PDF malware analysis — malicious · beb84806fa3b6001

MALICIOUS

PDF

59.7 KB Created: 2020-11-25 12:11:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 4afc5d98f224c152b923071cb7664e54 SHA-1: 57be8449eeaaedb2c87509958cff20f70dbba9be SHA-256: beb84806fa3b60012fe36329eccc61e780428889dd121a4d5bd3fd79cec7b383

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous external links, forming a link farm, and is flagged by ClamAV as a phishing trojan. The primary URL, 'https://traffking.ru/strik?utm_term=city+of+san+jose+permit+center', suggests a lure related to city permits, likely intended to deceive users into visiting malicious sites. No scripts were extracted, but the PDF structure and embedded links indicate a malicious intent to redirect users.

Machine Learning

Nyx PDF Classifier malicious score 0.7704

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.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
External URI info PDF_URI

PDF contains an external URL action
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 https://traffking.ru/strik?utm_term=city+of+san+jose+permit+center
- https://cdn-cms.f-static.net/uploads/4378855/normal_5f9ff11210557.pdf
- https://cdn-cms.f-static.net/uploads/4449990/normal_5fbd876d1bf6a.pdf
- https://gusumadanu.weebly.com/uploads/1/3/2/6/132695601/ea3c0857f.pdf
- https://terobatef.weebly.com/uploads/1/3/4/3/134397950/medipanog_kujafikosof_biwanod_pipipigexigodi.pdf
- https://cdn-cms.f-static.net/uploads/4372080/normal_5f9e7296dc298.pdf
- https://cdn-cms.f-static.net/uploads/4465398/normal_5fa3371820742.pdf
- https://cdn-cms.f-static.net/uploads/4374859/normal_5f98c5a0db029.pdf
- https://cdn-cms.f-static.net/uploads/4450502/normal_5fb872a1da526.pdf
- https://cdn-cms.f-static.net/uploads/4410976/normal_5fa31c896cc54.pdf
- https://cdn-cms.f-static.net/uploads/4427313/normal_5f9f3c6a6791f.pdf
- https://cdn-cms.f-static.net/uploads/4387590/normal_5f8fbdc3c6832.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/2c2438a9-9a66-49ad-a8ef-25b8ec7fe81f/xixifubitadaka.pdf
- http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000c72f.bin` `cd8292ee922a1a973cf096186f22fb1c5986d2e55b50820a4898c2491cd9fb47`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC72F	5212 bytes

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