Analysis
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max time kernel
123s -
max time network
135s -
platform
windows10-2004_x64 -
resource
win10v2004-20230703-en -
resource tags
arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system -
submitted
03/08/2023, 15:47
Static task
static1
Behavioral task
behavioral1
Sample
3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe
Resource
win10v2004-20230703-en
General
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Target
3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe
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Size
563KB
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MD5
a3a0f7c65d064edfcb7e72361aacc6ab
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SHA1
ce1635ae1b2e9efb91030ed135069513d226c262
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SHA256
3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009
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SHA512
9efd3fc52d4896247a2ba427bbcf156be6ab1ef68281d9af493a090d0ef01e2aa8d572d89028797fe3eeb99c5c367b1e69d0077039f471a69c36850c5195ad8a
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SSDEEP
6144:JEDeFkyh1E/65Q7nEbxFUPKpgr3UGwh1E/65Q7nEhe82wWMaYEYbxFUPKpgr3Ugs:WDeFSp0465c2Jc6Zeq91im6omxg
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
mail.sienkakupeste.com - Port:
587 - Username:
[email protected] - Password:
010203sienka++ - Email To:
[email protected]
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 1 IoCs
resource yara_rule behavioral2/memory/4212-152-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger -
Drops startup file 2 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe Powershell.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe Powershell.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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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 29 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3384 set thread context of 4212 3384 3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe 87 -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 5012 Powershell.exe 4212 3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe 5012 Powershell.exe 4212 3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 5012 Powershell.exe Token: SeDebugPrivilege 4212 3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 3384 wrote to memory of 5012 3384 3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe 85 PID 3384 wrote to memory of 5012 3384 3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe 85 PID 3384 wrote to memory of 5012 3384 3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe 85 PID 3384 wrote to memory of 4212 3384 3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe 87 PID 3384 wrote to memory of 4212 3384 3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe 87 PID 3384 wrote to memory of 4212 3384 3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe 87 PID 3384 wrote to memory of 4212 3384 3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe 87 PID 3384 wrote to memory of 4212 3384 3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe 87 PID 3384 wrote to memory of 4212 3384 3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe 87 PID 3384 wrote to memory of 4212 3384 3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe 87 PID 3384 wrote to memory of 4212 3384 3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe"C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3384 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe"Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe'2⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5012
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C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe"C:\Users\Admin\AppData\Local\Temp\3399fc936d74594ca467f3e0224eba655e854ea064f0c11f311ce6c72f3dc009exe_JC.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4212
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82