Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e756e93c5064493…

MALICIOUS

PDF

114.7 KB Created: 2021-06-07 21:30:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c5b1b6561193362555f6a5ae002027d4 SHA-1: 8f34f3eafaf8b7307315c45fe5d229b83b4efa07 SHA-256: 5e756e93c506449363b87e448a32eed7323086b3c9a457c320a4993effacfd16
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-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://crewmak.ru/pbw?utm_term=english+verbs+list+with+gujarati+meaning+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4409255/normal_5fc6de45592ed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389080/normal_5fe766708451f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428329/normal_6032495887e33.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427506/normal_6029638c40e30.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455374/normal_60229f864431b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457272/normal_5feb8eb475770.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368246/normal_5fcc835bd69cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383334/normal_604e48b5059bf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4503791/normal_602d6bad5b87f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0ed3ae7-94de-42cd-9f9b-00f8c45c73b0/dream_meaning_snake_bites_dog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28dd5831-2724-4616-aded-a0e314d30b57/29393538291.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/def0a404-03b7-4557-96a3-91fda85cb226/what_is_a_fastidious_bacteria.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a63e9bdb-4cd4-49b1-aeb6-2d44ca2dcc33/37250816014.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f92fe8d5-6085-4938-9763-05363c3f26c2/fevusugiz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/efd6bcb6-69a9-4ec6-a310-d3a71781478b/zivuxaxisofo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6fd6ddef-fa80-4cb3-bb75-7af48c7e7323/78004674180.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c745db8c-5faa-4fc6-919e-12cc53fcca14/603959421.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb806f55-1d9a-4260-80a3-db9c38de3457/resuxakuwiloketowute.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 6

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00017117.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17117 5780 bytes
SHA-256: dc23ec3b73f55fe3d2cc489538a2563e6bcf2774bbb49891e531c0228e54de0a
font_01_sfnt_off000184af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x184AF 11640 bytes
SHA-256: 24568c5ba5c3d076fee5efbfdf4473dc2b07f9eb12a8e8c77d9a8924340d1944
font_02_sfnt_off0001ac92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AC92 3868 bytes
SHA-256: b9548a2ba8c7365f16cfeeb9c02e6106c045d076d15c770940518fd23ed145bf

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