Malicious PDF — malware analysis report

Static analysis result for SHA-256 aad7dce17c17e735…

MALICIOUS

PDF

31.2 KB Authoring application: PDFedit
MD5: 5a950f6e8e0c8c86872290e88b8cbba6 SHA-1: d71b651d06fb63694f05d51860a0b09fa98bb9d7 SHA-256: aad7dce17c17e73568cc20c07bda57e164a230e3fedf25706d917c2d018aed98
120 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV with the signature Pdf.Phishing.TtraffRobotInstall-7605656-0. Static analysis revealed a critical heuristic firing for PDF_SEO_LINK_FARM, indicating the presence of numerous external links within the document. These links are likely designed to lure users to phishing or malware-hosting sites. The document body contains a mix of seemingly random characters and embedded URLs, further supporting the phishing lure.

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://wuxepabetubiju.weebly.com/uploads/1/3/0/4/130476244/684170.pdf
    • http://zerebra-leaf.com/uploads/2020/01/27/botefalebife.pdf
    • http://optomsahar.ru/uploads/2020/01/28/9707531.pdf
    • http://kehoetelematics.com/uploads/1/3/0/6/130620314/muvelamadeparej_rajuwi.pdf
    • https://mirisomulo.weebly.com/uploads/1/3/0/5/130590561/wazebumesogorafi.pdf
    • http://pchscareerdevelopment.weebly.com/uploads/1/3/0/6/130621280/pigumuni_sixamukobit.pdf
    • http://lalivu.onlineedu.ru/uploads/2020/01/29/besadur_vixetif_kagitoxu_redatezezuvapo.pdf
    • http://nuduzu.minus11kg.ru/uploads/2020/01/28/lixanisifovu.pdf
    • http://londonambulanceservice-patientsforum.org/uploads/1/3/0/4/130476525/wurijifugezi-fomulo-jomajaw-gamenopodijel.pdf
    • http://ocseocali.com/uploads/1/3/0/2/130289475/130289475.html#ielts+writing+answer+sheet+idp+2018

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000013a9.bin
48d7933de773a9a0048e71e32053e48cbe1362f00185d2efbf5b1f986ec5f201		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13A9 6948 bytes

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