Malicious PDF — malware analysis report

Static analysis result for SHA-256 af6d2453df7d49e9…

MALICIOUS

PDF

74.2 KB Created: 2021-04-01 07:11:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2546b30ef53076da7c3c2122d16d5170 SHA-1: 981cf34ff9123e0bb9cfd9fdbece358760d45c8d SHA-256: af6d2453df7d49e9ddb092bf97222debbafb1efb1a59ca92a0b97c029efbc6d1
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 high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to game content, aiming to trick users into clicking the malicious link.

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://mezovuduw.ru/wix?keyword=rockruff+pixelmon+reforged
    • http://circulyarkadigital.xyz/mebixabifesoluwepexam53.pdf
    • https://nubavusixid.weebly.com/uploads/1/3/5/3/135348304/c6ed7f.pdf
    • http://texno3ua.com/dosoxororuxeditusajox0fp0k.pdf
    • http://lg-copyright.com/wowasanajakamc19r.pdf
    • http://organicnu.info/tekken_7_geese_guideruo31.pdf
    • http://meetplafond.xyz/against_the_current_gravity_acoustic_album49yg7.pdf
    • https://doxuginuf.weebly.com/uploads/1/3/5/3/135346615/9347208.pdf
    • http://medilawibume.scienceontheweb.net/79302699114.pdf
    • http://mmamba.ru/wowudalabivelisetla8x4.pdf
    • http://bazis-rostov.com/partnership_agreement_template_between_two_companiest08u0.pdf
    • http://foyou.store/microsoft_word_golf_tournament_flyer_templatea12h1.pdf
    • http://juwupexutaval.mywebcommunity.org/feranawevesipowudir.pdf
    • http://particulier-societegenerale.xyz/95621144302c322i.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/laradusa/xusokasigosuvodadul.pdf
    • https://s3.amazonaws.com/tezude/why_is_my_electric_fireplace_blinking.pdf
    • https://uploads.strikinglycdn.com/files/c0e671a4-150e-4ad9-b0f9-60b0f34f3b51/how_to_get_certified_in_dog_training.pdf
    • http://giworutiw.myartsonline.com/celiac_disease_2020.pdf
    • https://uploads.strikinglycdn.com/files/5104f1c8-5bb5-4753-bf92-99ccc1220293/poulan_pro_pp4218a_repair_manual.pdf
    • https://uploads.strikinglycdn.com/files/fda094a1-cc09-47ae-b291-ce02336ebcf7/what_do_you_wear_under_a_robe.pdf
    • https://s3.amazonaws.com/kujesulad/android_one_s2_miracast.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_off0000e513.bin
c194f436b71d9b113d6da89ba184da4505fb754a2cf893ff6045775dfc4bc316
pdf-font-stream PDF embedded font (sfnt) at offset 0xE513 5228 bytes
font_01_sfnt_off0000f6d5.bin
89b3b460b5e7543e81178bc6b290138487208b44fc4a5e26bd20e3d0a53e77bc
pdf-font-stream PDF embedded font (sfnt) at offset 0xF6D5 10900 bytes