Malicious PDF — malware analysis report

Static analysis result for SHA-256 33cc3ae9bed02140…

MALICIOUS

PDF

43.2 KB Created: 2020-08-08 12:58:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6370c2dc6afa8cecd519101a0f2406c7 SHA-1: a2d934417efc1e39f41c139c08e08e484181d775 SHA-256: 33cc3ae9bed02140d5d602a2527fcdc59fedfedfb1051b5c2d94da41482248d3
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 'ttraff.cc'. The document body, though heavily obfuscated, includes the same URL and text related to entrepreneurship, suggesting a lure. The presence of numerous external PDF links, many hosted on shopify.com, indicates a link farm strategy, likely to obscure the ultimate malicious destination. No scripts were extracted from this sample.

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=distinguish+between+entrepreneurship+and+intrapreneurship+pdf
    • http://files.trancityevent.com/uploads/1/3/2/7/132740852/74f73afda49914.pdf
    • http://befanon.acupunctureforwellbeing.com/uploads/1/3/0/7/130738993/kusorixevid.pdf
    • http://files.myintrinsicbeauty.com/uploads/1/3/2/7/132740852/jiramiromob_fepego.pdf
    • https://cdn.shopify.com/s/files/1/0428/6434/5247/files/nirubaxikewijamilusakosan.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81159011373.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/titigabibuzumazavuxi.pdf
    • https://cdn.shopify.com/s/files/1/0431/2409/7175/files/fanafasalujobutujelek.pdf
    • https://cdn.shopify.com/s/files/1/0427/6633/6166/files/bipixaj.pdf
    • https://cdn.shopify.com/s/files/1/0432/3128/1312/files/biophilic_city.pdf
    • https://cdn.shopify.com/s/files/1/0433/7709/8910/files/72000518429.pdf
    • https://cdn.shopify.com/s/files/1/0432/4923/8179/files/15749462900.pdf
    • https://cdn.shopify.com/s/files/1/0428/4389/8019/files/rikenurub.pdf
    • https://cdn.shopify.com/s/files/1/0436/9294/9658/files/briggs_and_stratton_550ex_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/7342/0963/files/66366105539.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_off00006ab9.bin
08b11ebb87a5a358e03c621a4367e29c0407abac57c7d3c8b0718584709b69a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AB9 5504 bytes
font_01_sfnt_off00007d77.bin
0bfdee24c196aab088a3fd774f1a0d2a791ad048fbe8a6678ea1aa227e03ab21		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D77 10036 bytes

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