Malicious PDF — malware analysis report

Static analysis result for SHA-256 9034bd4a22ae2734…

MALICIOUS

PDF

34.7 KB Created: 2020-06-20 23:01:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b96670497a6a04fc0dfca19bfeb0f0ce SHA-1: 88cf672870e515435631aa9a6e422c28eacc747d SHA-256: 9034bd4a22ae273448b94fe678fee5bab28ee08a8c128d28832812bd019baa0c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF document contains a large number of external links, many of which point to other PDF files hosted on similar subdomains. The 'SE_CALLBACK_LURE' heuristic indicates the document is designed to trick users into calling a phone number, consistent with callback phishing or tech-support scams. The embedded URLs likely serve as part of this lure, potentially leading to further malicious content or information gathering.

Heuristics 4

  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://mail.nubischegeiten.com/uploads/1/3/0/5/130543684/130543684.html#spypoint+ir-7+manual
    • http://mail.rechargedmiracles.nl/uploads/1/3/0/5/130550930/duwudep.pdf
    • http://phoneserver2012.pinnacleven.com/uploads/1/3/0/6/130621781/d7725.pdf
    • http://hostmaster.mollycoddleparties.com.au/uploads/1/3/0/2/130287426/1285064.pdf
    • http://lorrainekurata.com/uploads/1/3/1/1/131164435/befofupap-xidinozavuf-dawobofori.pdf
    • http://thumphreys.com/uploads/1/3/1/3/131380383/golafeza.pdf
    • http://daltonyogadance.com/uploads/1/3/0/6/130604562/joroja.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004c26.bin
96a549364eed13523971820cd3ba9dba8a58f6a639bb799e7e873d72352061c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C26 4868 bytes
font_01_sfnt_off00005c92.bin
eb55caf6219649ed5bb6adbe63dff86296c6cff21465f2c6942c977ef6cc8073		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C92 10324 bytes

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