Malicious PDF — malware analysis report

Static analysis result for SHA-256 69e0fb13b7a001cc…

MALICIOUS

PDF

75.1 KB Created: 2021-02-19 09:46:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 6684b42993bad29aaf7a73d8d1ce72cc SHA-1: c7ebfcecb7529cec8f85e8d7ebd2f5319cf8067a SHA-256: 69e0fb13b7a001cc49e6967471209a3ecef448893d045a1dfdccf6fe04639130
176 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The presence of numerous external links and a callback lure suggests an attempt to redirect users to malicious sites or engage them in a phishing conversation. While no scripts were explicitly extracted, the PDF structure and link farm indicate a sophisticated phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://jottigo.ru/strik?utm_term=plantronics+backbeat+pro+2+vs+beats+studio+3 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4477387/normal_5ffdb995ea614.pdfIn PDF document text
    • https://cdn.sqhk.co/zaweniwefi/jjejaib/65618736036.pdfIn PDF document text
    • https://cdn.sqhk.co/bowazeduz/IgIgeu7/sezokufuw.pdfIn PDF document text
    • https://cdn.sqhk.co/kamozipu/ge2FjjW/22405514715.pdfIn PDF document text
    • https://gewavidabu.weebly.com/uploads/1/3/0/7/130775927/20984ca2c5.pdfIn PDF document text
    • https://cdn.sqhk.co/jagibuvat/igjdjjk/xukebutifine.pdfIn PDF document text
    • https://cdn.sqhk.co/xopuwomu/jh0sicG/universe_silver_deposit_account.pdfIn PDF document text
    • https://cdn.sqhk.co/posojuvapono/Phhjgih/fly_over_this_weekend.pdfIn PDF document text
    • https://cdn.sqhk.co/mugapowejog/YjnvhbR/33045214981.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409421/normal_6011d45c14cdb.pdfIn PDF document text
    • https://zeraxoxuret.weebly.com/uploads/1/3/4/6/134642117/b66007f7a8cedd3.pdfIn PDF document text
    • https://cdn.sqhk.co/gilubibawi/be5ijif/saturn_nimmt_keine_media_markt_gutscheine.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369316/normal_5ffe250c45d7e.pdfIn PDF document text
    • https://jelozenodi.weebly.com/uploads/1/3/0/7/130739120/vujulukumoxel_xabufizifesori_wifixaf_gezapimawawowuk.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_off0000e757.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE757 5628 bytes
SHA-256: d7bb4829881719f78a16b26613242887f0ed5dc20fc6daf9471dc090a06658a2
font_01_sfnt_off0000fa8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA8D 10712 bytes
SHA-256: ff6b7b15fae0b50c8b8a5c22c90a8c69ff167c6bbfc43f09049c6e422ced377c

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