Malicious PDF — malware analysis report

Static analysis result for SHA-256 15d8b53a1b4a759b…

MALICIOUS

PDF

36.2 KB Authoring application: LibreOffice Draw
MD5: 514b6e6c09fb8705b6b0bbed9c96be5e SHA-1: c79ba45cf41f8125e2347b7f06bdb3940fc47833 SHA-256: 15d8b53a1b4a759b17e32aa7552fefa8479bcc46df222f2f77dd295ea8eb1ff7
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier further indicate malicious intent, likely related to phishing or redirecting users to malicious content. No scripts were extracted, but the structure strongly suggests a malicious link distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://jibakuzudulevu.weebly.com/uploads/1/3/0/6/130604078/9218c7.pdf
    • http://harmonicspresents.com/uploads/1/3/0/5/130547069/2234245.pdf
    • http://xew.holidayandpackage.com/uploads/2020/01/27/081348e78.pdf
    • http://samokut.0106shop02.fun/uploads/2020/01/27/wokiboto-zufumuvumobimi.pdf
    • http://activemech.com/uploads/1/3/0/5/130539990/woniwu-xuzipulafu-jubativofazeda-valubidokopil.pdf
    • http://dodabur.member-neteller.mobi/uploads/2020/01/28/6303571.pdf
    • http://tabithasdesigns.org/uploads/1/3/0/6/130621180/a42819dc8cb96b.pdf
    • https://zapekewagavupo.weebly.com/uploads/1/3/0/3/130313218/187253.pdf
    • http://scribejar.com/uploads/1/3/0/4/130491757/numonuf.pdf
    • http://mainehypnotistsngh.org/uploads/1/3/0/4/130436337/lizanegapemaji_ramoneluvirefar.pdf
    • http://fex.odnavosmaya.ru/uploads/2020/01/29/supewe-linurexepeke.pdf
    • http://nationalriskmanagementgroup.com/uploads/1/3/0/2/130288986/130288986.html#lindsey+stirling+sheet+music+roundtable+rival

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012ed.bin
887ed899f53877962a96ae865e9052970c77db162b88280a51b21931b8d66303		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12ED 9532 bytes

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