Malicious PDF — malware analysis report

Static analysis result for SHA-256 db5f20d1f30ae6eb…

MALICIOUS

PDF

53.7 KB Authoring application: Inkscape
MD5: ba4cd8c309566bea39d3909a90131036 SHA-1: e6010bff93a759a79185dd2aad9056e7991574aa SHA-256: db5f20d1f30ae6eb096046f848b8e4df9f2953ba1913eb5fe4c9ffd38abd0ea4
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links to external PDF files hosted on various domains, as indicated by the PDF_SEO_LINK_FARM heuristic. This suggests a link farm or redirection strategy to distribute malicious content. The ML classifier and ClamAV detection further support its malicious nature, with ClamAV identifying it as Pdf.Phishing.TtraffRobotInstall-7605656-0. The document body contains garbled text, indicating it is not intended for direct user interaction but rather as a container for the malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 http://5phortiplex.com/uploads/1/3/0/7/130775386/3717036.pdf
    • http://odontologoscol.com/uploads/1/3/0/5/130551231/214f6916.pdf
    • http://androiduserexperience.com/uploads/1/3/0/5/130541271/pojopuwogu_gisudiw_dedudiwat_ribuxunasej.pdf
    • http://wichtermanteam.com/uploads/1/3/0/4/130483491/wokiz.pdf
    • http://mrsmoorehubbardsclassroom.com/uploads/1/3/0/6/130603827/5580878.pdf
    • http://wendellsamfordphotography.com/uploads/1/3/0/4/130483670/4499715.pdf
    • http://nerdlebanon.com/uploads/1/3/0/5/130590410/2775450.pdf
    • http://lkinvestigativeservices.net/uploads/1/3/0/3/130323318/neneruwawiweririnuwu.pdf
    • http://metrodetroitofficials.com/uploads/1/3/0/2/130289508/bolugarudolomife.pdf
    • http://capitaljunkie.com/uploads/1/3/0/3/130313673/rasonalaju_fotikorozen_wabumeludukeg_wetolodol.pdf
    • http://mail.egboss.net/uploads/1/3/0/8/130815137/loxugugifeko-samifitepetop-punafozufupi-vusewem.pdf
    • http://www.childpsychseattle.com/uploads/1/3/0/6/130639205/4646942.pdf
    • http://mychristmastreeornament.com/uploads/1/3/0/5/130543870/9443865.pdf
    • http://christinatrutiak.com/uploads/1/3/0/8/130813855/jusofaf_zuvamesu_bidijabaza.pdf
    • http://stopgossipping.com/uploads/1/3/0/6/130604583/08225.pdf
    • http://bsa-sccc-pack301.com/uploads/1/3/0/6/130622110/fubabanafefutaz.pdf
    • http://nomadicmichelle.com/uploads/1/3/0/7/130775835/3392006.pdf
    • http://akroncantonfirewood.com/uploads/1/3/0/5/130551006/mofegukusemu_wotiragadi.pdf
    • http://weddingplannerkona.com/uploads/1/3/0/5/130590532/xosopuf_jefadibikiwo_vakej.pdf
    • http://laughingbuddharetreats.com/uploads/1/3/0/3/130379504/kironajumekiru.pdf
    • http://wellread.co.uk/uploads/1/3/0/8/130814475/62251ceddc6b8.pdf
    • http://paperlotuscrafts.com/uploads/1/3/0/5/130590215/411da888.pdf
    • http://glitterandore.com/uploads/1/3/0/6/130639831/jotajolafaxebud.pdf
    • http://kimkrips.com/uploads/1/3/0/2/130287318/7469063.pdf
    • http://yegflooring.com/uploads/1/3/0/7/130775690/xenemulidukaj.pdf
    • http://cpanel.coprimag.com/uploads/1/3/0/5/130588653/130588653.html#surah+rahman+tarjuma+ke+sath+tilawat

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005516.bin
ca889182d22413b1a5b6446cd5d954c095bfc2c8b2fec1022b19199100617195
pdf-font-stream PDF embedded font (sfnt) at offset 0x5516 16028 bytes
font_01_sfnt_off00006c77.bin
257cf457163cf30f8e4018770c6cd914d2f883d166f267ee153d93db8401d4fc
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C77 8324 bytes