MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is a PDF identified as malicious by ClamAV and an ML classifier. It contains a large number of external links, many hosted on disposable domains, indicating a link farm or SEO manipulation tactic. One of the external links, 'https://zajinet.ru/strik?utm_term=how+to+change+code+on+schlage+push+button+door+lock', suggests a potential lure related to lock mechanisms, though the document body is heavily corrupted. The presence of numerous external links points towards a potential initial access vector via spearphishing attachment, leading to further exploitation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall 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.
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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://zajinet.ru/strik?utm_term=how+to+change+code+on+schlage+push+button+door+lock PDF link annotation
- http://1green.space/frosty_the_snowman_song_lyrics1fbm4.pdfIn PDF document text
- https://sidedelozamuk.weebly.com/uploads/1/3/1/4/131482822/9376953.pdfIn PDF document text
- http://nipawifaxupus.mygamesonline.org/botifugo.pdfIn PDF document text
- http://profapp.pro/how_long_should_i_cook_chicken_on_george_foreman_grillqp97m.pdfIn PDF document text
- http://muvepifare.mygamesonline.org/color_by_number_free.pdfIn PDF document text
- http://jesawukimefix.mypressonline.com/music_artist_profile.pdfIn PDF document text
- https://nusiteraj.weebly.com/uploads/1/3/5/3/135347212/1b3c3d3c9d9193.pdfIn PDF document text
- https://fukimeremunosav.weebly.com/uploads/1/3/1/3/131379236/3c76b3cbaef.pdfIn PDF document text
- http://haifaiv.ru/weridirukulisubitolepxhb1i.pdfIn PDF document text
- https://rigonabex.weebly.com/uploads/1/3/1/4/131483185/natakuvom-nojaf-vabovutebuve.pdfIn PDF document text
- https://fesifikigit.weebly.com/uploads/1/3/5/3/135319823/2652077.pdfIn PDF document text
- http://kinorio5.xyz/what_dog_is_tintin_snowyiqxhi.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://jumepenitujox.atwebpages.com/xavivokuzi.pdfIn PDF document text
- https://d4078116-a2d5-466f-97e6-20d899f6ca30.filesusr.com/ugd/576447_fcc47eec3fc54f6b80537ba47dbf2932.pdf?index=trueIn PDF document text
- http://woranuganavot.myartsonline.com/jezezesudafolurekevakoni.pdfIn PDF document text
- https://s3.amazonaws.com/welanisowari/why_was_allegiant_part_2_cancelled.pdfIn PDF document text
- https://s3.amazonaws.com/kiguteperilodu/38552603692.pdfIn PDF document text
- https://ecab545c-19d2-4654-b6ac-fb8b9749f5ba.filesusr.com/ugd/e5412a_7b1c7051995e494b8b5f45308bc216d3.pdf?index=trueIn PDF document text
- https://571cbd0a-ba82-408d-be6d-2df53a8fcfe5.filesusr.com/ugd/02af14_5baff94363fc4a83b12fe3e316103bb8.pdf?index=trueIn PDF document text
- http://megugasawixige.onlinewebshop.net/bando_v_belt_catalogue.pdfIn PDF document text
- https://s3.amazonaws.com/sifawekujiki/selinax.pdfIn PDF document text
- https://s3.amazonaws.com/zevutebulaworel/big_ideas_math_algebra_2_answers.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000124a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124A0 | 5592 bytes |
SHA-256: 481228e12def76d57d7a22355348ce89b53cda4e018d104f38b8a24f247f6326 |
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font_01_sfnt_off000137a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x137A7 | 13560 bytes |
SHA-256: dd89aba909d1d36843c5d65e8ab50c041b059c8b06e393e15285deac444466e9 |
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