PDF malware analysis — malicious · cc30d7406a1965cb

MALICIOUS

PDF

79.1 KB Created: 2021-04-14 23:58:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21

MD5: 0de27ee24f991e69bc2c326cc1676528 SHA-1: 7dbd68e272156fad16b4b52c59dac1dd5e39de1b SHA-256: cc30d7406a1965cb072f6efb10dbd8469de89e10e5ea54a3b136a76e0ef67c2f

186 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many pointing to disposable domains, suggesting a link farm used for phishing or malware distribution. The document body, though heavily corrupted, appears to be a lure disguised as a user manual.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

Heuristics 6

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.
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://maypoin.ru/strik?utm_term=my+passport+ultra+for+mac+user+manual PDF link annotation
- http://nopotaz.medianewsonline.com/93209899874.pdfIn PDF document text
- http://vitalia-transports.com/752340407141gxba.pdfIn PDF document text
- http://fesurowejo.mywebcommunity.org/cabala_judia.pdfIn PDF document text
- http://abzac.me/51230296595zx8tj.pdfIn PDF document text
- https://wajabanafeku.weebly.com/uploads/1/3/4/5/134599300/2596208.pdfIn PDF document text
- https://befomunuduti.weebly.com/uploads/1/3/1/1/131164266/7824716.pdfIn PDF document text
- http://train-home.ru/father_son_barber_fairhope_alnpji4.pdfIn PDF document text
- http://trudogoliya.online/starhub_tvb_programme_guidedazum.pdfIn PDF document text
- http://zdorovienashevse.xyz/tigasipazejeq0hq4.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
- https://09235f31-469a-4613-94fc-36d04c1f642a.filesusr.com/ugd/8b6407_ae378654d46d46769702da8117cf9eb1.pdf?index=trueIn PDF document text
- https://85fc0914-20e3-4f1c-be8c-de7e6f89f47e.filesusr.com/ugd/a44510_80c1e802127248b8bce3e324052eb3bc.pdf?index=trueIn PDF document text
- http://kuxubakelixuzot.atwebpages.com/simple_bending_equation.pdfIn PDF document text
- http://siwemoxoxawevuv.atwebpages.com/gofaxogewagegekisoxewone.pdfIn PDF document text
- https://b32521b7-32ca-447e-9967-d27d0dce683d.filesusr.com/ugd/800b88_b1835865fa9149a0ba80e46a3ea3fc95.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/ronatiduzoxij/wexokujapoponatido.pdfIn PDF document text
- https://5b3fc17b-a4fb-4144-9a53-ff617e35bc6a.filesusr.com/ugd/696117_9e910e263b534a92ac60a84c5b65e43b.pdf?index=trueIn PDF document text
- http://kexomun.myartsonline.com/how_a_bill_becomes_a_law_worksheet_3rd_grade.pdfIn PDF document text
- https://b998fa74-583e-446a-a2a7-67f41460fdb2.filesusr.com/ugd/e081f8_bd205dc7e9774672a9ed9c7a2a733849.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/mejobu/86111238404.pdfIn PDF document text
- https://s3.amazonaws.com/tanapilamaxi/39056563016.pdfIn PDF document text
- https://s3.amazonaws.com/satudifin/plot_outline_template_google_docs.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_off0000e851.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE851	5100 bytes
SHA-256: `57154f65010f16e7ebccaad93e1819d40d69b6a02435185ae21e2d1ac0354020`
`font_01_sfnt_off0000f99a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF99A	11432 bytes
SHA-256: `869074b6765b5a894c7cccc6c9ca5ae902dd1e7cef174860a3b3d8abbac418ad`
`font_02_sfnt_off00012086.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12086	4324 bytes
SHA-256: `1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e`

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