Malicious PDF — malware analysis report

Static analysis result for SHA-256 e37e8fb83120af17…

MALICIOUS

PDF

80.5 KB Created: 2021-05-09 10:44:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 3ca0ea525c2f6207ccea5d33db2cf6fa SHA-1: 546b23160fd81efac5e398e91dba4596c96cd820 SHA-256: e37e8fb83120af174c5d5e7d862e6b4f37dd803b70f18030fe0f74f9bde1de8a
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 0.9997

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://xezojetit.ru/strik?utm_term=what+can+we+use+instead+of+apple+pencil PDF link annotation
    • https://cdn.sqhk.co/mevojazix/JifiaDB/walivajugafutozuwobepojus.pdfIn PDF document text
    • https://cdn.sqhk.co/mopomotop/icsZyki/16527385091.pdfIn PDF document text
    • https://cdn.sqhk.co/nogorodizet/hjfJgdU/foderamexukakinodone.pdfIn PDF document text
    • https://cdn.sqhk.co/bobofibu/ggThcgf/megabus_houston_to_new_orleans.pdfIn PDF document text
    • https://cdn.sqhk.co/letarezetap/yziikgg/lutejufe.pdfIn PDF document text
    • https://cdn.sqhk.co/vuwipabobatu/i5ghhhB/99576606688.pdfIn PDF document text
    • https://cdn.sqhk.co/gofelaxes/jdgciea/cube_dash_no_math.pdfIn PDF document text
    • https://cdn.sqhk.co/ludozenidi/ighbigP/87903721866.pdfIn PDF document text
    • https://cdn.sqhk.co/vomisape/GRgdMs4/mix_master_apps_for_ios.pdfIn PDF document text
    • https://cdn.sqhk.co/vegubefeno/uijhhbk/kodolado.pdfIn PDF document text
    • https://cdn.sqhk.co/tobepeliv/ie0ific/pocketinveditor_pro_apk_2018.pdfIn PDF document text
    • https://cdn.sqhk.co/xamitarerivu/hchdFie/98840058455.pdfIn PDF document text
    • http://sotikipi.22web.org/dufakepiroxolaxuzufipeg.pdfIn PDF document text
    • https://cdn.sqhk.co/zofagopipowi/hMhcwWR/15898806117.pdfIn PDF document text
    • https://cdn.sqhk.co/xeloxilava/bBgPULM/battery_plus_discount_coupons.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/luxaduzimase/midoxikirizarugofute.pdfIn PDF document text
    • http://fusezumapaj.epizy.com/59601408191.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubifirigevi/77322364414.pdfIn PDF document text
    • https://s3.amazonaws.com/vunizi/zagiritapekezatusiwixafe.pdfIn PDF document text
    • https://s3.amazonaws.com/begijufadi/16552861321.pdfIn PDF document text
    • https://s3.amazonaws.com/kudefem/the_odyssey_graphic_novel_free.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_off0000fd6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD6A 5252 bytes
SHA-256: aa0ee6488cd7db5a6e5fb5e51b3964a0a05f3462b7b5076c61f1d44c8616ddd2
font_01_sfnt_off00010f67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F67 10952 bytes
SHA-256: 05dfca724504c22016c16daec14d61539ddfa43423f5f28667d2dbd8701d41bb

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