Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ff9e7aeb6bb784e…

MALICIOUS

PDF

76.6 KB Created: 2021-04-03 13:59:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 34a6a141a0965eded73c50b3a6617ebe SHA-1: cc5a844be53e28d3c038cf9379886e47350ffa49 SHA-256: 2ff9e7aeb6bb784e81c52357d1c14b7998dc3e6ccbe780fa3178c7a848c55def
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing attempt. It contains an embedded URI pointing to a suspicious domain, likely intended to deliver a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, suggests a lure related to tax incentives.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://mezovuduw.ru/award?keyword=tax+incentives+for+exporters+pdf PDF link annotation
    • http://nopezimugabotik.mygamesonline.org/how_deep_can_you_go_with_padi_advanced_open_water.pdfIn PDF document text
    • http://fazejajogavu.medianewsonline.com/haier_portable_air_conditioner_replacement_hose.pdfIn PDF document text
    • https://cdn.sqhk.co/vuvapolaxaj/jjifYha/staff_handbook_template_nz.pdfIn PDF document text
    • http://sijiwepi.mypressonline.com/rejevumezonuf.pdfIn PDF document text
    • https://cdn.sqhk.co/lididiregi/hteDSih/video_player_hd_apk_pro.pdfIn PDF document text
    • http://potuduwatolebu.mywebcommunity.org/kawuwe.pdfIn PDF document text
    • https://cdn.sqhk.co/godezixibufo/SiWTlgh/parachute_health_sign_up.pdfIn PDF document text
    • http://xufonewujisos.scienceontheweb.net/bobo_doll_experiment.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xapota/w3schools_angularjs_tutorial_free_download.pdfIn PDF document text
    • http://fedonefekipide.myartsonline.com/18925784818.pdfIn PDF document text
    • https://s3.amazonaws.com/zuponefi/vabonajifolet.pdfIn PDF document text
    • https://s3.amazonaws.com/murudute/jeep_wrangler_jk_parts_catalog.pdfIn PDF document text
    • http://jeximojela.myartsonline.com/annihilation_of_caste_malayalam.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/58961889917.pdfIn PDF document text
    • https://s3.amazonaws.com/putelekireza/flea_dirt_on_white_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/kexamoxusinixu/32593701120.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ebe5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBE5 5192 bytes
SHA-256: b83223a7feb57ef2abe862e54e2b6b9876c8c35db8e2e46e808ddf76e309b987
font_01_sfnt_off0000fdac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDAC 11204 bytes
SHA-256: bd2dc694c6568d2da0e601148fc855b8a7304ec0b039c4f83461b4398ad8f404

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