Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc60ebb35a30f878…

MALICIOUS

PDF

45.6 KB Created: 2020-08-22 07:30:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62cc2afafc206580a5b59c0d40fc16af SHA-1: 2eb1028d4083f2ad5f7f9821f6a096852085b3cf SHA-256: bc60ebb35a30f8788092f264584d9a618949a9533ddbcd7ad510ef4d4cc2acc5
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'Courier post tracking number format' and the malicious URL itself. This suggests a phishing lure designed to trick users into clicking the link, which then redirects to malicious infrastructure.

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=courier+post+tracking+number+format
    • http://files.tidewatertrailanimal.com/uploads/1/3/1/4/131406507/wuzifukig-rurefipim-puwaxajezunobe.pdf
    • http://files.laurarichardsphotography.com/uploads/1/3/0/7/130776388/wizepabafis-fizelopixagoduv.pdf
    • http://vimapimu.birdandbloomevents.com/uploads/1/3/0/7/130775850/3570481.pdf
    • http://files.delcohalloffame.org/uploads/1/3/0/9/130969600/kemavafit-senumajoxijuwu.pdf
    • https://cdn.shopify.com/s/files/1/0427/3537/0407/files/doniw.pdf
    • https://cdn.shopify.com/s/files/1/0433/3063/3881/files/ponuwukizulabemozome.pdf
    • https://cdn.shopify.com/s/files/1/0434/8484/0089/files/49888461089.pdf
    • https://cdn.shopify.com/s/files/1/0429/6835/0873/files/97166501144.pdf
    • https://cdn.shopify.com/s/files/1/0427/9464/7719/files/95805929747.pdf
    • https://cdn.shopify.com/s/files/1/0432/8318/5832/files/15303705382.pdf
    • https://cdn.shopify.com/s/files/1/0435/2029/5064/files/11029465142.pdf
    • https://cdn.shopify.com/s/files/1/0428/1332/5471/files/64662705821.pdf
    • https://cdn.shopify.com/s/files/1/0436/4189/7110/files/2004_honda_accord_owners_manual_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/munununexarusod.pdf
    • https://cdn.shopify.com/s/files/1/0429/5147/5351/files/rovaxinunemudeb.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_off00007437.bin
22d2c4fb7f0af80f9f264fa55f96dc6d27b78b723edd1f0acf4b62f465a86b9d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7437 5412 bytes
font_01_sfnt_off0000868f.bin
ad424bce5349fb80b273717e4e5ea29ff2e972005da1a3c0612a501e757305f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x868F 10144 bytes

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