Malicious PDF — malware analysis report

Static analysis result for SHA-256 5813968d613beda2…

MALICIOUS

PDF

43.8 KB Authoring application: Smallpdf Desktop
MD5: 822fd61a5dddefef98df2420bd7ccce9 SHA-1: 67478334d3a526c78351524c815f5652d4863315 SHA-256: 5813968d613beda2dc29e5a0d0950177194aa7f5191a7c5f4c9351ee768472fb
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to external PDF documents, a technique often used for SEO poisoning or to redirect users to malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. No scripts were extracted from this sample.

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://studentsmentalhealth.net/uploads/1/3/0/6/130639183/5933653.pdf
    • http://allaboutalyssam.com/uploads/1/3/0/3/130313454/danumo.pdf
    • http://2daycashoffer.com/uploads/1/3/0/6/130639062/4246372.pdf
    • http://tap-folio.com/uploads/1/3/0/6/130604885/rurodefevajilud_riled.pdf
    • http://rossconcretemasonry.com/uploads/1/3/0/5/130539059/mibanuxu-fifedonu.pdf
    • http://culturallyresponsivesustainedteaching.com/uploads/1/3/0/2/130291328/6280615.pdf
    • http://mijaliscogrill2.com/uploads/1/3/0/2/130287503/dovulujitusaz_madaremimofiwux_dafetul.pdf
    • http://rootdesigns.net/uploads/1/3/0/7/130740084/9694798.pdf
    • http://sandyburlesoneportfoliowfu.com/uploads/1/3/0/6/130604207/1938303.pdf
    • http://wugosirej.provzor.ru/uploads/2020/01/29/2a74bd9.pdf
    • http://nationalfootballcheerleadersalumni.org/uploads/1/3/0/6/130639251/130639251.html#bilal+saeed+bewafa+song+free

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012b1.bin
4ec20485f98b85eac42f28d446e336be46946f300cd860da49919ccdfb3ff6d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12B1 8360 bytes
font_01_sfnt_off000061e3.bin
578b3955b0dc8fb439f663f3482be4259c3b85779a00d740e7ab00718e693f78		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61E3 16824 bytes

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