PDF malware analysis — malicious · 0dd9dd3c7015cd27

MALICIOUS

PDF

56.8 KB Created: 2020-10-29 05:58:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: c25bd08fbd9ee195f7abf99cfb13d08c SHA-1: dbcdfb799b9ea1853828efe3144cd653495e7228 SHA-256: 0dd9dd3c7015cd2782632260cb72691b3f9d8ccc325f6da0ab07852daedd2f01

162 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by an ML classifier. It uses an invoice-themed lure. The file embeds a large number of external links characteristic of an SEO link farm and routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

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.
Fake invoice / payment lure low SE_INVOICE_LURE

Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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://ggtraff.ru/123?keyword=gbf+dark+character+tier+list In PDF document text
- https://cdn-cms.f-static.net/uploads/4365540/normal_5f8f33152bc3d.pdfIn PDF document text
- https://xotiroxo.weebly.com/uploads/1/3/0/7/130776105/bupux.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4422372/normal_5f9a05ebbd731.pdfIn PDF document text
- https://kapekutom.weebly.com/uploads/1/3/4/4/134437999/mededutiliwenu-sogufoliwikenu-dejulezalet.pdfIn PDF document text
- https://tivakoxidedopa.weebly.com/uploads/1/3/0/7/130776298/7854898.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://s3.amazonaws.com/baxegezivumi/air-lap1242ag-a-k9_factory_reset.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0499/9692/3040/files/75620347626.pdfIn PDF document text
- https://s3.amazonaws.com/gifiz/dinofiviriz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0480/5797/4948/files/7383695983.pdfIn PDF document text
- https://s3.amazonaws.com/baxegezivumi/paypal_payment_receipt.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0502/5854/2760/files/12240433270.pdfIn PDF document text
- https://s3.amazonaws.com/xanebavifamopez/16295426209.pdfIn PDF document text
- https://s3.amazonaws.com/mijedusovineti/tufimubaze.pdfIn PDF document text
- https://s3.amazonaws.com/dovulavavo/domain_driven_design_reference.pdfIn PDF document text
- https://s3.amazonaws.com/bepukuba/68437747402.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3697/3975/files/fruit_infuser_water_bottle_target.pdfIn PDF document text
- https://s3.amazonaws.com/tobobowu/how_to_make_clay_in_minecraft.pdfIn PDF document text
- https://s3.amazonaws.com/zifozujiwi/biology_book_campbell_8th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0475/4259/9846/files/the_circuit_book_tennis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0495/9889/0150/files/xemenu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/9052/3813/files/kumeliwabegi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1030/9787/files/78002625192.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0479/6327/5431/files/duvuboregi.pdfIn PDF document text
- https://s3.amazonaws.com/wonoti/90832334043.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7182/3262/files/farmall_h_manual_free.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_off00009141.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9141	4916 bytes
SHA-256: `d2169152cbe996ed270d3cc68bfbcc012f9e1c11c49ec7a4926ef3821d8b7def`
`font_01_sfnt_off0000a217.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA217	11020 bytes
SHA-256: `2ec34fd5c9e908209bc29212d54e73da9d90ae9d210c31430b26fd3dee895c1c`
`font_02_sfnt_off0000c79f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC79F	4324 bytes
SHA-256: `d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378`

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