b5aa53718306c138fb2b40e
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 many pointing to a redirector service. This suggests a phishing or malicious content delivery attempt, where the redirector is used to obscure the true destination. The presence of a link farm heuristic further supports this, indicating an attempt to distribute malicious content widely. No scripts were extracted, and the document body is heavily obfuscated, but the link structure is the primary indicator of malicious intent.

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=bleacher+report+nfl+consensus+picks
    • http://files.heathersansonephotography.com/uploads/1/3/1/1/131163492/moxorunepinepasi.pdf
    • http://files.jameshuntermusic.com/uploads/1/3/2/8/132814305/4900113.pdf
    • http://jutuzonuf.languagesnsw-greek.com/uploads/1/3/1/3/131383791/xediv.pdf
    • https://cdn.shopify.com/s/files/1/0432/7263/4533/files/adventures_of_tintin_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/6693/9799/files/mindless_behavior_net_worth.pdf
    • https://cdn.shopify.com/s/files/1/0438/8575/6568/files/rogiwutejetojoreji.pdf
    • https://cdn.shopify.com/s/files/1/0433/2588/2518/files/nubugikatigiwimivizafaf.pdf
    • https://cdn.shopify.com/s/files/1/0435/9005/8152/files/8176385551.pdf
    • https://cdn.shopify.com/s/files/1/0435/5496/3617/files/65126928939.pdf
    • https://cdn.shopify.com/s/files/1/0432/1440/5793/files/mopimubeke.pdf
    • https://cdn.shopify.com/s/files/1/0430/9821/0461/files/project_report_on_electricity_billing_system.pdf
    • https://cdn.shopify.com/s/files/1/0440/9769/9992/files/dentrix_g6_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/96139159727.pdf
    • https://cdn.shopify.com/s/files/1/0428/1332/5471/files/19762174323.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_off00009b7c.bin
79c9625cffffd7db40883751ad88dee2013fc702306d54991a133b28bd0b91da
pdf-font-stream PDF embedded font (sfnt) at offset 0x9B7C 5216 bytes
font_01_sfnt_off0000ad2c.bin
e3f3f0f9119a9d4f85db6203a0d4107257da930c1a0642eef12d1bba60e1d947
pdf-font-stream PDF embedded font (sfnt) at offset 0xAD2C 10224 bytes