MALICIOUS — 05cdbc9c7e2fa5f81fd7723a086ac2f9a60843f5f2065c94a8d9dcd9735918bb

MALICIOUS — 05cdbc9c7e2fa5f81fd7723a086ac2f9a60843f5f2065c94a8d9dcd9735918bb is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Tovkater family. 4 of 56 detection engines flagged it, exhibiting 3 ATT&CK techniques.

Identification

SHA-256: 05cdbc9c7e2fa5f81fd7723a086ac2f9a60843f5f2065c94a8d9dcd9735918bb
SHA-1: b4b93f66ff71aae92ebe1b332aed8b023f2dc17c
MD5: 1d0acdb5d291cf7fb32d2a58699f9626
imphash: 7f0abc7bdb97ab0c2d9ea608f62e4e53
ssdeep: 6144:Go4UL9n9WoQY3hdW6PYg7//97AQpekX74qcfEHZqwRLriXeYAQOA3MhDcXV:Z+ob3hdWeYi/PYK7470JuXoQOgMhDaV
TLSH: T118472356A1695318EE928E6FAD438C2FE04523B04137D05C0857807F79E28EF39EBD99
Submitted as: 05cdbc9c7e2fa5f81fd7723a086ac2f9a60843f5f2065c94a8d9dcd9735918bb
File type: pe · Size: 325946 bytes
Verdict: malicious (100/100) · Family: Tovkater

Detections (4 of 56 engines)

ClamAV (daily): Win.Malware.Tovkater-6956309-0
Microsoft Defender: Trojan:Win32/Tovtaker!rfn
Emsisoft (Emergency Kit): Gen:Heur.Conjar.1
Kaspersky (KVRT): VHO:Trojan-Downloader.Win32.Convagent.gen

MITRE ATT&CK

Why this verdict

The malicious score of 100/100 is the fusion of 11 weighted signals:

ClamAV (daily) flagged Win.Malware.Tovkater-6956309-0 (rule Win.Malware.Tovkater-6956309-0) - engine signal, weight 0.90, confidence 0.95
Microsoft Defender flagged Trojan:Win32/Tovtaker!rfn (rule Trojan:Win32/Tovtaker!rfn) - engine signal, weight 0.55, confidence 0.85
Emsisoft (Emergency Kit) flagged Gen:Heur.Conjar.1 (rule Gen:Heur.Conjar.1) - engine signal, weight 0.55, confidence 0.85
Kaspersky (KVRT) flagged VHO:Trojan-Downloader.Win32.Convagent.gen (rule VHO:Trojan-Downloader.Win32.Convagent.gen) - engine signal, weight 0.55, confidence 0.85
1 IDS alert(s): ThreatLens DGA-style .top C2 lookup - network signal, weight 0.50, confidence 0.80
Observed at runtime: Windows Service (T1543.003) (rule Windows Service) - dynamic signal, weight 0.40, confidence 0.90
1 behavioral detection(s) across 1 rule(s): Windows Service Installation [medium] (rule tl-service-install) - dynamic signal, weight 0.40, confidence 0.90
Contacted 4 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
Embedded network infrastructure: http://nsis.sf.net/NSIS_Error - static signal, weight 0.35, confidence 0.60
Dropped 3 executable file(s) at runtime - dynamic signal, weight 0.20, confidence 0.60
Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90

Dynamic analysis (windows)

853 behavior events · 2 ATT&CK techniques · 4 dropped files.

Dropped files

C:\Users\analyst\AppData\Local\Temp\nssEABE.tmp\nsJSON.dll - a17f2d61b8045741af80c656baa4e1296a9a2bbd5f0dc90a55a7389f4c1c177e
C:\Users\analyst\AppData\Local\Temp\nssEABE.tmp\INetC.dll - c1e568e25ec111184deb1b87cfda4bfec529b1abeab39b66539d998012f33502
C:\Users\analyst\AppData\Local\Temp\nssEABE.tmp\xantacla.exe - 3154f92b9130256baa696dc08d6e6c59f5cc2172bcd30c48183674e1a7198970
f3944b9ffb5d038a4f4df9f2f6dec74dd5ca6e1ae63dc4d422535b0f7203ed2b - f3944b9ffb5d038a4f4df9f2f6dec74dd5ca6e1ae63dc4d422535b0f7203ed2b

Embedded URLs

http://nsis.sf.net/NSIS_Error
http://www.msftconnecttest.com/connecttest.txt
http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
http://rb.symcb.com/rb.crl

Embedded domains

nsis.sf.net
fruitnext.top

Embedded IP addresses

20.42.72.131
52.123.252.247
57.155.104.224
4.230.171.124
20.247.184.142
74.179.77.164
4.150.223.115
20.165.94.63
74.179.77.204
4.150.223.112
40.84.97.4
172.66.2.5
172.178.240.162
52.110.12.31
52.110.12.32

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report