Analysis
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max time kernel
139s -
max time network
139s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
26-01-2021 15:56
Static task
static1
Behavioral task
behavioral1
Sample
6f9a9e4bf7982b48dda0ba7fd67c39d7.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
6f9a9e4bf7982b48dda0ba7fd67c39d7.exe
Resource
win10v20201028
General
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Target
6f9a9e4bf7982b48dda0ba7fd67c39d7.exe
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Size
1.2MB
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MD5
6f9a9e4bf7982b48dda0ba7fd67c39d7
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SHA1
41d9e74977d68ce1744744e6bfe0171d6b4b895e
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SHA256
7c6d1379dd3786047f63cb90f2f318c00ac1483c6a5f6e00ad8efb6240a6548c
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SHA512
03f450beb73ada241517cc8f03f48b4b4268a52766742e25e77fdab0ab0b916a29c6429a6a23c82991ff71571b76899db42b3dca8251dcda2385598ce19a894e
Malware Config
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger Payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/2576-29-0x0000000000400000-0x0000000000468000-memory.dmp family_snakekeylogger behavioral2/memory/2576-30-0x0000000000463B7E-mapping.dmp family_snakekeylogger -
Executes dropped EXE 2 IoCs
Processes:
rokg.exeInstallUtil.exepid process 2188 rokg.exe 2576 InstallUtil.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 2 IoCs
Processes:
reg.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\bme = "C:\\Users\\Admin\\rokg.exe" reg.exe Key created \REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run reg.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 24 freegeoip.app 25 freegeoip.app 21 checkip.dyndns.org -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of SetThreadContext 1 IoCs
Processes:
rokg.exedescription pid process target process PID 2188 set thread context of 2576 2188 rokg.exe InstallUtil.exe -
Suspicious behavior: EnumeratesProcesses 26 IoCs
Processes:
6f9a9e4bf7982b48dda0ba7fd67c39d7.exerokg.exeInstallUtil.exepid process 4052 6f9a9e4bf7982b48dda0ba7fd67c39d7.exe 4052 6f9a9e4bf7982b48dda0ba7fd67c39d7.exe 4052 6f9a9e4bf7982b48dda0ba7fd67c39d7.exe 4052 6f9a9e4bf7982b48dda0ba7fd67c39d7.exe 4052 6f9a9e4bf7982b48dda0ba7fd67c39d7.exe 4052 6f9a9e4bf7982b48dda0ba7fd67c39d7.exe 4052 6f9a9e4bf7982b48dda0ba7fd67c39d7.exe 4052 6f9a9e4bf7982b48dda0ba7fd67c39d7.exe 4052 6f9a9e4bf7982b48dda0ba7fd67c39d7.exe 4052 6f9a9e4bf7982b48dda0ba7fd67c39d7.exe 4052 6f9a9e4bf7982b48dda0ba7fd67c39d7.exe 4052 6f9a9e4bf7982b48dda0ba7fd67c39d7.exe 4052 6f9a9e4bf7982b48dda0ba7fd67c39d7.exe 4052 6f9a9e4bf7982b48dda0ba7fd67c39d7.exe 4052 6f9a9e4bf7982b48dda0ba7fd67c39d7.exe 4052 6f9a9e4bf7982b48dda0ba7fd67c39d7.exe 4052 6f9a9e4bf7982b48dda0ba7fd67c39d7.exe 2188 rokg.exe 2188 rokg.exe 2576 InstallUtil.exe 2576 InstallUtil.exe 2576 InstallUtil.exe 2576 InstallUtil.exe 2576 InstallUtil.exe 2576 InstallUtil.exe 2576 InstallUtil.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
6f9a9e4bf7982b48dda0ba7fd67c39d7.exerokg.exeInstallUtil.exedescription pid process Token: SeDebugPrivilege 4052 6f9a9e4bf7982b48dda0ba7fd67c39d7.exe Token: SeDebugPrivilege 2188 rokg.exe Token: SeDebugPrivilege 2576 InstallUtil.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
6f9a9e4bf7982b48dda0ba7fd67c39d7.execmd.exerokg.exedescription pid process target process PID 4052 wrote to memory of 3728 4052 6f9a9e4bf7982b48dda0ba7fd67c39d7.exe cmd.exe PID 4052 wrote to memory of 3728 4052 6f9a9e4bf7982b48dda0ba7fd67c39d7.exe cmd.exe PID 4052 wrote to memory of 3728 4052 6f9a9e4bf7982b48dda0ba7fd67c39d7.exe cmd.exe PID 3728 wrote to memory of 3712 3728 cmd.exe reg.exe PID 3728 wrote to memory of 3712 3728 cmd.exe reg.exe PID 3728 wrote to memory of 3712 3728 cmd.exe reg.exe PID 4052 wrote to memory of 2188 4052 6f9a9e4bf7982b48dda0ba7fd67c39d7.exe rokg.exe PID 4052 wrote to memory of 2188 4052 6f9a9e4bf7982b48dda0ba7fd67c39d7.exe rokg.exe PID 4052 wrote to memory of 2188 4052 6f9a9e4bf7982b48dda0ba7fd67c39d7.exe rokg.exe PID 2188 wrote to memory of 2576 2188 rokg.exe InstallUtil.exe PID 2188 wrote to memory of 2576 2188 rokg.exe InstallUtil.exe PID 2188 wrote to memory of 2576 2188 rokg.exe InstallUtil.exe PID 2188 wrote to memory of 2576 2188 rokg.exe InstallUtil.exe PID 2188 wrote to memory of 2576 2188 rokg.exe InstallUtil.exe PID 2188 wrote to memory of 2576 2188 rokg.exe InstallUtil.exe PID 2188 wrote to memory of 2576 2188 rokg.exe InstallUtil.exe PID 2188 wrote to memory of 2576 2188 rokg.exe InstallUtil.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\6f9a9e4bf7982b48dda0ba7fd67c39d7.exe"C:\Users\Admin\AppData\Local\Temp\6f9a9e4bf7982b48dda0ba7fd67c39d7.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4052 -
C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "bme" /t REG_SZ /d "C:\Users\Admin\rokg.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:3728 -
C:\Windows\SysWOW64\reg.exeREG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "bme" /t REG_SZ /d "C:\Users\Admin\rokg.exe"3⤵
- Adds Run key to start application
PID:3712
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C:\Users\Admin\rokg.exe"C:\Users\Admin\rokg.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2188 -
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2576
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
91c9ae9c9a17a9db5e08b120e668c74c
SHA150770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA256e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
SHA512ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
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MD5
91c9ae9c9a17a9db5e08b120e668c74c
SHA150770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA256e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
SHA512ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
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MD5
6f9a9e4bf7982b48dda0ba7fd67c39d7
SHA141d9e74977d68ce1744744e6bfe0171d6b4b895e
SHA2567c6d1379dd3786047f63cb90f2f318c00ac1483c6a5f6e00ad8efb6240a6548c
SHA51203f450beb73ada241517cc8f03f48b4b4268a52766742e25e77fdab0ab0b916a29c6429a6a23c82991ff71571b76899db42b3dca8251dcda2385598ce19a894e
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MD5
6f9a9e4bf7982b48dda0ba7fd67c39d7
SHA141d9e74977d68ce1744744e6bfe0171d6b4b895e
SHA2567c6d1379dd3786047f63cb90f2f318c00ac1483c6a5f6e00ad8efb6240a6548c
SHA51203f450beb73ada241517cc8f03f48b4b4268a52766742e25e77fdab0ab0b916a29c6429a6a23c82991ff71571b76899db42b3dca8251dcda2385598ce19a894e