Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e650e52c5558242…

MALICIOUS

PDF

71.4 KB Created: 2021-05-15 00:17:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 082925adfc92cfc5b9776eef1590a875 SHA-1: 2f7c4dde72fefd52973dac38e9be011574383934 SHA-256: 8e650e52c555824230c940225e4025d09e13ac387f3b24916bb88aa25918929e
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. The embedded URLs suggest the document is part of a phishing campaign, likely attempting to trick users into downloading further malicious content. No scripts were extracted, but the PDF structure and embedded URLs point towards a malicious intent to distribute malware or phish for credentials.

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://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/2e91e33fb09013b8ae0101b579bd043a/14283463846.pdf
    • https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb6a402857---75898023392.pdf
    • https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082fe56abb35---78204631935.pdf
    • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/tdd1uvb2utj9fqto7et4tuudg2/91500407018.pdf
    • http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606d51d49c198---98816535602.pdf
    • https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/8fa368a102c078b6cd648af4e2084ac1/41306194568.pdf
    • https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1607086a582ef7---xitukuxebomagolabat.pdf
    • http://xn--80aafkqcanfpgnhbng3b5i9a.xn--p1ai/pict/file/15057988259.pdf
    • https://noddy.nu/images/file/siberetilevi.pdf
    • https://alkhairi.co.uk/wp-content/plugins/super-forms/uploads/php/files/2f0b4c637353d619f896020f355a7b53/54509350225.pdf
    • http://alpha-th.com/userfiles/file/remozekamudenuzir.pdf
    • https://alutat.com/data/file/wogamu.pdf
    • https://apparel.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/fe5b8c6de28b92bc6576e67e700847ab/xuwobeb.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=freepik+ppt+template
    • 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_off0000db30.bin
6e2ef625a16ebbbbec2a2d3992c28ef537457b150fd8640152ac1cda6dd399f6
pdf-font-stream PDF embedded font (sfnt) at offset 0xDB30 4808 bytes
font_01_sfnt_off0000eb78.bin
32faefcd2f3b9782b141fc601508ed356fcf66bf1c0db233a82ccc71ef9dea43
pdf-font-stream PDF embedded font (sfnt) at offset 0xEB78 11236 bytes