Malicious PDF — malware analysis report

Static analysis result for SHA-256 afb1af27526e692e…

MALICIOUS

PDF

105.9 KB Created: 2021-03-18 19:17:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 71d7a58106c2f827ce5b53471ad8a10d SHA-1: 9a278423a5d52cc2b29073ed4d099304b3fd01ce SHA-256: afb1af27526e692e53c5dd8b4ad85ad750a83fe28a10fda9fc3de564eaa23250
156 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan-like behavior. The document contains a large number of external links, suggesting a link farm or redirection mechanism to malicious sites. The embedded URLs, such as 'https://soxebez.ru/award?keyword=belief+in+angels+in+islam+pdf', are likely used to direct users to phishing or malware-hosting pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://soxebez.ru/award?keyword=belief+in+angels+in+islam+pdf PDF link annotation
    • http://activa-fb.com/17892086026yoyxf.pdfIn PDF document text
    • https://pawunotapi.weebly.com/uploads/1/3/1/4/131408062/masogosuvu.pdfIn PDF document text
    • https://retowukiri.weebly.com/uploads/1/3/4/5/134592720/7d281b74.pdfIn PDF document text
    • https://zudamuberul.weebly.com/uploads/1/3/4/8/134854759/e601924d33f5.pdfIn PDF document text
    • http://lasleymarkt.ru/competing_interests_scientific_reportsdnrqe.pdfIn PDF document text
    • https://kipigifusulip.weebly.com/uploads/1/3/4/4/134437712/luxunudosofo.pdfIn PDF document text
    • http://m-ryanaf.site/26943690632ghfxa.pdfIn PDF document text
    • https://mefosenide.weebly.com/uploads/1/3/4/7/134715399/soguli.pdfIn PDF document text
    • https://jumifusat.weebly.com/uploads/1/3/4/6/134629025/3ebbc.pdfIn PDF document text
    • http://deflecfcvy.best/76858629022vgvhc.pdfIn PDF document text
    • https://lekumoga.weebly.com/uploads/1/3/2/6/132683130/7438404.pdfIn PDF document text
    • https://delupizamima.weebly.com/uploads/1/3/4/5/134578079/50dd84.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/liwafo/exponent_rules_worksheet_math_drills.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/capital_markets_authority.pdfIn PDF document text
    • https://s3.amazonaws.com/vetamedisoz/datomazodudipak.pdfIn PDF document text
    • https://s3.amazonaws.com/rilexazejuzovep/27359019834.pdfIn PDF document text
    • https://s3.amazonaws.com/dejazuvorira/40722899217.pdfIn PDF document text
    • https://s3.amazonaws.com/vawoginele/gujarati_new_whatsapp_video.pdfIn PDF document text
    • https://s3.amazonaws.com/pulavokaxe/csgo_knife_buying_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/widetunipet/d_d_3._5_celestial_template.pdfIn PDF document text
    • https://s3.amazonaws.com/guwutivupudutu/bolinipojonirerevol.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00017864.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x17864 20076 bytes
SHA-256: 6ffbd207be20098997e68f82d83a7cdd5f0b7d6b2b57b62a1284ed8ebe7fa541
font_00_sfnt_off00013aff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13AFF 5316 bytes
SHA-256: 515cc90a6a56055f8a2726ed41b3b22f085536bf3ef011c44f432c1ab172e964
font_01_sfnt_off00014d0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14D0E 13780 bytes
SHA-256: ae88d10d467e938e2f0c26af9158f41e0997b4bdbf09913370fba7cbcb5b12c0

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