Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b7721a7083a1f11…

MALICIOUS

PDF

80.1 KB Created: 2021-04-08 04:49:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 51ebd6deb15d9db0609341934ff90961 SHA-1: d5807aaabe6e1aaebe2b3098609ec2158f28a842 SHA-256: 0b7721a7083a1f110cb74954a2303af6a43e92a78ed5a49d75a88b7843e7a082
96 Risk Score

Malware Insights

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

This PDF document is identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URI pointing to 'https://nipisod.ru/wix?keyword=harry+potter+and+the+goblet+of+fire+ar+test+answers+quizlet', likely intended to redirect the user to a malicious site. The document's structure and embedded URLs suggest it's part of a phishing campaign designed to trick users into visiting a compromised website.

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://nipisod.ru/wix?keyword=harry+potter+and+the+goblet+of+fire+ar+test+answers+quizlet
    • https://jedopebo.weebly.com/uploads/1/3/4/8/134889916/bowib.pdf
    • https://fimozafovobas.weebly.com/uploads/1/3/2/7/132741130/4878918.pdf
    • https://jimivoxoresovi.weebly.com/uploads/1/3/4/3/134311124/sijapugeti.pdf
    • https://static.s123-cdn-static.com/uploads/4530457/normal_60081f30ecdf5.pdf
    • https://cdn-cms.f-static.net/uploads/4403270/normal_604af91d29797.pdf
    • https://wilegefozuf.weebly.com/uploads/1/3/4/3/134399327/namowuz-guzewitebobev-jivizo.pdf
    • https://cdn-cms.f-static.net/uploads/4385412/normal_600e13550c8fc.pdf
    • https://pukuxenusafo.weebly.com/uploads/1/3/4/7/134711282/1688918.pdf
    • https://cdn-cms.f-static.net/uploads/4379603/normal_6013232921dd7.pdf
    • https://cdn-cms.f-static.net/uploads/4462726/normal_602101743f97b.pdf
    • https://static.s123-cdn-static.com/uploads/4480899/normal_5feb446ded808.pdf
    • https://static.s123-cdn-static.com/uploads/4426413/normal_5ff23781bddac.pdf
    • https://xugimitedekilim.weebly.com/uploads/1/3/1/4/131482884/08d791eacf6.pdf
    • https://cdn-cms.f-static.net/uploads/4410952/normal_60592fb2e98b5.pdf
    • https://fifimijo.weebly.com/uploads/1/3/4/7/134748793/gekipisemu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/savifin/papazudalexosamawemilofu.pdf
    • https://s3.amazonaws.com/petubapizo/wofimiwakodevofusonexuwi.pdf
    • https://s3.amazonaws.com/vukujidor/binodini_rai_full_song.pdf
    • https://s3.amazonaws.com/nevowimo/bluetooth_software_for_windows_10_free_download_filehippo.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_off0000f64e.bin
56d992ed4a284be6ae6b6decaf7fca2faf60d3e85dcf3719f5b130b47bd87832
pdf-font-stream PDF embedded font (sfnt) at offset 0xF64E 5776 bytes
font_01_sfnt_off00010a08.bin
4bf9e368444835a0017d8201839bfaf60b7c1d8745fbaa726fdcf73519d09742
pdf-font-stream PDF embedded font (sfnt) at offset 0x10A08 12060 bytes