Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b1c475304cd1951…

MALICIOUS

PDF

76.1 KB Created: 2021-03-25 22:15:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 96e919670979bff12c427505c7cc2ab1 SHA-1: ba21114190cc2471aadd3738e485b692a6c268f0 SHA-256: 8b1c475304cd1951ab0f349cccaf7ce9cdf156831231253116ae6e13e9e724f9
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The sample 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 uses deceptive language related to prizes or parcels to trick the user. The embedded URL `https://xezojetit.ru/123?utm_term=credit+agricole+polska+annual+report` is a primary indicator of a phishing or scam attempt, likely leading to further malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://xezojetit.ru/123?utm_term=credit+agricole+polska+annual+report
    • http://viza.expert/jipogudukqyohp.pdf
    • https://cdn-cms.f-static.net/uploads/4387825/normal_5fd2ffa346981.pdf
    • http://xoluzezo.22web.org/caffitaly_s24_instruction_manual.pdf
    • http://dutusejutax.22web.org/fales.pdf
    • http://rixugogalide.22web.org/cyberpowerpc_keyboard_and_mouse_not_working.pdf
    • https://cdn-cms.f-static.net/uploads/4393502/normal_5fe66a138e633.pdf
    • https://static.s123-cdn-static.com/uploads/4424010/normal_5fe4d880abe54.pdf
    • https://static.s123-cdn-static.com/uploads/4401558/normal_5ffadd2e6bb5c.pdf
    • https://cdn.sqhk.co/dufolatik/ffidH9e/perojigudi.pdf
    • http://trokot-roznica.xyz/29534531482c9od8.pdf
    • https://cdn.sqhk.co/sulugedako/9iehrwH/olvidarte_nunca_rock_urbano.pdf
    • https://cdn-cms.f-static.net/uploads/4374203/normal_60465527d4715.pdf
    • http://cheapkeys.site/mesajobuvogexujije6xsm8.pdf
    • http://salet.store/gunozafenaresufuzewip19zu7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/6a84cc06-b9a8-4e1a-8cdd-1d61a2c6606c/the_great_gatsby_vocabulary_quizlet_chapter_1.pdf
    • https://7915398d-c9c2-4241-abdb-40cf742e4b8d.filesusr.com/ugd/d4df0f_1b5007f739ce4f3ebdc9ebc263d6d02c.pdf?index=true
    • https://d2faa26e-66ca-44cd-8f84-883624a71019.filesusr.com/ugd/dbbfd0_93c8578cd407470bbe3eb33032cbf270.pdf?index=true
    • http://ripikeze.rf.gd/is_push_pull_split_the_best.pdf
    • https://3d7304b5-8527-495f-b913-615d6f357a43.filesusr.com/ugd/ef7486_859bd190c49f4931a5ba05f888fe2e14.pdf?index=true
    • https://uploads.strikinglycdn.com/files/490af6bf-9ffb-4387-989f-934ea3d159b6/thrawn_trilogy_reading_order.pdf
    • https://eb9d0a7c-f241-4274-9260-18def620c3fd.filesusr.com/ugd/796b85_e628ae4f51cb43cba5287922f4630c9f.pdf?index=true
    • 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_off0000eb63.bin
3e6f754b933a75e5b774d5e8f57d190bf45311663a48c6ff28d27018f5dc0d8e
pdf-font-stream PDF embedded font (sfnt) at offset 0xEB63 5212 bytes
font_01_sfnt_off0000fd2f.bin
41bb59baff43b53e9a4d67cb6e199ba3293b2ee68d9b243ca4d70e77757d40fb
pdf-font-stream PDF embedded font (sfnt) at offset 0xFD2F 11344 bytes