PDF malware analysis — malicious · ddedc78f58459a9b

MALICIOUS

PDF

87.4 KB Created: 2021-05-27 20:43:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23

MD5: ccd7c86106eab46208c4259fd354b0ec SHA-1: ebd9c16bc65da4556fd82845fc8ea00beb1b9307 SHA-256: ddedc78f58459a9bb07f122f1a5944b6a8720444f7d8b89b8f82eb356dec0bf9

164 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous external links, including one to 'ponafet.ru', suggesting a phishing or malware distribution attempt. The 'PDF_SEO_LINK_FARM' heuristic indicates a large number of links, likely to obscure the malicious intent. ClamAV detection as 'Pdf.Phishing.Trojan' further supports the malicious classification. The document's content, though heavily obfuscated, appears to be a lure related to a 'murder mystery dinner'.

Machine Learning

Nyx PDF Classifier malicious score 0.9991

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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://ponafet.ru/strik?utm_term=maggiano%2527s+murder+mystery+dinner+houston PDF link annotation
- https://static.s123-cdn-static.com/uploads/4454822/normal_5ffd38c7a6e9b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4446030/normal_6024c6f400a65.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4366331/normal_5fe2adeb24246.pdfIn PDF document text
- https://kikosubulu.weebly.com/uploads/1/3/4/8/134884397/netavawisorose.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4447433/normal_600729898947d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4493600/normal_6054c4d44d1c4.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4366316/normal_5ffb69a00fe48.pdfIn PDF document text
- https://puxefulido.weebly.com/uploads/1/3/1/3/131383426/99fc8cbea8262e3.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4375908/normal_600623a08d607.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383704/normal_603e39371b4ac.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366020/normal_6052dc2c3f0ed.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4382779/normal_606bea1356d82.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421354/normal_605887222ac9f.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4448121/normal_5fec2fbb64b22.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374362/normal_60449366db636.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4376371/normal_5ff314157afc1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4411700/normal_6062e8e3424f2.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4421061/normal_6003b8d3874a6.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4408335/normal_60046e3f83908.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4414173/normal_603cc27a5fccb.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4463538/normal_5fcaa27c6aaa7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4472185/normal_600a1ee799bc0.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4503692/normal_5ffb9e46ce9ef.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In 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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00010a20.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10A20	5232 bytes
SHA-256: `d4709321b8613cdc49db2a11ef5e512b8f29b65e46a5d50b0808a8783a8c1742`
`font_01_sfnt_off00011bc8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11BC8	11128 bytes
SHA-256: `4d6174463b7a3a4a71721569db59e0865140eb11b0de2e957c614cdf35d5a587`
`font_02_sfnt_off000141ca.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x141CA	4324 bytes
SHA-256: `b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c`

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