PDF malware analysis — malicious · 7c974db0697a4c4e

MALICIOUS

PDF

69.5 KB Created: 2020-11-21 22:20:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15

MD5: 7284a4780e2e712191c22a1e76dd7e15 SHA-1: 95395580767e03e4c992b5948325f2403855858d SHA-256: 7c974db0697a4c4e96761e7b5c5c92b8df569cf91a00408dc5a99d0835094b8f

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document is identified as malicious by multiple heuristics and a machine learning classifier, with ClamAV detecting it as a 'Pdf.Phishing.Trojan'. The document body suggests a lure related to 'Gmat official guide pdf google drive', while the presence of a large number of external links, including one to 'traffnew.ru', indicates a potential phishing or SEO spam campaign. Although no scripts were explicitly extracted, the PDF structure and the nature of the links suggest it may leverage embedded JavaScript for malicious redirection or further payload delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 5

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

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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.
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/123?utm_term=gmat+official+guide+pdf+google+drive PDF link annotation
- https://fotejisatowonu.weebly.com/uploads/1/3/2/3/132302873/7227960.pdfIn PDF document text
- https://fixubosadad.weebly.com/uploads/1/3/4/6/134658154/f382d69576d6e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366389/normal_5f8717df5a97a.pdfIn PDF document text
- https://pudegubazamase.weebly.com/uploads/1/3/1/1/131163945/643b3bac.pdfIn PDF document text
- https://jarofudi.weebly.com/uploads/1/3/1/4/131408364/muwexuj-peduxarena-mopajunafimutik.pdfIn PDF document text
- https://pepisukuwen.weebly.com/uploads/1/3/1/6/131606293/569218d1.pdfIn PDF document text
- https://faxitovi.weebly.com/uploads/1/3/4/3/134379512/wepudimobe.pdfIn PDF document text
- https://pofewapat.weebly.com/uploads/1/3/4/0/134018592/runixojamaf.pdfIn PDF document text
- https://tibiwurab.weebly.com/uploads/1/3/2/6/132695994/5341355.pdfIn PDF document text
- https://woralolur.weebly.com/uploads/1/3/4/3/134359953/reboripedoxanobe.pdfIn PDF document text
- https://fegunase.weebly.com/uploads/1/3/4/6/134603704/monapexukejuvif.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/bofake/epic_seven_discord_tier_list_guide.pdfIn PDF document text
- https://s3.amazonaws.com/tuxenipup/career_word_search_answers.pdfIn PDF document text
- https://s3.amazonaws.com/zuxadol/jakusapesawozagu.pdfIn PDF document text
- https://s3.amazonaws.com/wovitiku/tutorial_adobe_premiere_pro_cs6_bahasa_indonesia.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_off0000d0f0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD0F0	5388 bytes
SHA-256: `3540e70dc8360060bef14481fc51af135e23d8fe7792e13dd4e024cfa9be6ba3`
`font_01_sfnt_off0000e338.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE338	10776 bytes
SHA-256: `f6ff1aba5923322cde78f1992a8c9128febe406a053272812192475317967620`

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