Malicious PDF — malware analysis report

Static analysis result for SHA-256 a26a64f176faf0a9…

MALICIOUS

PDF

198.7 KB Created: 2021-03-15 05:04:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: bb2c528e08b3b1eaaab4baf598afb269 SHA-1: 72dba291fa426ff2155b4a29824d114e6066fb1a SHA-256: a26a64f176faf0a9ee3403b100fd2db8f7c99d2c1922802473ae8636c7de6166
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to religious texts, suggesting a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9959

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://maypoin.ru/strik?utm_term=what+are+the+first+three+books+in+the+new+testament PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4374545/normal_6026dc7c442ed.pdfIn PDF document text
    • https://cdn.sqhk.co/luginuwi/iibFUjd/22009120481.pdfIn PDF document text
    • https://cdn.sqhk.co/girolivudafo/7eswXt2/kilusademilawil.pdfIn PDF document text
    • https://xajapeni.weebly.com/uploads/1/3/4/3/134341300/5a3c651.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464874/normal_602332499565a.pdfIn PDF document text
    • https://nulebuset.weebly.com/uploads/1/3/1/4/131411431/nogudasafipev.pdfIn PDF document text
    • https://cdn.sqhk.co/numokafas/lsgg5Jz/center_of_excellence_model.pdfIn PDF document text
    • https://gadudomarun.weebly.com/uploads/1/3/4/7/134705140/disiwid.pdfIn PDF document text
    • https://cdn.sqhk.co/vekuperik/hchdzXo/76043873573.pdfIn PDF document text
    • https://cdn.sqhk.co/kolusugego/5ihgghi/85818483264.pdfIn PDF document text
    • https://bazunebusa.weebly.com/uploads/1/3/5/3/135397504/xurefupijop_xurelajuxumirux_wogukiziwikix_laxafu.pdfIn PDF document text
    • https://gugajapu.weebly.com/uploads/1/3/5/3/135330564/nulov-vogejorumosos-zegaxa-xenopaxiki.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382406/normal_603a5788f0d06.pdfIn PDF document text
    • https://cdn.sqhk.co/litopozuf/cidrjiQ/52119449894.pdfIn PDF document text
    • https://nivagevap.weebly.com/uploads/1/3/1/4/131438423/fonig_goboxowubegasu_jeninivejaj_retinos.pdfIn PDF document text
    • https://neseroto.weebly.com/uploads/1/3/5/3/135326238/kopakajovorajoma.pdfIn PDF document text
    • https://tovexalo.weebly.com/uploads/1/3/5/3/135348509/0024537.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vorafudozef.rf.gd/how_do_i_get_my_hp_printer_to_print_a_test_page.pdfIn PDF document text
    • http://rozatibex.rf.gd/74711008965.pdfIn PDF document text
    • http://mosararivifu.rf.gd/13040119917.pdfIn PDF document text
    • http://tumurubulofomam.rf.gd/xiluxisumivi.pdfIn PDF document text
    • http://tijiwef.epizy.com/zilaketitulonalasoneza.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_off0002c13b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C13B 5284 bytes
SHA-256: a17678d44eba45c1e809c5d43939f845fae669b18deb2948f42d4e8dbe4fb337
font_01_sfnt_off0002d326.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D326 19008 bytes
SHA-256: 45c73d07b614ee764909637f49fe7586d08292532263b4f0d652be30bd84399b

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