Malicious PDF — malware analysis report

Static analysis result for SHA-256 11917ba561781b5c…

MALICIOUS

PDF

154.7 KB Created: 2021-04-02 09:22:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 989cfef351996c4eb7eb331e2c5cb0b4 SHA-1: 2976d85b88164d19dd4f3d9580c568eb2cadc0c0 SHA-256: 11917ba561781b5c08202ff9e7cdb05b72451e64c443c684bd4856265b462bbd
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URI pointing to a suspicious domain, which is a common tactic for phishing or malware delivery. The document body, though heavily obfuscated, suggests a lure related to a housing guide, aligning with social engineering techniques.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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://xezojetit.ru/wix?keyword=north+by+northwestern+housing+guide+2019
    • https://cdn.sqhk.co/jotapepikota/gcozNEN/slingshot_technique_basketball.pdf
    • http://buzofenag.22web.org/what_is_newsmax_tv_ratings.pdf
    • https://nikubasixuza.weebly.com/uploads/1/3/0/7/130738960/97ff1e7dc.pdf
    • https://sibomimotilelib.weebly.com/uploads/1/3/4/2/134235458/badekozabo-tudonek.pdf
    • https://koxipaburejoxow.weebly.com/uploads/1/3/2/6/132681725/df751049.pdf
    • https://cdn.sqhk.co/zizenozi/jgjmgii/37324741585.pdf
    • https://cdn-cms.f-static.net/uploads/4384817/normal_60590be91107c.pdf
    • https://cdn.sqhk.co/nomuzali/sjhibha/57328002582.pdf
    • http://xalebiru.iblogger.org/nupozub.pdf
    • https://cdn-cms.f-static.net/uploads/4482418/normal_603158a5b0091.pdf
    • https://boserizozililo.weebly.com/uploads/1/3/2/6/132682878/addd027b.pdf
    • https://vidiguwases.weebly.com/uploads/1/3/4/3/134347373/ridobemipo.pdf
    • https://cdn-cms.f-static.net/uploads/4379603/normal_601a3d6a274e0.pdf
    • https://cdn.sqhk.co/javomekoru/MggphkI/94648587921.pdf
    • https://cdn.sqhk.co/mawejoxejobe/ibhgiet/70012791203.pdf
    • https://doxefifuz.weebly.com/uploads/1/3/0/9/130969363/3107783.pdf
    • https://rugadugunat.weebly.com/uploads/1/3/1/6/131606951/77835de43100d50.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://tadufadimokoje.epizy.com/alexandria_moulding_catalog.pdf
    • https://ef9d90ca-5811-4a1c-810e-75bcfae60121.filesusr.com/ugd/a33af7_77773137d49b41fa9c4ca9da4439e587.pdf?index=true
    • https://721ea522-a1f6-4523-903e-24b3c8014629.filesusr.com/ugd/5a834c_d7686222031c41f18aef258f9fbec465.pdf?index=true
    • http://levaduru.epizy.com/cara_lambiya_te_saheliyan_song.pdf
    • https://72cdfa97-b5fe-44cc-9aa9-3142b5aa642a.filesusr.com/ugd/ee32c9_406060357cb14a9f8d643d63670bcf6c.pdf?index=true
    • https://16564176-4c62-44d7-82e3-1dea6b832d73.filesusr.com/ugd/5e57cf_caa115d539d948cbb66c45fb11c6ab32.pdf?index=true
    • http://masovuv.rf.gd/basics_of_computer_for_competitive_exams.pdf
    • https://709e7e89-b264-4d73-b757-064736ed86f1.filesusr.com/ugd/f523c3_d44f3b8d233d43a081a40e0c7e89387d.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00020b04.bin
891622dac399695a1b98ba8bb6efcc55a8497e14d620416f429efe83f698c558		 pdf-font-stream PDF embedded font (sfnt) at offset 0x20B04 5512 bytes
font_01_sfnt_off00021dda.bin
78b195e5d298dd9da8be801df7d77be9d63a37f3d7fbb1a133cc2a4d98e9d6fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x21DDA 15324 bytes
font_02_sfnt_off00024e91.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E91 4324 bytes

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