Malicious PDF — malware analysis report

Static analysis result for SHA-256 8bd368a8aa9def7c…

MALICIOUS

PDF

82.0 KB Created: 2020-07-23 07:37:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8445fd60f584fa55c75d76bd6723faf8 SHA-1: 731e048b1b3a468d2a98b7c97fb281e5e3b7370d SHA-256: 8bd368a8aa9def7c9ded108d8fbdf1b8c6ac0e14b60ebceeaf2e5d0c9b5d0502
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=conduction+convection+and+radiation+pdf'. This indicates the document's primary purpose is to lure the user to a malicious site. Additionally, a PDF link farm heuristic was triggered, suggesting a broader campaign to distribute malicious content. No scripts were extracted, and the document body was heavily truncated and unreadable.

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=conduction+convection+and+radiation+pdf
    • http://files.ioliteraryjournal.com/uploads/1/3/0/9/130969480/3765d30e211f.pdf
    • http://files.misfitangelsrescue.org/uploads/1/3/0/9/130969686/3319307.pdf
    • http://files.cielogiftbaskets.com/uploads/1/3/1/3/131384432/xebugudutije_xoxojufowit_tojopeber.pdf
    • http://files.edmondpiano.co.uk/uploads/1/3/0/7/130739142/928e9c2f0c44bc.pdf
    • http://files.artbymadisonbradley.com/uploads/1/3/1/4/131453100/8203922.pdf
    • https://cdn.shopify.com/s/files/1/0437/8545/3728/files/17556378910.pdf
    • https://cdn.shopify.com/s/files/1/0438/8388/8808/files/16341444031.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lojuxefututa.pdf
    • https://cdn.shopify.com/s/files/1/0430/9303/3111/files/rokukorigaxodamituzaw.pdf
    • https://litowelixi.files.wordpress.com/2020/07/55893942013.pdf
    • https://retolipe116851667.files.wordpress.com/2020/06/52678767380.pdf
    • https://jufolako.files.wordpress.com/2020/07/dawolegerubaw.pdf
    • https://cdn.shopify.com/s/files/1/0431/0394/4853/files/87216290018.pdf
    • https://cdn.shopify.com/s/files/1/0427/8140/9436/files/40876443440.pdf
    • https://cdn.shopify.com/s/files/1/0430/4538/8442/files/luguboguluzeximoz.pdf
    • https://cdn.shopify.com/s/files/1/0432/8328/4136/files/mavunebaviwokavamijiwonat.pdf
    • https://cdn.shopify.com/s/files/1/0429/9977/5381/files/9178160975.pdf
    • https://cdn.shopify.com/s/files/1/0437/9059/8305/files/zeliwofonubisavisujodas.pdf
    • https://cdn.shopify.com/s/files/1/0433/5799/5160/files/47524264549.pdf
    • https://cdn.shopify.com/s/files/1/0433/5586/5242/files/44054276357.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ebee.bin
af6ede0c8972caa0c09f653267c5267facb39ed34cdbc07832e77f1885c9840e
pdf-font-stream PDF embedded font (sfnt) at offset 0xEBEE 4904 bytes
font_01_sfnt_off0000fcb1.bin
f5443b7fdd5da4b5bd2bc41d7c7bd6fc4e0084a24d1af7be01eceec3dea8f364
pdf-font-stream PDF embedded font (sfnt) at offset 0xFCB1 11636 bytes
font_02_sfnt_off000124ba.bin
ae97ebdbf5cb6679ee3ae7f6f8963da9ec2437ada1f672a33085bc8cbe806833
pdf-font-stream PDF embedded font (sfnt) at offset 0x124BA 16060 bytes