MALICIOUS — aca8d820afc61815a276f4810f5effaf71ad5dc8990b60323a1d1361654c63e3

MALICIOUS — aca8d820afc61815a276f4810f5effaf71ad5dc8990b60323a1d1361654c63e3 is a script sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (97/100), attributed to the Cryxos family. 1 of 51 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

• SHA-256: aca8d820afc61815a276f4810f5effaf71ad5dc8990b60323a1d1361654c63e3
• SHA-1: 3c9073a41594d655027809aa19cb575b1f49209e
• MD5: af1da11f0eb6ce5050f5873b60f8d7b9
• ssdeep: 96:m5Ev4FfbFSCGG/iSrXZlCytT81FADm3RVSLj:yEEfbFSCGciSrDCytT81FADMRVSLj
• TLSH: T14D1ACFF69B317EEFAF8625C5690D2DAF060320C3B840A959E948ADC55C63C991F1CC5C
• Submitted as: aca8d820afc61815a276f4810f5effaf71ad5dc8990b60323a1d1361654c63e3
• File type: script · Size: 4439 bytes
• Verdict: malicious (97/100) · Family: Cryxos

Detections (1 of 51 engines)

• Emsisoft (Emergency Kit): JS:Trojan.Cryxos.6249

MITRE ATT&CK

• T1105
• T1059.004

Why this verdict

The malicious score of 97/100 is the fusion of 10 weighted signals:

• 1 behavioral detection(s): Download-and-execute dropper (wget/curl + chmod) [high] (rule tl-linux-download-exec) - dynamic signal, weight 0.60, confidence 0.90
• 1 behavioral detection(s): Download-and-execute dropper (wget/curl + chmod) [high] (rule tl-linux-download-exec) - dynamic signal, weight 0.60, confidence 0.90
• Emsisoft (Emergency Kit) flagged JS:Trojan.Cryxos.6249 (rule JS:Trojan.Cryxos.6249) - engine signal, weight 0.55, confidence 0.85
• Anti-analysis: T1497 - dynamic signal, weight 0.40, confidence 0.75
• Anti-analysis: T1497 - dynamic signal, weight 0.40, confidence 0.75
• Embedded network infrastructure: http://rediskina.com/f/gstats - static signal, weight 0.35, confidence 0.60
• Contacted 10 external host(s) at runtime - network signal, weight 0.12, confidence 0.55
• Contacted 10 external host(s) at runtime - network signal, weight 0.12, confidence 0.55
• Extracted generic config (1 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
• Extracted generic config (1 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30

Dynamic analysis (linux)

858 behavior events · 0 ATT&CK techniques · 1 dropped files.

Runtime network

• ntp.ubuntu.com
• entropy.ubuntu.com
• desktop-hsgcbep
• _dosvc._tcp.local
• b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• 3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• 252.0.0.224.in-addr.arpa
• 2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• 185.125.189.53:443
• 185.125.189.53
• 10.240.0.1
• ff02::1:3
• 224.0.0.252
• 224.0.0.251
• 10.240.0.255
• ff02::fb
• 52.148.114.188
• ff02::1
• ff02::16
• ff02::1:ff12:3456

Dropped files

• tmp_tmp.BSbVIuERv0 - 9775507f8e26241e22973c44b190f6c519cc4aa97630e074584d966759636004

Embedded URLs

• http://rediskina.com/f/gstats

Embedded domains

• rediskina.com

Embedded IP addresses

• 52.148.114.188
• 13.89.179.12
• 203.26.79.13
• 199.232.138.172
• 135.233.95.144
• 150.171.22.17

More Cryxos samples · Latest analyzed threats · ATT&CK coverage

Analyzed on MalwareAnalyzer by Cyble · Open interactive report