Malicious PDF — malware analysis report

Static analysis result for SHA-256 17fdfa9bcba3ad41…

MALICIOUS

PDF

229.3 KB Created: 2021-02-20 08:31:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: d40963270f7ba4345b05efdd437bf7f3 SHA-1: 5a4089df85a57739faffecf4b8d638ba8a91dbc5 SHA-256: 17fdfa9bcba3ad4182f2edca25d4d51374b908a4585f5ce39f6d1781c90e19ae
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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://crophysi.ru/strik?utm_term=tell+me+something+random+about+yourself+reddit PDF link annotation
    • https://bateworolod.weebly.com/uploads/1/3/4/3/134315912/4933474.pdfIn PDF document text
    • http://shtangennstutkupitseychas.xyz/wanoxizezimilesura0i293.pdfIn PDF document text
    • https://tewawabuse.weebly.com/uploads/1/3/1/4/131437503/povugakaxotenigawute.pdfIn PDF document text
    • https://rakatifuz.weebly.com/uploads/1/3/5/9/135964199/4c048615.pdfIn PDF document text
    • http://dazinifuxevoji.22web.org/501974063.pdfIn PDF document text
    • http://storeyou.store/ielts_general_reading_practice_testd4wwf.pdfIn PDF document text
    • https://pujelewi.weebly.com/uploads/1/3/4/0/134017294/3967286.pdfIn PDF document text
    • https://todumubisopid.weebly.com/uploads/1/3/5/3/135312552/89941.pdfIn PDF document text
    • https://zubikazosiz.weebly.com/uploads/1/3/4/7/134761183/poguvitidixim.pdfIn PDF document text
    • https://gemiporelowagi.weebly.com/uploads/1/3/0/7/130775846/6523767.pdfIn PDF document text
    • https://nutiniwe.weebly.com/uploads/1/3/4/8/134870290/3042080.pdfIn PDF document text
    • http://trastenmyqort.online/femegajikanfq2sm.pdfIn PDF document text
    • https://cdn.sqhk.co/vopokemib/y5yYib2/losagesoraxudusige.pdfIn PDF document text
    • https://panebelodoz.weebly.com/uploads/1/3/4/6/134619461/perulen.pdfIn PDF document text
    • https://worojipe.weebly.com/uploads/1/3/1/3/131382243/xafutu.pdfIn PDF document text
    • http://akmurzina.com/jefoxudinirqj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://guvekes.rf.gd/silent_auction_bid_cards_template.pdfIn PDF document text
    • http://lodanije.epizy.com/put_simple_past_tense_form.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_off0003485a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3485A 5512 bytes
SHA-256: c30c6708ea42c50211532c258635278a36670948be77505a79bbdc422ad51aeb
font_01_sfnt_off00035aed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35AED 13004 bytes
SHA-256: d522d0050084a2d792ecbeb4eff29c9eb31045cde5f5b20552277c4f9f0cd309

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