Malicious PDF — malware analysis report

Static analysis result for SHA-256 b886e7f48e4be206…

MALICIOUS

PDF

62.8 KB Created: 2020-08-19 06:29:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 01bf6d792336ded1be0066de9feecd49 SHA-1: bf8641b27de2c1eb111773ac92a47190e928d2d9 SHA-256: b886e7f48e4be206b65a441cdb9ba967acaf275cf6196e2fa320b69fc0f98eca
130 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a download button, which leads to a PDF file hosted on Shopify. The document body is heavily obfuscated but contains the primary redirect URL. The presence of a link farm and a redirector indicates a phishing or scam attempt.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=bootstrap+4+admin+template+angular+7
    • http://files.directadhesives.com/uploads/1/3/0/7/130775870/2439904.pdf
    • http://gamiv.renattaazzam.com/uploads/1/3/1/4/131406387/sasasovuti-liduw-regunufijanol.pdf
    • http://laxota.hisohangers.com/uploads/1/3/2/6/132695471/xakisife-vafiwukub.pdf
    • http://gagajobe.jinhui-mechanics.com/uploads/1/3/1/6/131636817/7971979.pdf
    • https://cdn.shopify.com/s/files/1/0430/7176/6690/files/toxosofiguzodo.pdf
    • https://cdn.shopify.com/s/files/1/0436/1001/3853/files/autodesk_vault_server_2019.pdf
    • https://cdn.shopify.com/s/files/1/0440/4215/8245/files/81893720677.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vuvitew.pdf
    • https://cdn.shopify.com/s/files/1/0437/6068/1111/files/52307080416.pdf
    • https://cdn.shopify.com/s/files/1/0429/6255/0940/files/15236843756.pdf
    • https://cdn.shopify.com/s/files/1/0434/7835/2034/files/jemedivijikupasul.pdf
    • https://cdn.shopify.com/s/files/1/0435/8530/6782/files/zufokiwotovorevi.pdf
    • https://cdn.shopify.com/s/files/1/0432/9524/4441/files/alimentos_ricos_en_zinc.pdf
    • https://cdn.shopify.com/s/files/1/0436/3033/0019/files/xofotesufesovapib.pdf
    • https://cdn.shopify.com/s/files/1/0430/7845/1351/files/78829289986.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000838f.bin
3d4760ca295192c89086870ebbac49c5a5945404ea6ab57fca452cf2db5f569a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x838F 6440 bytes
font_01_sfnt_off00009383.bin
cbe51a37d30c88a545964eb7dfd32be4a3c7a0fcb089fbc96b4fffd2189ed84d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9383 5496 bytes
font_02_sfnt_off0000a623.bin
9f77a327a94a2440d2f87187da71be9308454e2bce3f62256fd07910d90b17f5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA623 2788 bytes
font_03_sfnt_off0000b1fd.bin
0922d876f548295479a63ccba47865f569bd960d9dc553967191091c88e63c67		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB1FD 10964 bytes
font_04_sfnt_off0000d7bb.bin
0216150ac0e5ade23b072752459620ec704bdac01526bfbadd96d51f96873ef3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD7BB 16168 bytes

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