Malicious PDF — malware analysis report

Static analysis result for SHA-256 59e6159ca60f4063…

MALICIOUS

PDF

123.2 KB Authoring application: PDF Studio First seen: 2020-07-02
MD5: 0c896f5b31e7e460fb28fe75d8d806c5 SHA-1: e96e9f1c0b6248a0a65b48e452c1e62e729951b2 SHA-256: 59e6159ca60f4063e3003611e616a6cfdd755888b1f2b621dd3f3cfffcf3cd10
172 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document exhibits characteristics of an advance-fee scam, including lottery or parcel delivery lures combined with requests for payment or personal information. The presence of numerous embedded links to external PDF files, hosted on various domains, suggests a link farm designed to distribute malicious content or redirect users to phishing sites. The ClamAV detection further supports the malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9807

Heuristics 4

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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 http://nanaslittleworld.com/uploads/1/3/0/2/130289173/75bacb.pdf In PDF document text
    • http://nonreligiousspiritual.com/uploads/1/3/0/6/130621890/57c6a361ef.pdfIn PDF document text
    • http://seedtoatree.com/uploads/1/3/0/6/130604554/42680dfb1.pdfIn PDF document text
    • http://commongroundsphilly.com/uploads/1/3/0/6/130604158/putav.pdfIn PDF document text
    • http://budekezuge.arteltiles.com/uploads/2020/01/29/riwuzeb_tifara_gixumakuxivefe_vapajowodow.pdfIn PDF document text
    • http://nwapetgrooming.com/uploads/1/3/0/2/130289179/130289179.html#virginia+elaine+wheatIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.adobe.com/).NotoIn PDF document text
    • http://www.google.com/get/noto/http://www.adobe.com/type/ThisIn PDF document text
    • http://scripts.sil.org/OFLNotoIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000118c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118C 10384 bytes
SHA-256: bdf382714973b94de2f6137ad3039ea0a647d783fe3fe71576b2e28c8e158f92
font_01_sfnt_off00009355.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9355 5416 bytes
SHA-256: c6b1c6ad83d7e4ae0a85a761cabc2ec2076d62e91e51f0d2dd6ad63f1c836e99
font_02_sfnt_off000199c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x199C2 16364 bytes
SHA-256: 0595ada0112e89b93f32d986b5951ab20b2f85b40600355f548d092e565ec68b
font_03_sfnt_off0001af56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AF56 2600 bytes
SHA-256: 63f5e27ee3d24cc00d413e59c301cc73ab377383609796993547673f2bea898c