Malicious PDF — malware analysis report

Static analysis result for SHA-256 8eced7597c4f747f…

MALICIOUS

PDF

240.1 KB Created: 2021-06-03 04:54:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: f3814867ff7048702d6547bec1f4a270 SHA-1: 16d2908be44bd2388d61479fdfe581f87626a5b6 SHA-256: 8eced7597c4f747f1dce90ab1e15c95b6f49bcfa0ea86abce1a567e23542b0f0
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9838

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://druttle.ru/123?utm_term=bts+vlive+comeback+show+answer PDF link annotation
    • https://rusizugijenu.weebly.com/uploads/1/3/4/3/134340450/4ecd87060c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368229/normal_5fee3a004d651.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455399/normal_5fcaa329aaba9.pdfIn PDF document text
    • https://sutopudebesi.weebly.com/uploads/1/3/1/4/131438093/vugajejojub.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371272/normal_6061f68842dff.pdfIn PDF document text
    • https://lakerevuko.weebly.com/uploads/1/3/4/6/134654656/f671d449d60.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414495/normal_5fd08b5dd73fb.pdfIn PDF document text
    • https://tamalokumolegi.weebly.com/uploads/1/3/4/6/134656593/nipudapakev_lifalapodum.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455914/normal_6029f1cc612a9.pdfIn PDF document text
    • https://xatomurukazaj.weebly.com/uploads/1/3/4/3/134378662/f28d0ec9da1a663.pdfIn PDF document text
    • https://fivilogavizizov.weebly.com/uploads/1/3/4/4/134446089/6e55b5dc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370275/normal_60511397a9be3.pdfIn PDF document text
    • https://lunejuwibamir.weebly.com/uploads/1/3/4/5/134587588/1fe75a48d6a86.pdfIn PDF document text
    • https://pasudavekeri.weebly.com/uploads/1/3/1/4/131437626/78e636c9026.pdfIn PDF document text
    • https://juwarojolajekol.weebly.com/uploads/1/3/4/1/134108785/562107cee26.pdfIn PDF document text
    • https://zukifetev.weebly.com/uploads/1/3/4/7/134725253/4e6a1a708b96.pdfIn PDF document text
    • https://bovagisobupuzod.weebly.com/uploads/1/3/1/0/131070774/xilafigu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452400/normal_6035d0a475fac.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1c10f52-63cb-46d8-977b-e6382fadc907/95057237616.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df5e8a64-de0e-4aca-b608-7e4def750d71/apc_smart_ups_1500_apcupsd.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7dc80bfe-d965-44a4-ad7f-1b279a9cba2d/toliguvugibapetiluzuramiw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a54d4dd-ee23-4b15-8544-d8368f068f22/if_a_guy_really_likes_you_will_he_ignore_you.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00028f9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x28F9B 65236 bytes
SHA-256: 3409852229258bbc4901f0ba0a7971525c258e2a16e89a9e60bc05e9cf3b9939
font_01_sfnt_off00034f83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34F83 5444 bytes
SHA-256: dc62e1a41f35bc1e0e3830daeef9059011a1a9571e9972fec625a9cbd6fdff8c
font_02_sfnt_off000361f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x361F5 25696 bytes
SHA-256: 8b8525a3fcfafdc59caf05e6d8284ba2f4c7e96ef00393c696a8d06eac04de8b
font_03_sfnt_off00039ab1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39AB1 16060 bytes
SHA-256: 99ddc6f5858eb134f8024171ebe717cbd02485c31471b921a5021903b5272953