Malicious PDF — malware analysis report

Static analysis result for SHA-256 33e5a20081cafee9…

MALICIOUS

PDF

48.9 KB Authoring application: pstoedit
MD5: 3be29c2a1e78854887aa3ea70453df52 SHA-1: 900b5cabf3fcbce56000f0456616781aff6eaa12 SHA-256: 33e5a20081cafee951db80cbe6d34ce3b4e83ee901cb539f0fb54a3d2f555d84
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious. The primary indicator is the presence of a large number of external links to other PDF files, suggesting a link farm designed to distribute malicious content or phish users. While no scripts were explicitly extracted, the nature of the link farm and the ClamAV detection (Pdf.Phishing.TtraffRobotInstall) strongly indicate a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://newenglandpowerlight.com/uploads/1/3/0/5/130551994/tarofime.pdf
    • http://uwhqsc.org/uploads/1/3/0/4/130435986/jimolaxajosupu.pdf
    • http://mertior.com/uploads/1/3/0/3/130313366/5a05d8.pdf
    • http://northcountrysuggieshop.com/uploads/1/3/0/5/130539357/jotesevawir-tepij-zividobonarox.pdf
    • http://mindfulnessmatters.online/uploads/1/3/0/5/130551971/gejiwegexem.pdf
    • http://motionfuels-arkansas.com/uploads/1/3/0/3/130379155/veniwemazin_vumumubuvogirot.pdf
    • http://befirelight.co/uploads/1/3/0/5/130546024/pifibomemumam.pdf
    • https://fovulogok.weebly.com/uploads/1/3/0/5/130588336/73337.pdf
    • http://stjohnbaptistdelasalle.com/uploads/1/3/0/6/130639547/3693895.pdf
    • http://053748270.com/uploads/1/3/0/4/130476158/fijinuleferolij_rawixikidewobo_dujano.pdf
    • http://tautsaimnieks.online/uploads/1/3/0/6/130621818/7639580.pdf
    • http://adcounselling.net/uploads/1/3/0/3/130313746/jipezu-novap-zusex-ruvowoko.pdf
    • http://ealawrayauthor.com/uploads/1/3/0/2/130289570/xikexabemuluraj_vimizemulupo_kadovobeparafok.pdf
    • http://cninc.org/uploads/1/3/0/3/130313194/8002040.pdf
    • http://newlegacyfilms.com/uploads/1/3/0/4/130475938/0f9750.pdf
    • https://xokefejozorit.weebly.com/uploads/1/3/0/5/130588847/4139499.pdf
    • http://fozufapew.tenseducation.pro/uploads/2020/01/29/1948127.pdf
    • http://dirtysoles305.com/uploads/1/3/0/2/130289800/ripavakof.pdf
    • http://dancefitdanceacademy.com.au/uploads/1/3/0/6/130621077/dejivumuvoj_lanopapuwafilu_fekuvavabarikek.pdf
    • https://nuzexuwod.weebly.com/uploads/1/3/0/5/130539657/posav_fijif.pdf
    • https://xifejase.weebly.com/uploads/1/3/0/6/130605206/9558188.pdf
    • http://newmarketsblog.weebly.com/uploads/1/3/0/4/130483923/kufunazemi-toragem.pdf
    • http://mayahabian.com/uploads/1/3/0/5/130551635/aabf4257bec4add.pdf
    • http://acouturelife.com/uploads/1/3/0/2/130287936/130287936.html#latince+t%C3%BCrk%C3%A7e+s%C3%B6zl%C3%BCk+pdf
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000019a7.bin
abe38d4d24a9437236229caff7b1e050f5766b2365c3aad076f3e97137b53cf8
pdf-font-stream PDF embedded font (sfnt) at offset 0x19A7 10988 bytes
font_01_sfnt_off00007773.bin
f31c439e28d0137206b91a151f21343900f846ed9ff070250fbe82eb1cc7da1d
pdf-font-stream PDF embedded font (sfnt) at offset 0x7773 16204 bytes