PDF malware analysis — malicious · a7cceddf29ba336f

MALICIOUS

PDF

86.7 KB Created: 2021-01-25 09:58:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05

MD5: ed045b76322f7ebaae2071aa2310beee SHA-1: ced33b14a7cfe508186719cf6d5fe6d4f8052ae8 SHA-256: a7cceddf29ba336f798e05ee3e892b34c8f11a34f4af29301905f9518e88693e

186 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a link farm. It contains numerous external links, many pointing to disposable domains, suggesting an attempt to manipulate search engine results or distribute further malicious content. The document body is heavily obfuscated and contains what appears to be metadata rather than user-readable content.

Machine Learning

Nyx PDF Classifier malicious score 0.9983

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://leonvi.ru/aws?utm_term=raci+responsible+accountable+consulted+informed PDF link annotation
- https://cdn-cms.f-static.net/uploads/4475730/normal_5fd1011658adf.pdfIn PDF document text
- https://pasironukid.weebly.com/uploads/1/3/0/8/130814081/e4b09.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4480758/normal_5fd626bb3f680.pdfIn PDF document text
- https://nuniladolu.weebly.com/uploads/1/3/0/7/130775245/jadutuxuwukako.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4371812/normal_5fcebdb756ed9.pdfIn PDF document text
- https://dexulivixuwe.weebly.com/uploads/1/3/0/7/130739852/2871897.pdfIn PDF document text
- https://linebabeta.weebly.com/uploads/1/3/5/3/135317009/78493ea26876.pdfIn PDF document text
- https://ladolijid.weebly.com/uploads/1/3/2/8/132816107/2308060.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368221/normal_5fd2625017504.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4481056/normal_5fe7c211bbbc1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4371807/normal_5fdc058c69de4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4475988/normal_5fe97db61364d.pdfIn PDF document text
- https://tumurotijom.weebly.com/uploads/1/3/4/5/134512141/vasuzalexanebofel.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4489241/normal_5fe28c4a80244.pdfIn PDF document text
- https://cdn.sqhk.co/jogepirar/cqiaSap/koxofujuvanukotugasudapal.pdfIn PDF document text
- https://batigagonu.weebly.com/uploads/1/3/4/7/134774980/6918991.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4450139/normal_5fdf1ef1cbec3.pdfIn PDF document text
- https://duveniwapawas.weebly.com/uploads/1/3/4/2/134265961/gujowogulutek-zevekufuw.pdfIn PDF document text
- https://cdn.sqhk.co/bogulevim/iXggCja/jatanezamufirivodaduvu.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4383445/normal_5ffc760acd8fc.pdfIn PDF document text
- https://gewujezugiwo.weebly.com/uploads/1/3/4/7/134754524/wukax.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450259/normal_5fdbbdbddf804.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4459185/normal_5fea2f24efbd0.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://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
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000f675.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF675	5328 bytes
SHA-256: `d1b26eac8db77baedd0bf61d8262ba5c455b1093fa0ecc709441a2b387919412`
`font_01_sfnt_off0001086f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1086F	10888 bytes
SHA-256: `23ad1d21012043b4cf4c3c215bf83495c5c6c0fdb16ed2d0a933075c8ed1bbdb`
`font_02_sfnt_off00012d62.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12D62	4324 bytes
SHA-256: `cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34`
`font_03_sfnt_off00013b25.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x13B25	6084 bytes
SHA-256: `f5fe2de525700542684e23a11f1cb185b9ffab030677c6a48f3d5a1088c9e53b`

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