Malicious PDF — malware analysis report

Static analysis result for SHA-256 14f05677be224c93…

MALICIOUS

PDF

51.4 KB Created: 2020-08-24 01:57:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3e248100603d317c921cd1267f7985e5 SHA-1: 72bde306786cc2009221b94ec80a6866a59f65de SHA-256: 14f05677be224c93057d075bdc2c1a981dadddcafe9a4748cad874fd1ad9e2a9
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for linking to known malicious redirector infrastructure, specifically the URL https://ttraff.cc/pify?keyword=bfuhs+supply+date+sheet. It also exhibits characteristics of a PDF link farm, with numerous external links, many pointing to Shopify-hosted PDFs. The document body, though heavily obfuscated, contains references to the malicious URL and other Shopify links, suggesting an attempt to lure users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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=bfuhs+supply+date+sheet
    • http://bedetes.westport.votersguide.info/uploads/1/3/1/3/131398091/29c0653a30.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fedorahosted.org/lohit
    • https://cdn.shopify.com/s/files/1/0430/3893/3146/files/35446568680.pdf
    • https://cdn.shopify.com/s/files/1/0433/3004/4062/files/vadasowoxakikiwomipe.pdf
    • https://cdn.shopify.com/s/files/1/0429/5468/6617/files/85560297279.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/widizosatadusuzovasovodas.pdf
    • https://cdn.shopify.com/s/files/1/0435/5496/3617/files/spreadsheet_icon_in_sap.pdf
    • https://cdn.shopify.com/s/files/1/0430/9997/9930/files/causas_de_vejiga_neurogenica.pdf
    • https://cdn.shopify.com/s/files/1/0429/1071/1971/files/2846293980.pdf
    • https://cdn.shopify.com/s/files/1/0430/9067/3813/files/57264305871.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

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005792.bin
f49c71f92645ab3a1f00935bc073821d5507362caa4efe70e2da301795953be7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5792 5184 bytes
font_01_sfnt_off0000693f.bin
b91f3c26f37c28538ed09035cbea6f9221827f1e30b50c452f08cc820bcc167b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x693F 3720 bytes
font_02_sfnt_off000074a1.bin
303fe62a0b1fce0dc677483a9b1d47337cf53042f14c9732a80a6a0c7a395b81		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74A1 7564 bytes
font_03_sfnt_off00008da6.bin
9ad66e214c146e9df704ed441b8aabb788d75eee6fdcbfc4901777c751cd772a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8DA6 9756 bytes
font_04_sfnt_off0000af65.bin
e9febcfbd698aa0b9d1cf025d334058a8361ea82b90337fb2f630fb52ba43cc0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAF65 4520 bytes

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