PDF malware analysis — malicious · 1b9b585787290bcf

MALICIOUS

PDF

66.4 KB Created: 2020-11-24 17:43:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27

MD5: a86ac21771a8099f71f52d2b7e153838 SHA-1: d19bf27a1e67d9e32f5807cd90ccfca71b1f567d SHA-256: 1b9b585787290bcf99205ad6da604a7e2db61dae127b96955c009ae61a8301b5

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://traffmen.ru/123?utm_term=city+of+garden+grove+planning'. The ML classifier also flagged this PDF with a high probability of being malicious. While no scripts were explicitly extracted, the presence of a malicious URL strongly suggests a phishing or malware delivery attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9981

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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://traffmen.ru/123?utm_term=city+of+garden+grove+planning In PDF document text
- https://cdn-cms.f-static.net/uploads/4470543/normal_5fb60629d1325.pdfIn PDF document text
- https://zagarete.weebly.com/uploads/1/3/4/6/134687236/marobox-kafizubetoloba.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4371258/normal_5fa4f701c4316.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4451945/normal_5fa47d7778113.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4393521/normal_5fba4f5979123.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/sazomo/gozupalikavi.pdfIn PDF document text
- https://s3.amazonaws.com/napoledunadigo/nugudunuxi.pdfIn PDF document text
- https://s3.amazonaws.com/tagorarib/cts_exam_guide.pdfIn PDF document text
- https://s3.amazonaws.com/nokiva/card_kingdom_battle_deck_card_lists.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_off0000c775.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC775	5100 bytes
SHA-256: `f9db9611d0ade7a8c6751f15f8e4e64f3e5775af1e1c610dea4b75e99d15a7ad`
`font_01_sfnt_off0000d8f1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD8F1	10912 bytes
SHA-256: `d9001fe6708ce6ccc8515cadc84e748b1ad0eb3876f19a40e6fe67ba4ad27eeb`

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