Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d1fa7d2eb8bfe41…

MALICIOUS

PDF

38.2 KB Authoring application: Solid Converter PDF
MD5: 429cd282ab23c076d1f6fe4b8d491a9f SHA-1: 41bf385a9f2c00839a33ddea438ad2dc68b3c6dc SHA-256: 5d1fa7d2eb8bfe4135f7e50d806012ca58a7992c72c9f7655917d0d51311622b
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many of which point to other PDF files, indicating a link farm designed to distribute malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the heuristic 'PDF_SEO_LINK_FARM' and the embedded URLs suggest the document is part of a campaign to redirect users to malicious 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://ceticubatours.com/uploads/1/3/0/2/130272394/vakev.pdf
    • http://cardasiscounseling.org/uploads/1/3/0/7/130775654/sunizej_patafimawa_medeli.pdf
    • http://exploitsr.us/uploads/1/3/0/3/130323406/6472232.pdf
    • http://secondaire1et2.net/uploads/1/3/0/7/130739816/4815669.pdf
    • http://americangroundtoair.com/uploads/1/3/0/5/130588811/kowitamifababafuze.pdf
    • http://rejuvenatelifeforce.com/uploads/1/3/0/7/130740169/5003602.pdf
    • http://www.fr.advend.ca/uploads/1/3/0/3/130313454/kepitugod.pdf
    • http://tidaleffects.net/uploads/1/3/0/7/130738712/d9f82c6fc7df2.pdf
    • http://commeshot.com/uploads/1/3/0/9/130969334/6973421.pdf
    • http://newenglandsmartenergyllc.com/uploads/1/3/0/5/130590169/4040851.pdf
    • http://counselinginlafayette.com/uploads/1/3/0/7/130775200/dalafidalekeji_tumimesox_kumefaje_wasezij.pdf
    • http://letstalkfoundation.org/uploads/1/3/0/2/130273617/f84bf0.pdf
    • http://aquaticsspace.com/uploads/1/3/0/7/130775075/458b6c3dd3f.pdf
    • http://haphop.com/uploads/1/3/0/5/130539842/fuwewipelason_jutukukazevi.pdf
    • http://ayriebckyll.com/uploads/1/3/0/7/130775531/susisenivuwo-lipuveredoruzo-sogew.pdf
    • http://crosbyhairstyling.com/uploads/1/3/0/5/130547659/nijusil_ronusexuxev_zidaviwepim.pdf
    • http://pms292.com/uploads/1/3/0/7/130775792/bivuwafudik.pdf
    • http://truevaluelawncare.com/uploads/1/3/0/6/130639835/5520349.pdf
    • http://littleoasis.co.nz/uploads/1/3/0/3/130379422/a64dd2a.pdf
    • http://trestlestop.com/uploads/1/3/0/6/130621061/5091812.pdf
    • http://tjtlzy.com/uploads/1/3/0/5/130551720/zuvakekoj.pdf
    • http://patienthealthinfo.com/uploads/1/3/0/7/130739744/334d01.pdf
    • http://masteringyourorgasm.com/uploads/1/3/0/4/130476850/3fa0b.pdf
    • http://writersplot.com/uploads/1/3/0/7/130739713/a3ee4d327b516a.pdf
    • http://businessarchitectureworkshop.com/uploads/1/3/0/5/130551210/7ea69f158b7.pdf
    • http://v90hr.bpmtc.com/uploads/1/3/0/8/130814192/130814192.html#introduction+to+flow+cytometry+bd+biosciences

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003186.bin
811679a64f9ca55c1b27afe071845706d7cff8a1b41b123866da877c5fecc628		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3186 7628 bytes

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