Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5e320322a58ea90…

MALICIOUS

PDF

104.4 KB Created: 2020-11-26 05:52:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 46d04da07b1b3586e3f6bc6d24266edf SHA-1: 2412e1932e402b36c9d5ec8e1eb20364db990a07 SHA-256: f5e320322a58ea901a3cbe855240433ef60eb5a2b4036b482ddaed57d5ba6b56
154 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 routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://cctraff.ru/strik?utm_term=after+effects+sinhala+tutorials+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4465707/normal_5fab96240746f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374704/normal_5fb8550f3bc7f.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/bb2abd06-7f24-4126-84df-076dd2a4dddf/bekipibulakoxijalop.pdfIn PDF document text
    • https://s3.amazonaws.com/fifuto/paradise_bay_download_to_laptop.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubatebedoxez/dua_and_adhkar.pdfIn PDF document text
    • https://s3.amazonaws.com/lijopavexanuse/el_liderazgo_de_jesus_c._gene_wilkes.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/learning_drawing_and_painting.pdfIn PDF document text
    • https://s3.amazonaws.com/peveziwoguxuzam/frost_free_upright_freezer_vs_manual_defrost.pdfIn PDF document text
    • https://s3.amazonaws.com/nerugiraxura/lalexaxetomijajejim.pdfIn PDF document text
    • https://s3.amazonaws.com/dojonuta/zugofodineludi.pdfIn PDF document text
    • https://s3.amazonaws.com/taguxif/cara_windows_10_64_bit_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/84200969743.pdfIn PDF document text
    • https://s3.amazonaws.com/xajowu/combined_oral_contraceptive_pill_guidelines_uk.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d772.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD772 40992 bytes
SHA-256: fd2e2492bebbe2a058655d735f9e521a91632c78853dd392d6c02b23d37d2de5
font_01_sfnt_off00014216.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14216 5232 bytes
SHA-256: 39cc1e3154db48df16ade0b23a69abba53c904e265a090e4a490e7444b36eaaa
font_02_sfnt_off000153e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x153E0 1748 bytes
SHA-256: 247269741f98d8db673b7b95a671bfa625036eb812ba676eab0b225b14936c0f
font_03_sfnt_off00015c50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15C50 10260 bytes
SHA-256: cb83ef2879787fab1455a848db1ea5c6d74c3269145824e9d23d5ae5e4193fd8
font_04_sfnt_off00017e21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17E21 16332 bytes
SHA-256: accc31b77c0cd2f5aa529b91e219c8d84450374373bd41a58144fed79d68d0d8

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