Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fddd9c1edd6d452…

MALICIOUS

PDF

92.1 KB Created: 2021-03-22 08:48:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 970c02b0251d26dac3e63218c5b13d3e SHA-1: ce7af5bc7be69e9e841fd154d53b32882b715a5e SHA-256: 6fddd9c1edd6d4524379e709c150c84bc2a96e6a2245ce46cd6e913339c0f7c7
96 Risk Score

Malware Insights

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

The file is a PDF document flagged by ClamAV as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing campaign. The ML classifier also strongly indicated maliciousness. The document body appears to be obfuscated or corrupted, but the presence of the external URI is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/wix?keyword=zombocalypse+2+unblocked+games+77 PDF link annotation
    • http://togaxifobuf.mypressonline.com/kali_linux_tutorial_indonesia.pdfIn PDF document text
    • https://cdn.sqhk.co/fogizotufijo/idGfyMA/geomorphology_by_savindra_singh_free.pdfIn PDF document text
    • https://cdn.sqhk.co/goworonol/xJczhdP/ritajevidimazu.pdfIn PDF document text
    • http://kudopifupelixi.22web.org/99017214290.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pedovebewazafuv.epizy.com/bufizexi.pdfIn PDF document text
    • https://s3.amazonaws.com/babetafaperaxov/cocoonababy_user_guide.pdfIn PDF document text
    • https://1d942ef5-affb-47d8-8f99-70a3d187b733.filesusr.com/ugd/3283b0_aeca7f8d51124405969cb777113fe0dd.pdf?index=trueIn PDF document text
    • http://tiwosutodegadax.onlinewebshop.net/2056959911.pdfIn PDF document text
    • https://s3.amazonaws.com/libusamagowuvo/harmonica_for_dummies_2nd_edition_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1771af06-8ea5-4736-86c3-5b576def3fdd/multivariable_calculus_solved_problems.pdfIn PDF document text
    • http://mawanujabizeba.rf.gd/48828315762.pdfIn PDF document text
    • http://zakefuki.myartsonline.com/fijugib.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ed5716f-6e62-406b-b4b7-a0a4bca53ea0/amazon_wheel_of_time_book_13.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/392544b9-afdc-45aa-822a-4758e242a029/61218396158.pdfIn PDF document text
    • https://s3.amazonaws.com/mupukesunobaga/53308715955.pdfIn PDF document text
    • https://167c2301-eccc-4e3a-a609-38a4f17b9bf8.filesusr.com/ugd/b1dabf_30f0ab93d6ee42ad899174da5d960847.pdf?index=trueIn PDF document text
    • http://ratagewenik.epizy.com/acker_bilk_sheet_music_clarinet.pdfIn PDF document text
    • https://s3.amazonaws.com/robumuduluwise/46453270898.pdfIn PDF document text
    • https://s3.amazonaws.com/sewamos/43329221677.pdfIn PDF document text
    • http://vivulipepuk.epizy.com/simple_crochet_doily_tutorial_easy_for_beginners.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012b46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B46 5772 bytes
SHA-256: b0f2328a96400b9a76501720ef4a52761944647e8399ff9b5a720162741e099b
font_01_sfnt_off00013ef3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13EF3 10648 bytes
SHA-256: 2956b3fd25e3a69fcfca8622c827d43b0c1150e037f73b49c3ec4cb6242ce48e

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