Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff7ddcd6f01575cd…

MALICIOUS

PDF

40.6 KB Created: 2020-08-23 15:10:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 68c8280decc6f45eada2d5e57b07396f SHA-1: 9dbe3f1e34ee2d216af5f9d6bb0e51b9997526cb SHA-256: ff7ddcd6f01575cdb55a34cb67a3c16ab28092dc9a2a0c50a1473f17fc60b81a
120 Risk Score

Malware Insights

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

The PDF document contains a link farm pointing to numerous external PDF files, with the primary redirector URL being 'https://ttraff.cc/pify?keyword=dragon+city+elements+guide'. This indicates a social engineering attempt to lure users to malicious content. The document body, though heavily obfuscated, also contains references to this redirector and other benign-looking PDF links hosted on Shopify. The presence of a malicious redirector and a link farm strongly suggests an attack pattern focused on driving traffic to potentially harmful sites.

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=dragon+city+elements+guide
    • http://files.jeddahstearoom.com/uploads/1/3/1/3/131380754/jivosasizodik.pdf
    • http://jomiwo.tomsbeachhouserentals.com/uploads/1/3/2/6/132681579/fubudugaz_vuwemup_livomonerun_xovukuvizebej.pdf
    • http://files.ryesnextchapter.com/uploads/1/3/0/7/130776264/pufinaluloze.pdf
    • http://files.oxfordponyclub.com/uploads/1/3/0/8/130813701/7389492.pdf
    • https://cdn.shopify.com/s/files/1/0439/4736/0424/files/minecraft_v_0._14_0.pdf
    • https://cdn.shopify.com/s/files/1/0428/3056/1436/files/14268134891.pdf
    • https://cdn.shopify.com/s/files/1/0434/7677/9174/files/joxugew.pdf
    • https://cdn.shopify.com/s/files/1/0458/6579/5737/files/aws_cloudformation_get_s3_bucket_name.pdf
    • https://cdn.shopify.com/s/files/1/0433/2955/2552/files/84806829576.pdf
    • https://cdn.shopify.com/s/files/1/0434/6036/2392/files/tuzejojaf.pdf
    • https://cdn.shopify.com/s/files/1/0432/6414/7609/files/a_level_physics_pdf_notes.pdf
    • https://cdn.shopify.com/s/files/1/0428/2191/0687/files/cash_drawer_balance_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0430/2385/9873/files/97971301923.pdf
    • https://cdn.shopify.com/s/files/1/0443/8809/0022/files/dexirof.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_off000060a3.bin
d31b58b998c8fe3188f3aa6ef0ce83ddaefcf33a2afcb6b258ef72158a3ba140		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60A3 5360 bytes
font_01_sfnt_off000072c3.bin
0f3831370aa3d6f1bf669f603e14593cde80d3eece3334a2c1da7c7d29086259		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72C3 10224 bytes

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