Malicious PDF — malware analysis report

Static analysis result for SHA-256 c96a20ca203f60cd…

MALICIOUS

PDF

73.2 KB Created: 2021-02-15 03:26:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 2b6ed445950198fe041c254f0cb8223e SHA-1: 127f497d6cec603737c6447c9bd898c3810f8dda SHA-256: c96a20ca203f60cd0ea6277becaa5c2b3fe5b241d3dbd6042140817d7a9bb00f
216 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The file is a PDF that impersonates iCloud, a tactic commonly used for credential phishing. It contains a link to a redirector hosted on weebly.com, which likely leads to a malicious payload or phishing page. Additionally, the PDF contains a large number of SEO-optimized links, suggesting it's part of a link farm designed to attract traffic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://bijadatexate.weebly.com/uploads/1/3/4/0/134013249/perame.pdf.
  • 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://maypoin.ru/wb?keyword=high%20credit%20in%20cibil%20report%20means PDF link annotation
    • http://lojasamericanasbr.com/adobe_photoshop_touch_apk_latest_versionskx6g.pdfIn PDF document text
    • https://bijadatexate.weebly.com/uploads/1/3/4/0/134013249/perame.pdfIn PDF document text
    • https://wajifisawebe.weebly.com/uploads/1/3/4/4/134480175/lasegoropavoketupagu.pdfIn PDF document text
    • http://copyrightprivacy.site/batman_the_enemy_within_switch_gameplay9xaij.pdfIn PDF document text
    • https://finijigif.weebly.com/uploads/1/3/2/6/132681422/74bb176cba57.pdfIn PDF document text
    • http://2gusevshop.space/geometric_template_powerpointyoatr.pdfIn PDF document text
    • https://jodegometokak.weebly.com/uploads/1/3/1/6/131606115/xibut-zelewije.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/kitakilesa/accessing_icloud_photos_on_android.pdfIn PDF document text
    • https://s3.amazonaws.com/domegagowevag/77223649232.pdfIn PDF document text
    • https://s3.amazonaws.com/widiku/unaccompanied_baggage_declaration_form_australia.pdfIn PDF document text
    • https://s3.amazonaws.com/zidenigad/built_with_science_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tirimofufemukat/98495210768.pdfIn PDF document text
    • https://s3.amazonaws.com/dagasopones/48805429826.pdfIn PDF document text
    • https://s3.amazonaws.com/bewibiwat/begigolumeditodul.pdfIn PDF document text
    • https://s3.amazonaws.com/matogapibelifiv/jomelilo.pdfIn PDF document text
    • https://s3.amazonaws.com/purawuma/amar_chitra_katha_full_collection.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_off0000e01c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE01C 5588 bytes
SHA-256: 037a99f16a1621847bd0a1b326cfe01df9900d1c3e51a3f05fafe8c512b770ab
font_01_sfnt_off0000f2e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2E8 10792 bytes
SHA-256: 692071c89f159a0e043722ad76ce6e648f3a22bac3f867d66346688533a40b6f

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