Malicious PDF — malware analysis report

Static analysis result for SHA-256 f18d12ed42fefff6…

MALICIOUS

PDF

40.5 KB Authoring application: pstoedit
MD5: 1ded5dcd80ae6ab83a898231c1865a8c SHA-1: 9e342b8f99e93a57b5ce5d7e5be5e140a517b19c SHA-256: f18d12ed42fefff69f556652572a8b202c9dfa2fce1cc2bec52d809c4adeaad3
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded URLs pointing to other PDF files, indicating a link farm or distribution mechanism. The ClamAV detection and ML classifier strongly suggest malicious intent, specifically identified as phishing and traffic redirection. No scripts were extracted from this sample, but the sheer volume of outbound links is highly suspicious.

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://cassiescreations.com/uploads/1/3/0/8/130873958/2146473.pdf
    • http://bellamooncosmetics.com/uploads/1/3/0/3/130379132/pixaxamor.pdf
    • http://trophybearer.org/uploads/1/3/0/7/130738943/848763.pdf
    • http://bradleeseventures.com/uploads/1/3/0/6/130604173/7904719.pdf
    • http://somestickers.com/uploads/1/3/0/6/130639982/5a12f065c6d6f0.pdf
    • http://artpassion.store/uploads/1/3/0/2/130270980/xepadazogigobut.pdf
    • http://oraclevms.com/uploads/1/3/0/6/130622073/rovipitiwururemog.pdf
    • http://djournalebydn.com/uploads/1/3/0/6/130621997/8190503.pdf
    • http://dmitrithompson.com/uploads/1/3/0/6/130640123/kobogude-dizogatoj.pdf
    • http://jack-brandon.com/uploads/1/3/0/8/130873961/vodesafapuxovo.pdf
    • http://cakepopsbymaggie.com/uploads/1/3/0/5/130550949/5781336.pdf
    • http://mattycake.com/uploads/1/3/0/4/130489157/zobofodiwudiful.pdf
    • http://555-bonus.space/uploads/1/3/0/7/130738893/totidulid-pofulokub-bubezava.pdf
    • http://jimmcnasby.com/uploads/1/3/0/3/130313167/6535197.pdf
    • http://nothingtotriflewith.com/uploads/1/3/0/7/130739373/jawegizizujij_barexiti_disutex_jibete.pdf
    • http://forthepeopleinstallations.com/uploads/1/3/0/6/130604672/vanat.pdf
    • http://pcdoctors.com.co/uploads/1/3/0/5/130540507/fazebemo.pdf
    • http://purgatoirevalleyfoundation.org/uploads/1/3/0/6/130621815/gigugezevoxesafa.pdf
    • http://mentoringfutureleaders.com/uploads/1/3/0/3/130323573/f88dc1372.pdf
    • http://repriseplay.com/uploads/1/3/0/4/130478831/9289214.pdf
    • http://bevaraweb.com/uploads/1/3/0/6/130604004/735c97.pdf
    • http://diynailsalon.com/uploads/1/3/0/2/130292014/5341211.pdf
    • http://mswilliamsonline.com/uploads/1/3/0/6/130603834/pegutimomolabul.pdf
    • http://lpqe5c.salon225.com/uploads/1/3/0/3/130323406/130323406.html#blood+group+o+diet+food+list
    • http://cakepopsbymaggie.com/up

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003c39.bin
0ee79ec2c17d83edd1ebc6f2b9b0b24bf4da501f49952b9eb3106b00629d2736		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3C39 7960 bytes

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