Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e7612877ce2ff1f…

MALICIOUS

PDF

352.7 KB Created: 2021-01-11 21:27:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: f0deda0026ef5a0988a57e0c564f9aa9 SHA-1: 90a5cde52c7549e5703eaf650576e955a19b158a SHA-256: 9e7612877ce2ff1f838c62f844fe6f21cc30c438b4762778f83265221272e981
262 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including ML classification and ClamAV detection. It impersonates Apple and uses urgency lures to trick users into clicking embedded links, which lead to known malicious redirector infrastructure. The primary goal appears to be credential harvesting, likely by directing users to a phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9759

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://mozosuroje.weebly.com/uploads/1/3/4/4/134456199/filabux_fekiwanej.pdf.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://ggtraff.ru/123?utm_term=things+wheel+of+fortune In PDF document text
    • https://site-1229162.mozfiles.com/files/1229162/furniture_para_minecraft_beta.pdfIn PDF document text
    • https://mozosuroje.weebly.com/uploads/1/3/4/4/134456199/filabux_fekiwanej.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448113/normal_5fe06d654e73d.pdfIn PDF document text
    • https://ranaxeli.weebly.com/uploads/1/3/4/4/134478161/xerom.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423454/normal_5fd0dbe522fff.pdfIn PDF document text
    • https://tinalolovini.weebly.com/uploads/1/3/4/3/134371967/4526133.pdfIn PDF document text
    • https://site-1183169.mozfiles.com/files/1183169/6198597027.pdfIn PDF document text
    • https://site-1174576.mozfiles.com/files/1174576/road_trip_cast_where_are_they_now.pdfIn PDF document text
    • https://site-1177111.mozfiles.com/files/1177111/american_dad_apocalypse_soon_hack_2020.pdfIn PDF document text
    • https://bamaxasujobuz.weebly.com/uploads/1/3/4/3/134315865/8061356.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415740/normal_5ffc47d5ebf97.pdfIn PDF document text
    • https://site-1174999.mozfiles.com/files/1174999/gif_to_video_iphone_app.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417662/normal_5fe35d1a94636.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off00053ede.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53EDE 4860 bytes
SHA-256: 8f16b9e851e693927c5d878b41af7d1630ee81b882bab134371f3f0de2942ea0
font_01_sfnt_off00054f77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54F77 10648 bytes
SHA-256: 9fa3534b52e02aae33862a5895e34cc4eda1fbeb74402f4e16a483203ac6c73f