Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6619d2976b7c8b3…

MALICIOUS

PDF

79.7 KB Created: 2021-03-16 17:56:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 625874802be353b1b893c43cc8bffcbc SHA-1: 14c671a3b4151add8ccb0d09e19f7fed61165c01 SHA-256: d6619d2976b7c8b3eafcf8e8b81acfc3c2d0ce8f2e59c37feb718bb411977ecd
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a site offering 'coc private server apk', suggesting a lure for game-related downloads which often host malware. ClamAV detection and ML classification strongly indicate malicious intent. The presence of an external URI points to the download of a secondary payload or redirection to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://dafemum.ru/wix?keyword=coc+private+server+apk
    • https://cdn-cms.f-static.net/uploads/4417429/normal_601e63d22ebc6.pdf
    • https://zonanasuwovu.weebly.com/uploads/1/3/2/6/132683154/083aa77505d6.pdf
    • https://mijezuri.weebly.com/uploads/1/3/0/9/130969422/4085957.pdf
    • https://cdn-cms.f-static.net/uploads/4479460/normal_6039c18fc791c.pdf
    • https://rarerosedipise.weebly.com/uploads/1/3/4/8/134876587/ddb686b1acc9.pdf
    • https://vidokabotofasi.weebly.com/uploads/1/3/4/8/134868814/9717208.pdf
    • https://cdn-cms.f-static.net/uploads/4453908/normal_5fd9654ce1239.pdf
    • https://cdn-cms.f-static.net/uploads/4417997/normal_6044d1f39ba60.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/dugibabafod/mozilla_firefox_49._0._2.pdf
    • https://s3.amazonaws.com/jozaponi/89126814758.pdf
    • http://noxukimu.myartsonline.com/liramitisazimilitux.pdf
    • https://uploads.strikinglycdn.com/files/3ea3285a-dc99-4273-87fb-e462303f25e8/in_christ_alone_piano_chord_sheet.pdf
    • https://uploads.strikinglycdn.com/files/c86fb90e-26d5-482a-8565-fa7ff3600aed/how_to_learn_currency_exchange.pdf
    • https://uploads.strikinglycdn.com/files/3eec0c8f-311c-478a-8874-79be1fa1a24f/marksman_model_2002_repeater.pdf
    • https://uploads.strikinglycdn.com/files/26125a67-5a60-4de7-9201-54c07e0f3226/what_is_warren_buffett_investing_strategy.pdf
    • https://uploads.strikinglycdn.com/files/9608d94d-e404-4a3b-9004-734801b1e940/danby_kegerator_instruction_manual.pdf
    • https://s3.amazonaws.com/kesumasaka/sedixinolotadepejugatide.pdf
    • https://s3.amazonaws.com/zatazewoz/zufaviwawov.pdf
    • http://wififeju.atwebpages.com/pamewosuxudonisunez.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_off0000fa7a.bin
04382bb4dbc7d309cfb296543f1f45465da11fd1c2cfc138301b11bcf1e16032
pdf-font-stream PDF embedded font (sfnt) at offset 0xFA7A 4924 bytes
font_01_sfnt_off00010b50.bin
9b877122a4a1368c4b07f387eac4dad50047119726cde68f56da7e89538976be
pdf-font-stream PDF embedded font (sfnt) at offset 0x10B50 11144 bytes