Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a29ffcec5eb6c63…

MALICIOUS

PDF

75.4 KB Created: 2021-01-15 04:35:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 0e5777ac4d6dd518ec208a8975ec2802 SHA-1: 15be452692dd83eaa39a1a43f2d5f05bf00075d0 SHA-256: 3a29ffcec5eb6c6302da7cb42b110207baa501d4e9c3c788f9405db70c866121
156 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It contains a large number of external links, suggesting a link farm or redirection mechanism. The document body references 'Gta 5 game apkpure download', a common lure for malicious content, and the embedded URL 'https://trafffe.ru/123?utm_term=gta+5+game+apkpure+download' likely serves as a malicious redirect or phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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://trafffe.ru/123?utm_term=gta+5+game+apkpure+download PDF link annotation
    • https://site-1178280.mozfiles.com/files/1178280/ripix.pdfIn PDF document text
    • https://manasowugarubib.weebly.com/uploads/1/3/0/9/130969960/1022782.pdfIn PDF document text
    • https://site-1180799.mozfiles.com/files/1180799/febezowobisajomusifu.pdfIn PDF document text
    • https://cdn.sqhk.co/zifiguwosu/gChfjid/cars_2_cast_with_pictures.pdfIn PDF document text
    • https://site-1166597.mozfiles.com/files/1166597/37025724644.pdfIn PDF document text
    • https://sirutobij.weebly.com/uploads/1/3/0/7/130776617/mubajarevamono-kejolevumudani-kufipo-sofosemufozilef.pdfIn PDF document text
    • https://cdn.sqhk.co/bejomewuv/gfjiha4/mino_monsters_2_evolution_download_for_pc.pdfIn PDF document text
    • https://site-1173302.mozfiles.com/files/1173302/h_pylori_triple_therapy_guidelines.pdfIn PDF document text
    • https://site-1177566.mozfiles.com/files/1177566/xenobiotic_biotransformation_genes.pdfIn PDF document text
    • https://site-1177405.mozfiles.com/files/1177405/deuterated_chloroform_chemical_shift.pdfIn PDF document text
    • https://site-1178226.mozfiles.com/files/1178226/vubupavesijezidikaxazu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/nafibanefexex/gadumumejufofitava.pdfIn PDF document text
    • https://s3.amazonaws.com/fidefofudi/reported_speech_time_expressions_exercises.pdfIn PDF document text
    • https://s3.amazonaws.com/sivanira/for_app_music.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwenoxuzasila/puwusutujakavufuximu.pdfIn PDF document text
    • https://s3.amazonaws.com/rodigapigeta/wumonemotu.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_off0000eb30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB30 5412 bytes
SHA-256: 9c897e8726c61ae73ec0c5f455d759cf65ef4aa445ac07cdf611f244ac0dcc87
font_01_sfnt_off0000fd9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD9F 10196 bytes
SHA-256: 3a874b6a5eed2fd31c37441f06a79c6137f1f0af38b9c13e1c96fb8121de1375

Open this report in the interactive analyzer, or submit your own file for analysis.