MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains a large number of external links, forming a link farm, with the primary URL being traffiking.ru. The document body, though heavily obfuscated, suggests a "lost receipt form" lure, likely intended to trick users into clicking the embedded malicious links. The presence of numerous external PDF links points towards a campaign to distribute further malicious content or engage in SEO manipulation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
Heuristics 5
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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://traffking.ru/aws?keyword=lost+receipt+form+pdf
- https://cdn-cms.f-static.net/uploads/4408335/normal_5fa95922d9291.pdf
- https://vidojibirulon.weebly.com/uploads/1/3/1/0/131070792/bba0b.pdf
- https://togitarusufojir.weebly.com/uploads/1/3/2/6/132681229/3262999.pdf
- https://lizosodomig.weebly.com/uploads/1/3/4/3/134327767/geruviwiwifo.pdf
- https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/dekefomivupe-kovak-talajonipa-fedebiraroz.pdf
- https://kafigibedup.weebly.com/uploads/1/3/4/4/134479504/xasixemezupuzet_guxakibi_dedokosimixo_kosej.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://s3.amazonaws.com/potevip/plural_of_deer_in_hindi.pdf
- https://s3.amazonaws.com/kovilowab/7106447562.pdf
- https://s3.amazonaws.com/puretulenuza/ap_chemistry_review_worksheet_unit_7_kinetics.pdf
- https://s3.amazonaws.com/kavitokolezub/kalasibavuk.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d135.bin43ac650d64c51d38eb47180dc1d0c5a118f0ffa3f5aa65ed7513778760a11974 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD135 | 4684 bytes |
font_01_sfnt_off0000e125.bin03058b82f11211a794b7fcf69439e88719bb52d5b7fade2cb82540566bcaa231 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE125 | 9872 bytes |
font_02_sfnt_off000102ed.bin1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102ED | 4324 bytes |
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