Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5eb03d85bea6f0d…

MALICIOUS

PDF

80.7 KB Created: 2021-03-15 15:13:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ce50b17d2512339c5aa350cb4d716718 SHA-1: c8f44ec9600353c14896fcb1c65d4c43711e2467 SHA-256: c5eb03d85bea6f0d6fb4f1279ba1dc46054f8730cb63624341fc04b47e5c527c
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and a machine learning classifier, indicating a high likelihood of malicious intent. The document contains an embedded URL pointing to a suspicious domain, which is likely used to deliver a secondary payload or facilitate phishing. The document body, though heavily obfuscated, suggests a lure related to security policies and device usage, consistent with phishing or social engineering tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://pelibifir.ru/wix?keyword=security+policy+prevents+use+of+camera+note+10
    • https://cdn.sqhk.co/rogevuzazi/y0EyjcN/the_plague_house_m._d.pdf
    • http://bupitubegedew.getenjoyment.net/37732135582.pdf
    • http://xafesuvorolivig.scienceontheweb.net/2709502486.pdf
    • https://static.s123-cdn-static.com/uploads/4486036/normal_5ff81e8a884ab.pdf
    • https://cdn-cms.f-static.net/uploads/4379222/normal_603338e718107.pdf
    • http://xosuxifareg.22web.org/washington_state_football_depth_chart_2018.pdf
    • http://valuburikodajad.medianewsonline.com/wutubuvorabijozesogubibum.pdf
    • https://cdn.sqhk.co/binisomomup/jEghjdo/worship_songs_2020_bethel.pdf
    • https://cdn-cms.f-static.net/uploads/4452148/normal_60340973ad2fe.pdf
    • https://cdn-cms.f-static.net/uploads/4502920/normal_600e22e534119.pdf
    • http://lagulatobir.iblogger.org/womitexomavubarukidus.pdf
    • https://cdn.sqhk.co/gadukupuwe/dIjiSZb/vetipaxufef.pdf
    • https://cdn.sqhk.co/dujovibipu/fKjhgg3/dream_island_codes_halloween.pdf
    • https://cdn.sqhk.co/takejirasomu/gjjLWii/king_ball_playground_game.pdf
    • http://fisujerekuvij.getenjoyment.net/jejereli.pdf
    • https://cdn.sqhk.co/negapevu/hi9KDih/79876721648.pdf
    • http://deliwubavamir.mypressonline.com/proofs_involving_similar_triangles_worksheet_answer_key.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://gejonutopufone.rf.gd/66593200550.pdf
    • https://s3.amazonaws.com/feliso/55339896327.pdf
    • https://s3.amazonaws.com/zesixefe/the_office_season_3_episode_8_transcript.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f11d.bin
7a9ce8e78381a42945c23a428d1f4c90c6f0fea0d0787ca76ba4dcab132b6604
pdf-font-stream PDF embedded font (sfnt) at offset 0xF11D 5500 bytes
font_01_sfnt_off000103c6.bin
fe06a4d402bc75ee238aff1e3d82864f1a80ab99a1d9f479a734c58893e044fe
pdf-font-stream PDF embedded font (sfnt) at offset 0x103C6 10388 bytes
font_02_sfnt_off0001274f.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x1274F 4324 bytes