Malicious PDF — malware analysis report

Static analysis result for SHA-256 f852fefe961fb452…

MALICIOUS

PDF

69.4 KB Created: 2021-04-03 09:52:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: af4576ed006407c141215992ace4ca94 SHA-1: a128d3140a0bdd382d6487d9dbbc11e54d063b84 SHA-256: f852fefe961fb452b10b7bfc9ff6d2548c3d972038d11b5433400eeec72e5d0f
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URL that directs users to a suspicious domain, likely for further exploitation. The document body, though heavily obfuscated, suggests a lure related to 'morgana robinson travel man'. No scripts were extracted, but the presence of an external URI points to a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/wix?keyword=morgana+robinson+travel+man
    • http://turistik-a.ru/you_are_god_alone_lyrics_and_chords_key_of_glno2e.pdf
    • http://omerkatanalp.com/ffxv_official_guide_download70k32.pdf
    • http://islemleriniz.org/47824033839y5a29.pdf
    • https://cdn-cms.f-static.net/uploads/4402294/normal_6010ff51cd0e9.pdf
    • https://cdn-cms.f-static.net/uploads/4414867/normal_604b62dab5dcc.pdf
    • http://sluzhba1.net/44774392350s6yb2.pdf
    • http://nefritthebestthing.site/xijetux6fwgm.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://e6c529cc-411f-4195-b5ea-7b5fd081490a.filesusr.com/ugd/b7ab08_6bcd09901edc40829405ece438702a64.pdf?index=true
    • http://donaweraketo.rf.gd/82121087305.pdf
    • https://97e6e6c8-040d-427c-ad66-6ef02350ae38.filesusr.com/ugd/9c523c_986ac11a2b2e432d8642a7593f1d2c0a.pdf?index=true
    • https://uploads.strikinglycdn.com/files/e9e34f36-038f-4fd6-a743-9ea0bf795d51/rowatixavajobipis.pdf
    • http://zekakodususebu.epizy.com/7343603473.pdf
    • https://uploads.strikinglycdn.com/files/d423afcf-d564-4bc6-8ec3-33218b06d30b/zmodo_wifi_camera_installation.pdf
    • http://zipoxibel.epizy.com/79623824471.pdf
    • https://7f1d4f38-7308-4051-b389-b8ed31312188.filesusr.com/ugd/e948c1_0b8f3eb76c46441085641056a9778319.pdf?index=true
    • 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_off0000cf9d.bin
2f8e742d0c4166e3f070c6eedab45cfdf88ac3b6ae6d678354684b6ec26c86e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCF9D 5212 bytes
font_01_sfnt_off0000e152.bin
b72f19085edf99165a87bae8746adf3f42ad78f5207f5b9ce637ed1ac923d388		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE152 11284 bytes

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