PDF malware analysis — malicious · 7538c898e9af654b

MALICIOUS

PDF

47.6 KB Authoring application: PDFBox

MD5: 5da4647920402de641058dcf4b21ab43 SHA-1: 831dac9c104f231dba9866441898b14a9ae9a23f SHA-256: 7538c898e9af654b0e8069b3fa0838e19387acb76e455acb9b58186e479af926

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link farm of external PDF files, disguised as Aadhaar form downloads, which is a common lure for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to deliver a second-stage payload via the embedded URLs. No scripts were extracted, but the PDF structure and embedded URLs are sufficient to infer a malicious download attempt.

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://davidcarere.com/uploads/1/3/0/2/130287945/264438.pdf
- http://villamklima.com/uploads/1/3/0/6/130620348/5523561.pdf
- http://miraclevalleyceylon.com/uploads/1/3/0/3/130379673/ebbc1efb7.pdf
- http://pburg94rescue.org/uploads/1/3/0/6/130604466/4682579.pdf
- http://mountzionpbchurch.org/uploads/1/3/0/2/130288447/sapiwe.pdf
- http://mysoundcollective.com/uploads/1/3/0/2/130271244/130271244.html#aadhaar+form+download+pdf
- https://savannah.gnu.org/projects/freefont/
- http://www.gnu.org/licenses/
- http://www.gnu.org/copyleft/gpl.html

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00001030.bin` `ba9df3987b9ae2179822a17abb2fed2337551f8c2581012dd76b35546d214e8b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1030	7968 bytes
`font_01_sfnt_off000068b3.bin` `83459e82cebe561b9e65dda6a09953c9e35f75e5df0fa62a624e1833cc5b8086`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x68B3	1708 bytes
`font_02_sfnt_off0000717a.bin` `f0bc93c773957a4957c5d50397d99d2cb866b99162f26d0eef4a7b05ba57595c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x717A	8840 bytes

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