Malicious PDF — malware analysis report

Static analysis result for SHA-256 06b2523327b60382…

MALICIOUS

PDF

46.7 KB Created: 2020-08-05 13:39:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 150b579a92be481c1683bc62be44dbc4 SHA-1: 8fde1b4a34e268771c30969b53f0f994090af0bd SHA-256: 06b2523327b60382068f04b80e0ebeb33e573a444a444066d73d3d4676955f8d
162 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link that is designed to lure users into clicking it, likely as part of a phishing or scam campaign. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and the presence of numerous external PDF links, as indicated by PDF_SEO_LINK_FARM, strongly suggest a malicious intent to redirect users to harmful content. The ML classifier also flagged this PDF with high confidence.

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=morphology+the+words+of+language+pdf
    • http://files.ctefaculty.com/uploads/1/3/0/7/130776508/guneturetoloxet.pdf
    • http://files.cassiemseinuk.com/uploads/1/3/0/7/130775366/nelike-kufeboge-rafalus.pdf
    • http://files.laperspectivestudio.com/uploads/1/3/1/0/131069764/sazake-kososavirenax.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0440/0339/3694/files/54454006539.pdf
    • https://cdn.shopify.com/s/files/1/0433/4885/2904/files/intex_pool_pump_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/0264/2075/files/jipapali.pdf
    • https://cdn.shopify.com/s/files/1/0428/4838/7239/files/kilovokikemijajuzasukis.pdf
    • https://cdn.shopify.com/s/files/1/0434/1304/5398/files/lone_wolf_adventure_game_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/1359/4526/files/81531367449.pdf
    • https://cdn.shopify.com/s/files/1/0437/1087/3765/files/gebarufavabivugewona.pdf
    • https://cdn.shopify.com/s/files/1/0434/0505/0008/files/periappendicular_infiltrate.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81274949660.pdf
    • https://cdn.shopify.com/s/files/1/0440/8334/7606/files/fibras_textiles.pdf
    • https://cdn.shopify.com/s/files/1/0437/0271/4533/files/76750696717.pdf
    • https://cdn.shopify.com/s/files/1/0433/9377/7827/files/45396587582.pdf
    • https://cdn.shopify.com/s/files/1/0430/6622/8898/files/jezete.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_off00006856.bin
5ab39addcbc331440fb3697b1a237ff20aabaad26b4284ea47a13ec465245f11		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6856 5336 bytes
font_01_sfnt_off00007a96.bin
4be4803cc532d975b26a60cf2df1ff8ade5e7aa044aaa6fd4ebcce001698a584		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A96 10800 bytes
font_02_sfnt_off00009f1b.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F1B 4324 bytes

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