Analysis
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max time kernel
75s -
max time network
113s -
platform
windows10_x64 -
resource
win10 -
submitted
02-09-2020 00:37
Static task
static1
Behavioral task
behavioral1
Sample
c7f6e7.exe
Resource
win7v200722
Behavioral task
behavioral2
Sample
c7f6e7.exe
Resource
win10
General
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Target
c7f6e7.exe
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Size
496KB
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MD5
03956e61a60d13b50142b39ae86daef9
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SHA1
33213c17c18e89b13a5bfe6f5ac93fec18b19918
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SHA256
c91e2df02ad2c8ccadc96054bceee4422382caa62d443e2633a003e4ce5c7476
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SHA512
a948adf8cefa1b25425f5e48107bb020d302c01f8568ac4b8dc327290aa6064249a20f67d19a82752bfd4bd85f2c7032f364fa11677a11b751fe8723ac2a4aa9
Malware Config
Extracted
C:\Users\Admin\AppData\LocalLow\machineinfo.txt
raccoon
Signatures
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Raccoon log file 1 IoCs
Detects a log file produced by the Raccoon Stealer.
Processes:
yara_rule raccoon_log_file -
Loads dropped DLL 8 IoCs
Processes:
c7f6e7.exepid process 3900 c7f6e7.exe 3900 c7f6e7.exe 3900 c7f6e7.exe 3900 c7f6e7.exe 3900 c7f6e7.exe 3900 c7f6e7.exe 3900 c7f6e7.exe 3900 c7f6e7.exe -
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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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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JavaScript code in executable 1 IoCs
Processes:
resource yara_rule \Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\nss3.dll js -
Drops file in Windows directory 1 IoCs
Processes:
svchost.exedescription ioc process File opened for modification C:\Windows\ServiceProfiles\LocalService\winhttp\cachev3.dat svchost.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 2244 timeout.exe -
Modifies data under HKEY_USERS 5 IoCs
Processes:
svchost.exedescription ioc process Set value (data) \REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7\WpadDecisionTime = 24247bafc180d601 svchost.exe Set value (int) \REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7\WpadDecision = "0" svchost.exe Key created \REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad svchost.exe Key created \REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7 svchost.exe Set value (int) \REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7\WpadDecisionReason = "1" svchost.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
svchost.exedescription pid process Token: SeShutdownPrivilege 3328 svchost.exe Token: SeCreatePagefilePrivilege 3328 svchost.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
c7f6e7.execmd.exedescription pid process target process PID 3900 wrote to memory of 2560 3900 c7f6e7.exe cmd.exe PID 3900 wrote to memory of 2560 3900 c7f6e7.exe cmd.exe PID 3900 wrote to memory of 2560 3900 c7f6e7.exe cmd.exe PID 2560 wrote to memory of 2244 2560 cmd.exe timeout.exe PID 2560 wrote to memory of 2244 2560 cmd.exe timeout.exe PID 2560 wrote to memory of 2244 2560 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c7f6e7.exe"C:\Users\Admin\AppData\Local\Temp\c7f6e7.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.execmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\c7f6e7.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout /T 10 /NOBREAK3⤵
- Delays execution with timeout.exe
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalService -s WinHttpAutoProxySvc1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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\Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\freebl3.dll
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\Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\freebl3.dll
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\Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\freebl3.dll
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\Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\mozglue.dll
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\Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\nss3.dll
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\Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\softokn3.dll
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\Users\Admin\AppData\LocalLow\3098htrhpen8ifg0\softokn3.dll
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\Users\Admin\AppData\LocalLow\sqlite3.dll
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memory/2244-11-0x0000000000000000-mapping.dmp
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memory/2560-10-0x0000000000000000-mapping.dmp
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memory/3900-0-0x0000000000B83000-0x0000000000B84000-memory.dmpFilesize
4KB
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memory/3900-1-0x0000000001100000-0x0000000001101000-memory.dmpFilesize
4KB