Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a334558620198a0…

MALICIOUS

PDF

153.1 KB Created: 2021-02-17 22:43:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 032a681bfbefab6df379867dcbab24ba SHA-1: 8af7353344a4def0195738441f4e953fd18c4094 SHA-256: 0a334558620198a03fcdcf5d660fb398b1215439aeca0dd674269bf449b20f1b
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that mimics a search result, likely intended to trick the user into visiting a malicious site. ClamAV and ML classifiers strongly indicate maliciousness, and the presence of multiple unknown URLs further supports this. The document body is heavily obfuscated, preventing a clear understanding of its specific content beyond the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/strik?utm_term=what+is+the+meaning+apparatus+in+tamil+passion PDF link annotation
    • https://foluxodemebomo.weebly.com/uploads/1/3/0/7/130739593/bb800dfc58.pdfIn PDF document text
    • http://hydrofthol.space/westinghouse_microwave_oven_partsf5slw.pdfIn PDF document text
    • http://shoop-fr.ru/forest_survival_skillsca25b.pdfIn PDF document text
    • https://gamiwejejorar.weebly.com/uploads/1/3/4/4/134498461/revosurubot.pdfIn PDF document text
    • https://laganavixafalos.weebly.com/uploads/1/3/5/3/135341912/8995669.pdfIn PDF document text
    • http://superheatbelt.xyz/getenotiverunesatavuxazav3369a.pdfIn PDF document text
    • https://bopugokux.weebly.com/uploads/1/3/4/9/134901566/govopafibi.pdfIn PDF document text
    • http://localdesign.me/reporters_killed_todayv018x.pdfIn PDF document text
    • https://jenodaxadow.weebly.com/uploads/1/3/4/0/134012655/desifeko.pdfIn PDF document text
    • https://nagiwudulowep.weebly.com/uploads/1/3/0/7/130775657/dapimagoxanara.pdfIn PDF document text
    • https://sebazolilerop.weebly.com/uploads/1/3/0/8/130874482/a7f0a11ce9f3d22.pdfIn PDF document text
    • https://taburexil.weebly.com/uploads/1/3/4/3/134374137/fadufoxoxorexitifew.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/rafiralexezol/96896408419.pdfIn PDF document text
    • https://s3.amazonaws.com/wovugi/46534456533.pdfIn PDF document text
    • https://s3.amazonaws.com/nedijowewoded/best_paid_android_email_app_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/wiremeresegikon/nulemojukuwugemodurefe.pdfIn PDF document text
    • https://s3.amazonaws.com/purufiz/rainbow_coloring_sheet_printable.pdfIn PDF document text
    • https://s3.amazonaws.com/zarelusipofox/mopinatawedexijifelovavo.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzaganog/vaverusug.pdfIn PDF document text
    • https://s3.amazonaws.com/jawusawar/96622436268.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_off00021c6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21C6E 5248 bytes
SHA-256: a3a02c8d54906424b40982ac34e7d180bf9a6e0b5eb2eb77fb5e381884a271b9
font_01_sfnt_off00022e25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22E25 11848 bytes
SHA-256: 07317fb7a86122d53eb811393c3e3857d63f25044bc12c68884bcd39edcf3ed2

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