Malicious PDF — malware analysis report

Static analysis result for SHA-256 3306a203bbdc07cc…

MALICIOUS

PDF

41.1 KB Created: 2020-08-01 09:38:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 32df985d991345668b278945ba8f9308 SHA-1: a35cb6330268e5c82b1931750d0223ab8d4337f7 SHA-256: 3306a203bbdc07cc17051eff39da6abe26b692648a5805361d416f33c6dc5664
128 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is 'https://ttraff.cc/pify?keyword=rational+software+architect+wiki', which is likely used to redirect users to a phishing or malware-hosting site. Another heuristic indicates a link farm, with 'https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32732230761.pdf' being the first URL in this farm. The document body, though heavily obfuscated, contains these URLs, suggesting a social engineering lure.

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.cc/pify?keyword=rational+software+architect+wiki
    • http://files.glassandsticks.com/uploads/1/3/1/3/131381919/57493b477bd.pdf
    • http://files.bertpro.com/uploads/1/3/1/1/131164520/towedimaxan.pdf
    • http://files.mapleafdals.com/uploads/1/3/1/6/131607683/xaziposoxegi_jogumadanokaraz_gimowewis_lejoraru.pdf
    • http://files.hickoryridgeowls.org/uploads/1/3/2/7/132740553/9e903b27d1b96d.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32732230761.pdf
    • https://cdn.shopify.com/s/files/1/0430/4273/4237/files/87588465986.pdf
    • https://cdn.shopify.com/s/files/1/0437/6798/8376/files/bupejotarefuje.pdf
    • https://cdn.shopify.com/s/files/1/0431/3913/7702/files/xujivowopinoguwurirew.pdf
    • https://cdn.shopify.com/s/files/1/0439/3664/5275/files/12947373988.pdf
    • https://cdn.shopify.com/s/files/1/0439/3821/8152/files/45935317891.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sujaxitedidubabupopivup.pdf
    • https://cdn.shopify.com/s/files/1/0434/7628/7645/files/vuzinovewuwo.pdf
    • https://cdn.shopify.com/s/files/1/0437/8004/6997/files/josiwanegidozipital.pdf
    • https://cdn.shopify.com/s/files/1/0432/9832/4638/files/savudikivojimubi.pdf
    • https://cdn.shopify.com/s/files/1/0439/3703/8494/files/zizigisizakemosexexat.pdf
    • https://cdn.shopify.com/s/files/1/0436/0952/2339/files/wemelitupisurodonajopog.pdf
    • https://cdn.shopify.com/s/files/1/0430/3103/6053/files/jaruvikivevasifoluso.pdf
    • https://cdn.shopify.com/s/files/1/0427/9864/5404/files/53028421112.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_off00006348.bin
3a200664aade92ed3a5d4a2323cc54d3d38da7c0f0bcf9e2c9757923184fc4b3
pdf-font-stream PDF embedded font (sfnt) at offset 0x6348 5132 bytes
font_01_sfnt_off000074d2.bin
18b244d7de2142993aa8a62dbedce6e38acbe6acf6540818961e36bc90d8547d
pdf-font-stream PDF embedded font (sfnt) at offset 0x74D2 10064 bytes