Malicious PDF — malware analysis report

Static analysis result for SHA-256 b48dbc35f15aba0b…

MALICIOUS

PDF

79.4 KB Created: 2021-04-04 21:50:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ad760839f51c7c0ba6c6fc33a960fd7f SHA-1: 7203c314d27c6f43fb0f86daa43bac9c84de1d0d SHA-256: b48dbc35f15aba0b86b09e0c5e2954268eeba8f61e6ec93783aaf297de5c329c
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL that directs users to a suspicious domain, likely as part of a phishing or credential harvesting scheme. No scripts were extracted, but the presence of the malicious URL and the overall classification strongly suggest a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/aws?utm_term=how+to+start+my+bosch+800+dishwasher
    • https://cdn-cms.f-static.net/uploads/4481053/normal_60287fe1334c8.pdf
    • http://iwhite.space/nuporaturigiwomaitu97.pdf
    • http://lifeshop.pro/gafafudekozikbsrpm.pdf
    • https://cdn-cms.f-static.net/uploads/4368782/normal_60438177a6851.pdf
    • https://cdn-cms.f-static.net/uploads/4443337/normal_5fd9755895288.pdf
    • http://dirupomavi.iblogger.org/63152322240.pdf
    • http://werewov.22web.org/nemiw.pdf
    • http://matroskin.space/dodecahedron_book_report_patternl32we.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cccd2283-d272-450a-840b-6541230ebad2.filesusr.com/ugd/5de1df_fb5d7e0ed3fc48638ec4ab1c358962a8.pdf?index=true
    • https://uploads.strikinglycdn.com/files/6619215b-39e7-4880-ac81-773ed871ed81/10246569069.pdf
    • https://s3.amazonaws.com/xixonu/how_to_become_a_2nd_grade_teacher.pdf
    • http://podemerobetalax.epizy.com/lajivezuwulajawipexaz.pdf
    • https://27420876-d215-4860-9a72-f48db0d0c320.filesusr.com/ugd/4062c2_7dd09fa4d8c94f1998443d723738c488.pdf?index=true
    • https://uploads.strikinglycdn.com/files/760298c7-ffb2-422c-a7ee-c7a09ae0d0ed/target_garmin_vivofit_jr_2_spider_man.pdf
    • https://s3.amazonaws.com/sajezife/bollenti_spiriti_1981_full_movie.pdf
    • http://surafupomef.epizy.com/ccea_gcse_biology_textbook_answers.pdf
    • https://s3.amazonaws.com/xujitezu/razewaxakirir.pdf
    • https://s3.amazonaws.com/fipijife/53437422160.pdf
    • https://8c0e102b-efba-4641-b7fc-347c26357927.filesusr.com/ugd/d420ee_b2199fe366974eaba4b1b4fce9731249.pdf?index=true
    • https://s3.amazonaws.com/befafuni/xinarogosi.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_off0000f6f4.bin
0608be370d341a7b1dd02dfed78f333d5d83943067d3c191933df56c7561a9af
pdf-font-stream PDF embedded font (sfnt) at offset 0xF6F4 5780 bytes
font_01_sfnt_off00010a85.bin
0b8a19972107ce3f6508c79015c0bc4f47bf9465eb9860edc7759ea5ca03356b
pdf-font-stream PDF embedded font (sfnt) at offset 0x10A85 10860 bytes