Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd6f76aaeaa044db…

MALICIOUS

PDF

75.6 KB Created: 2021-03-12 03:12:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0ec43db31b9f60460b3e65e17e67a891 SHA-1: 818106fb56ff60392111d633902d9928d67f2e5b SHA-256: bd6f76aaeaa044db4dd80d652469aeb24b16e28dcea8e0eb7f3efc68c92bfca6
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL. Static analysis and ML classification indicate malicious intent, with ClamAV specifically identifying it as a phishing trojan. The embedded URL likely leads to a malicious site designed to exploit the user.

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://leonvi.ru/wix?keyword=nyc+notary+test+study+guide
    • https://static.s123-cdn-static.com/uploads/4459188/normal_6007e19d417cf.pdf
    • http://trudogoliya.online/pro_series_drag_racing_pro_street_mustang_tune0mjdi.pdf
    • https://static.s123-cdn-static.com/uploads/4417659/normal_60050cc7e9330.pdf
    • http://vafakewa.iblogger.org/midivabojirefufajoni.pdf
    • http://ligazilafibab.22web.org/multiplying_dividing_rational_expressions_practice_answers.pdf
    • http://ar-foto.art/xafewepobimidakokogoliz3s46g.pdf
    • https://cdn-cms.f-static.net/uploads/4491936/normal_5fdba96db8162.pdf
    • https://cdn-cms.f-static.net/uploads/4491451/normal_5fd148439cbaa.pdf
    • http://medesutaduj.22web.org/smart_tv_android_sony_49.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://kiwozoma.epizy.com/75816033689.pdf
    • https://uploads.strikinglycdn.com/files/5c5ae2c0-3564-46ec-8284-a9173680a61e/30589761932.pdf
    • https://uploads.strikinglycdn.com/files/68ca6a7f-65f4-4c19-b9f7-0e19d4fec22e/mepokelijolojewup.pdf
    • http://xazitew.epizy.com/63rd_bpsc_advertisement.pdf
    • http://wesonujojamoga.epizy.com/tamilrockers_2018_tamil_movies_hd_720p.pdf
    • https://uploads.strikinglycdn.com/files/46b0e381-e1e0-4b3c-b7ac-3fcf3c41fa01/49536022587.pdf
    • https://uploads.strikinglycdn.com/files/a462ae38-70f8-4adf-ba8f-ec3221ad5d4f/how_to_fix_amp_error_on_pioneer_radio.pdf
    • http://jozomituj.epizy.com/88696339068.pdf
    • http://giwofigu.epizy.com/ribasizidod.pdf
    • https://uploads.strikinglycdn.com/files/40d1123f-6563-474f-a05f-ca2cdc902621/wd_my_passport_ultra_reformatting_for_mac_os_x.pdf
    • http://porekeb.epizy.com/padovijaravotatup.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_off0000e97e.bin
2804d8eaca76e32893abb6d108c3f65ee1de12fb525027641f64aff36aa7894d
pdf-font-stream PDF embedded font (sfnt) at offset 0xE97E 5144 bytes
font_01_sfnt_off0000fb1a.bin
e7b63c92dc0aaa9fde86fcd2143f7412fcfdc865a1daca476331d01b5ffbcbea
pdf-font-stream PDF embedded font (sfnt) at offset 0xFB1A 11228 bytes