Malicious PDF — malware analysis report

Static analysis result for SHA-256 a174b5dc31544c94…

MALICIOUS

PDF

44.9 KB Authoring application: Soda PDF
MD5: b4664c0ab6a134d5361fd86ea7e70d99 SHA-1: e4c81e3bbe63b48f361db0f473aa5970ea56691f SHA-256: a174b5dc31544c9417643187ceda30a1ef767700e4c2a2c72bb881cc8aaed324
150 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics, including ClamAV and an ML classifier, for malicious behavior. It contains a large number of embedded URLs pointing to external PDF files, indicating a link farm or distribution mechanism. The primary attack pattern observed is the mass distribution of links, likely to manipulate search engine results or to serve as a lure for further malicious activity.

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://www.shopbyrc.com/uploads/1/3/0/7/130775760/76ecb.pdf
    • http://www.paolofacchi.com/uploads/1/3/0/7/130775623/gulikexigeginom_sevifojosefu_mibenineg.pdf
    • http://mrsyatesclass.com/uploads/1/3/0/6/130639518/mojusunogegaben.pdf
    • http://meganclements.com/uploads/1/3/0/6/130621554/2e9a64eb1e5.pdf
    • http://prosphatos.com/uploads/1/3/0/4/130476039/3249492.pdf
    • http://mesquesabons.com/uploads/1/3/0/7/130776760/883481.pdf
    • http://bobodigitalmarketing.com/uploads/1/3/0/4/130476579/4562043.pdf
    • http://everythingnotes.com/uploads/1/3/0/7/130775084/9de36b784.pdf
    • http://finaltouchcleaningservices.net/uploads/1/3/0/6/130603975/godepi-gobesotibemugi-nojugopot-gifupagivebane.pdf
    • http://dressscore.com/uploads/1/3/0/2/130274301/totetemusagunotud.pdf
    • http://ericsoldfriends.com/uploads/1/3/0/2/130289658/b3e93f03f717883.pdf
    • http://directinservicetraining.com/uploads/1/3/0/7/130740597/8e6568544.pdf
    • http://mychirosense.com/uploads/1/3/0/2/130271243/9124549.pdf
    • http://mta-sts.smtp.wbrental.com/uploads/1/3/0/6/130620334/338e78ade14.pdf
    • http://host209.carmichaelnl.com/uploads/1/3/0/6/130605383/130605383.html#twoway+graph+panel+data+stata

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000054ad.bin
75ac2842112d82fc955c06ff953b30bbfe299375b7b10a2d19ec26b7110b16fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54AD 8524 bytes

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