Malicious PDF — malware analysis report

Static analysis result for SHA-256 a374453b0f7240dd…

MALICIOUS

PDF

79.9 KB Created: 2021-02-02 09:15:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: e87783b0a1398877327ab15833a17d36 SHA-1: aca82c3d518c849421ced987883ab9764e5b4fb8 SHA-256: a374453b0f7240dd9f8ea32204be7b9dfb23906b41c50d402ba2e0efc80997f0
96 Risk Score

Malware Insights

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

This PDF document was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, appears to be a lure related to movie audio songs, suggesting a social engineering tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://jacksth.ru/aws?utm_term=telugu+aparichithudu+movie+audio+songs PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4414152/normal_5fd06c112c4de.pdfIn PDF document text
    • http://appless.space/garozudogivudajupuwx8ao.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370054/normal_5fe7ad939fc70.pdfIn PDF document text
    • https://cdn.sqhk.co/wadalibituge/izhbpje/dularuxasafugiwi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410006/normal_5fd6277a9b4c2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384028/normal_5fdff83c2caa8.pdfIn PDF document text
    • http://coolstudent.space/ae_dil_hai_mushkil_movie_download_123mkvofbww.pdfIn PDF document text
    • https://cdn.sqhk.co/tisumusef/3ihv3fA/tuxamujexe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489415/normal_5fd251fc20573.pdfIn PDF document text
    • https://cdn.sqhk.co/rolidazi/NFhfyib/zeruje.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475571/normal_5fdb997167abd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381318/normal_5fed76534ad1c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/luborinizu/41509196790.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e14c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE14C 5380 bytes
SHA-256: 81fcb7fca3a25da95a25bf062a083d0847a95c6dd8642ed02c7afdb153ad7ff8
font_01_sfnt_off0000f36e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF36E 3720 bytes
SHA-256: b91f3c26f37c28538ed09035cbea6f9221827f1e30b50c452f08cc820bcc167b
font_02_sfnt_off0000fed1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFED1 11028 bytes
SHA-256: f2bbe243810b8e6eddc7cc5b1cf4403afb0dd4bf510d7b75b176ea1bae055d09
font_03_sfnt_off00012457.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12457 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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