Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5ab86dd508d0479…

MALICIOUS

PDF

42.6 KB Created: 2020-07-28 09:09:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d85674eaecc573a3e410783b26ed20cb SHA-1: d0530447d099e69c954fa34e9418b5809eeb19f4 SHA-256: f5ab86dd508d0479c6863696340f11e86d75953ec4c446fba98ebe97a2e54bc8
152 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for malicious redirector links, pointing to 'ttraff.cc'. Additionally, it exhibits a PDF link farm heuristic, with numerous external links, many hosted on Shopify. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of multiple malicious and SEO-focused links indicates a likely attempt to drive traffic to potentially harmful sites or engage in link manipulation.

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.cc/pify?keyword=bandeya+female+song++mr+jatt
    • http://files.vistrixcreative.com/uploads/1/3/2/7/132740586/4d9a732b1841e.pdf
    • http://files.groundgrippersdancecompany.com/uploads/1/3/1/3/131381607/853250d23ecdcf8.pdf
    • http://files.sanantoniohardwoodfloors.com/uploads/1/3/0/7/130776745/nexivozosojuxiwilag.pdf
    • https://cdn.shopify.com/s/files/1/0430/1769/9477/files/4976379337.pdf
    • https://cdn.shopify.com/s/files/1/0430/1671/6437/files/27411367251.pdf
    • https://cdn.shopify.com/s/files/1/0428/9898/1030/files/jimej.pdf
    • https://cdn.shopify.com/s/files/1/0432/1571/6513/files/23908288934.pdf
    • https://cdn.shopify.com/s/files/1/0432/3131/4077/files/wovuzogowigujirekipir.pdf
    • https://cdn.shopify.com/s/files/1/0430/5040/1943/files/logibupufo.pdf
    • https://cdn.shopify.com/s/files/1/0431/6643/3435/files/54482702941.pdf
    • https://cdn.shopify.com/s/files/1/0429/5717/6986/files/45553090025.pdf
    • https://cdn.shopify.com/s/files/1/0434/8225/1421/files/piwafiduwuv.pdf
    • https://cdn.shopify.com/s/files/1/0432/0083/9837/files/mowugomepepilawubugarixa.pdf
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/wopamidazolizo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0595/9574/files/kavirelezosaki.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kovogosiwe.pdf
    • https://cdn.shopify.com/s/files/1/0431/5506/2938/files/lezoxamurisozatetitatoroj.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/
    • https://cdn.shopify.com/s/files/1/0432/3131/4077/files/wovuzog

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e2f.bin
63ce7eb6f3b9038e8d0218ac616ac1cc0b170fb6690e0706c95ec0d96d130844		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E2F 5192 bytes
font_01_sfnt_off00006fd5.bin
9b14cb5936e1e9292876950a6eaebd957e28b8d2a7bc10159f1259c9b416383a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD5 2416 bytes
font_02_sfnt_off00007a48.bin
bf2a65722e3ab34dd41b2d06a92a60ad8e20ad1250be13d45d1d1e6fe6403d05		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A48 10096 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.