Malicious PDF — malware analysis report

Static analysis result for SHA-256 8bda8f24a0f8995f…

MALICIOUS

PDF

61.0 KB Authoring application: Serif PagePlus
MD5: 56a8d9c1e35b0e6e8519200a206bf651 SHA-1: 851b7c697a66557da3f4563e811003a55b6b04d9 SHA-256: 8bda8f24a0f8995f538d2985708b5f5f24d15e0602c5e2b236c6241213d63409
120 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV with the signature Pdf.Phishing.TtraffRobotInstall-7605656-0. Static analysis revealed a large number of embedded external links, a common technique for SEO poisoning or distributing malicious payloads. The document body contains garbled text and a repetition of these external URLs, suggesting it's designed to appear as legitimate content while directing users to potentially harmful sites.

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 https://teditabipesufa.weebly.com/uploads/1/3/0/2/130274322/9924ffcfdcd9d3.pdf
    • http://mrgospelmusic.com/uploads/1/3/0/6/130604804/67713.pdf
    • http://nuohotels.com/uploads/1/3/0/6/130621741/2894358.pdf
    • http://wickedfreshsalad.com/uploads/1/3/0/6/130605107/xananolox-gezef.pdf
    • http://mpassociatesrealtors.com/uploads/1/3/0/5/130589014/089c691d4.pdf
    • http://workone.info/uploads/1/3/0/3/130324075/mulemalotisoradupex.pdf
    • http://carypestpros.com/uploads/1/3/0/6/130640183/gomejo_matoregowoseful.pdf
    • http://ashish-jain.me/uploads/1/3/0/6/130604716/wupuwe_nekepobe_pegazasutopuzi.pdf
    • https://towudozevinos.weebly.com/uploads/1/3/0/4/130483817/8879998.pdf
    • http://blackwoodforsheriff.com/uploads/1/3/0/6/130604531/496f334610fa6.pdf
    • http://tauroafarmandwildexperience.com/uploads/1/3/0/3/130313190/8a5bf0.pdf
    • http://pusulaharita.net/uploads/1/3/0/2/130288630/6565228.pdf
    • http://tulsawindowtinter.com/uploads/1/3/0/5/130550722/miwipuz.pdf
    • http://collegestationtowing.com/uploads/1/3/0/5/130589362/304950b0b10b.pdf
    • http://rvrepairaustin.com/uploads/1/3/0/3/130323513/rarom-bavologozi-ruxewufunupoj-xiriteduwavigak.pdf
    • http://mufukokaku.brainit.ru/uploads/2020/01/28/vulok.pdf
    • http://ntagent.com/uploads/1/3/0/2/130289238/6568554.pdf
    • http://fuz.viptoys.top/uploads/2020/01/28/vabivanagivowone.pdf
    • http://nose.cctfi.biz/uploads/2020/01/28/sotob.pdf
    • http://narrins.com/uploads/1/3/0/4/130489572/5629218.pdf
    • http://buythef-ckingdip.com/uploads/1/3/0/2/130288520/vuzilezobubisekerab.pdf
    • http://bartolomeilaw.com/uploads/1/3/0/2/130289628/130289628.html#android+create+bitmap+from+drawable+resource

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001728.bin
28af7be9dd76db5da5901d4799619623edf90dba14ba9dfb89657f1f61dea46d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1728 8704 bytes

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