Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce06dea5e9d4e1ee…

MALICIOUS

PDF

126.3 KB Created: 2021-03-04 06:49:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 22a4284c6df1daeefed9d12683217426 SHA-1: e406b4765765114f038ac5fa33460e5a48fdcfbb SHA-256: ce06dea5e9d4e1ee42dc73e5db18f4db074cf345d5c5cda2e239ca859108b445
136 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, and it contains heuristics indicating an advance-fee scam lure. The document body, though truncated and obfuscated, contains text related to 'Breaking dawn 4 release date' and application metadata, suggesting a lure to trick users into clicking embedded URLs. The presence of multiple external URIs, including one pointing to 'pelibifir.ru', further supports the phishing and scamming intent.

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://pelibifir.ru/123?utm_term=breaking+dawn+4+release+date
    • http://fofiwafajelerax.sportsontheweb.net/39156855333.pdf
    • http://insta-sale.site/putomuzujozol1fk89.pdf
    • http://filfex.ru/28185775791eutvn.pdf
    • https://static.s123-cdn-static.com/uploads/4367912/normal_5fc9bc4b0e5b0.pdf
    • http://pakawuwujawo.getenjoyment.net/why_is_washing_your_face_so_important.pdf
    • http://womenita.fun/togozalexudiwarigikua4unm.pdf
    • http://laluwaraselolar.mywebcommunity.org/where_is_samsung_a51_manufactured.pdf
    • http://rowexusaje.mypressonline.com/algebra_eoc_practice_test_1.pdf
    • http://lezigovedavide.getenjoyment.net/windows_10_bash_python_command_not_found.pdf
    • http://megalit-korolev.ru/monitorizacion_de_signos_vitalesc08v5.pdf
    • https://cdn-cms.f-static.net/uploads/4386621/normal_603fef1844ebc.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://pusapovewazigu.onlinewebshop.net/kitchenaid_stand_mixer_cover_diy.pdf
    • http://sipanokule.onlinewebshop.net/attack_on_titan_season_1_characters.pdf
    • http://limepupotof.epizy.com/android_games_to_play_with_friends_offline.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_off0001b0c3.bin
9d35c171efaaf9276f9dc38314b7ef6133067bdd95b7e82ef99edf88a4b827dd
pdf-font-stream PDF embedded font (sfnt) at offset 0x1B0C3 5284 bytes
font_01_sfnt_off0001c2ea.bin
1caa40314c6681a2aab9716e4b47f37e4c9caae14e758acdc3453e1e1fe64363
pdf-font-stream PDF embedded font (sfnt) at offset 0x1C2EA 12540 bytes