Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f36d73c214a06a3…

MALICIOUS

PDF

60.3 KB Created: 2020-11-19 19:48:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f74392b6a1aa1b32a56624c5ba210a22 SHA-1: 7c20b3567aff58c74df6c021a031f5fb08ee19c7 SHA-256: 1f36d73c214a06a365d9e6c280ce7792b573ca3f194bbd06d1d571e8f9ed014c
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL pointing to 'traffine.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, appears to reference a product advertisement, suggesting a social engineering lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://traffine.ru/123?utm_term=chiquita+banana+bread+mix+-+3+boxes
    • https://cdn-cms.f-static.net/uploads/4375690/normal_5f91304782ef5.pdf
    • https://rutaluxunenore.weebly.com/uploads/1/3/0/7/130740368/nelimeraxumuxusufe.pdf
    • https://cdn-cms.f-static.net/uploads/4386609/normal_5f92465cef1d0.pdf
    • https://titamifafipife.weebly.com/uploads/1/3/4/3/134315234/vuwepujiwetuj_xonamejef_mirusexikize_ruxezubok.pdf
    • https://cdn-cms.f-static.net/uploads/4444092/normal_5fb2821feb4b7.pdf
    • https://ravusosu.weebly.com/uploads/1/3/4/5/134589623/6454624.pdf
    • https://xeponadutowa.weebly.com/uploads/1/3/4/6/134612209/mimiloguj-geluduparut-bovog.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/fe8dbade-7b47-445c-a54b-5b3d31d3549a/59823399471.pdf
    • https://s3.amazonaws.com/mupakijivuruzim/nasikoxobe.pdf
    • https://s3.amazonaws.com/xefejevife/sas_scan_function_ucla.pdf
    • https://uploads.strikinglycdn.com/files/ce7dedc8-d257-43a8-996e-419682b6e864/aries_horoscope_ganesha.pdf
    • https://uploads.strikinglycdn.com/files/d63cf49c-3801-4bb7-acc8-66a257b50682/44900040884.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ae3e.bin
2d449c1746773458b02920c853ea69d9c9667e97a7a2a7323cd5305a7e901629		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAE3E 5468 bytes
font_01_sfnt_off0000c0a9.bin
29643be64e1334901abfc055a0f105e34a5308cb61f98b98dce0262dcd09d696		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC0A9 10500 bytes

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