PDF malware analysis — malicious · 1230bb351df3abe9

MALICIOUS

PDF

69.8 KB Created: 2020-12-19 10:37:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14

MD5: fbfa8b76eba9df6061c7e53e2a6c9f28 SHA-1: 16e2a8981eb64a18bce64a9fd06a538b6290e14a SHA-256: 1230bb351df3abe903f738657ea5e2b9905b40a2a4e148c5317c8477e96421c9

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains embedded URLs, one of which, 'https://traffnew.ru/aws?utm_term=template+replication+definition+biology', is flagged as suspicious. The document body, though heavily obfuscated, suggests a lure related to 'template replication definition biology', likely a pretext to disguise malicious intent. The presence of embedded URLs and the overall malicious verdict strongly indicate a phishing or malware distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9995

Heuristics 4

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
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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://traffnew.ru/aws?utm_term=template+replication+definition+biology PDF link annotation
- https://jovofodofipepij.weebly.com/uploads/1/3/2/6/132682866/guxowibo.pdfIn PDF document text
- https://pazodozonevaken.weebly.com/uploads/1/3/4/6/134606284/mepinon_piwovebamejejo_genukanoro.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/naramuro/kavel.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f2745eaa-aba6-479d-a6f3-2fdecda28bdf/38376268578.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc07dde27a199023ab34438/t/5fc1c5ecfa04221c71612d29/1606534637197/electric_wall_clock_with_light.pdfIn PDF document text
- https://s3.amazonaws.com/divexikav/5505790568.pdfIn PDF document text
- https://s3.amazonaws.com/tetenifeme/41755069731.pdfIn PDF document text
- https://s3.amazonaws.com/nowonovege/jenup.pdfIn PDF document text
- https://s3.amazonaws.com/tetenifeme/dalopabibe.pdfIn PDF document text
- https://s3.amazonaws.com/rebomedug/cisco_sg350xg_datasheet.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000d31d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD31D	5488 bytes
SHA-256: `1cf164acf61cd9ba16203a42ef66daf43f7bb272e76d5fec6fc5229379e418d0`
`font_01_sfnt_off0000e5b8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE5B8	10892 bytes
SHA-256: `053510fea4f5fcda3611d6dcda0dc7befb656a685ba2cab91072bc97fc5ebe6c`

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