Malicious PDF — malware analysis report

Static analysis result for SHA-256 0be3798aab000410…

MALICIOUS

PDF

64.8 KB Created: 2020-10-14 23:35:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: d1eea6f205e706c49dd83258748a3295 SHA-1: 364061848e54fb7f57d4b1cea7b5436cc70ad8c1 SHA-256: 0be3798aab0004107d1228b0dbd12f61a522ffd8b6286a16dfae5d944a84f088
154 Risk Score

Malware Insights

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

The PDF contains embedded URLs, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector, suggesting an attempt to lead the user to a potentially harmful site. The presence of numerous other PDF links, many pointing to benign Shopify domains, indicates a link farm strategy, possibly to obscure the malicious destination.

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://ggtraff.ru/123?keyword=compr%25C3%25A9hension+%25C3%25A9crite+fran%25C3%25A7ais+b2+pdf In PDF document text
    • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/d1ee3c84.pdfIn PDF document text
    • https://jawowigo.weebly.com/uploads/1/3/0/7/130774982/vokelunewej_wedezeregen_lejofe.pdfIn PDF document text
    • https://site-1043297.mozfiles.com/files/1043297/zilatizusanumiwi.pdfIn PDF document text
    • https://site-1043371.mozfiles.com/files/1043371/5746825083.pdfIn PDF document text
    • https://site-1040238.mozfiles.com/files/1040238/48721646394.pdfIn PDF document text
    • https://site-1036667.mozfiles.com/files/1036667/kififaloxani.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366367/normal_5f87146dcd62c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366337/normal_5f875a8281aeb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365635/normal_5f870cd356038.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366033/normal_5f86f93d6f527.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365540/normal_5f872c9173c4a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/5740/9948/files/83917094425.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2352/2216/files/alonzo_hamburger_jones_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1854/2504/files/digimon_season_4_opening.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/0987/0493/files/zavix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0082/2934/files/88713715708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1945/2072/files/nesebepa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4cf86f9-b555-45b5-b125-4d4523694dab/74399895764.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33ce65ff-901c-42cf-b0f4-3059e199a553/xivazagidasabexorexipa.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a378.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA378 5864 bytes
SHA-256: c2cabfb5bc7d5d5045ffc98f38c271f4d6e5fc49339da1cb4c363934f5c0b221
font_01_sfnt_off0000b6a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6A5 12536 bytes
SHA-256: f456638e5d0b2a39e8bf3f782aa3f2c6d95125009437595160501aeefe2e4f7e
font_02_sfnt_off0000de33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE33 16096 bytes
SHA-256: 61761e6c71fdd980502ce8a3a8cbf9590216241eb9eabe72fdf309a1c23cd3c2

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