Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e0b62a941977c58…

MALICIOUS

PDF

86.3 KB Created: 2021-05-12 07:40:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9f913cfc30f02360ed53923050d5ed3e SHA-1: 2d8031e38eff6d9f6b73044ef63cab267ab8686e SHA-256: 1e0b62a941977c587aca8fb1f93fa36c65633dd61425b33bcac3dc5ad4c9e4b1
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious URL, likely intended to trick the user into visiting a phishing site. The document body, though heavily obfuscated, appears to contain metadata related to genre filmmaking, serving as a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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=what+is+genre+filmmaking
    • https://wumikedamuzu.weebly.com/uploads/1/3/4/3/134324885/sopamimefixevo-fudalifisoja-zamemozuv.pdf
    • https://cdn-cms.f-static.net/uploads/4425507/normal_5fd84c9d1c6c7.pdf
    • https://cdn-cms.f-static.net/uploads/4485926/normal_5fe76a8e490f0.pdf
    • https://bifomika.weebly.com/uploads/1/3/1/8/131856700/7030280.pdf
    • https://cdn-cms.f-static.net/uploads/4480412/normal_6029ef252b552.pdf
    • https://cdn-cms.f-static.net/uploads/4370987/normal_601fdd2778ef2.pdf
    • https://kekisuganuzab.weebly.com/uploads/1/3/4/7/134721312/2939132.pdf
    • https://mapobosani.weebly.com/uploads/1/3/4/3/134385232/6359451.pdf
    • https://cdn-cms.f-static.net/uploads/4416796/normal_601886549a659.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/d21dd5f3-1faf-4567-ba8a-17883a04f46b/lisagasomebudumakito.pdf
    • http://sajavisazoz.epizy.com/beach_buggy_racing_2_premium_apk.pdf
    • https://ddd59a73-be73-4575-bd7b-2e5900175f8b.filesusr.com/ugd/5dc0ef_336cf5097aee41c0a74445b2c418633a.pdf?index=true
    • https://s3.amazonaws.com/bubeto/nifosubedere.pdf
    • https://uploads.strikinglycdn.com/files/cfa5ab33-6078-41fc-a27e-2f503744a990/2759311934.pdf
    • https://s3.amazonaws.com/nagudo/the_darkest_minds_hardback.pdf
    • https://6f4861c6-cdf0-4a5f-ba2d-f9c5e5bfbee6.filesusr.com/ugd/77941b_2b8d2162429f45c38023f601c675eafe.pdf?index=true
    • https://9a89a7da-ede3-42eb-a537-7416be21eb2d.filesusr.com/ugd/aaaf79_a222c1133a144c389e1d02647a0705d2.pdf?index=true
    • https://7f3dc8b3-869c-44c5-82eb-14ae88d57796.filesusr.com/ugd/dc4ca1_6fd1ccc4c5f244169e8930048a11f13d.pdf?index=true
    • https://05e27880-d5e1-4d3d-8428-ba943e9300bc.filesusr.com/ugd/b56239_cf6b256d4f544b84873f98cdd067899b.pdf?index=true
    • https://s3.amazonaws.com/miledu/buenos_das_mi_princesa_hermosa_te_amo.pdf
    • https://s3.amazonaws.com/pogolo/whats_the_best_way_to_listen_to_music_while_working_out.pdf
    • http://fapibudu.epizy.com/vakinovomudutotutodisoji.pdf
    • https://uploads.strikinglycdn.com/files/4fc5e20b-208e-4232-9ca9-1abd998732e8/cisco_sg200-50_default_password.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010888.bin
74939544bf49d00fb6648441ac7301eaf23f042c7e52ed846858644e6d43c8f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10888 4936 bytes
font_01_sfnt_off0001191c.bin
7ef2dd688e0a0b94f7caf37bf15f302d2a1eea9fea2eca2eecdeb20a6411b1f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1191C 10764 bytes
font_02_sfnt_off00013dd6.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13DD6 4324 bytes

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