Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e05609ddd518085…

MALICIOUS

PDF

82.8 KB Created: 2021-03-06 19:24:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 463e44c8787d4d0955e2799537f00dc0 SHA-1: 7eb571f3fee01032ec96de3ed4ad7207ab409f09 SHA-256: 7e05609ddd518085b06b54b9659a15f92ef9c5aae77cd60c0084d887e50e8b74
96 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains an external URI pointing to a suspicious domain, likely intended to host a phishing page or malware. The document body appears to be obfuscated or corrupted, but the presence of the external URI suggests a phishing or credential harvesting attempt.

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://soxebez.ru/wix?keyword=ryujin+jakka+release+command
    • http://ulekschool.online/kozuvipotaxudo03ux5.pdf
    • http://magnetfix.store/cost_accounting_powerpoint_templatesjl07u.pdf
    • http://mosebuzixat.mywebcommunity.org/analisis_del_libro_apocalipsis_de_la_biblia.pdf
    • http://mikazuxo.mypressonline.com/texoluvefofofesu.pdf
    • http://freshnatur.fun/67950121679wb627.pdf
    • http://wudebakafepi.mypressonline.com/mary_shelley_frankenstein_summary.pdf
    • http://susurrus.space/galaxy_wallpaper_computerpk141.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://jezevenakos.myartsonline.com/towuxokepibilu.pdf
    • https://s3.amazonaws.com/zukogi/85473075425.pdf
    • https://s3.amazonaws.com/sazariwapa/athens_map_english.pdf
    • https://s3.amazonaws.com/fezenur/anecdotal_record_format_in_nursing.pdf
    • https://eed7fa7e-4f31-4ba6-8269-e73f07ac74c5.filesusr.com/ugd/93374d_20ba74b76c30489b9fae2eb87e3c1917.pdf?index=true
    • https://s3.amazonaws.com/rubidokezive/harry_potter_movies_collection.pdf
    • https://s3.amazonaws.com/mikibetiv/google_converter_to_word_file.pdf
    • https://s3.amazonaws.com/gopifu/car_deed_of_sale_philippines_template.pdf
    • https://a54de82d-0003-4787-801b-d7ee719c780a.filesusr.com/ugd/8d57bd_d85b85053d754c28b15d0c36b581acaa.pdf?index=true
    • https://s3.amazonaws.com/xewamejixolefaj/guidelines_new_definition_of_default.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_off0000f1bc.bin
3f28fb5070f58957fa63c1445820bce83a0c432056cf8c12db97bbe9281cd587
pdf-font-stream PDF embedded font (sfnt) at offset 0xF1BC 6656 bytes
font_01_sfnt_off00010870.bin
ee90c0cd5533f54864595eec8be242e783e7d82f2b12b812313b016aecf6e80b
pdf-font-stream PDF embedded font (sfnt) at offset 0x10870 5336 bytes
font_02_sfnt_off00011a93.bin
5c594bbfda08041117c19555bd138da458a0e8fc3ee40d1e3a45b6a5b0c2a852
pdf-font-stream PDF embedded font (sfnt) at offset 0x11A93 10392 bytes