Malicious PDF — malware analysis report

Static analysis result for SHA-256 356f5f2d3fde5c93…

MALICIOUS

PDF

40.3 KB Authoring application: Smallpdf Desktop
MD5: 28177c7a054ee56c7ef02b9dad5f9602 SHA-1: 8ea1f9d9059b8d79d5fede9e3cb33e33b9e5fbd1 SHA-256: 356f5f2d3fde5c931bbc2cf996009d853e566fe685007316b2ba957053ecd402
152 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 and the ML classifier strongly indicate malicious intent. The embedded links likely serve as a lure to download further malicious content or redirect users to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://app-recipt.com/uploads/1/3/0/6/130605344/5171697.pdf
    • http://pickpocketlabs.com/uploads/1/3/0/8/130873784/xetivuwim-mafini-wemafiroviw.pdf
    • http://arlingtoncarpetcleaner.com/uploads/1/3/0/3/130379422/330f84fe56c.pdf
    • http://www.finture.nl/uploads/1/3/0/2/130270763/f1551b297a.pdf
    • http://webmail.militiabymichaelhill.com/uploads/1/3/0/4/130483215/wekumixawawud.pdf
    • http://kithara.org.au/uploads/1/3/0/5/130539458/zowomunulesuxotoxid.pdf
    • http://nicktrinidadgarcia.com/uploads/1/3/0/5/130551141/3f3b9.pdf
    • http://fireplacewhisperer.com/uploads/1/3/0/3/130312929/049fa6329fb3.pdf
    • http://stngr.com/uploads/1/3/0/7/130775076/9195216.pdf
    • http://1stpage.co.nz/uploads/1/3/0/2/130271145/desivanagabajajixiko.pdf
    • http://openskydigitalmarketing.com/uploads/1/3/0/6/130621435/nowelagevumuneze.pdf
    • http://mydigitalvote.com/uploads/1/3/0/6/130621437/bf2432909b.pdf
    • http://dementiafriendlycapecod.org/uploads/1/3/0/2/130271184/4c7c6a5f1.pdf
    • http://mojohomeautomation.com/uploads/1/3/0/6/130620399/4846883.pdf
    • http://talkupyute.com/uploads/1/3/0/6/130620512/5144076.pdf
    • http://wormshare.com/uploads/1/3/0/7/130739233/8402182.pdf
    • http://cloverbend.org/uploads/1/3/0/6/130620356/3df3ad.pdf
    • http://betterwiththebible.com/uploads/1/3/0/6/130603815/2867952.pdf
    • http://benngun.com/uploads/1/3/0/5/130551087/130551087.html#agricultural+business+plan+format
    • http://nicktrinidadgarcia.com/uploads/1/3/0/5/1305

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003f04.bin
e93299ff883912274da80aa300bde68cc1a75d7c04051e9ef423f2b0245f6810		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3F04 8452 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.