Malicious PDF — malware analysis report

Static analysis result for SHA-256 2071d67522e046c4…

MALICIOUS

PDF

75.0 KB Created: 2021-03-06 14:11:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: e866c62033df0b36b9a1ff16b5223dca SHA-1: 7dd32eba421fb0e0f3c139fa37b1cbb4ae404cfb SHA-256: 2071d67522e046c49ab2655e802932ed8fdb3d477a38e06fe0fe52820ceb1452
96 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. An external URI, 'https://gimoguvi.ru/strik?utm_term=technical+analysis+for+dummies+book', was extracted, suggesting a phishing or redirection attempt. Although no scripts were explicitly extracted, the presence of embedded URLs and the overall detection profile strongly indicate a malicious document designed to trick users into visiting a compromised site.

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://gimoguvi.ru/strik?utm_term=technical+analysis+for+dummies+book PDF link annotation
    • https://cdn.sqhk.co/fasixazijaz/fhaqjgQ/spirit_airlines_baggage_weight.pdfIn PDF document text
    • https://cdn.sqhk.co/zirigajer/opingeq/alien_war_the_last_day_hack_mod.pdfIn PDF document text
    • http://sipipewawezizuf.getenjoyment.net/playing_at_the_world_peterson.pdfIn PDF document text
    • https://cdn.sqhk.co/xazewizol/dzVfMm3/37909419368.pdfIn PDF document text
    • https://cdn.sqhk.co/vozaxodep/jvnxYgh/pagiruxil.pdfIn PDF document text
    • https://cdn.sqhk.co/winelolibug/dhhFtic/difimarodazisiliv.pdfIn PDF document text
    • https://cdn.sqhk.co/wadupaxi/giejhia/she_wants_me_dead_nightcore_1_hour.pdfIn PDF document text
    • https://cdn.sqhk.co/loziromegon/5mjjghg/14070267044.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416302/normal_603eb4768b18f.pdfIn PDF document text
    • https://cdn.sqhk.co/juduxijumijo/gilFVjd/drill_master_rotary_tool_kit_instructions.pdfIn PDF document text
    • https://cdn.sqhk.co/nomitusibop/aIJ5NR8/car_driving_school_simulator_android_1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450042/normal_601de69641c1d.pdfIn PDF document text
    • https://cdn.sqhk.co/kuzaxepigi/eNyNqhi/jolted_meaning_in_urdu.pdfIn PDF document text
    • https://cdn.sqhk.co/fogibadeku/hiEhhGd/52980256997.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381531/normal_5feba089da455.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/nuruvapozixix/what_does_a_data_specialist_do.pdfIn PDF document text
    • https://s3.amazonaws.com/vavebufevodutob/43588045380.pdfIn PDF document text
    • https://s3.amazonaws.com/nuselufuzo/what_are_low_carb_bagels.pdfIn PDF document text
    • http://rabatelekovufar.myartsonline.com/bagawe.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_off0000e8b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8B3 5516 bytes
SHA-256: d5d873ae40a009b63a7fd9401118d62ab01b64ae4b7c1de22e8da2a249b9861c
font_01_sfnt_off0000fb54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB54 10472 bytes
SHA-256: 54c23771b64fa81bb5f3b402b924187c669e8085ee09a00bf0bc3b7d42221dba

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