Malicious PDF — malware analysis report

Static analysis result for SHA-256 e821a4feb9dcc01a…

MALICIOUS

PDF

74.1 KB Created: 2021-03-23 01:14:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 29fca5b786e754930811991ca197c7ee SHA-1: 11b03e06c8cb18151a10c0011e749bb414a96cca SHA-256: e821a4feb9dcc01ac843d17624bab1721e0ccaa54a8b13fde4e8f556d234ca7d
136 Risk Score

Malware Insights

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

The PDF document exhibits characteristics of an advance-fee scam, using lures related to awards or prizes. While no scripts were explicitly extracted, the presence of embedded URLs and the ML classifier's high confidence score indicate malicious intent. The document likely aims to trick the user into visiting a malicious URL to initiate a phishing or scam operation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://resalured.ru/aws?utm_term=how+to+write+a+presentation+speech+for+an+award
    • http://podifodosej.scienceontheweb.net/adyen_ipo_prospectus.pdf
    • http://datab.vip/kalki_purana_in_telugumg2t6.pdf
    • https://cdn-cms.f-static.net/uploads/4369525/normal_601ae04582287.pdf
    • http://kekijojovif.sportsontheweb.net/74975459041.pdf
    • http://totalcreditreport.info/pavetamulupipisunoboninisu4sz.pdf
    • http://andyhongdigital.com/game_of_thrones_book_set_1-72m19u.pdf
    • http://vebifitapex.mypressonline.com/peg_perego_john_deere_gator_xuv_550_manual.pdf
    • http://wejowadizabudex.mypressonline.com/the_sense_of_an_ending_movie_free_download.pdf
    • http://mukinumatonewo.getenjoyment.net/beechcraft_bonanza_f33a_maintenance_manual.pdf
    • http://idealica-uficialeitalia.website/argos_cataloguelhzfr.pdf
    • https://cdn-cms.f-static.net/uploads/4465691/normal_604a3b667706a.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/fixararololu/why_is_my_brother_sewing_machine_not_picking_up_the_bobbin_thread.pdf
    • https://s3.amazonaws.com/taguxif/89135093098.pdf
    • http://zikoliduxa.atwebpages.com/rapovebilegojorebit.pdf
    • https://s3.amazonaws.com/feseni/how_to_use_a_bissell_powerwash_carpet_cleaner.pdf
    • https://s3.amazonaws.com/kulinisokakewi/how_to_workout_shoulders_with_no_equipment.pdf
    • https://s3.amazonaws.com/xamapebonijos/memory_analyzer_tool_android.pdf
    • https://s3.amazonaws.com/wewiro/74768050606.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_off0000e448.bin
179ba81f602a638168767db7d592c84b759255867defdb1a0cac77adf9cb3c41
pdf-font-stream PDF embedded font (sfnt) at offset 0xE448 5264 bytes
font_01_sfnt_off0000f63d.bin
c08927fb7fc00da1d96bf4bea944344de5986b4ff4fbd863f1aea37f8ba38137
pdf-font-stream PDF embedded font (sfnt) at offset 0xF63D 10728 bytes