PDF malware analysis — malicious · 268d1f258b2ec283

MALICIOUS

PDF

87.1 KB Created: 2021-03-20 08:29:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b8eddf2d4ff89624e20d9ea3ad0c09f6 SHA-1: 49f78958d5cdf2990100ed30c14986d2e02e83bf SHA-256: 268d1f258b2ec2830896a1ab9bb06bb040f05543ea530beeb265589af9d1a9fb

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The embedded URL points to a suspicious domain, likely serving a phishing page or further malware. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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://midufefew.ru/wix?keyword=travel+team+chapter+4+summary
- https://dokakida.weebly.com/uploads/1/3/1/3/131380589/gilitumejozo_polikavu.pdf
- http://idealslimitalia-official.site/673747758621mmbt.pdf
- http://nutetuxiv.mygamesonline.org/kidebokazamakewedupobef.pdf
- http://storeplus.pro/why_wont_my_oven_heat_up_properly3tjet.pdf
- http://blockhcain.host/21516522936j17h6.pdf
- https://cdn-cms.f-static.net/uploads/4413713/normal_5fd3d0d367741.pdf
- https://cdn-cms.f-static.net/uploads/4377098/normal_604cd5eac33f9.pdf
- http://gufutaca1.xyz/fogukorubizobfirj4.pdf
- https://lelopotive.weebly.com/uploads/1/3/0/7/130738546/pazitigexumotunu.pdf
- https://vobudofokivelux.weebly.com/uploads/1/3/4/5/134599261/3828279.pdf
- http://agencymedia-ig.com/mp_board_10th_class_maths_book_solutl6031.pdf
- http://wirobigi.medianewsonline.com/moderetilefe.pdf
- http://flash-sar.online/frequency_polygon_worksheets51aia.pdf
- http://mavaxur.mywebcommunity.org/desoridej.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/girilifawuxi/live_chat_meet_app.pdf
- https://s3.amazonaws.com/dejolavubukugeb/apic-_em_applications.pdf
- https://s3.amazonaws.com/zetubakuz/cheats_para_clash_royale_android.pdf
- https://s3.amazonaws.com/tabobujimo/computer_repair_flowchart.pdf
- https://s3.amazonaws.com/wobuzisibal/we_don_t_talk_anymore_english_song.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0001135a.bin` `28756138a5f9506811a8530718946b5913746320beb89021042e5d60edceb728`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1135A	5372 bytes
`font_01_sfnt_off00012583.bin` `8b48010dff24d9e157a9a286ba54c5c9b5a0c934a713f3a7fcb5873d4758f5c5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12583	12056 bytes

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