Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a34ef6018b2f9ee…

MALICIOUS

PDF

74.2 KB Created: 2021-03-02 23:28:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 62f6b48f311368c5221e325fe0e79939 SHA-1: 64ad186af3c9fab818b0e973bf71109988b9f804 SHA-256: 0a34ef6018b2f9ee8ca6c587391240705f44ed1ba82c234f4888ba8bf52bc67a
126 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The document body, though heavily obfuscated, appears to be a lure related to a BMW TFT manual, directing users to external URLs. The presence of numerous external URIs, many hosted on disposable domains, strongly suggests a phishing or malware distribution attempt.

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://baarspo.ru/wix?keyword=bmw+tft+manual PDF link annotation
    • http://unreguezff.rest/life_coach_marketing_tipso8s5j.pdfIn PDF document text
    • http://vevaxogejaz.scienceontheweb.net/bolisekizojirowud.pdfIn PDF document text
    • http://test123test.xyz/excell_xr2600_pressure_washer_troubleshootingi6drg.pdfIn PDF document text
    • http://gebuhrenfrei-mein.com/what_is_relationship_between_china_and_taiwanah1wr.pdfIn PDF document text
    • http://frankiearvelo.com/party_attendance_list_templateya96i.pdfIn PDF document text
    • http://zespodsvetkoy.site/mujudepefitulinulesakigoz30bs.pdfIn PDF document text
    • http://itanah.space/how_do_i_reset_my_voicemail_message_on_iphonemrrfc.pdfIn PDF document text
    • http://muzhskoizhurnal.ru/how_to_regenerate_a_water_softenerytawr.pdfIn PDF document text
    • http://biolinkus.me/ropobirotumamojadevopemk3xmq.pdfIn PDF document text
    • http://dlkmvkoenv.info/commission_based_contract_templatee31ay.pdfIn PDF document text
    • http://draiwenstore.online/womozaronikixofopivyf4v9.pdfIn PDF document text
    • http://triple-doska4.club/baby_bestiary_2_download_free4bw8q.pdfIn PDF document text
    • http://tryraisins.pro/celestial_island_sheet_musictv95m.pdfIn PDF document text
    • http://decideyouself.fun/how_to_capture_screenshot_video_on_android2d2kh.pdfIn PDF document text
    • http://raffle.website/39559305209u6j7v.pdfIn PDF document text
    • http://fishland.store/zutifutn4opn.pdfIn PDF document text
    • http://henrysavbr.site/is_psychology_based_on_factsb36ou.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://kemexulirejaror.rf.gd/interesting_questions_and_answers_about_animals.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dc48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC48 4384 bytes
SHA-256: ba465f3587d6794f92bd625de7ecd877f1af48a83a2f3ccff0c6c2b1dfb9c66f
font_01_sfnt_off0000eb1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB1C 10032 bytes
SHA-256: 322f25ce2fa1f9196a78b974652f455c98d53f9c587142d7b8a4422160a9d9b2
font_02_sfnt_off00010d75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D75 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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