Malicious PDF — malware analysis report

Static analysis result for SHA-256 56604d6e4da3c5e3…

MALICIOUS

PDF

87.5 KB Created: 2021-03-30 15:41:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e1e30110991169bfb79ab1f33abfeee0 SHA-1: 9f931d83a308c15d9e6f9b4dfa33574f5d1ef425 SHA-256: 56604d6e4da3c5e3c6f78e9632accf9a97b8a618932db767db1687a558c5ab37
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also flagged this PDF as malicious with high confidence. The document body, though heavily obfuscated, contains text that appears to be a lure related to "Percy Jackson book 1 wiki", suggesting a phishing or social engineering attempt to drive users to the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://nipisod.ru/strik?utm_term=percy+jackson+book+1+wiki
    • http://helpcenter.business/122128841063xkvb.pdf
    • http://remont-kholodilnikov.website/mathematics_maths_dictionary_a_to_z_with_meanings3gbwi.pdf
    • http://xilofomodat.iblogger.org/pobolabuvajunarevozib.pdf
    • http://changepass.online/ukulele_strumming_patterns_4_4d4fg6.pdf
    • http://center-about.com/24171752276tnqrh.pdf
    • http://fabimepela.22web.org/xaporugexawebijod.pdf
    • http://tokio-2020.fun/wosomop93f81.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/102230e6-09ca-46d7-8caf-39fe5e29810d/duwebegusamabobeno.pdf
    • https://uploads.strikinglycdn.com/files/097a0ba2-f044-47a2-9185-6d534f599971/bitazojajezuxupedakez.pdf
    • https://uploads.strikinglycdn.com/files/e83a9687-9f6e-4a1c-a2f2-571137a48c15/81174655743.pdf
    • https://uploads.strikinglycdn.com/files/a37b9e3c-0743-4a5b-9396-7c5d8d98d364/what_are_some_examples_of_household_hazardous_waste.pdf
    • https://uploads.strikinglycdn.com/files/683b4ce0-78b1-4560-947a-932e9d57b1df/nekikavim.pdf
    • http://dopelafoxumamew.rf.gd/2725754706.pdf
    • https://uploads.strikinglycdn.com/files/04a5cfb0-c4b3-469d-aaba-74de3debe84d/how_much_does_epic_certification_cost.pdf
    • https://uploads.strikinglycdn.com/files/9ee3f164-6971-4e30-a66e-c91c65f8fbb4/how_to_make_coffee_using_hamilton_beach_brewstation.pdf
    • https://uploads.strikinglycdn.com/files/438b2528-62d9-4f1f-be4e-c31ecad40019/how_to_change_time_on_avaya_partner_18d_phone.pdf
    • https://uploads.strikinglycdn.com/files/15ea9cd5-1ee5-4775-942a-659db30a1e0b/did_you_hear_about_the_antelope_who_was_getting_dressed_worksheet_answers.pdf
    • https://uploads.strikinglycdn.com/files/ce3431ad-8f1a-4fc2-8f80-992969f7d126/83306070147.pdf
    • https://uploads.strikinglycdn.com/files/2d06b711-e0b1-406c-bcbc-b10fdcde4d48/how_to_calculate_fv_with_ba_ii_plus.pdf
    • https://uploads.strikinglycdn.com/files/4ce9a3e6-3749-4299-a0e0-7c11047a2714/57867601954.pdf
    • http://gobarasajiv.epizy.com/probabilistic_programming_bayesian_methods_for_hackers.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000115fb.bin
e49c261d249ad1fb30a20e36cd01ca0d0e59f8f373c95858024db68f64dc2b0f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x115FB 5288 bytes
font_01_sfnt_off00012829.bin
0bce410df5d440acae8abc8e46dc634d1d62101ccf86a44272e465ce965c21bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12829 11996 bytes

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