Malicious PDF — malware analysis report

Static analysis result for SHA-256 3daf3f38fb386541…

MALICIOUS

PDF

78.2 KB Created: 2021-05-14 05:52:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 0dd9c0e3a7b74f21cb36c7263cb3f556 SHA-1: 295cf3202b4d9365c32aa48f6e91db2ff1c47d15 SHA-256: 3daf3f38fb3865419d14b3d95c7dcd58d377e759200523ace66722471b0b45ce
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. ClamAV and ML classifiers also flagged this PDF as malicious, indicating a phishing or trojan payload. No scripts were extracted, but the presence of external URIs suggests an attempt to download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://jacksth.ru/strik?utm_term=the+thrill+of+the+chase+map+pdf PDF link annotation
    • https://julavatevimire.weebly.com/uploads/1/3/4/6/134669339/riferawer.pdfIn PDF document text
    • https://dizakevusarebiz.weebly.com/uploads/1/3/4/5/134581037/pomizizawi-jijax.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392463/normal_60149122f3021.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470699/normal_6006f4da36eba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378155/normal_5fd1007d5b6d9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452374/normal_606503532eea5.pdfIn PDF document text
    • https://wixewolo.weebly.com/uploads/1/3/4/5/134577565/duvafebavosofexego.pdfIn PDF document text
    • http://wiruxenolap.22web.org/44204889677.pdfIn PDF document text
    • https://ramakizuwag.weebly.com/uploads/1/3/4/3/134321509/d7d6200a.pdfIn PDF document text
    • http://wetitafege.iblogger.org/18003348846.pdfIn PDF document text
    • https://bususofewibuju.weebly.com/uploads/1/3/5/3/135329568/jukinekufa.pdfIn PDF document text
    • http://volazasi.iblogger.org/adobe_premiere_pro_2019_free_download_reddit.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495985/normal_602b7935b0221.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kodipopujufipig/sitavazilomena.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/are_ikea_frying_pans_oven_safe.pdfIn PDF document text
    • http://bizivedigudo.epizy.com/do_i_need_to_watch_jack_reacher_movies_in_order.pdfIn PDF document text
    • https://s3.amazonaws.com/bulalowisu/bivegusak.pdfIn PDF document text
    • https://s3.amazonaws.com/dosipive/kaxuvakogowaze.pdfIn PDF document text
    • http://kodireso.epizy.com/30728912845.pdfIn PDF document text
    • http://xebowuruno.epizy.com/aap_se_mausiiquii_video_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/safenalavojuwu/3207515322.pdfIn PDF document text
    • http://mebabafa.epizy.com/dictionnaire_mathmatique_anglais_francais.pdfIn PDF document text
    • http://lisunamubeso.epizy.com/kutajakupuwanaravu.pdfIn PDF document text
    • http://xumizaxojumiko.epizy.com/31105536236.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f22b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF22B 5344 bytes
SHA-256: 98182ba59f744c9052bc6a82fa399b7b107760705dfcce776d1627693e846329
font_01_sfnt_off0001042b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1042B 11496 bytes
SHA-256: 3a08401d0c8960bc34b2cb17c206bcda258d08b898268967b713d199007dc450

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