Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccd183a390c8927e…

MALICIOUS

PDF

180.9 KB Created: 2021-05-23 02:50:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 39a1d78a9a7d83b79bd56b27e9a621cd SHA-1: 97bb1c71de17f2171696d944bb9c40c20cfac7f6 SHA-256: ccd183a390c8927e5d5baf86badaede0d1a5b648c73f6d67bb1371a87b530501
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The document body, though heavily obfuscated, suggests a lure related to 'the book of Enoch'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9986

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://botokaw.ru/strik?utm_term=what+is+the+book+of+enoch+about
    • https://xugoxokolo.weebly.com/uploads/1/3/5/3/135392162/zujugusasovijonobaro.pdf
    • https://cdn-cms.f-static.net/uploads/4494430/normal_60261dc0b8ba0.pdf
    • https://cdn-cms.f-static.net/uploads/4485173/normal_603ebf2fedae2.pdf
    • https://static.s123-cdn-static.com/uploads/4391015/normal_5fef9be0a48ed.pdf
    • https://cdn-cms.f-static.net/uploads/4380887/normal_5fdba74beec9a.pdf
    • https://vagafanuwojuxiv.weebly.com/uploads/1/3/0/7/130776749/6189976.pdf
    • https://static.s123-cdn-static.com/uploads/4485942/normal_6005c647b102c.pdf
    • https://cdn-cms.f-static.net/uploads/4368782/normal_6066b3059e966.pdf
    • https://cdn-cms.f-static.net/uploads/4384050/normal_602fda0ea15ec.pdf
    • https://lapadodipelij.weebly.com/uploads/1/3/1/1/131164402/e27f772aaf61b37.pdf
    • https://zewogamiwivu.weebly.com/uploads/1/3/4/3/134313422/0464f26bb675e.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/2e9cd642-ad4e-44ae-bb00-66be71f88b09/xuvabivanaxuletuzot.pdf
    • https://uploads.strikinglycdn.com/files/c74fdba3-009e-4eaf-884a-65de85bc502e/92777064182.pdf
    • https://uploads.strikinglycdn.com/files/df38e0dc-d03b-4223-97bc-185d8feb5414/building_construction_cost_handbook.pdf
    • https://s3.amazonaws.com/jamuluvuvava/xewab.pdf
    • https://s3.amazonaws.com/lukepepe/camp_x_canada.pdf
    • https://uploads.strikinglycdn.com/files/c26a38d1-1e55-4abd-994c-a0e1b661b501/68577358251.pdf
    • https://uploads.strikinglycdn.com/files/a020bc06-6017-4f19-b1c3-a269d2eec44d/48593833006.pdf
    • https://uploads.strikinglycdn.com/files/5d87cb5c-ccd2-43c7-b1fa-85f51c3e1e5f/tomtom_go_500_battery_replacement.pdf
    • https://s3.amazonaws.com/kefiperizonofu/tezusevonirosetije.pdf
    • https://uploads.strikinglycdn.com/files/6be21b3b-8ffe-4b33-aafa-b645cf0173ab/activity_sheets_for_3rd_graders.pdf
    • https://uploads.strikinglycdn.com/files/6cd645e0-842f-4381-bb2c-1c90fc9cd5fc/engenius_eap600_factory_reset.pdf
    • https://uploads.strikinglycdn.com/files/45e1840f-0389-4f09-bb3b-cd1d2472fa73/35598987547.pdf
    • https://s3.amazonaws.com/jovekus/girly_birthday_invitation_template.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/
    • https://savannah.gnu.org/projects/freefont/
    • http://www.gnu.org/licenses/
    • http://www.gnu.org/copyleft/gpl.html
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000242c0.bin
c4dcad1feeea4f484918c21f4894e38718ba50515a416386cbbbfb883eaa89b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x242C0 21696 bytes
font_01_sfnt_off00027d72.bin
6bab8f47f302b980bebfcea58b42934938294e3da639554550b7b4d2741abfd5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D72 5056 bytes
font_02_sfnt_off00028ebd.bin
c6c7c38fd0b3b8c578a75f0877f3bca7db8c9a9a1e7806dd65285d10d1f289ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28EBD 18560 bytes

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