Malicious PDF — malware analysis report

Static analysis result for SHA-256 9844df5a5b4a290e…

MALICIOUS

PDF

39.2 KB Authoring application: Serif PagePlus
MD5: 77c263824da47d42bdf0ae7ff1b288dc SHA-1: b1abc5d7be1d334f7752467d31b59e713da6503f SHA-256: 9844df5a5b4a290e75ce0d333a855fd19cba8de932298309f300f5d30d8ccefb
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to other PDF files across various domains. This behavior is indicative of a link farm or a phishing campaign designed to redirect users to malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the malicious classification.

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://seelenleben.ch/uploads/1/3/0/6/130640027/e772354b83d3.pdf
    • http://audreyacosta.com/uploads/1/3/0/3/130323268/148644.pdf
    • http://weintegration.com/uploads/1/3/0/6/130604342/bovefozewisumeb-tizufazebod-gakefipaka-wewesepukat.pdf
    • http://nanoredbiotechnology.com/uploads/1/3/0/5/130539457/2333372.pdf
    • http://vsemdaryu.site/uploads/1/3/0/6/130639315/nepedadimup.pdf
    • http://mmalite.com/uploads/1/3/0/6/130604710/07127bb15c41b.pdf
    • http://jaredlord.com/uploads/1/3/0/5/130543979/xidir.pdf
    • http://bienchulas.com/uploads/1/3/0/5/130541186/xewuxibadaj_xevulexe.pdf
    • http://cmedillustrations.com/uploads/1/3/0/6/130640178/tarigofememesor.pdf
    • http://longdistancevoter.net/uploads/1/3/0/6/130620482/cbd1e.pdf
    • http://cpanel.delaneydrywall.com/uploads/1/3/0/2/130291593/5054d4de27.pdf
    • http://fitzgerald.rominastiebenphotography.com/uploads/1/3/0/7/130739693/130739693.html#apache+beam+checkpoint

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000040db.bin
61c037df3f4bbb25ef9f6c0f224d27b35193097535b87c4d27909e228a19bb58		 pdf-font-stream PDF embedded font (sfnt) at offset 0x40DB 8636 bytes

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