PDF malware analysis — malicious · 5ef2471391289b75

MALICIOUS

PDF

72.4 KB Created: 2021-04-02 23:12:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30

MD5: 31f73e96069ecc1a00e34d741270840f SHA-1: 5463c22440f5a633512c28fac275dfd9e27361dd SHA-256: 5ef2471391289b75bc785b074275faa97565e98745753c9e7af5293279bcae97

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan' and an ML classifier indicating high maliciousness. The document contains numerous embedded URLs, with one prominent URL pointing to 'https://jottigo.ru/wix?keyword=ultimate+mma+conditioning+pdf+free+download', suggesting a phishing or malware distribution lure. The presence of multiple links and disposable hosting, as noted by the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic, further supports a malicious intent to redirect users to harmful content.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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://jottigo.ru/wix?keyword=ultimate+mma+conditioning+pdf+free+download PDF link annotation
- https://static.s123-cdn-static.com/uploads/4491686/normal_5fecae544e332.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375341/normal_60167f3c68fe1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366367/normal_5fe98a6aceef3.pdfIn PDF document text
- http://korecos.ru/ukulele_chords_songs3fcjf.pdfIn PDF document text
- http://vadukut.iblogger.org/68383824972.pdfIn PDF document text
- http://milansit.space/ralaligolfzsop.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4463275/normal_602eaeb6f05c8.pdfIn PDF document text
- http://gekalam.22web.org/94136130428.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4372740/normal_600d462c21063.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://vonimamodiji.rf.gd/26367088648.pdfIn PDF document text
- http://vaburerewixa.rf.gd/cahier_de_vacances_6eme.pdfIn PDF document text
- https://e29a9437-b0a5-48a6-9afa-908397ce514a.filesusr.com/ugd/16a9c1_951d2ba0e9f84676aa115f31f4ab8b39.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/8c94cdfe-b994-4011-9744-c9ef8a74e853/a_first_look_at_communication_theory_9th_edition.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/abebbe2a-991c-4082-bb84-e8cbc44a6687/76843321048.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/61a07e8a-8003-4ff5-8e78-d149b28c6157/xopiwoma.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/af32d2df-e70d-4d47-8307-7e2029a679c9/36135411661.pdfIn PDF document text
- https://80b1f93a-fe74-4439-a81d-34814fa7a505.filesusr.com/ugd/e56fe2_10701e338c0d4b53bd0c26f24fe0abfd.pdf?index=trueIn PDF document text
- http://bifuganikidaliv.epizy.com/el_alferez_real_gratis.pdfIn PDF document text
- https://832c8a8d-f05d-46e3-9166-97d9de82ace4.filesusr.com/ugd/432509_8192f0e7e3c142ee9e86b72013020627.pdf?index=trueIn PDF document text
- http://vuvumotelikev.rf.gd/mimasodijemijazutogolo.pdfIn PDF document text
- http://misamoxatupepos.rf.gd/degotifobadibapelitar.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000d178.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD178	5168 bytes
SHA-256: `98cafd902746a2a985a01fb723c38f213e2468c776f838a36ca69759c09c97a5`
`font_01_sfnt_off0000e2f7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE2F7	10276 bytes
SHA-256: `8d1a32d28588c08a49070944268a2c723fed5de013fdb6871ad1cda72fafac22`
`font_02_sfnt_off0001062d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1062D	4324 bytes
SHA-256: `ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3`

Open this report in the interactive analyzer, or submit your own file for analysis.