Malicious PDF — malware analysis report

Static analysis result for SHA-256 c92ba653aa5d4760…

MALICIOUS

PDF

42.4 KB Authoring application: Inkscape
MD5: a24bb24d2ab5a9fae04c96f7d105277e SHA-1: 362f814b84fd87994f07c1d40b4bb3d0687aaf29 SHA-256: c92ba653aa5d4760548dfcb42f57e754559038a05fdb85c2fffc9c5affe5c04e
128 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 ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious intent, likely related to phishing or SEO abuse. The document body contains fragmented text and URLs, reinforcing the link farm finding. No scripts were extracted from this sample.

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
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://sertomachattanooga.com/uploads/1/3/0/2/130287529/peperugovev.pdf
    • http://beastedart.com/uploads/1/3/0/5/130541656/getes_wuropata_fexuko_madodojid.pdf
    • https://sobegaxufes.weebly.com/uploads/1/3/0/4/130476098/repoj.pdf
    • http://vuza.agicole-acces.com/uploads/2020/01/29/5285338.pdf
    • http://specialdental.net/uploads/1/3/0/6/130621741/4036776.pdf
    • http://nsolc.com/uploads/1/3/0/6/130621203/judupujur_jasubex_tuvigunezebote_navirijuveg.pdf
    • http://kif.otchet-tut.ru/uploads/2020/01/27/9975086ff.pdf
    • https://gifidupoj.weebly.com/uploads/1/3/0/2/130289308/1c4fa27a54d082c.pdf
    • https://wasazesogo.weebly.com/uploads/1/3/0/2/130271161/1151130.pdf
    • http://msh.design/uploads/1/3/0/4/130483810/4347341.pdf
    • http://campconcordia.net/uploads/1/3/0/3/130323998/45e1b6f883b.pdf
    • http://goreferences.com/uploads/1/3/0/6/130604428/tavuzo_mexuturemit_xepotinofufel.pdf
    • http://thimblethread.com/uploads/1/3/0/5/130588842/2808107.pdf
    • http://nexoclean.com/uploads/1/3/0/2/130291592/130291592.html#asus+zenfone+2+unlock+bootloader+apk

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000013ef.bin
e6f9a30dde14d396e3e4a74ea23db0ea9795aaeb6a35d4b43040ddd26dc14ba6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13EF 8852 bytes

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