Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d524274d2f3e7f3…

MALICIOUS

PDF

38.8 KB Authoring application: Scribus
MD5: b86418c90893784a7e746d4924520883 SHA-1: aad3a74037a1ef24951286819c74660dd1709dee SHA-256: 1d524274d2f3e7f3c84a0d8e57690a080cd6cbe6d9c6f513a528ca60877a16b0
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic, which is a common technique for SEO poisoning and phishing campaigns. The ClamAV detection and ML classifier strongly indicate malicious intent. The embedded URLs likely lead to further malicious content or phishing pages.

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://avivaclayman.com/uploads/1/3/0/4/130492889/7003374.pdf
    • http://moabgearheads.com/uploads/1/3/0/4/130476649/veluxufamof.pdf
    • http://opfee.net/uploads/1/3/0/2/130273584/e0826e80566044.pdf
    • http://mentesconscientes.org/uploads/1/3/0/7/130776644/9850582.pdf
    • http://brandonmillerbasketball.com/uploads/1/3/0/5/130588980/noboxizitirusit-pelusemife-vomogibap-fojof.pdf
    • http://whiteteacup.net/uploads/1/3/0/2/130271058/figoxos.pdf
    • http://aerohive.tech/uploads/1/3/0/3/130379222/povikanavawuz-bodizofofeduzam.pdf
    • http://rosepalmerlaw.com/uploads/1/3/0/2/130288426/4254663.pdf
    • http://perfectlywrappedllc.com/uploads/1/3/0/2/130272390/tagago.pdf
    • http://lowcostphotobooths.co.uk/uploads/1/3/0/7/130775260/eb703d.pdf
    • http://credit-karma.co/uploads/1/3/0/7/130775889/f8a624.pdf
    • http://aberturasazteca.com/uploads/1/3/0/6/130639143/0a128ffab9.pdf
    • http://hostmaster.light-forms.com/uploads/1/3/0/3/130324340/4797866.pdf
    • http://moversinmiami.net/uploads/1/3/0/6/130605331/wumobaxatipivomar.pdf
    • http://cechainstoreflooring.com/uploads/1/3/0/4/130490314/zidekamoxe-luriw-tunipokaxalu-jisalajutuk.pdf
    • http://www.sweetmaplecafe.co/uploads/1/3/0/5/130589299/sudesinetoxemelitile.pdf
    • http://amitkhare.com/uploads/1/3/0/6/130603815/xowasuxowide.pdf
    • http://greaterenochgrove.com/uploads/1/3/0/6/130621965/fulorawibevo-rujogifit.pdf
    • http://www.montecarloproductionsmagazine.com/uploads/1/3/0/7/130776847/d6fae79ffbb.pdf
    • http://orencostation.org/uploads/1/3/0/6/130604501/newesiwurukes-buriwafopiz-robuf.pdf
    • http://afsanehkhoramshahi.com/uploads/1/3/0/2/130291676/2152408.pdf
    • http://tenajanutrition.com/uploads/1/3/0/4/130476548/solaj.pdf
    • http://www.joeybruzzese.com/uploads/1/3/0/2/130274355/jisifuxefatinul-sajevowugif-tikunali.pdf
    • http://ywbhe.bpmtc.com/uploads/1/3/0/2/130289495/130289495.html#ascites+icd+10+dx+code
    • http://rosepalmerlaw.com/up

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003655.bin
6279418b71cffdc9bf15274ff82b2a1b8b95b880c2b6d14ee7625c6d2e0eeaf8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3655 7492 bytes

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