Malicious PDF — malware analysis report

Static analysis result for SHA-256 cff66bb75ece1703…

MALICIOUS

PDF

70.1 KB Created: 2021-06-04 06:49:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: eb367276c9233e822ecb98949be5368f SHA-1: 71fbc2b8dd3a877ae24e4087fd139622025e9f78 SHA-256: cff66bb75ece170315037b49ba119d81e038f78cb634173c9d4a4361b0471661
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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://pistant.ru/pbw?utm_term=how+to+reset+bad+boy+hour+meter PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4475727/normal_5ffe414b28c84.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415531/normal_6048eb7cba841.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409814/normal_603f0070b036b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489994/normal_606453461ba9c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4503584/normal_6033d6dfc9231.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406789/normal_6047ec8b501d1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4530712/normal_6058f926297a2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382974/normal_6022422d6d2c1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458635/normal_600576125a06d.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4427821/normal_60b1af913a60e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1bb46d4-3c60-45ff-b81d-8e26048e824a/doss_soundbox_xl_32w_bluetooth_speakers_manual.pdfIn PDF document text
    • http://fisukafetif.pbworks.com/f/zozefesilubiwojitiwuvan.pdfIn PDF document text
    • http://wemilamozede.pbworks.com/f/libepigajox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48af4adf-0faf-4c45-b383-dc34a014d028/83715123212.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e8dd2eb-55da-48c5-bf67-e739fdca249a/2012_chevrolet_silverado_z71_specs.pdfIn PDF document text
    • http://negovijalulu.pbworks.com/w/file/fetch/144412662/54241097393.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58420642-2c78-4ae1-bd77-66d93d9e5d45/powutepoxomutiw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef10adb2-cc6a-4d40-b85a-40ff1a5aba6f/how_to_percentile_rank_in_excel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b199f0c3-4fbd-43d4-a782-0f9ca3b7ae7a/reactivity_of_halide_ions_lab_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23f54c64-84d9-4551-9fa9-b40e26f08a9d/does_tillamook_ice_cream_have_carrageenan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/885fadf6-bcf3-435b-8804-7f2e44eb0ae3/tiruralexifaferipufev.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d43f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD43F 5328 bytes
SHA-256: e89b6e47df2813f8e9c633bdfa32c2ecdf87c913276b20cae05167e750e37acb
font_01_sfnt_off0000e640.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE640 11116 bytes
SHA-256: dd0382cd28d29c29e3f25c0b72dc7fe24b06f1ea1eb5c2ba054f8a9de00400a6

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