Malicious PDF — malware analysis report

Static analysis result for SHA-256 0887dbac0fac7907…

MALICIOUS

PDF

56.5 KB Authoring application: Solid Converter PDF
MD5: d4e749ea43c99396c1dcff69d0d74adb SHA-1: 11b45e5c87657defecdb8e30e2638864c9aa765a SHA-256: 0887dbac0fac7907382b550e4ab0daebc090331b0763dafaeb2f12d834a5bbe3
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. ClamAV detected this as Pdf.Phishing.TtraffRobotInstall, indicating a phishing or traffic redirection intent. While no scripts were explicitly extracted, the PDF structure and the heuristic firings strongly suggest a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://skbequine.com/uploads/1/3/0/4/130476276/fesafivezoludi.pdf
    • http://getphonesex4free.com/uploads/1/3/0/2/130274098/senegiligi.pdf
    • http://plumbingventura.org/uploads/1/3/0/8/130874287/xovisori.pdf
    • http://jeyflores.com/uploads/1/3/0/4/130435850/jadaradekerav_kitevebalub.pdf
    • http://www.meagenroth.com/uploads/1/3/0/2/130270843/gemazav.pdf
    • http://almanacciai.info/uploads/1/3/0/6/130604350/881012.pdf
    • http://www.keanoscoffeeroasting.com/uploads/1/3/0/4/130435998/gurerejovosop.pdf
    • http://yourthaidreamcondo.com/uploads/1/3/0/2/130288559/wawax_gusanubexob_surilodamobala_kadubufemijufol.pdf
    • http://youthtensils.com/uploads/1/3/0/6/130605341/jatupalakegek_neminolo_mufatoraz_vopafala.pdf
    • http://vatspeak.com/uploads/1/3/0/6/130621193/9839719.pdf
    • http://www.ivfpartners.com.au/uploads/1/3/0/7/130776111/jaluwezazuw.pdf
    • http://litem.net/uploads/1/3/0/6/130640051/xufameduz.pdf
    • http://www.mygirl-talk.net/uploads/1/3/0/4/130488357/lizowela.pdf
    • http://misfitcrusaders.com/uploads/1/3/0/8/130814586/meviv.pdf
    • http://staceycampfield.com/uploads/1/3/0/2/130287989/3068377.pdf
    • http://yodesh.net/uploads/1/3/0/8/130814070/688476.pdf
    • http://farmersmarketdog.com/uploads/1/3/0/6/130603958/ce75f476f2616.pdf
    • http://monarchmagic.com/uploads/1/3/0/7/130775627/5942047.pdf
    • http://www.thebrewstew.com/uploads/1/3/0/7/130776738/7699150.pdf
    • http://camelbnb.com/uploads/1/3/0/7/130776433/4560095.pdf
    • http://artshotz.com/uploads/1/3/0/6/130620441/65042d1b2a23.pdf
    • http://justincollard.bio/uploads/1/3/0/5/130543787/6c2d5b98c.pdf
    • http://lemkeequipmentco.com/uploads/1/3/0/4/130478663/130478663.html#benzoin+condensation+theoretical+yield
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicense

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001382.bin
b72b2965fdcdfe5ca6d5a25cbd458665b01fed57f7ed09e929f98e9af7146a96		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1382 8100 bytes
font_01_sfnt_off00009450.bin
3d7b0ca093623d9358ade0a577e24f208748fee5e9a48e55efddcf7cb40c36f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9450 3116 bytes

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