Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8e9328c92e5a66d…

MALICIOUS

PDF

92.6 KB Created: 2021-03-16 08:12:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5456265c2c022581fe8bf4073f8a8ace SHA-1: ba5d7868a8af0a55a65f61d3da83edf2d515a0b2 SHA-256: b8e9328c92e5a66d4c96854c27c02bed0e668e8c64e2ab66d5c993083e911f97
136 Risk Score

Malware Insights

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

The sample was identified as malicious by ClamAV and an ML classifier, and it contains heuristics indicating an advance-fee scam lure. The document body, though partially corrupted, suggests a lure related to downloading a Python programming book, which is used to present an external URI. This URI likely leads to a phishing or malicious download site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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/award?keyword=python+programming+book+pdf+download
    • https://cdn-cms.f-static.net/uploads/4502178/normal_5fe825e19ddbe.pdf
    • https://tafubevodila.weebly.com/uploads/1/3/4/0/134016741/giduridozep_susujopefolele_xujom.pdf
    • http://thelandofbadideas.com/what_marvel_games_are_on_xbox_one063dy.pdf
    • http://profapp.pro/bamelifixoo5lle.pdf
    • https://ferutijuze.weebly.com/uploads/1/3/1/8/131856408/08e9b7d2a4d4.pdf
    • http://homearfes.com/best_online_technical_writing_certificate_programscm3ea.pdf
    • https://static.s123-cdn-static.com/uploads/4452382/normal_5ff25d0fd9496.pdf
    • https://xorewodanuvidiw.weebly.com/uploads/1/3/1/3/131381095/devojisajelela.pdf
    • http://com-connexion.xyz/58310988804pfms7.pdf
    • https://cdn-cms.f-static.net/uploads/4445750/normal_6021d363abf75.pdf
    • https://cdn-cms.f-static.net/uploads/4370317/normal_601029cc494bc.pdf
    • http://onlinetyz.xyz/is_500_mbps_fast_enough3uemz.pdf
    • https://cdn-cms.f-static.net/uploads/4481831/normal_602802d70043c.pdf
    • https://jezukiporewuge.weebly.com/uploads/1/3/4/6/134649506/e944f65841.pdf
    • https://static.s123-cdn-static.com/uploads/4474222/normal_600634f85fd37.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://rilexukalenenig.rf.gd/soundlogic_bluetooth_speaker_manual.pdf
    • https://uploads.strikinglycdn.com/files/374fc978-3697-4e8f-bb5f-e7061a9c1e34/26328277148.pdf
    • https://uploads.strikinglycdn.com/files/fbfe9cff-7291-4c7f-b549-7b6e08e898bd/cuisinart_ice-30bc_pure_indulgence_2qt.pdf
    • http://nixevafuzija.epizy.com/fifomawalagot.pdf
    • https://uploads.strikinglycdn.com/files/9818de81-36df-474a-b4e8-70337177b35c/how_to_use_a_hoover_power_path_pro_xl_carpet_washer.pdf
    • https://uploads.strikinglycdn.com/files/bff407cf-20fe-4b47-a011-2cc0d0a45045/pipe_fitters_near_me.pdf
    • http://rowabereduxafu.epizy.com/74859269002.pdf
    • http://xofududegotu.epizy.com/is_coclo42_acidic_basic_or_neutral.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011277.bin
57731ac0e5449e3cd94d0379fa87828c6d4cc6d918b6d7e3d6750fff1bf141b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11277 5676 bytes
font_01_sfnt_off000125bc.bin
80a15adb4832fb3c3767013a2728adaf14938fe27a3d21adc56adfd6eac405a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x125BC 11472 bytes
font_02_sfnt_off00014d04.bin
bdd1b0dd540536d2e3a6afb30b0bd831757d201e17d116d3317765535746ce1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14D04 16480 bytes

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