Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c695ca705636eea…

MALICIOUS

PDF

85.0 KB Created: 2021-03-21 11:54:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 8a9f4eb5ed0f1087791a050504e11204 SHA-1: 09884ba4ac53ccd138bce6168eacf927a1d5e27e SHA-256: 3c695ca705636eead9f014a84633df2ba64c284786a12f76958b96c6c203db34
172 Risk Score

Malware Insights

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

The PDF contains heuristics indicating it is a phishing document with a link farm and urgency lures. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a phishing or malware distribution attempt, likely using a social engineering pretext to trick the user into clicking a malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://gimoguvi.ru/123?utm_term=tamasha+movie+hd+1080p+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4488133/normal_6015b73b67f81.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403960/normal_6034e1ced8419.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384828/normal_5ff632c1c24b4.pdfIn PDF document text
    • https://rogetaguw.weebly.com/uploads/1/3/1/4/131407632/32feda6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376382/normal_6012a32c919b3.pdfIn PDF document text
    • https://tunawirivam.weebly.com/uploads/1/3/1/4/131437064/nesipigajiwa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449630/normal_6056aea5e724d.pdfIn PDF document text
    • http://xoxosedefoxadu.mygamesonline.org/kiwelafe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://scripts.sil.orgThisIn PDF document text
    • http://www.fontrix.comhttp://www.nhncorp.comIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://s3.amazonaws.com/mogipegi/5194113709.pdfIn PDF document text
    • https://8ed62699-7d02-4439-b935-4286882ef7d4.filesusr.com/ugd/229b11_e6217ea009e64a84919f6c60dfae772f.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jotizifime/lomulaperepawug.pdfIn PDF document text
    • http://vujapoguxesak.myartsonline.com/nenozonireferozedonanewi.pdfIn PDF document text
    • https://s3.amazonaws.com/xepululejiwof/fill_your_ei_report_online.pdfIn PDF document text
    • https://40fd9d30-e691-4ad4-9ff9-7de67b304886.filesusr.com/ugd/45b27a_e12b6e14c8f14d8e846cb3ecfb839e47.pdf?index=trueIn PDF document text
    • https://af0fe010-594a-4ec7-a26b-e2d78e33490d.filesusr.com/ugd/7d2910_3f52da177d9a444798bb5ef471aee3a0.pdf?index=trueIn PDF document text
    • https://e5eb5b25-b33c-43e3-82d5-57ab1bf863d8.filesusr.com/ugd/b0c717_3a3f3be7f2784783986c6145b0e1d867.pdf?index=trueIn PDF document text
    • https://6fd4412c-3e6e-4f21-a9af-8137ffc6c0d9.filesusr.com/ugd/03469c_6cde389720364da3ad304ec102282463.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bupijila/eccentricity_earth_science_worksheet.pdfIn PDF document text
    • http://jafixomedimun.onlinewebshop.net/35473556600.pdfIn PDF document text
    • https://s3.amazonaws.com/mexavofezoxi/manual_gps_garmin_nuvi_52_espaol.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
    • http://scripts.sil.org/In PDF document text
    • http://scripts.sil.org/OFLAbyssinicaIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d5be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5BE 5648 bytes
SHA-256: dd6817c51892499651ab2a2a7dcac38587729f9584a55435e501833893bd480c
font_01_sfnt_off0000e8d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8D2 20968 bytes
SHA-256: 699a8b55e50cd80192193eb3832e3199d82edd581ff2a4f3bd3563cc6d5fef53
font_02_sfnt_off00010907.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10907 11496 bytes
SHA-256: a4d9506817327e625de56ca844923263c5158f688a074788d5cdc33e637ad36d
font_03_sfnt_off00012fcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12FCB 2056 bytes
SHA-256: 7be423a9975dd74696fa28cd46b52a55c3739f4a885228df3b07ea410fd2731b
font_04_sfnt_off000138be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x138BE 2832 bytes
SHA-256: ee8afa51e50492bdf4d25b6b01818d2021856a0eb5271b70f188e6d094f25891

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