Malicious PDF — malware analysis report

Static analysis result for SHA-256 4db69419f068ebea…

MALICIOUS

PDF

34.6 KB Authoring application: Pdftk
MD5: a2ad28423fdad86044c90c288405051a SHA-1: 507f9423b759882adbf1e0f0e2bbe6fd5e1384b2 SHA-256: 4db69419f068ebeacf4ead56ac6bf948d99d44699b0bebff26cabaa698ac62fe
128 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or redirection tactic. ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious intent. The document body, though heavily obfuscated, contains phrases related to PDF manipulation and a mention of an Adobe product, which may be a lure to disguise the malicious nature of the links. The primary attack pattern involves tricking users into clicking these links, likely leading to malware downloads or phishing pages.

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://mylesgrp.com/uploads/1/3/0/6/130639978/3246198.pdf
    • http://www.cbcatcher.com/uploads/1/3/0/4/130476447/defilorexod-jekojuxovedida-xirisalosila-vebuvukopanobiz.pdf
    • http://www.test.boyce4playgrounds.com/uploads/1/3/0/4/130488286/fimodirituko.pdf
    • http://www.recoveryourway.org/uploads/1/3/0/7/130776716/denuvigebivu.pdf
    • http://joshuahorrom.com/uploads/1/3/0/5/130588885/4897195.pdf
    • http://wtataxinc.com/uploads/1/3/0/5/130590531/wazajozof.pdf
    • http://tractortrailerrepairrichmond.com/uploads/1/3/0/6/130621393/dc1e92d3b51b7.pdf
    • http://effectivepmc.net/uploads/1/3/0/7/130776561/b9c2fda2d0f4be.pdf
    • http://josephwalker.net/uploads/1/3/0/4/130435650/limanalov_dupakifowo.pdf
    • http://www.myaaaurgentcare.com/uploads/1/3/0/6/130621521/japuxawimi-felabixumedirus-xofovugexoxus-muzodivi.pdf
    • http://www.alliedhealthcareinstitute.com/uploads/1/3/0/2/130288523/1928557.pdf
    • http://switalia.com/uploads/1/3/0/3/130324418/130324418.html#join+two+pdf+documents+online

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f80.bin
91deccc399039d7ad6ef74582c92f535ac13a4befb3ed4841ce72fc173f4775d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F80 7964 bytes

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