PDF malware analysis — malicious · b9d8fa5f3c3b245b

MALICIOUS

PDF

42.7 KB Authoring application: OpenOffice Draw

MD5: 13f837d026d5b02bd1a19a1a8fa49025 SHA-1: 922814e4f1d907c8e3b6f47350234270916afb97 SHA-256: b9d8fa5f3c3b245b9d8be7e7d01078d9bb6a1e7d71ed7cd3a9094a9fd0dacc0e

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF contains a large number of external links, many of which point to other PDF files hosted on similar domains, indicating a link farm for SEO or malicious redirection. The document body, despite being heavily obfuscated, contains text related to phonics worksheets and embedded URLs, reinforcing the lure. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware distribution.

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://akronglobal.net/uploads/1/3/0/4/130478203/7640917.pdf
- http://mepalparish.org/uploads/1/3/0/6/130604888/6b410df.pdf
- http://bennettallenwood.com/uploads/1/3/0/6/130605275/ae6f3222.pdf
- https://rodimebeveluki.weebly.com/uploads/1/3/0/3/130379475/verasenasepus_nizag_pujukekorajaxu_vosiput.pdf
- http://dobryakkot.site/uploads/1/3/0/5/130545185/4434242.pdf
- http://bernardobellostudio.com/uploads/1/3/0/6/130621456/130621456.html#phonics+worksheet+for+kindergarten

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000010b7.bin` `cf0045825ec6d838d7069eb8692b51c0a40f9f5d637c32a01ce28f8278774875`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10B7	8040 bytes
`font_01_sfnt_off00005253.bin` `1671d4a6506f7deedb25c13781f115618252e1b93a4aad0bce3c1125e559b732`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5253	4388 bytes
`font_02_sfnt_off00005f9b.bin` `f31c439e28d0137206b91a151f21343900f846ed9ff070250fbe82eb1cc7da1d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5F9B	16204 bytes

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