PDF malware analysis — malicious · 114ba28f25710947

MALICIOUS

PDF

55.9 KB Authoring application: Serif PagePlus

MD5: 9e20a5c49f224f0d07eb5a33077b4dd8 SHA-1: 2d11e0a6bd7f1e309fa4b96494aa763a597a81ac SHA-256: 114ba28f257109478c2324c68992ded54585aafe70a106ff499b4e7a0d2490c4

192 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document exhibits characteristics of a phishing lure, as indicated by the high number of embedded links to external PDF files, many of which appear to be algorithmically generated. The ClamAV detection and ML classifier further support its malicious nature. While no scripts were extracted, the primary attack vector appears to be the redirection of users to potentially malicious content hosted on numerous domains.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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
PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK

PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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://bgmlondon.com/uploads/1/3/0/5/130539428/f63766b81ad0.pdf
- http://www.goradiocristosalva.org/uploads/1/3/0/7/130738797/9304359.pdf
- http://lingoweaver.net/uploads/1/3/0/6/130604354/3663386.pdf
- http://longnecklagooneec.com/uploads/1/3/0/3/130379063/4de6a4863115.pdf
- http://foodytees.com/uploads/1/3/0/4/130483400/6607113.pdf
- http://jamesagibson.com/uploads/1/3/0/7/130739082/8714640.pdf
- http://wojimbo.com/uploads/1/3/0/5/130540072/e5fbd8795eb.pdf
- http://admin.mountainarearesidentialfacilities.org/uploads/1/3/0/5/130589198/1106545.pdf
- http://tilevum.store/uploads/1/3/0/2/130271073/vamejadinudepemot.pdf
- http://fearlesssocial.net/uploads/1/3/0/4/130435746/vewejuvanak.pdf
- http://wcd-1199sab5.mgh-r.ch/uploads/1/3/0/6/130639959/130639959.html#polar+to+cartesian+formula
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
- https://fedoraproject.org/wiki/Licensing/LiberationFontLicense
- https://savannah.gnu.org/projects/freefont/
- http://www.gnu.org/licenses/
- http://www.gnu.org/copyleft/gpl.html

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00004f80.bin` `779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4F80	16036 bytes
`font_01_sfnt_off000063bb.bin` `6444857d212d59486fd2460beb5c880fa69f0bd6d5b47f81c4ff3eb2e0ed9607`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63BB	3432 bytes
`font_02_sfnt_off00006ec5.bin` `44bc507e6feece4b5ec51d67d3f3322caae0b47fa6f13d11cd391cbfb070b514`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6EC5	6644 bytes
`font_03_sfnt_off00008271.bin` `c2fd688be4fd0556556bd19a3369da356586f06e7af8eff8c69efeb1a36bd1fe`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8271	9000 bytes

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