Malicious PDF — malware analysis report

Static analysis result for SHA-256 7412068d74c81432…

MALICIOUS

PDF

71.2 KB Created: 2020-09-01 01:49:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ac6a49a4eae3708a8e731340a4bbfb5b SHA-1: 31999237dc1ab36a883ac057815479e5832686f7 SHA-256: 7412068d74c814328b1823425476bba862aebe43e465d0e1bddf54599a9001f6
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the same URL and text as the malicious link, suggesting a lure to a phishing or malware distribution site. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, further supporting the malicious intent of directing users to external, potentially harmful, content.

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.ru/wix?keyword=pre+b.+ed+syllabus+2019+pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fedorahosted.org/lohit
    • https://static.usrfiles.com/ugd/f63f29_23e2534bad6849c39af39c785016e264.pdf
    • https://static.usrfiles.com/ugd/3ab5ed_7c44cd0c62a34d569e6d805d23ec6cfb.pdf
    • https://static.usrfiles.com/ugd/8c0e65_662f4a288d5f4af180c59027129b225c.pdf
    • https://static.usrfiles.com/ugd/f515ca_3caa69cd33f049ae88182e2ccd9d5dc5.pdf
    • https://static.usrfiles.com/ugd/b8c837_8992c6c61f6a4a778ae1079b6b64cb02.pdf
    • https://cdn.shopify.com/s/files/1/0435/3110/8504/files/branding_plan_template.pdf
    • https://cdn.shopify.com/s/files/1/0427/5719/3895/files/lecture_analytique_le_pont_mirabeau_apollinaire.pdf
    • https://static.usrfiles.com/ugd/ab922d_518383e459054c41a1559af726cbf71d.pdf
    • https://static.usrfiles.com/ugd/8a419d_66d8769b30f6430596c2da6032f618d7.pdf
    • https://static.usrfiles.com/ugd/50de67_1174fc8893c04222846a86f4da99710f.pdf
    • https://static.usrfiles.com/ugd/b8c837_d444418520d14a84a5d78672c35875bc.pdf
    • https://static.usrfiles.com/ugd/c068f8_1e0dea986d1f46e79052781ae7d8a299.pdf
    • https://static.usrfiles.com/ugd/191a6d_375c02f313fd45e79f3b9962f82dda83.pdf
    • https://static.usrfiles.com/ugd/45fd81_221ee01045ea4f20bd55cf74e4a8d29d.pdf
    • https://static.usrfiles.com/ugd/b8c837_6488a0cfe728435b831603c2fb947484.pdf
    • https://static.usrfiles.com/ugd/b8c837_a21f28d8f01041dbaa3e5affb1b8db98.pdf
    • https://static.usrfiles.com/ugd/158fb9_cd6fa08686fc4775b62705682b04d210.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://www.geocities.com/mitra_anirban/hobbies.htmGNU
    • http://www.gnu.org/copyleft/gpl.htmRegular
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000084c0.bin
4a5e3b80cac466418c7bf4bfdcaa5ad2a8f17f2199a09e19a5e83f833038f2d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84C0 5792 bytes
font_01_sfnt_off00009888.bin
d0c9e33916e9e64e42e31bcf0d345f6c2fcd41735b1a34df0119bd0eb1094281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9888 3720 bytes
font_02_sfnt_off0000a3ec.bin
a84c265eb81f74f18f6e2eacc09c93794f00b7f8bad14fda57f4877b028e0a5f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA3EC 14788 bytes
font_03_sfnt_off0000d1e2.bin
39b2f4b99ee08965fd4836f89f628a00cde8346cb181131bba0308e80db8fb67		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD1E2 16092 bytes
font_04_sfnt_off0000e6e6.bin
25e0959175dcb059eb3bfbac5fddcfde28ddba87875b049f9905961e178c910e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE6E6 12880 bytes

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