Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7c80654fc36679c…

MALICIOUS

PDF

73.5 KB Created: 2021-04-18 04:26:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e283402a8339630499b8fbabe3a4d850 SHA-1: a6c475ea3d7e3cc27b20ace4d5c10a5ac41cfd46 SHA-256: e7c80654fc36679c34ad0cd0572a2ed91ba119249910a6067031051b1038a364
96 Risk Score

Malware Insights

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

The PDF contains an external URI pointing to a suspicious domain, which is a strong indicator of a phishing or malware distribution attempt. The ML classifier and ClamAV detection further confirm its malicious nature. Although no scripts were extracted, the presence of embedded URLs and the overall context suggest the document is designed to trick users into visiting malicious sites, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • 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://ponafet.ru/strik?utm_term=ernie+ball+volume+pedal+dimensions
    • https://cdn.sqhk.co/foroboreb/EChf0jc/nizegokivugewojirivas.pdf
    • http://dlkmvkoenv.info/kuzala84txg.pdf
    • http://cafe-cok.ru/jusesixoo8v2.pdf
    • https://cdn.sqhk.co/zikufojigox/jjwjh8I/16375117239.pdf
    • http://supsun-aero.com/rujapi0xvq.pdf
    • http://meetraisins.club/what_is_stasis_theory_in_rhetoricf0b9l.pdf
    • https://cdn.sqhk.co/wifopuzuxiba/hbzwuQ6/63347645356.pdf
    • http://adminhalil.com/crazy_russian_hacker_net_worth4e6cp.pdf
    • https://cdn.sqhk.co/livujiguf/dCWEhjF/6279996926.pdf
    • http://goossyy.online/statistics_for_management_free_dztp1e.pdf
    • https://cdn.sqhk.co/bevurokakug/ggicejh/high_blood_pressure_readings_meaning.pdf
    • http://ewwe.space/49190053368ailpx.pdf
    • http://zoomita.fun/55458670595b950l.pdf
    • https://cdn.sqhk.co/nakunadubux/hfOjahd/pavaburinuduwajigi.pdf
    • https://cdn.sqhk.co/fezusife/chijjj8/thrift_stores_brooklyn.pdf
    • https://cdn.sqhk.co/dabozijide/jjjfxgc/health_risks_space_flight.pdf
    • http://oneshops.space/justin_bieber_top_songs_freeqo07w.pdf
    • http://winoraama.site/belomakasirajaliougdq.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/0156954c-be7c-482b-86d4-5d27b7e929f7/how_much_does_starbucks_pay_in_california.pdf
    • https://uploads.strikinglycdn.com/files/974ac2ce-788b-4745-8743-10efef746321/wotola.pdf
    • https://s3.amazonaws.com/legobegutulo/55014978401.pdf
    • https://s3.amazonaws.com/vavabi/all_the_bright_places_netflix_reviews.pdf
    • https://uploads.strikinglycdn.com/files/18664280-087c-438e-ad47-afe0bcad3f8d/pinep.pdf
    • https://www.andertons.co.uk/guitar-dept/guitar-pedals/guitar-fx/ernie-ball-junior-volume
    • 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_off0000df5d.bin
0232e1be331fc5d782848823d81c4457a0455b7c3e4391f1bdbc92a91d30c250
pdf-font-stream PDF embedded font (sfnt) at offset 0xDF5D 5260 bytes
font_01_sfnt_off0000f12d.bin
25fb70183fc96be0ee68ed9229cc3846c0e2bcbc5b7f24869caedc6ac1a40696
pdf-font-stream PDF embedded font (sfnt) at offset 0xF12D 11640 bytes