Malicious PDF — malware analysis report

Static analysis result for SHA-256 c317acd2a4ce5e15…

MALICIOUS

PDF

48.7 KB Created: 2020-07-30 04:00:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3a91cede7e0da19b83a8bc8279f046b9 SHA-1: 93b9315130c776c5fbae636b30b4dcc605542ad7 SHA-256: c317acd2a4ce5e152a4e5ca058a88402fc270cc6f2c72f3ec79879c8e2ca69e8
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains numerous links, with one pointing to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, suggests a lure related to a 'periodic table'. The presence of a link farm and a malicious redirector indicates an attempt to drive traffic to potentially harmful sites, likely for phishing or malware delivery.

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=periodic+table+with+charges+and+electron+configuration+pdf
    • http://files.projectcaleb.org/uploads/1/3/0/8/130873718/1711342.pdf
    • http://files.teamaudioeye.com/uploads/1/3/1/4/131406563/katujijuxo.pdf
    • http://files.maryscomix.com/uploads/1/3/2/6/132696030/nivuvilewon-dopub-jovudominiloge-tejojusigiw.pdf
    • https://cdn.shopify.com/s/files/1/0434/7622/2114/files/52399878722.pdf
    • https://cdn.shopify.com/s/files/1/0433/7729/5516/files/23617560753.pdf
    • https://cdn.shopify.com/s/files/1/0437/8640/4000/files/91245066876.pdf
    • https://cdn.shopify.com/s/files/1/0432/8888/7460/files/28711881718.pdf
    • https://cdn.shopify.com/s/files/1/0428/4196/4710/files/fumafeloj.pdf
    • https://cdn.shopify.com/s/files/1/0432/9432/6944/files/40436256920.pdf
    • https://cdn.shopify.com/s/files/1/0435/7967/0689/files/migisaxi.pdf
    • https://cdn.shopify.com/s/files/1/0431/9494/1603/files/birorukilejeganexoz.pdf
    • https://cdn.shopify.com/s/files/1/0433/3142/0314/files/12091537939.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_off00007805.bin
737899af181af52a743c336501acfeb43ab529a1bbf0dd19222164777bde267f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7805 5532 bytes
font_01_sfnt_off00008acf.bin
a05257e8c83e02abcfd5361dce180fa74e2b6c4bc8e7b08770f2911d12db80a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8ACF 13396 bytes

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