Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a0b45bb48950a4d…

MALICIOUS

PDF

51.9 KB Created: 2020-08-21 10:36:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c676a38aab755984a3803e6de8d6ac99 SHA-1: c05f44544aa99f516c3d4b25073c54e0ebd9dce6 SHA-256: 0a0b45bb48950a4d71f760d47ece7d4681d2c12234eab6247edc72e2db7f1f9b
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, but one critical link redirects to malicious infrastructure at 'ttraff.com'. The document body, though heavily obfuscated, contains the same malicious URL, suggesting an attempt to trick users into clicking it for a fake online form or download. The presence of numerous links and the critical redirector link strongly indicate a phishing or scam attempt.

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.com/pify?keyword=ccs+university+ba+online+form
    • http://files.traveltherapyco.com/uploads/1/3/1/4/131453109/nupetatapa_gavokufofis_padowibe_fakitelidenitig.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0427/6345/2583/files/dokezemuzilejuvitufomuguv.pdf
    • https://cdn.shopify.com/s/files/1/0433/6150/1336/files/riwidefexarekezoz.pdf
    • https://cdn.shopify.com/s/files/1/0437/6110/7096/files/classic_wow_leveling_guide_warlock.pdf
    • https://cdn.shopify.com/s/files/1/0429/1146/5638/files/number_in_english_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/metal_gauge_thickness_chart.pdf
    • https://cdn.shopify.com/s/files/1/0448/9786/1787/files/hindu_girl_name_list_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/6300/8664/files/xunabafagu.pdf
    • https://cdn.shopify.com/s/files/1/0433/5498/0505/files/world_boss_timer_gw2.pdf
    • https://cdn.shopify.com/s/files/1/0431/7852/4832/files/bsc_physics_syllabus_kerala_university.pdf
    • https://cdn.shopify.com/s/files/1/0429/6287/8618/files/29788225797.pdf
    • https://cdn.shopify.com/s/files/1/0427/7259/4844/files/beboxo.pdf
    • https://cdn.shopify.com/s/files/1/0428/7037/4559/files/bowovaxebavaluwumo.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000077aa.bin
aa75a8fe786f635f9cb0e76b2dc7fba1dbe81691dc5f89875e03db65ffab16ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77AA 5232 bytes
font_01_sfnt_off00008963.bin
c40996319642e9ef0740697208761c7dbe55ccc7aa835562c9bb172504962d28		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8963 10524 bytes
font_02_sfnt_off0000ad4e.bin
6e3fbd491d8b71441998836ddca0d0c102716a221ea14f8143929167ad9a79b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAD4E 16164 bytes

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