Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8539c28e0897c95…

MALICIOUS

PDF

36.9 KB Authoring application: QPDF
MD5: 967847bcaa673585202f1b957ab0b7a9 SHA-1: 8191655f3b2acf22b410ec8352f52f6e2087925d SHA-256: d8539c28e0897c95b42a41df9ee46a6f8e58c237c600c378f6c18df8b34d555c
140 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many pointing to PDF files, suggesting a link farm for SEO manipulation or to host malicious content. The 'SE_CALLBACK_LURE' heuristic indicates the document prompts users to call a phone number for deceptive purposes, consistent with callback phishing or tech-support scams. ClamAV detection further confirms its malicious nature as a dropper. No scripts were extracted from this sample.

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.
  • ClamAV: Pdf.Dropper.Agent-7975445-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7975445-0
  • 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
  • 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://fionaspotswood.uk/uploads/1/3/0/4/130435902/2849909.pdf
    • http://mycorsicanabedding.com/uploads/1/3/0/6/130621490/6791588.pdf
    • http://newstokenpool.com/uploads/1/3/0/5/130551219/xinini_fekusarizawer_nudopa.pdf
    • http://newspechomes.com/uploads/1/3/0/4/130490019/3c1166b3eb.pdf
    • http://keithharleystyle.com/uploads/1/3/0/7/130740590/92979cf0020c865.pdf
    • http://hollywoodmediacampus.com/uploads/1/3/0/4/130489448/5b3d8d6b.pdf
    • http://myhealthcoachusa.com/uploads/1/3/0/5/130551364/1766547.pdf
    • http://jomowlawncare.com/uploads/1/3/0/5/130551387/pofume_vavovepomez_rezeforane_fejit.pdf
    • http://greysay.com/uploads/1/3/0/5/130588675/832f4da879e9a7.pdf
    • http://xtremetruckandtrailerspecialties.com/uploads/1/3/0/6/130621257/33c8395339b85ce.pdf
    • http://www.locketsmeadowproduce.com/uploads/1/3/0/3/130313360/db28d7f.pdf
    • http://martin-mchugh.com/uploads/1/3/0/6/130604536/6291037.pdf
    • http://capitolcouturepr.com/uploads/1/3/0/6/130604475/946cda7ec220a.pdf
    • http://mail.k9newlife.org/uploads/1/3/0/5/130550833/vomapavusufedin.pdf
    • http://wallbrosdrywallservices.com/uploads/1/3/0/2/130287529/98c785ed.pdf
    • http://berea-associates.com/uploads/1/3/0/4/130436007/8848941.pdf
    • http://bienchulas.com/uploads/1/3/0/7/130738978/bijozuka-kenaxigusev-dewilusej-zemulu.pdf
    • http://74-123-76-212.mgwnet.com/uploads/1/3/0/9/130969656/130969656.html#gta+v+xbox+one+cell+phone+cheats
    • http://martin-mchugh.com

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003386.bin
e90fb6c63bc39df24cf79d8484fa3dd91c3d90843681e18092b661fcced1b7b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3386 7832 bytes

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