MALICIOUS — lukaru.pdf

MALICIOUS — lukaru.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (78/100). 2 of 53 detection engines flagged it.

Identification

• SHA-256: 179268ba1783b867dee0a4b1665930b33a1fabdb4619ba493ab6f85643da1315
• SHA-1: 3f6543e884952f23ab2ec719605c59675d9f2b0e
• MD5: e1500846d2f30e57c08faf03292d9cd3
• ssdeep: 1536:lGFv5Nabda1oI3xRKUV1+gSe+b8F1+3WXBkdFdIX3SKwvd:4Fv5N51oI3xRxTJ+b8FokBkndV
• TLSH: T11033AFF340ABED8C6BC6BB479DEA1019A159D24C71329AB05488376CC4BC7FDAE10991
• Submitted as: lukaru.pdf
• File type: pdf · Size: 50016 bytes
• Verdict: malicious (78/100)

Detections (2 of 53 engines)

• MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
• Emsisoft (Emergency Kit): PDF.Spam.Heur.1

Why this verdict

The malicious score of 78/100 is the fusion of 5 weighted signals:

• Emsisoft (Emergency Kit) flagged PDF.Spam.Heur.1 (rule PDF.Spam.Heur.1) - engine signal, weight 0.55, confidence 0.85
• MalwareAnalyser heuristics (entropy/packer) flagged high-entropy-blob (rule high-entropy-blob) - engine signal, weight 0.35, confidence 0.70
• Embedded network infrastructure: https://ggtraff.ru/strik?keyword=vapour+absorption+machine+working+principle+pdf, https://site-1037276.mozfiles.com/files/1037276/48560879004.pdf, https://site-1036713.mozfiles.com/files/1036713/rimoregufumanepax.pdf - static signal, weight 0.35, confidence 0.60
• Document active content: uri-action - static signal, weight 0.30, confidence 0.60
• Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55

Dynamic analysis

No runtime behaviour was captured for this sample, so the analysis above is static only. That is a limit of this run rather than evidence the sample does nothing.

Embedded URLs

• https://ggtraff.ru/strik?keyword=vapour+absorption+machine+working+principle+pdf
• https://site-1037276.mozfiles.com/files/1037276/48560879004.pdf
• https://site-1036713.mozfiles.com/files/1036713/rimoregufumanepax.pdf
• https://site-1036868.mozfiles.com/files/1036868/sofikivom.pdf
• https://site-1036991.mozfiles.com/files/1036991/42655941035.pdf
• https://uploads.strikinglycdn.com/files/e5e36aab-2357-4580-bac7-0907e0646e0e/newanineluliravivesufafed.pdf
• https://uploads.strikinglycdn.com/files/5e0db2e4-53b1-459c-b624-a05ec7390387/fawatekelov.pdf
• https://site-1036635.mozfiles.com/files/1036635/32640439878.pdf
• https://site-1036823.mozfiles.com/files/1036823/wubisubo.pdf
• https://cdn.shopify.com/s/files/1/0437/1274/1525/files/bsc_math_notes.pdf
• https://cdn.shopify.com/s/files/1/0427/4615/1078/files/telecharger_cours_d_anglais_debutant.pdf
• https://cdn.shopify.com/s/files/1/0433/9276/2006/files/zugedikorupoxogabeda.pdf
• https://cdn.shopify.com/s/files/1/0439/4627/9080/files/game_apk_hack_ios.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/

Embedded domains

• ggtraff.ru
• site-1037276.mozfiles.com
• site-1036713.mozfiles.com
• site-1036868.mozfiles.com
• site-1036991.mozfiles.com
• uploads.strikinglycdn.com
• site-1036635.mozfiles.com
• site-1036823.mozfiles.com
• cdn.shopify.com
• www.w3.org
• purl.org
• ns.adobe.com

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