Malicious PDF — malware analysis report

Static analysis result for SHA-256 acf647ddcf2021e5…

MALICIOUS

PDF

67.1 KB Created: 2020-11-10 13:39:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 34d25e617516c6c05d1cc4ad0887b860 SHA-1: 188de6314375ac2c4045209bfc249978a3175ae2 SHA-256: acf647ddcf2021e5a0838db762cf5fadbbc80d5c45bd8763ada429e507886fb7
96 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a machine learning classifier and ClamAV, indicating malicious intent. The document body references 'Call of duty mobile aimbot apk', suggesting a lure for potentially unwanted or malicious software. An external URI pointing to 'traffking.ru' was also extracted, which is likely part of the attack chain.

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://traffking.ru/strik?keyword=call+of+duty+mobile+aimbot+apk
    • https://cdn-cms.f-static.net/uploads/4389097/normal_5f9db18abafc2.pdf
    • https://rabexowubomisuw.weebly.com/uploads/1/3/1/4/131407155/59c9aabc.pdf
    • https://zelapagetuwuj.weebly.com/uploads/1/3/1/4/131406140/9985066.pdf
    • https://cdn-cms.f-static.net/uploads/4367286/normal_5f88f461d299b.pdf
    • https://cdn-cms.f-static.net/uploads/4392195/normal_5f9dd470edaf2.pdf
    • https://cdn-cms.f-static.net/uploads/4475728/normal_5fa65bdcac832.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/wilugugo/dixunoxusikukagubaxitaj.pdf
    • https://s3.amazonaws.com/bejexe/23910321536.pdf
    • https://s3.amazonaws.com/dudurat/wutim.pdf
    • https://s3.amazonaws.com/gitipelut/uranium_news_japan.pdf
    • https://s3.amazonaws.com/leguvefu/bible_question_and_answer_in_hindi.pdf
    • https://uploads.strikinglycdn.com/files/8b499bb9-3903-44cf-b856-db460d48422b/ratey_calculadora_para_fracciones.pdf
    • https://uploads.strikinglycdn.com/files/ec503a26-43aa-4f52-b762-f0be937c7290/wugefudor.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_off0000cb56.bin
e721c2aabaad83b18d8eb85e576c8f0c23f45021b5dc59d555efe09111e00129
pdf-font-stream PDF embedded font (sfnt) at offset 0xCB56 5124 bytes
font_01_sfnt_off0000dcbe.bin
a5dc38eb4e24cb61bb85294096823e8ff2d23c70593149cb2cb91ce4e22bed89
pdf-font-stream PDF embedded font (sfnt) at offset 0xDCBE 10248 bytes