Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2d0eba14beaac5b…

MALICIOUS

PDF

47.0 KB Created: 2020-08-20 16:42:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0bcb373427a1830da8e84b60cbad7365 SHA-1: 52df35589261db30a0a4b3ae6c79067216496a18 SHA-256: e2d0eba14beaac5b7eb60eb061aa385a286dddf6f564c183e6e1f4c61915414a
152 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The primary malicious URL identified is https://ttraff.cc/pify?keyword=abrahaminte+santhathikal+yarusalem+naayaka+audio+song. The document body and embedded links suggest a lure, possibly for phishing or to download further malicious content. The ML classifier strongly supports the malicious nature of this PDF.

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=abrahaminte+santhathikal+yarusalem+naayaka+audio+song
    • http://tewumiwi.sussexflowinitiative.org/uploads/1/3/1/3/131383726/sexatuwexugateziwisi.pdf
    • http://files.intentionfit.com/uploads/1/3/1/3/131379506/05ae17.pdf
    • http://files.76bulbs.com/uploads/1/3/1/3/131382078/jusolapotikage_tovenuzo_gamexo.pdf
    • https://cdn.shopify.com/s/files/1/0431/9536/7585/files/bakile.pdf
    • https://cdn.shopify.com/s/files/1/0432/9200/0406/files/5713710524.pdf
    • https://cdn.shopify.com/s/files/1/0431/0715/6128/files/powerheart_aed_g3_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/4557/5061/files/lm741_datasheet_fairchild.pdf
    • https://cdn.shopify.com/s/files/1/0428/9013/3663/files/gmail_signature_design_template.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nakoximowukod.pdf
    • https://cdn.shopify.com/s/files/1/0429/7038/2490/files/78097279321.pdf
    • https://cdn.shopify.com/s/files/1/0430/7147/1767/files/facebook_software_now.pdf
    • https://cdn.shopify.com/s/files/1/0434/0721/2694/files/didefusuko.pdf
    • https://cdn.shopify.com/s/files/1/0429/4311/9516/files/kepubewidiwe.pdf
    • https://cdn.shopify.com/s/files/1/0431/1800/2340/files/xubinakex.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a7e.bin
994db2540df9e70f1d42d57dba1bc61354621149e9dc0482d30b191f0abd92e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A7E 5416 bytes
font_01_sfnt_off00006cb0.bin
771c57ed9195071c5ebdcc6f7d359365d1575e3f988ae3f01f5221e72e25da4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CB0 3680 bytes
font_02_sfnt_off00007af4.bin
527e73d7f490d77e1eb7ffa96ce94a730e7c65b268c719a09e80633ef1a33fa8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AF4 10932 bytes
font_03_sfnt_off0000a03a.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA03A 4324 bytes

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