Malicious PDF — malware analysis report

Static analysis result for SHA-256 21c04bed813778bb…

MALICIOUS

PDF

37.7 KB Authoring application: OpenOffice.org
MD5: 39ae641bc7598d4166ce5e3f64267341 SHA-1: ac0202c9d812f217119f115e283f16a6231aa28e SHA-256: 21c04bed813778bb687ff841140536466e18732c2eb7b38fe79ce58906f6b853
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though partially corrupted, suggests a lure related to 'Borrower signature authorization form', and the SE_CALLBACK_LURE heuristic indicates a potential callback phishing or tech-support scam context. The ClamAV detection further confirms its malicious nature as Pdf.Phishing.TtraffRobotInstall. The primary attack pattern involves redirecting users through numerous domains, likely for SEO poisoning or to distribute further malicious content.

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
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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://rudywalkerofficial.com/uploads/1/3/0/6/130605159/basanoravudorimagisi.pdf
    • http://mi6app.com/uploads/1/3/0/5/130539763/digiri-pexabotewomare-xufibimop.pdf
    • http://elvi.site/uploads/1/3/0/6/130621212/15729a0a86.pdf
    • http://bearfruitsbaskets.com/uploads/1/3/0/6/130604232/ratiluxufujemo_xivul_mesekoweganop_xakuxo.pdf
    • http://connectingcoffee.com/uploads/1/3/0/4/130477090/b4f57df4.pdf
    • http://iwa-tellmyanmar.com/uploads/1/3/0/6/130639708/lizonapegasij-zodadifif.pdf
    • http://createpowtoon.com/uploads/1/3/0/6/130604486/vodanasis-fepupivafezalu.pdf
    • http://babuni.ca/uploads/1/3/0/6/130639143/7074456.pdf
    • http://drashraf.co.uk/uploads/1/3/0/3/130379342/6b8618fc2d3fab.pdf
    • http://newstylemarket.com/uploads/1/3/0/7/130739695/130739695.html#borrower+signature+authorization+form

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000126c.bin
20f6f344ea5c1dc942b980de2755299c38eb2836dccb1868644e528c44dfe77a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x126C 8664 bytes

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