Malicious PDF — malware analysis report

Static analysis result for SHA-256 82e06d147e5623c1…

MALICIOUS

PDF

99.3 KB Created: 2021-06-05 22:14:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4b1cfe239c0bb05b925a47e4e7a7fca6 SHA-1: 78df6de6b70b27af15450cad1073eb760490660a SHA-256: 82e06d147e5623c1345cd3831e8d0b2cd34b5ed2803b516213c624d0e7d7087f
236 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF file was flagged as malicious by ClamAV and an ML classifier, exhibiting characteristics of an advance-fee scam and payment redirection lure. It contains a large number of external links, many pointing to Weebly-hosted PDFs, suggesting a link farm designed to distribute malicious content or facilitate phishing. The document body, though heavily obfuscated, contains references to financial trading and delivery instructions, aligning with the identified lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 7

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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://queure.ru/pbw?utm_term=how+to+set+stop+loss+and+take+profit+in+mt4+mobile
    • https://daliroxemonove.weebly.com/uploads/1/3/0/7/130775241/fidajojafunomag.pdf
    • https://nererudufujodu.weebly.com/uploads/1/3/4/3/134321338/4613308.pdf
    • https://cdn-cms.f-static.net/uploads/4372085/normal_600c9ff9c22e0.pdf
    • https://cdn-cms.f-static.net/uploads/4471688/normal_5fd39d9f00c1c.pdf
    • https://gebigimudixerez.weebly.com/uploads/1/3/4/3/134374499/5101345.pdf
    • https://xikagarema.weebly.com/uploads/1/3/4/4/134489929/bdd10.pdf
    • https://guniroxu.weebly.com/uploads/1/3/4/5/134525914/9725782.pdf
    • https://lufokojas.weebly.com/uploads/1/3/5/3/135398832/nezox-bazofobuvekulif.pdf
    • https://xexifenenufomag.weebly.com/uploads/1/3/6/0/136082553/72256fc347.pdf
    • https://mipapipav.weebly.com/uploads/1/3/4/0/134012398/6063301.pdf
    • https://static.s123-cdn-static.com/uploads/4379846/normal_5ff25f65c992a.pdf
    • https://vigenawora.weebly.com/uploads/1/3/4/4/134495248/zalit_migotavi_fikewemofowigaj.pdf
    • https://duxobibalarig.weebly.com/uploads/1/3/4/3/134360367/6827f91799e33f.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://pexovobef.pbworks.com/w/file/fetch/144673884/35758852066.pdf
    • https://uploads.strikinglycdn.com/files/7eaec5cb-54df-4c94-bd02-3ca715d607c0/37035205749.pdf
    • https://uploads.strikinglycdn.com/files/ee9f365d-64f3-4667-aded-707caee8db39/bilazemasopes.pdf
    • https://uploads.strikinglycdn.com/files/1208d7e4-6c8f-4de6-8cd6-bf6840ede81f/gatolome.pdf
    • https://uploads.strikinglycdn.com/files/83612db1-939a-4377-912e-8cfd9aa4d488/safubukokowepi.pdf
    • https://uploads.strikinglycdn.com/files/7f9b0c56-6dd4-43f4-8d8d-9f7701fb8cc0/what_are_the_methods_of_data_analysis_in_research.pdf
    • https://uploads.strikinglycdn.com/files/3f8e62de-8cc8-4cdc-9926-55c89e19d119/51003846.pdf
    • http://vevokofeju.pbworks.com/f/zoribajodupotubewati.pdf
    • https://uploads.strikinglycdn.com/files/47a74a52-421b-4e17-b57f-efd29cd0704b/how_to_tell_when_energizer_charger_is_done.pdf
    • https://uploads.strikinglycdn.com/files/c05be744-6833-4efc-91c8-4747bc5b5728/gpsmap_60csx_maps_free.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_off00014725.bin
732af2b1e23ca6d3d733741c3c99eb18af53015c7c8607ccb4fe547dac7b463d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14725 5532 bytes
font_01_sfnt_off000159eb.bin
f180a1d63b4c3c0f11050c5ac8f13ac24744051f5baa6c826a5fae22c76f54da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x159EB 11076 bytes

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