Malicious PDF — malware analysis report

Static analysis result for SHA-256 f00062b0f5fd3373…

MALICIOUS

PDF

44.3 KB Created: 2020-08-19 10:49:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ede55a537107878b293252ba50ac2ac5 SHA-1: 9a6543af4bd509cdc1e257d1d025755afcee278c SHA-256: f00062b0f5fd3373ed3351e783863f2c0be50ae7ecc50ceebdd3f9955d1e4660
152 Risk Score

Malware Insights

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

The PDF contains a prominent link to 'ttraff.com', identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'tv guide listings' and the malicious URL, suggesting a lure. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm designed to obscure the ultimate destination and potentially spread malware or conduct phishing. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=tv+guide+listings+sarasota+comcast
    • http://files.eonmusic.co.uk/uploads/1/3/1/3/131398406/gawawefumivise.pdf
    • http://lexolaba.mummies.com/uploads/1/3/1/4/131438216/819efa3e35f5.pdf
    • https://cdn.shopify.com/s/files/1/0427/6230/5702/files/xolomo.pdf
    • https://cdn.shopify.com/s/files/1/0435/2632/4383/files/mitevafefapoxafulakel.pdf
    • https://cdn.shopify.com/s/files/1/0428/8076/2023/files/37896347488.pdf
    • https://cdn.shopify.com/s/files/1/0449/2325/6999/files/momuzugusunudurapesika.pdf
    • https://cdn.shopify.com/s/files/1/0431/9641/6160/files/nigelefibewibuvakoxiz.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wupukibasabozuxijixosi.pdf
    • https://cdn.shopify.com/s/files/1/0430/6560/6301/files/download_one_piece_ep.pdf
    • https://cdn.shopify.com/s/files/1/0437/3997/1736/files/22273921138.pdf
    • https://cdn.shopify.com/s/files/1/0433/9925/0081/files/42455034231.pdf
    • https://cdn.shopify.com/s/files/1/0435/1947/5866/files/dnd_5e_artificer_revisited_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/0840/1316/files/42215011278.pdf
    • https://cdn.shopify.com/s/files/1/0437/7886/7358/files/50004986858.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062d3.bin
73749fdcd0e5eec7a1524955edb7606007affd85212793684ed68518f3c8e77a
pdf-font-stream PDF embedded font (sfnt) at offset 0x62D3 5152 bytes
font_01_sfnt_off0000743c.bin
c6a9ed8336d92a56ccb27f2204ceea9bc82324b5ee8460ee8fb2d37951a92499
pdf-font-stream PDF embedded font (sfnt) at offset 0x743C 9956 bytes
font_02_sfnt_off00009652.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9652 4324 bytes