PDF malware analysis — malicious · 98eda0214f08a915

MALICIOUS

PDF

55.0 KB Created: 2020-10-25 12:08:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22

MD5: ea3774e229a22ac27f40a8ba6c526dae SHA-1: 1c97045a3d360c171a5bda0babc1000ebb0226d5 SHA-256: 98eda0214f08a915bff65c0c321f3b559b069205249b9c402382902968994cfc

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links, one of which, 'https://cctraff.ru/strik?keyword=clash+of+clans+best+th7+base', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting a lure to trick users into clicking it. The presence of numerous other PDF links further indicates a link farm or SEO poisoning attempt, aiming to drive traffic to potentially malicious sites.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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.
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.
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://cctraff.ru/strik?keyword=clash+of+clans+best+th7+base In PDF document text
- https://koxabiwepa.weebly.com/uploads/1/3/4/3/134309970/sapagob.pdfIn PDF document text
- https://kurikezexiwu.weebly.com/uploads/1/3/0/7/130775092/d92803473bd92.pdfIn PDF document text
- https://sokuvotaboraj.weebly.com/uploads/1/3/0/7/130776263/d0ef8f3.pdfIn PDF document text
- https://zegojipoxe.weebly.com/uploads/1/3/1/0/131069766/xemobubax.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368768/normal_5f87d99b6be64.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366348/normal_5f874be500a8c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368772/normal_5f93f94d98500.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4373520/normal_5f93f75fac0cc.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4394060/normal_5f910073d6af1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4403418/normal_5f92327bc3b08.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366622/normal_5f8c672e6ff72.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/gupuso/22979218732.pdfIn PDF document text
- https://s3.amazonaws.com/fonazuzixagizir/bilivamurem.pdfIn PDF document text
- https://s3.amazonaws.com/pazifetanegapu/al_quran_bangla_darussalam.pdfIn PDF document text
- https://s3.amazonaws.com/bupaxomu/sinaxi.pdfIn PDF document text
- https://s3.amazonaws.com/vekodupiwarobi/free_download_book_wings_of_fire.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2417/0659/files/authors_craft_anchor_chart.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0499/8332/4320/files/vatozililabip.pdfIn PDF document text
- https://s3.amazonaws.com/zamuriza/75846047926.pdfIn PDF document text
- https://s3.amazonaws.com/wilugugo/zuzazelajoraveweko.pdfIn PDF document text
- https://s3.amazonaws.com/wunupalezozerud/zumufijoxizini.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00007a83.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7A83	4996 bytes
SHA-256: `38fb6f0b0763ef6b2a7ad9d83ebf8b945e68a630d550158a6da52c77d1a234d1`
`font_01_sfnt_off00008b81.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8B81	2492 bytes
SHA-256: `ef0bcd0a2ab768c4324d690bbede84adb6854cea31401c1a5c29310b2e9f6072`
`font_02_sfnt_off00009641.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9641	10076 bytes
SHA-256: `5d29595396672e1ad4e73612504cb4f1e98c157e9f0c09ebf17e867378669da5`
`font_03_sfnt_off0000b8fa.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB8FA	16232 bytes
SHA-256: `cc032a1d7efe9f52c63bdca4360dad9aff78fb14a47167d9e0089e6cc9416013`

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