Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ae8291830e9fa60…

MALICIOUS

PDF

46.7 KB Created: 2020-08-21 10:27:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2f9d0e94505c9ecb77908fd16535504c SHA-1: 9a6d026e7da6a67fe1774f0022dff73e952c9907 SHA-256: 4ae8291830e9fa6008f1910bb173d4edba10d36d57531aef90ed280353bc3ab0
130 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, forming a link farm, with a primary malicious redirector URL. The document body and heuristics indicate a lure to download 'Adobe Flash Player for iPhone 8', which is a common pretext for malware delivery. The presence of a call-to-action button further supports this malicious workflow.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=adobe+flash+player+for+iphone+8
    • http://files.cloudvalleycashmere.com/uploads/1/3/1/4/131437660/3a02d6cc6e8e1c.pdf
    • http://files.interdisciplinaryexchanges.org/uploads/1/3/1/4/131453559/bc4a72e97481.pdf
    • http://letiladun.alohachapter99s.org/uploads/1/3/1/3/131379803/496f453b.pdf
    • http://neraxol.mictkinofest.com/uploads/1/3/1/3/131380042/8207dabdb.pdf
    • https://cdn.shopify.com/s/files/1/0430/4103/0293/files/57393872030.pdf
    • https://cdn.shopify.com/s/files/1/0439/6479/2990/files/32056035062.pdf
    • https://cdn.shopify.com/s/files/1/0431/8520/9506/files/52144090723.pdf
    • https://cdn.shopify.com/s/files/1/0465/4684/5854/files/arcform_slimfoot_review.pdf
    • https://cdn.shopify.com/s/files/1/0435/6653/0719/files/contemporary_approaches_to_psychology.pdf
    • https://cdn.shopify.com/s/files/1/0428/5782/4419/files/69253679516.pdf
    • https://cdn.shopify.com/s/files/1/0428/3600/0931/files/rubeke.pdf
    • https://cdn.shopify.com/s/files/1/0431/6597/4690/files/nelemopepibikapaxibafiv.pdf
    • https://cdn.shopify.com/s/files/1/0430/5249/9098/files/bugugibupilutapokejewe.pdf
    • https://cdn.shopify.com/s/files/1/0429/9587/6003/files/40856307588.pdf
    • https://cdn.shopify.com/s/files/1/0430/4191/5042/files/74992728840.pdf
    • https://cdn.shopify.com/s/files/1/0432/1869/8400/files/joseph_king_of_dreams_full_movie_123movies.pdf
    • https://cdn.shopify.com/s/files/1/0433/6759/6184/files/negitevafobazasusud.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_off000072d9.bin
84e380fd11c344e14f10cbd3076d23465b5c8ba91c88ece5a08ff2e0ab8caf93
pdf-font-stream PDF embedded font (sfnt) at offset 0x72D9 5552 bytes
font_01_sfnt_off000085b0.bin
da81b4f926ba7f840ef8dcec390fa8a79b0ab83db3dfcf70636bad33465066b0
pdf-font-stream PDF embedded font (sfnt) at offset 0x85B0 12444 bytes