PDF malware analysis — malicious · 6d68a573cb74d484

MALICIOUS

PDF

54.7 KB Created: 2020-10-28 22:57:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27

MD5: c652588770529276fdbb232c0043079a SHA-1: 9eebfe2a96b7d8ede42159780f994f94e8ab1b90 SHA-256: 6d68a573cb74d4846dbb2a26d8908b305ae047f21887321ef534d35a3ae5cb26

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links, many of which are part of a link farm designed to improve search engine rankings. One critical heuristic identified a link to known malicious redirector infrastructure, specifically `https://ggtraff.ru/aws?keyword=microsoft+wireless+keyboard+1000+driver+windows+10`. This suggests the document is a lure, likely for phishing or malware distribution, by masquerading as a driver download. No scripts were extracted, but the presence of numerous links and the malicious redirector indicate a high likelihood of user interaction leading to a malicious site.

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://ggtraff.ru/aws?keyword=microsoft+wireless+keyboard+1000+driver+windows+10 In PDF document text
- https://derodaju.weebly.com/uploads/1/3/1/6/131606282/6087878.pdfIn PDF document text
- https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/mikukinib.pdfIn PDF document text
- https://setekonireza.weebly.com/uploads/1/3/4/1/134131298/9485598.pdfIn PDF document text
- https://movidotibapokab.weebly.com/uploads/1/3/4/2/134265591/ketokan.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/daraniwekamidir/35358759141.pdfIn PDF document text
- https://s3.amazonaws.com/wewuxuviwar/definicion_de_entropia_en_termodinamica.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0502/4920/3885/files/king_dedede_combo_guide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6766/9654/files/dolor_toracico_tipico_y_atipico.pdfIn PDF document text
- https://s3.amazonaws.com/rawesaragegugar/xirovuwi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fef83ba6-c401-4813-820c-7418896bc026/19817464295.pdfIn PDF document text
- https://s3.amazonaws.com/vuliwisuwig/19461148699.pdfIn PDF document text
- https://s3.amazonaws.com/sazixipame/xuruzokek.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0501/1187/3219/files/consola_behringer_xenyx_802_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0505/7619/5752/files/animated_wallpaper_download_for_android.pdfIn PDF document text
- https://s3.amazonaws.com/lanorolowu/precedence_network_diagram.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/be4f728a-c54e-440e-b6d9-b06abb29b349/giminefobapozum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4964/7270/files/sogalilowuxe.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a13549b7-48fc-400f-a41f-16af20342726/26365713549.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8021f715-9153-4fe6-af4b-7a27ee498fae/benolet.pdfIn PDF document text
- https://s3.amazonaws.com/ninazarila/33324190765.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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
`stream_005_off0000a546.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0xA546	23092 bytes
SHA-256: `31ff6efc470f27a572c9dd6bac214346e89e149fe680bccd4c0a2c199b1f59ad`
`font_00_sfnt_off00006c5f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6C5F	5672 bytes
SHA-256: `16d400b14661c852de20e6e350e194b151c6af54bc316447be90f6a7fafc2e24`
`font_01_sfnt_off00007fed.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7FED	11372 bytes
SHA-256: `35cbb9386c986d22529a6626c5c8205358125aa15bf5474975463c2380d027cb`

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