Malicious PDF — malware analysis report

Static analysis result for SHA-256 00f2a63d619bb5ef…

MALICIOUS

PDF

65.6 KB Created: 2020-08-28 16:16:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e7d12b36a0470e8e4675ef56e1b9a2ea SHA-1: 9174bb63deb056f95a4f50bdd94eefb1f87aa058 SHA-256: 00f2a63d619bb5ef0261b0f9425e041837f263eb6187e24b9bbbda0dcede1119
162 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. This is further supported by a PDF link farm heuristic, indicating a large number of outbound links, and a 'download button' heuristic suggesting a lure. The embedded URL 'https://ttraff.cc/pify?keyword=pandora%2527+s+box+3+questions+free' is the primary IOC, likely leading to a malicious payload or phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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
  • 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=pandora%2527+s+box+3+questions+free
    • http://files.bethdoriani.com/uploads/1/3/1/0/131071114/rulajeliwawil-vakuk-duneb.pdf
    • http://tezef.returntokaya.com/uploads/1/3/1/0/131070718/sulijapajit.pdf
    • http://wisunak.feteandfolly.com/uploads/1/3/1/1/131164250/9714584.pdf
    • http://files.customartsstudio.com/uploads/1/3/2/6/132695651/2661995.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0438/3893/1109/files/14093907063.pdf
    • https://cdn.shopify.com/s/files/1/0438/3539/2150/files/autocad_converter_software_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/6271/2728/files/37493675688.pdf
    • https://cdn.shopify.com/s/files/1/0427/9622/0572/files/16791454735.pdf
    • https://cdn.shopify.com/s/files/1/0437/3010/8581/files/electrical_panel_schedule_template_word.pdf
    • https://cdn.shopify.com/s/files/1/0430/1701/1353/files/gafibotelenorigepesiko.pdf
    • https://cdn.shopify.com/s/files/1/0434/3549/1490/files/vusaki.pdf
    • https://cdn.shopify.com/s/files/1/0429/6641/7567/files/rabolo.pdf
    • https://cdn.shopify.com/s/files/1/0436/9140/9561/files/teddy_pendergrass_torrents.pdf
    • https://cdn.shopify.com/s/files/1/0435/9041/8591/files/nabadomudom.pdf
    • https://cdn.shopify.com/s/files/1/0428/5032/0540/files/39877047486.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c304.bin
866ba262d1a337ff7a41d213506d806b8a84062686218cc64800ad98759224bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC304 5404 bytes
font_01_sfnt_off0000d56e.bin
030732876debbe9e74e4412beadd1facae22688744a7f33fbb463092f9c544d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD56E 10460 bytes

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