Malicious PDF — malware analysis report

Static analysis result for SHA-256 5781249d2ab155b1…

MALICIOUS

PDF

73.0 KB Created: 2020-11-20 08:39:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fcf87d841ae58d7cf123c59b0899a449 SHA-1: 7c35c7087fe375b5b7f8b0f2a9137efcfd963863 SHA-256: 5781249d2ab155b163bda85ac40e8549fbb609fed7d1ab150648354338d7ce90
96 Risk Score

Malware Insights

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

This PDF document was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. Although no scripts were explicitly extracted, the presence of embedded URIs and the overall detection profile suggest an attempt to deliver a malicious payload or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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=whirlpool+super+capacity+465+manual+pdf
    • https://jarapitoxedomel.weebly.com/uploads/1/3/1/4/131437170/tepelaziporizeg-lejekafigesope-vodotafunilanek-vobasu.pdf
    • https://cdn-cms.f-static.net/uploads/4367951/normal_5f8ab31bd789b.pdf
    • https://muwigoxafom.weebly.com/uploads/1/3/4/8/134869335/zalulikodaxexigotari.pdf
    • https://pidadilux.weebly.com/uploads/1/3/4/6/134666204/gezumuwavizegekis.pdf
    • https://cdn-cms.f-static.net/uploads/4421767/normal_5fa3c702207bf.pdf
    • https://cdn-cms.f-static.net/uploads/4393904/normal_5faafc09562d6.pdf
    • https://cdn-cms.f-static.net/uploads/4375341/normal_5f8f68c84f110.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/fovezewi/suwisazuliv.pdf
    • https://s3.amazonaws.com/xurixado/altium_designer_17_manual.pdf
    • https://s3.amazonaws.com/suxiweke/performance_appraisal_interview.pdf
    • https://s3.amazonaws.com/wovigebi/75712513997.pdf
    • https://s3.amazonaws.com/garorowa/rovutasetesukil.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_off0000dcec.bin
2ebdd0910b1f7a09e4ca1fa4a430a99c4b58aca248344948a24cbf7f6957d356		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDCEC 5876 bytes
font_01_sfnt_off0000f0e3.bin
8590ce52d3c3a196f537d3ebcb055fbf76566977aac4c2c1d038432ae3fb69c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF0E3 11236 bytes

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