Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9e2cfebbef47691…

MALICIOUS

PDF

34.6 KB Authoring application: LibreOffice Draw
MD5: 83031994e58ee45369ec63ab71c9199b SHA-1: 246ef93cd38ab4869a5262af95b09dbf88f1c2ad SHA-256: d9e2cfebbef47691d77f0b555125a50e7e84991a9a9a9741797a288c5d0c8cb0
160 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which are disguised as a guide to medical school admissions. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the heuristic 'PDF_SUSPICIOUS_LINK_LURE' indicate that these links are intended to lead users to malicious content, likely for phishing or malware distribution. The embedded URLs suggest a link farm or redirection scheme designed to obscure the final malicious destination.

Heuristics 4

  • 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
  • Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LURE
    PDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
  • 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://skatefiction.com/uploads/1/3/0/5/130589007/1561276.pdf
    • http://rewi.nakrutkanow.xyz/uploads/2020/01/28/baxebilezi_xenagovew_mirinixabaxez_vefojemoru.pdf
    • http://stevenzhang.com.au/uploads/1/3/0/6/130621473/194481.pdf
    • http://naturalrawgoodness.com/uploads/1/3/0/2/130271048/4967393.pdf
    • http://metropolismexican-grill.com/uploads/1/3/0/6/130639549/daxuki.pdf
    • http://allesaker.com/uploads/1/3/0/3/130323406/67aed9207a3e263.pdf
    • https://tuvagetuxepuf.weebly.com/uploads/1/3/0/4/130475973/933427d5f475.pdf
    • http://securepaytinkof.online/uploads/2020/01/28/ramevi.pdf
    • http://archangelwealthcoaching.com/uploads/1/3/0/6/130605416/janen.pdf
    • http://medrano-homes-construction.com/uploads/1/3/0/6/130605219/85ab6b204fc8.pdf
    • http://bshk.hklss.hk/uploads/1/3/0/4/130488780/budivokomorol.pdf
    • http://loriot-climate.ru/uploads/2020/01/28/3695711.pdf
    • http://lamariposatexas.com/uploads/1/3/0/5/130588461/4688480.pdf
    • http://cookiesbykae.com/uploads/1/3/0/4/130483407/saxem_lowopusenixodap_rapigozi_buxelisu.pdf
    • http://pxrministries.org/uploads/1/3/0/6/130603823/4114932.pdf
    • http://cyclebavaria.com/uploads/1/3/0/6/130639883/130639883.html#the+official+guide+to+medical+school+admissions+2018

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001489.bin
2b89836e313e567e5186d011443378cb8a19aaf264a422113645f80b2555d8f5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1489 8288 bytes

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