PDF static analysis report

Static analysis result for SHA-256 4ac87a223841bd1c…

SUSPICIOUS

PDF

151.1 KB Created: 2020-04-04 08:30:48 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 2f6b22c4ed853d7c88a9314653c745f9 SHA-1: 411acd3da19fddb4cb56576d76186d5f5a845f70 SHA-256: 4ac87a223841bd1c3480ad9dde99de4b69d1491a39000eacbc61a4d08bcd9090
56 Risk Score

Malware Insights

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

The PDF contains embedded URLs and the document body suggests a lure related to the 'Ted Kaczynski manifesto'. The SE_CALLBACK_LURE heuristic indicates the document may also prompt users to call a phone number, consistent with phishing or scam tactics. The ML classifier strongly flagged this PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9945

Heuristics 4

  • 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.
  • 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 http://benkregel.com/uploads/1/3/0/6/130639385/130639385.html#ted+kaczynski+manifesto+amazon PDF link annotation
    • http://navionaero.com/uploads/1/3/0/6/130620443/xagaket.pdfIn PDF document text
    • http://mybrotherskeeperministries.org/uploads/1/3/0/7/130740046/077d783c76.pdfIn PDF document text
    • http://xspeedea.com/uploads/1/3/0/8/130814469/1659456.pdfIn PDF document text
    • http://synergybarberbeautyarena.com/uploads/1/3/0/7/130739021/towidu.pdfIn PDF document text
    • http://doctoralsuccess.com/uploads/1/3/0/8/130814636/viwanusi_dimem_bukujotudo_pedenedi.pdfIn PDF document text
    • http://rjsdiner.org/uploads/1/3/1/4/131454397/kixewu.pdfIn PDF document text
    • http://emigrateawayusa.com/uploads/1/3/0/5/130589174/tudexufemiregu.pdfIn PDF document text
    • http://12ktrv.com/uploads/1/3/0/4/130483153/lesupe.pdfIn PDF document text
    • http://tulsawindowtinter.com/uploads/1/3/0/9/130969243/e0847e001e4.pdfIn PDF document text
    • http://flameglory.com/uploads/1/3/1/4/131483061/jozexosabunenesoka.pdfIn PDF document text
    • http://wongahill.com/uploads/1/3/1/3/131380636/luvug.pdfIn PDF document text
    • http://ethanmentzer.com/uploads/1/3/1/4/131438747/b0bc3aa1.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
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn 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
🗂 Part of campaign: mindysjourney.org 3 samples

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001e51b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E51B 12272 bytes
SHA-256: 7b3a445ebd58f99f6a0f21ddeaf6f38dee77c2ef50196015cf6a32ed474f9ddd
font_01_sfnt_off00020ef9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20EF9 2600 bytes
SHA-256: 41d5c9cb4d60b7530e3cfd93a78efd430fe179aa57a8296e74fb8a971da4b0ee
font_02_sfnt_off000217f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x217F8 8908 bytes
SHA-256: 6dcd3ee3680d4f8e33f71663ea20e09ace0e2b7fb4fe8ddd9f09673454b7e873
font_03_sfnt_off000234d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x234D5 16408 bytes
SHA-256: e629fe6884fcd9a643d5e75ec17908b4572efddd601fb2d4842b4e4d3406d6b4