Malicious PDF — malware analysis report

Static analysis result for SHA-256 c080f153ef0ca7e5…

MALICIOUS

PDF

78.7 KB Created: 2020-12-04 22:18:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 48c75e01e96c5efe6e8a746bc21becf3 SHA-1: 989037242dbb39dbefd371a03e9036dfdc153a1c SHA-256: c080f153ef0ca7e5fe953f6536f2a6baa62818ef10a922b4610ce59f9266a6bc
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://trafficel.ru/aws?utm_term=review+sheet+mask+innisfree+fig PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369926/normal_5f8af346d7218.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402262/normal_5fc70ffe93a35.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4527164/normal_5fca90dc0711c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/f2202292-678e-4372-a4e3-9c79ce917b4d/98010121093.pdfIn PDF document text
    • https://s3.amazonaws.com/muvojugejoxip/mixed_present_tenses_exercises_with_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ee38a85-6726-4265-88f9-be9e4a33c8d8/ronure.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2787a9a0-fd78-4bfa-88bc-dfdcdb5b8591/613705942.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0cbc7c6d964583621a279/t/5fc46bb261e25426e1c5b328/1606708147284/north_korea_climate_change.pdfIn PDF document text
    • https://s3.amazonaws.com/dekogamik/dazozazinelilategedi.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuzo/best_free_fitness_tracker_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e95747a6-bdc8-49f6-be9a-2e103d3c2a13/79200071824.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1896a46-b497-4ddf-9fed-c25b81d5ff1f/eso_provisioning_leveling_guide_2017.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e6cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6CD 5048 bytes
SHA-256: 34c68656be4fe88ffa2d1b84a05fb2feebfc53cd9b6f752e63ec7a1021e3bc42
font_01_sfnt_off0000f7e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7E4 11908 bytes
SHA-256: 7c23521faef937b8e53bc5befea049a5e0812127460b1599481d6049f7e81b87
font_02_sfnt_off00011faa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FAA 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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