Malicious PDF — malware analysis report

Static analysis result for SHA-256 84a696660738c15d…

MALICIOUS

PDF

75.2 KB Created: 2021-02-28 10:03:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 6a9a4554b7ecb4ffccbe24aaa4dfd952 SHA-1: 52d6145977cdd72f2317edada9f743e297814b96 SHA-256: 84a696660738c15dee777a489c0c8e05b84de22111b3a6b97509d34892f6b9f4
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URI pointing to a suspicious URL, which is likely used to deliver a malicious payload. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. While no scripts were directly extracted, the presence of an external URI suggests an attempt to download and execute further malicious content.

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://xajibur.ru/strik?utm_term=warriors+don%2527t+cry+pdf+download PDF link annotation
    • http://nurokojo.mypressonline.com/how_to_fix_a_water_cooler_that_doesnt_cool.pdfIn PDF document text
    • http://nujokopinud.iblogger.org/tp-link_wpa4220_wifi_powerline_adapter_kit.pdfIn PDF document text
    • http://jojidasusesot.sportsontheweb.net/how_to_describe_creepy_trees.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwonumatag/kggeqii/nididelajaxev.pdfIn PDF document text
    • http://vusejulene.iblogger.org/how_to_format_sd_card_write_protected.pdfIn PDF document text
    • http://midarujiwuvi.mygamesonline.org/nexezanapefeviboke.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387928/normal_600fd67fd4788.pdfIn PDF document text
    • http://drenajkrasnodar.ru/saramimiganav9b0u.pdfIn PDF document text
    • https://cdn.sqhk.co/gukokefa/dhbgjRF/zigorumefilig.pdfIn PDF document text
    • https://cdn.sqhk.co/bumegukomuza/geTV22X/37526104465.pdfIn PDF document text
    • https://cdn.sqhk.co/sosobita/aXIhlPM/27705993182.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kuboki/ninam.pdfIn PDF document text
    • http://mubidixosi.epizy.com/pupubatopoz.pdfIn PDF document text
    • https://s3.amazonaws.com/xomudufe/blank_half_fold_brochure_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/zexozavo/beautiful_rose_flowers_hd_wallpapers_free.pdfIn PDF document text
    • http://sodarag.epizy.com/whatsapp_status_video_hd_sad.pdfIn PDF document text
    • https://s3.amazonaws.com/vobuturinivi/subigak.pdfIn PDF document text
    • https://s3.amazonaws.com/bisiku/can_t_hurt_me_book.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_off0000e8e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8E9 5388 bytes
SHA-256: 156967fe207fea8ed3a85eb849259e64dcbbfa8f18b3c36f4ed21e8cd1ec899b
font_01_sfnt_off0000fb75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB75 10720 bytes
SHA-256: 4cc7244a3a7b9747ba9e3541eb022872e515d9d8eb84b28158262365519d10e5

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