Malicious PDF — malware analysis report

Static analysis result for SHA-256 112aa80be0fb0c29…

MALICIOUS

PDF

37.6 KB Authoring application: PDF Studio
MD5: 30758c853f078f47b7376c3d9cd89d03 SHA-1: 53a2e64e4a1e36abebe13ff6b37854c27fe35a42 SHA-256: 112aa80be0fb0c294c403ff4c7ad70c8fd03d8390e7927b9fc87d414020adc59
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 hosted across various domains. This behavior is indicative of a link farm or a mechanism to distribute further malicious content or phishing lures. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or SEO abuse.

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://movie-day.com/uploads/1/3/0/6/130639803/pivomiraxame.pdf
    • http://mendocinorose.com/uploads/1/3/0/6/130603976/4639635.pdf
    • http://thetechgrok.com/uploads/1/3/0/3/130379804/018111a906c2.pdf
    • http://louisvillemoldsolutions.com/uploads/1/3/0/4/130476791/fidizuzodog.pdf
    • http://knottwotents.com/uploads/1/3/0/5/130590435/9403030.pdf
    • http://www.takishikawadesign.com/uploads/1/3/0/3/130313495/0481a.pdf
    • http://coandco.group/uploads/1/3/0/7/130775278/fijotaxo_vedizesum_sujivud.pdf
    • http://nintaipartners.com/uploads/1/3/0/4/130436299/xunadusexiwafiwilima.pdf
    • http://buddhistnationalisminmyanmar.com/uploads/1/3/0/6/130620379/velezuvofikirodo.pdf
    • http://sugarlash.com/uploads/1/3/0/7/130775607/bewufiso.pdf
    • http://deadbikerssociety.com/uploads/1/3/0/7/130776130/be8d8.pdf
    • http://em.onepercentpr.com/uploads/1/3/0/6/130621542/4006914.pdf
    • http://yourprpath.com/uploads/1/3/0/7/130775724/d46740f07953db6.pdf
    • http://equestriansupply.co.nz/uploads/1/3/0/4/130476083/3127632.pdf
    • http://hostmaster.magneticislandyoga.com.au/uploads/1/3/0/4/130483428/kedugigajired.pdf
    • http://cpanel.joinzombieclub.com/uploads/1/3/0/5/130539416/gowafudivir.pdf
    • http://impactinstituut.org/uploads/1/3/0/4/130483558/7371489.pdf
    • http://bet365youhui.br3h.com/uploads/1/3/0/4/130435701/130435701.html#legend+of+zelda+ocarina+of+time+rom+romsmania

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003581.bin
c8b949a07af4601fe69df8644764133494cd07f14c626ae6c8f94efe148db004
pdf-font-stream PDF embedded font (sfnt) at offset 0x3581 8192 bytes