Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fcbd99eddd6b545…

MALICIOUS

PDF

35.3 KB Authoring application: pstoedit
MD5: 6a65ef1d7516926c81c0615064fc1521 SHA-1: 1eab6710b0e54f72fb2b812fbbe6c8d6046faa72 SHA-256: 2fcbd99eddd6b54594cc54fa8b540034e763cec9947d97baf9e74f5f8b8d621f
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents hosted on various domains. This technique, identified as PDF_SEO_LINK_FARM, is commonly used to distribute phishing content or redirect users to malicious sites. The ClamAV detection further supports its malicious nature, classifying it as Pdf.Phishing.TtraffRobotInstall. The document body, though containing garbled text, includes a reference to a Cisco ASA configuration guide, which may be a lure to entice users to click the embedded links.

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://sugarmaplecharcoal.com/uploads/1/3/0/6/130640046/390ee.pdf
    • http://freescholarships.site/uploads/1/3/0/3/130379266/towefeneliraz.pdf
    • http://starlightimagestudio.com/uploads/1/3/0/6/130604588/jurol-bosiv.pdf
    • http://santapanebiancostore.com/uploads/1/3/0/7/130776873/vafimizazepad.pdf
    • http://alamodecollections.com/uploads/1/3/0/4/130488320/depuzi.pdf
    • http://podcastle.net/uploads/1/3/0/5/130542813/60a1d144fbebb47.pdf
    • http://bambusaglobal.com/uploads/1/3/0/2/130274345/40f36603.pdf
    • http://toosex.live/uploads/1/3/0/5/130546885/d4391ab7b18.pdf
    • http://romanainvestmentsllc.com/uploads/1/3/0/4/130488063/5f7a0.pdf
    • http://natureinnny.org/uploads/1/3/0/2/130291575/1037251.pdf
    • http://9guides.com/uploads/1/3/0/5/130550711/pofapige-nuvenena-mamemiliwi-sowunonug.pdf
    • http://giftsandgratitude.com/uploads/1/3/0/5/130539944/tiwipumawufoj.pdf
    • http://hostmaster.actorstoolkit.co.uk/uploads/1/3/0/2/130288326/lugolot.pdf
    • http://aftertrust.com/uploads/1/3/0/7/130776509/8179dac80.pdf
    • http://mrweaver.us/uploads/1/3/0/5/130550948/cb26b.pdf
    • http://adsl-63-204-18-5.benefitplans.org/uploads/1/3/0/7/130776519/130776519.html#cisco+asa+version+8.2+configuration+guide

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fe9.bin
41210fc96c0633759c7148d39c7ef05ef7e9f69908e6cb1f1dd554c9237bf672		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2FE9 7684 bytes

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