Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf59111a712cb5fc…

MALICIOUS

PDF

45.1 KB Authoring application: Smallpdf Desktop
MD5: 504275061ae99c6d5029a8f3a09935de SHA-1: 706d222d160f2d003c3588d5ae2682676f466a6b SHA-256: bf59111a712cb5fcddc1e6f114b9fbbea232c73cb2b2b05d9f626ba9b7be384b
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or distribution network. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall' further supports a malicious intent, likely related to phishing or traffic redirection. No scripts were extracted from this sample.

Heuristics 3

  • 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.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://lavirgen.net/uploads/1/3/0/7/130738603/fasagor_dusowugenu_rutil.pdf
    • http://baronyofthelonelytower.org/uploads/1/3/0/7/130738635/7401615.pdf
    • http://lifetrim.net/uploads/1/3/0/7/130776883/6041325.pdf
    • http://mcpheron.net/uploads/1/3/0/7/130776257/801019.pdf
    • http://edwardfunkhouserofficial.com/uploads/1/3/0/6/130603995/vitovubet-zirubeg-rodikeler.pdf
    • http://www.bisoubijoux.com/uploads/1/3/0/7/130775265/4c7f3c.pdf
    • http://robziman.com/uploads/1/3/0/2/130291724/26b3d3.pdf
    • http://acloudsolutionsarchitect.com/uploads/1/3/0/6/130605162/bewopom.pdf
    • http://weed-feed.me/uploads/1/3/0/6/130620662/2439036.pdf
    • http://colinaway.com/uploads/1/3/0/5/130550833/tavigalev-napapikalarinip.pdf
    • http://derrettphoto.com/uploads/1/3/0/2/130291838/dexal.pdf
    • http://sayfgate.com/uploads/1/3/0/2/130270990/mesozuziw.pdf
    • http://smartpromoting.com/uploads/1/3/0/3/130313803/kegolelaxetuxobaxiji.pdf
    • http://musicboxhire.co.uk/uploads/1/3/0/8/130813141/dukafo.pdf
    • http://bobodigitalmarketing.com/uploads/1/3/0/8/130814715/97faf.pdf
    • http://blushboheme.com/uploads/1/3/0/4/130476157/veneg.pdf
    • http://artsdatascience.org/uploads/1/3/0/7/130776403/27f9990ed63bbbc.pdf
    • http://carmelbayplaceholder.devsite-1.com/uploads/1/3/0/5/130541744/130541744.html#how+to+prevent+abnormal+uterine+bleeding

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000053c7.bin
c6f4d25ca3151aff0bd953ded7aeb11d5c36d02a9741d32609a4b2bfca023e2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53C7 8272 bytes

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