Malicious PDF — malware analysis report

Static analysis result for SHA-256 29989c659ff70119…

MALICIOUS

PDF

49.2 KB Created: 2020-08-10 03:13:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3bfe4fffe33b852d4aa636d6a20006ba SHA-1: 79320f5e7def516e72fb31a029d082e64d7bd6eb SHA-256: 29989c659ff7011934148bb4e1debc33c6feb95a178aa6f0cf15838b902152d7
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which point to Shopify domains, but one critical link redirects to a known malicious domain, ttraff.cc. This suggests a lure to a malicious site, likely for phishing or malware distribution. The document body itself is heavily obfuscated but contains the URL that triggered the malicious redirector heuristic. 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=sensory+integration+approach+pdf
    • http://files.pbcohe.com/uploads/1/3/1/8/131856105/boxusib-fekibu-muxojoje-xuzesazarat.pdf
    • http://files.ourcluster.org/uploads/1/3/2/8/132814030/paseximizamima_libin_gexefitapuwoz.pdf
    • http://files.accountinglyceum.com/uploads/1/3/0/8/130813364/dc243cc84a325f.pdf
    • http://files.summoningstone.janaoliver.com/uploads/1/3/1/6/131606331/7213656.pdf
    • https://cdn.shopify.com/s/files/1/0429/6402/5493/files/bedasame.pdf
    • https://cdn.shopify.com/s/files/1/0432/8243/2160/files/calculus_early_transcendentals_briggs.pdf
    • https://cdn.shopify.com/s/files/1/0437/5665/0645/files/fitafofoboleruxaxozamemu.pdf
    • https://cdn.shopify.com/s/files/1/0430/0147/9321/files/lixukafare.pdf
    • https://cdn.shopify.com/s/files/1/0428/6133/0591/files/27221609139.pdf
    • https://cdn.shopify.com/s/files/1/0428/1332/5471/files/74314632378.pdf
    • https://cdn.shopify.com/s/files/1/0429/5458/8316/files/5892389934.pdf
    • https://cdn.shopify.com/s/files/1/0430/7222/5442/files/nerasudelemudijuloxejanuv.pdf
    • https://cdn.shopify.com/s/files/1/0427/5906/1670/files/anteproyecto_codigo_procesal_civil_y_comercial_santa_fe.pdf
    • https://cdn.shopify.com/s/files/1/0433/3250/1656/files/govunevamavapezi.pdf
    • https://cdn.shopify.com/s/files/1/0433/8899/3703/files/bosch_brake_pads.pdf
    • https://cdn.shopify.com/s/files/1/0435/5702/8001/files/bticino_living_light_catalogue.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_off00008074.bin
d41720ed276e2a8a5b09b52ea0c3f4aead1ebac4afa61177e216690c2cb162d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8074 5592 bytes
font_01_sfnt_off0000937b.bin
5138f935dd60a0a9cc6dbd5835e285e4a04e0a9ab68978dda37a16c25086f3fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x937B 10644 bytes

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