Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a76d29acff8cfa7…

MALICIOUS

PDF

48.9 KB Created: 2020-08-26 06:05:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bd9866495dd3fa47dc654b0fa018945c SHA-1: 439691f4c8d9a2b33c5b840d77fab4bd362d6e71 SHA-256: 1a76d29acff8cfa749209b3055835fd99fa961d5e12ee93a1615523093601a06
150 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains text related to 'Driver license mall' and includes the malicious URL, suggesting a social engineering lure. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm used for SEO poisoning or distributing further malicious content. No scripts were extracted, limiting the analysis of direct execution capabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=driver+license+mall+de+las+americas
    • http://files.janetfunnellcounselling.co.uk/uploads/1/3/1/4/131407530/fujuwuzuforati.pdf
    • http://files.simsmiddle.com/uploads/1/3/1/4/131453132/vadonilotixo.pdf
    • http://wixexe.trupbsc.ca/uploads/1/3/1/0/131069869/4468639.pdf
    • http://nefev.mountedup.com/uploads/1/3/1/4/131409090/2616358.pdf
    • http://files.kennelgoldflames.com/uploads/1/3/0/7/130776151/kilofojuz.pdf
    • https://cdn.shopify.com/s/files/1/0430/2602/2557/files/57774310720.pdf
    • https://cdn.shopify.com/s/files/1/0438/9430/9019/files/85876648891.pdf
    • https://cdn.shopify.com/s/files/1/0435/3146/8951/files/mathematical_physics_by_hk_dass_filetype.pdf
    • https://cdn.shopify.com/s/files/1/0430/8028/6372/files/xakigal.pdf
    • https://cdn.shopify.com/s/files/1/0433/0392/7973/files/autocad_export.pdf
    • https://cdn.shopify.com/s/files/1/0433/4705/0661/files/lg_universal_remote_codes.pdf
    • https://cdn.shopify.com/s/files/1/0432/8534/8508/files/96853810858.pdf
    • https://cdn.shopify.com/s/files/1/0431/3756/4839/files/rabonopuxumavezi.pdf
    • https://cdn.shopify.com/s/files/1/0432/7404/3556/files/lal_dupatta_ud_gaya_mp3_song_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0439/8612/4958/files/baseball_jersey_template.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_off000076a2.bin
5af99f4c385a307987748670dd85664cc7391ce3936c4a2b07d1dddd7faf63cd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76A2 5144 bytes
font_01_sfnt_off0000880d.bin
fba612794fadcb97973724859723673cde299a18152a91049df9e25f62c91a8c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x880D 14924 bytes

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