Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbd9b8463afda261…

MALICIOUS

PDF

164.7 KB Created: 2021-03-23 17:35:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 756fa20ea1ec012611434e4788377372 SHA-1: 94ca743a081601619e34ee3afc213b32c0132341 SHA-256: cbd9b8463afda2618b494c99ae133ec5165d51e6f0cdcd304379a827225c2e1a
136 Risk Score

Malware Insights

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

The file is identified as malicious by multiple heuristics, including a high-confidence ML classifier and ClamAV detection. The 'SE_ADVANCE_FEE_SCAM_LURE' heuristic indicates the document's content is designed to trick users into believing they have won a prize or are due a parcel, a common tactic for advance-fee fraud. The embedded URL points to a suspicious domain, likely serving as a lure to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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/strik?utm_term=why+are+books+censored+in+fahrenheit+451
    • https://cdn-cms.f-static.net/uploads/4474752/normal_5fe9c4e9b0f38.pdf
    • https://cdn.sqhk.co/duzoxibuf/6yEidY7/pandemic_unemployment_assistance_pa_extension.pdf
    • http://fuxarirudutosas.iblogger.org/my_garbage_disposal_leaks_from_bottom.pdf
    • http://letufemew.22web.org/mercruiser_4.3_carburetor_4bbl.pdf
    • http://bodugupuk.22web.org/how_to_install_free_windows_10_on_new_pc.pdf
    • http://morasufas.iblogger.org/workday_rising_2017.pdf
    • http://ropibolexi.iblogger.org/how_to_use_garmin_etrex_20.pdf
    • https://cdn.sqhk.co/dozelodet/hdaksha/all_electronic_components.pdf
    • https://pavibizad.weebly.com/uploads/1/3/0/7/130740264/d5036e1d1.pdf
    • https://cdn.sqhk.co/sevafeluba/fowia4x/29618360266.pdf
    • https://static.s123-cdn-static.com/uploads/4489843/normal_5fcbfc5f86133.pdf
    • https://lidafeli.weebly.com/uploads/1/3/4/6/134683499/c4cf8f509.pdf
    • https://cdn.sqhk.co/wubunepan/hLqgfjd/mitibotaf.pdf
    • https://cdn.sqhk.co/jaguwubax/000SC9H/govutodaperexexaxaxazopar.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://memezuxel.epizy.com/68646000270.pdf
    • http://nalakakowim.epizy.com/silicone_rubber_sheet_uk.pdf
    • http://nipixexit.rf.gd/ch_play_cho_ipad_1.pdf
    • http://gixogofano.rf.gd/gimisavedogam.pdf
    • http://tozurunoxutasu.epizy.com/gejabuzuxizolipenitid.pdf
    • http://pezazutosoxa.epizy.com/227192007.pdf
    • http://wereguvepowu.epizy.com/jemeruni.pdf
    • http://jatujij.rf.gd/nedizivelanuralopunoli.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_off00024776.bin
5cd9a50c6ee3fece729e9866c3fd7ff949f2ed83b98c29278fbd23dc3aa44805		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24776 5660 bytes
font_01_sfnt_off00025adb.bin
6d7be3458a9cd1dec29c5807c8b8ee62d94abd047e4d5cb8cb631fb15cc8fd60		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25ADB 12656 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.