Malicious PDF — malware analysis report

Static analysis result for SHA-256 b46cceedfca1580b…

MALICIOUS

PDF

45.0 KB Authoring application: pstoedit
MD5: 42f4ec6192c2722aeb7cc4db525645bc SHA-1: 33ca9a58fb9da0986f07b26ea14b4879a5ce1533 SHA-256: b46cceedfca1580b1306603be84495101652920e33d53bd05509cfb6f7040548
120 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, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection of Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or malicious redirection intent. The document body is heavily obfuscated and unreadable, but the presence of numerous links to other PDF files suggests a link farm or redirection mechanism designed to lead users to malicious content.

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://cgexitmaterials.com/uploads/1/3/0/6/130640003/semusoziguji.pdf
    • http://zenexbcs.com/uploads/1/3/0/3/130312944/eab1d46de80172.pdf
    • http://oldpeanut.com/uploads/1/3/0/7/130738885/kobasisa.pdf
    • http://www.rachelflynnart.com/uploads/1/3/0/3/130379492/284c230a43.pdf
    • http://ronstruckshop.com/uploads/1/3/0/2/130289220/7669624.pdf
    • http://bellecreekresources.net/uploads/1/3/0/6/130620650/guboxidakul_peguvewosan_livigetexiforim_buxexewoxajuxa.pdf
    • http://mta-sts.mail.myvoicemywords.com/uploads/1/3/0/6/130620668/265187.pdf
    • http://salgroup.org/uploads/1/3/0/6/130639863/a8418436f4.pdf
    • http://maikesmarvels.net/uploads/1/3/0/2/130270874/91d7f8a6e01d8a.pdf
    • http://morgan.team/uploads/1/3/0/3/130313056/13ae7ceb19e9.pdf
    • http://electricgatesnwa.com/uploads/1/3/0/6/130621432/dd86fbc1bac5.pdf
    • http://costaspeed.com/uploads/1/3/0/5/130539046/318501.pdf
    • http://ibnpercy.com/uploads/1/3/0/6/130604205/divudoti-gotonaso-gulikaxuz.pdf
    • http://foodplusfit.com/uploads/1/3/0/7/130776100/sufenul_suzuzeba_xewimaw.pdf
    • http://www.missiondrivenresources.com/uploads/1/3/0/4/130436147/6eb35d7.pdf
    • http://mrnowadays.com/uploads/1/3/0/5/130589057/zozir-wewevezesogute-xadowuxigunizoz-wizomeguzaj.pdf
    • http://innovationbroadcastservice.live/uploads/1/3/0/5/130542940/8794879.pdf
    • http://eidointernational.com/uploads/1/3/0/6/130620873/7e7c37651a6.pdf
    • http://essentialoilsbykristine.com/uploads/1/3/0/6/130621245/cf813c52a8b0.pdf
    • http://nrsvirtualservicesdev.com/uploads/1/3/0/2/130272080/jadujam-tubud-sifizakutokazel.pdf
    • http://dazzleitdesigns.com/uploads/1/3/0/3/130379675/zefigedodo_tujarasapirumat_mapupawedup.pdf
    • http://rockymountainhomeinvestors.com/uploads/1/3/0/5/130551330/fozofakiwumuvogavafo.pdf
    • http://merchmerchmerch.shop/uploads/1/3/0/7/130739185/pokexane.pdf
    • http://punani.world/uploads/1/3/0/6/130604150/ccf585c49331c4.pdf
    • http://jazmin-gonzalez.com/uploads/1/3/0/6/130604617/53e70.pdf
    • http://riu5kbwh.brdge.org/uploads/1/3/0/3/130323302/130323302.html#salivary+alpha+amylase+stress
    • http://mrnowadays.com/uploads/1/3/0/5/1305890

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003dc5.bin
4d9ec2aec8f1ca6bebe1b56492fd55a77bba3a6e98efb76508c1b835d4eb9912
pdf-font-stream PDF embedded font (sfnt) at offset 0x3DC5 2860 bytes
font_01_sfnt_off00004a82.bin
a14dcbcc5073bdaafde6e560178ea4ca6822234bb810a3b91bf199b6ad94812f
pdf-font-stream PDF embedded font (sfnt) at offset 0x4A82 8212 bytes