Malicious PDF — malware analysis report

Static analysis result for SHA-256 0114a01246573532…

MALICIOUS

PDF

43.2 KB Created: 2020-09-05 09:43:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ff51a41bb5dce69cc7a4c645c073e5a0 SHA-1: be8f1acb3c10e4cb46a26abad288f173842d557f SHA-256: 0114a012465735328a5a9fd2d52ad3aa2eb60aeb605379caa740b708fb86ec4b
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.club/wix?keyword=my+beloved+charioteer+summary+pdf'. This indicates the document's primary purpose is to lure the user to a potentially harmful external site. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, and the document body was heavily obfuscated, but the presence of the malicious URL is sufficient evidence for this assessment.

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.club/wix?keyword=my+beloved+charioteer+summary+pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://static.usrfiles.com/ugd/b41a9a_5395a80799084a39845343ebdec3679f.pdf
    • https://static.usrfiles.com/ugd/2b98a3_5063cf599e544c88bc31ef500eb20c87.pdf
    • https://static.usrfiles.com/ugd/a4e402_71744b437087416892c296fbcb6d3f2d.pdf
    • https://cdn.shopify.com/s/files/1/0433/7690/2309/files/30581328105.pdf
    • https://cdn.shopify.com/s/files/1/0432/1335/7211/files/brs_behavioral_science_7th.pdf
    • https://cdn.shopify.com/s/files/1/0432/5238/3904/files/sufinuwutepevewenek.pdf
    • https://cdn.shopify.com/s/files/1/0431/3517/2770/files/92110756218.pdf
    • https://cdn.shopify.com/s/files/1/0430/9280/3744/files/arithmetic_progression_class_10_ssc.pdf
    • https://cdn.shopify.com/s/files/1/0433/9495/7466/files/spreadsheet_for_wedding_budget_planner.pdf
    • https://cdn.shopify.com/s/files/1/0447/2212/7004/files/barriers_of_interpersonal_communication.pdf
    • https://cdn.shopify.com/s/files/1/0433/5091/7269/files/97245543830.pdf
    • https://cdn.shopify.com/s/files/1/0441/3099/2280/files/form_80_immigration_australia.pdf
    • https://cdn.shopify.com/s/files/1/0440/9946/9464/files/15928739332.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005da5.bin
763c2d2378843e08bd1fd9124be4e588e012fac26437fef7d933f9a907d6bde5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DA5 5476 bytes
font_01_sfnt_off00007053.bin
21a3428a9ae128b19f185d68f095338dae425cd6921051463a4d991a2bf5c7ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7053 9904 bytes
font_02_sfnt_off00009217.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9217 4324 bytes

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