Analysis
- max time kernel
116s - max time network
152s - platform
windows7_x64 - resource
win7-20220901-en - resource tags
- submitted
04/11/2022, 13:06
General
- Target file.exe
- Size 330KB
- Sample221104-qb3afshder
- SHA256 fcb4d2d2fad77fd8ec906d4397b1f231bdeb425de168f79a826d8c9faf52033b
Malware Config
Extracted
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redline
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bred
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77.73.134.251:4691
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auth_value
0e8ad10c690c62fa90b012542647f121
Signatures
- Amadey
Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.
- Detect Amadey credential stealer module 5 IoCs
- RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
- RedLine payload 4 IoCs
- Blocklisted process makes network request 1 IoCs
- Downloads MZ/PE file
- Executes dropped EXE 4 IoCs
- Loads dropped DLL 7 IoCs
- Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 27 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe"C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN rovwer.exe /TR "C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe" /F3⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\1000001001\bre.exe"C:\Users\Admin\AppData\Local\Temp\1000001001\bre.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\bf045808586a24\cred64.dll, Main3⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- outlook_win_path
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C:\Windows\system32\taskeng.exetaskeng.exe {0CE284DE-F888-41EE-9A8D-43D9E2C41F5F} S-1-5-21-4063495947-34355257-727531523-1000:RYNKSFQE\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exeC:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe2⤵
- Executes dropped EXE
-
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C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exeC:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe2⤵
- Executes dropped EXE
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
bre.exe
bre.exe
rovwer.exe
rovwer.exe
rovwer.exe
rovwer.exe
cred64.dll
bre.exe
rovwer.exe
rovwer.exe
cred64.dll
cred64.dll
cred64.dll
cred64.dll
memory/1456-54-0x0000000075B51000-0x0000000075B53000-memory.dmp
memory/1456-59-0x0000000002D4B000-0x0000000002D6A000-memory.dmp
memory/1456-60-0x0000000000220000-0x000000000025E000-memory.dmp
memory/1456-61-0x0000000000400000-0x0000000002C41000-memory.dmp
memory/1604-91-0x0000000000400000-0x0000000002C41000-memory.dmp
memory/1604-90-0x0000000002CEB000-0x0000000002D0A000-memory.dmp
memory/1692-66-0x0000000000400000-0x0000000002C41000-memory.dmp
memory/1692-65-0x0000000002D8B000-0x0000000002DAA000-memory.dmp
memory/1692-73-0x0000000000400000-0x0000000002C41000-memory.dmp
memory/1708-78-0x0000000000400000-0x0000000002C41000-memory.dmp
memory/1708-77-0x0000000002E3B000-0x0000000002E5A000-memory.dmp
memory/1744-86-0x0000000000131000-0x000000000014B000-memory.dmp
memory/1940-71-0x00000000010D0000-0x00000000010F8000-memory.dmp