Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fc2aef9fa205e13…

MALICIOUS

PDF

255.6 KB Created: 2021-03-15 17:06:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 1270deb8d77503cdb80fc7a101678dbf SHA-1: 1c8f4abc50a06bd5e056ffbc157556f798c6edc5 SHA-256: 5fc2aef9fa205e13c448e7bc88cf161a65dd2a49f11d34b40313b3d165ffaa88
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URL that is likely used to deliver a malicious payload or redirect the user to a phishing site. The document body, though partially obfuscated, suggests a lure related to a 'guide'. No scripts were extracted, but the presence of an external URI points to a likely download or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9712

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://midufefew.ru/123?utm_term=ezreal+guide+8.+23 PDF link annotation
    • https://cdn.sqhk.co/wamamuli/hcieVgg/pico_de_gallo_or_salsa.pdfIn PDF document text
    • https://cdn.sqhk.co/sosexazefip/iheiihc/jubeluwurumumesuxol.pdfIn PDF document text
    • https://zalidumi.weebly.com/uploads/1/3/5/3/135351231/4567132.pdfIn PDF document text
    • https://sepoxoritafide.weebly.com/uploads/1/3/1/4/131438330/691a9badf45628c.pdfIn PDF document text
    • https://fowitukusizuge.weebly.com/uploads/1/3/5/3/135325135/bapexa.pdfIn PDF document text
    • https://vufixedita.weebly.com/uploads/1/3/4/8/134884828/zirufo_resemimowu_naxegavedu.pdfIn PDF document text
    • https://lalupapetawosi.weebly.com/uploads/1/3/2/8/132816164/dotalumuwuza-wekagewalikuk-vikogenit.pdfIn PDF document text
    • https://sidugavumudoriz.weebly.com/uploads/1/3/4/9/134902227/ee899daee8fb3.pdfIn PDF document text
    • https://remoruputudedux.weebly.com/uploads/1/3/4/0/134017090/f15f2439b.pdfIn PDF document text
    • https://rominekajamarol.weebly.com/uploads/1/3/4/0/134040464/9336217.pdfIn PDF document text
    • https://sojetupeduxagi.weebly.com/uploads/1/3/1/8/131856567/vabotareso.pdfIn PDF document text
    • https://cdn.sqhk.co/bimolixumotu/5hi1qhj/crossing_church_ministries_live_stream.pdfIn PDF document text
    • https://jufoximivovanad.weebly.com/uploads/1/3/4/0/134013024/d80c7b0.pdfIn PDF document text
    • https://vuvopovakufusoz.weebly.com/uploads/1/3/4/3/134342968/simaju.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://1a447ccf-a6a5-490c-ad31-399ae8169532.filesusr.com/ugd/cf5184_de02b885c50a44d98b0948e191de3428.pdf?index=trueIn PDF document text
    • https://11f44e1d-c86f-4be6-baa1-90970e7c24f5.filesusr.com/ugd/a298ce_6972ea4266fc42b88b7672b90fd29436.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/555c1607-fff5-4a15-bfde-3d58ab1c85f1/marketing_management_jobs_in_gauteng.pdfIn PDF document text
    • https://03aaa7dd-6608-466c-a68c-f41c59811c05.filesusr.com/ugd/ae15ca_14c70d0be8b84a0aaf3001ab2aab3bb5.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/e92942d8-f246-412c-8b08-b96bb1cfcbf2/how_to_test_an_atx_power_supply_without_a_motherboard.pdfIn PDF document text
    • https://ba3a7bb5-edd2-4228-b29c-cf272df6a868.filesusr.com/ugd/bd1c09_9e7d7661cba74fba8a12fc55277cd877.pdf?index=trueIn PDF document text
    • https://6d4cd3b7-91e9-43ac-92b9-205473f1e50d.filesusr.com/ugd/28146e_b865d6eb8d8e4db9beb5f31ddd32613b.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae822012-f0bf-43af-bd35-c61b57bed5a5/38177392459.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003b73a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B73A 5344 bytes
SHA-256: c65cdfbebedc86fbdefd7906fb2a1ed880fe4f45d4aab9973409d6157e3a6812
font_01_sfnt_off0003c97f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C97F 10936 bytes
SHA-256: fab3fdd6bcc88d91c2f9e24ee7ee875e83173e6f6473851cad8572bd8beca999

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