Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbc4c521c7435ad1…

MALICIOUS

PDF

35.1 KB Authoring application: LibreOffice
MD5: 6bbd0ad4acf56048802bcb285ee715d1 SHA-1: 3ff6e32ec4a171e282f947c715079083fa7f961d SHA-256: cbc4c521c7435ad18a31f88edf0f6828ee2d47fab979933cd9a78082acb518ce
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. ClamAV also detected this file as Pdf.Phishing.TtraffRobotInstall. The embedded URLs are likely used to redirect users to malicious sites, potentially for phishing or to download further malware. No scripts were extracted from this sample.

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://aventuratipi.com/uploads/1/3/0/5/130589108/jebukoteromodu.pdf
    • http://jeanstandmeministries.com/uploads/1/3/0/4/130478259/nutamim.pdf
    • http://stevenandstacee.com/uploads/1/3/0/5/130550881/varugezomiso_dareg_balupoxukip_kunujoran.pdf
    • http://yasminevintage.com/uploads/1/3/0/5/130540352/23942.pdf
    • http://bujalag.audiostart08.icu/uploads/2020/01/28/1555336.pdf
    • http://geomice.com/uploads/2020/01/28/xirubamelomiso-xovatuf-kemelitodo.pdf
    • http://stoneforcepavingandmasonry.com/uploads/1/3/0/4/130483990/pirafopepizufig-jalidixosunaket-zixafujofat-segegoxesut.pdf
    • http://kicon-academic.com/uploads/1/3/0/4/130483737/2688469.pdf
    • http://americanlandscapingservice.com/uploads/1/3/0/5/130550704/7a21a.pdf
    • http://bethevibration.com/uploads/1/3/0/5/130589243/bilave-korutorel.pdf
    • http://vipiski-besplatno9.icu/uploads/2020/01/28/5759a13971a051.pdf
    • http://apparel-articlefifteenbrewing.com/uploads/1/3/0/3/130379638/8208045550cab.pdf
    • http://logaga.unikmetal.ru/uploads/2020/01/29/dexusepifizolo-xawonoxisoneti.pdf
    • http://morningteawithmarybrown.com/uploads/1/3/0/3/130323515/7297658.pdf
    • http://evidentone.com/uploads/1/3/0/4/130483629/rapawamatudapel_sexetabolis_perovimosa_sajatixaso.pdf
    • http://fribergfysikalske.com/uploads/1/3/0/3/130313081/2349871.pdf
    • http://nebraskatowshow.com/uploads/1/3/0/6/130603965/8611135.pdf
    • http://lagib.talvenline.ru/uploads/2020/01/28/kipulepo-voxoxu-vamenafevisu-modazoditeb.pdf
    • http://nuobeijinghotel-chinese.devsite-1.com/uploads/1/3/0/4/130436439/130436439.html#safety+data+sheets+for+carex+handwash

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000015c0.bin
abdb60fdec8eff39212bb8c133286f60c15e474faf08b6cd21e106a243f3e1a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15C0 7664 bytes

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