Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3c6c48aa2637a87…

MALICIOUS

PDF

91.1 KB Created: 2020-12-25 05:54:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 539e7e7e7adefb8b270c8be9d74cae42 SHA-1: 175c31d913415a205e58990939965648cbe1c0b1 SHA-256: e3c6c48aa2637a87a97d53223f7a46f9c8ba6e0418bb1c8edf9c9463aa721e97
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain and is presented as a download for an 'Action launcher 3 plus mod apk', suggesting a phishing or malware distribution lure. While no scripts were explicitly extracted, the PDF structure and the presence of external URIs are indicative of a malicious document designed to trick users into downloading potentially harmful software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://traffnew.ru/123?utm_term=action+launcher+3+plus+mod+apk PDF link annotation
    • https://cdn.sqhk.co/ruxebiseso/0ibihid/jazezejo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369324/normal_5f895e3938038.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465941/normal_5fb7a508b660c.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://s3.amazonaws.com/xoguwavosuje/6657913870.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd28e1fc-4a95-4d3b-ad01-d8d75445ad58/56706332701.pdfIn PDF document text
    • https://s3.amazonaws.com/faluzotixupi/auction_bidder_form.pdfIn PDF document text
    • https://s3.amazonaws.com/wupiwupiwot/ajanta_ellora_caves_video.pdfIn PDF document text
    • https://s3.amazonaws.com/wemupajese/68616749447.pdfIn PDF document text
    • https://s3.amazonaws.com/lemefofutomapox/zefetedusijaxufi.pdfIn PDF document text
    • https://s3.amazonaws.com/tawosutosuxi/repeated_addition_worksheets_for_third_grade.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7aa24718-d8cc-48e6-9933-ff273be4055e/botcho_cream_and_yodi_pills_testimonials.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e493.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE493 3064 bytes
SHA-256: 8ee2dd62afe9c136d3764e82973467808674383fbd87d51cbc521ec3b402f8d6
font_01_sfnt_off0000ef5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF5D 5412 bytes
SHA-256: eb491143eb8c0e8d3288eebcb4367753482a4d982c05cfaeccee38275a59f33e
font_02_sfnt_off00010180.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10180 4628 bytes
SHA-256: 04b4937832080ecfdd75095b228d8118f9f3ac5d1b9d5ce1faf17682e1f3d932
font_03_sfnt_off000112b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112B8 11592 bytes
SHA-256: cb4bfa1d5fd93795e35f54f24b14a54c30280ed58ee98fc7c65d89d65748063a
font_04_sfnt_off00013a42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13A42 16436 bytes
SHA-256: e561a2bd27d6855c43b67ec3282e055cb59f87414fa51f5d71f56f1699c654af
font_05_sfnt_off00015049.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15049 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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