Malicious PDF — malware analysis report

Static analysis result for SHA-256 36946e56e5a988e9…

MALICIOUS

PDF

74.3 KB Created: 2021-04-05 07:15:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ca2737d2e5ec61b8fe29566ad9672f0 SHA-1: 29bb421c9a5fd72bb87f13f5119116fc07007422 SHA-256: 36946e56e5a988e9f18f7bba40607b7c10be80ab10f9017d9ca1c04b480f8564
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL pointing to what appears to be IELTS study material, but the file itself was flagged by ML classifiers and ClamAV as malicious. The presence of external URIs and embedded URLs suggests a phishing or malware distribution attempt, likely using the IELTS lure to encourage downloads. No scripts were extracted, but the overall structure and heuristic firings indicate a malicious document intended for phishing.

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://jumiwimov.ru/123?utm_term=ielts+book+6+listening+test+3+answers
    • https://cdn.sqhk.co/foroboreb/haCPggH/bank_sa_coin_counter_locations.pdf
    • http://salonlabs.xyz/62613086052r1vh7.pdf
    • http://kibipasadas.iblogger.org/mamakowemafoxex.pdf
    • https://cdn.sqhk.co/fuwufupi/unjdrje/love_academy_puzzle_game_all_pictures.pdf
    • http://modernstyle.pro/wokewovefu0a8jq.pdf
    • https://cdn.sqhk.co/wirowanorax/ZSK0UbM/81904814629.pdf
    • https://cdn-cms.f-static.net/uploads/4390661/normal_60189f289c7a5.pdf
    • http://futup.ru/aeron_gaming_chair_reviewh2061.pdf
    • https://cdn-cms.f-static.net/uploads/4418178/normal_6042d6a2cbdbf.pdf
    • http://retys.space/49642206040dl1kf.pdf
    • https://cdn.sqhk.co/bepigulusibe/fX3Cd63/kanto_guide_pokemmo.pdf
    • https://cdn.sqhk.co/jivonaxadu/bFia1hd/51973070113.pdf
    • http://nikecortez.net/22413801094mwvdw.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/7189f872-f2b4-40ba-bc60-7d32ac7cafdb/dazovuxosunaniguwafejoken.pdf
    • http://bebezira.epizy.com/biology_textbook_ib.pdf
    • https://uploads.strikinglycdn.com/files/fd118591-835f-4770-8297-8338ab44e572/summer_infant_retractable_gate_instructions.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_off0000e330.bin
523417647ad40a68d0c76d8b8c9b62e2c4bacde86b11f859a74519b4ae2fa7bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE330 5404 bytes
font_01_sfnt_off0000f5b9.bin
204d8f8b72105d267af05caa77114a7b05a1882a14563790908123c5afb3b34d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF5B9 11424 bytes

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