Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ce312d73950df29…

MALICIOUS

PDF

86.4 KB Created: 2021-04-04 15:43:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e1fc66c6c943abf419d7995ea049a99a SHA-1: 6b6312b9560c806770f9f33d1a7bae69a8331dd5 SHA-256: 3ce312d73950df293f019230c1a378e634a272fca902894289ccc9652c60ad69
156 Risk Score

Malware Insights

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

This PDF document contains numerous external links, characteristic of a link farm or phishing lure. The embedded content suggests it is designed to mimic search results, directing users to a malicious URL for further exploitation. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate malicious intent, likely involving redirection to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://resalured.ru/wix?keyword=summoners+war+loren+runes+reddit
    • https://goxatuzibifonev.weebly.com/uploads/1/3/0/7/130739188/e19b70dd00ea.pdf
    • https://fasitidepev.weebly.com/uploads/1/3/4/3/134312072/mojivarexire.pdf
    • https://gasatuba.weebly.com/uploads/1/3/4/5/134596028/worumofe.pdf
    • https://daluruxixofofi.weebly.com/uploads/1/3/1/3/131398394/57d03204823ae7.pdf
    • https://cdn-cms.f-static.net/uploads/4404524/normal_60323e538dbd2.pdf
    • https://cdn-cms.f-static.net/uploads/4448985/normal_6009cfdcf1eaa.pdf
    • https://boxemafal.weebly.com/uploads/1/3/3/9/133997404/3086483.pdf
    • https://zabidikigez.weebly.com/uploads/1/3/4/5/134594795/dovunuriworokajin.pdf
    • https://ludalobupum.weebly.com/uploads/1/3/4/5/134528654/f2018fee.pdf
    • https://jubukukovojiri.weebly.com/uploads/1/3/5/3/135306868/vuvazuxagupiselobad.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/zeworibuzoza/introduction_to_law_for_paralegals_5th_edition_free_download.pdf
    • https://s3.amazonaws.com/bubeto/gasapoworarujarorax.pdf
    • https://s3.amazonaws.com/lulelepese/mejiv.pdf
    • https://s3.amazonaws.com/zodererezuzuxi/when_to_use_negative_binomial_regression.pdf
    • https://s3.amazonaws.com/tojazudibumogab/food_safety_definition.pdf
    • https://s3.amazonaws.com/tirimofufemukat/pufovaviwilubemefike.pdf
    • https://uploads.strikinglycdn.com/files/ec78d72e-b6ea-4efb-a4c7-e1632af0147d/8444812781.pdf
    • https://uploads.strikinglycdn.com/files/f88e8b51-4752-494d-9f22-f22fe0e94c6d/how_to_start_a_yoga_routine_at_home.pdf
    • https://uploads.strikinglycdn.com/files/ec570a4d-9d1a-4eed-aa38-45ec7c56bd54/53121486684.pdf
    • https://s3.amazonaws.com/voxazedisula/lukuviwoxutu.pdf
    • https://uploads.strikinglycdn.com/files/583c6439-f9cf-48a2-b1ea-c47b0d8c764e/will_usmle_step_1_become_pass_fail.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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fb8c.bin
963abb279e54ef75dd114ed41d1f0c38dec33bce40f84591f93ba61759661bbe
pdf-font-stream PDF embedded font (sfnt) at offset 0xFB8C 5164 bytes
font_01_sfnt_off00010d0a.bin
9e02e4f064c655d60cc07c44a554e83b8062f86f22561d24cf01ab54be0b5eb0
pdf-font-stream PDF embedded font (sfnt) at offset 0x10D0A 11960 bytes
font_02_sfnt_off000134ee.bin
dbe1f6873dfbc63a557840fa26764ed1e24daf10180a919a5f50e881975b6f06
pdf-font-stream PDF embedded font (sfnt) at offset 0x134EE 16148 bytes