Analysis
- max time kernel
150s - max time network
130s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
24/12/2022, 20:02
General
- Target file.exe
- Size 224KB
- Sample221224-yr4r8aae63
- SHA256 92da77096209012e820e95702b7d0e21656398606b1aa030402f970e6cfa08e8
Malware Config
Extracted
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redline
-
mario23_10
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167.235.252.160:10642
-
auth_value
eca57cfb5172f71dc45986763bb98942
Extracted
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djvu
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http://ex3mall.com/lancer/get.php
-
extension
.isza
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offline_id
m3KmScxfDyEQzJYP8qjOSfP4FvpsOXlekGuMPzt1
-
payload_url
http://uaery.top/dl/build2.exe
http://ex3mall.com/files/1/build3.exe
-
ransomnote
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Extracted
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amadey
-
3.61
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62.204.41.79/U7vfDb3kg/index.php
Signatures
- Amadey
Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.
- DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
- Detect Amadey credential stealer module 2 IoCs
- Detected Djvu ransomware 11 IoCs
- Detects Smokeloader packer 2 IoCs
- Djvu Ransomware
Ransomware which is a variant of the STOP family.
- RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
- RedLine payload 2 IoCs
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Blocklisted process makes network request 3 IoCs
- Downloads MZ/PE file
- Executes dropped EXE 17 IoCs
- Checks computer location settings 2 TTPs 5 IoCs
Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL 4 IoCs
- Modifies file permissions 1 TTPs 1 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 2FA software files, possible credential harvesting 2 TTPs
- Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
- Accesses Microsoft Outlook profiles 1 TTPs 5 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.
- Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 5 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 7 IoCs
- Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Checks processor information in registry 2 TTPs 26 IoCs
Processor information is often read in order to detect sandboxing environments.
- Creates scheduled task(s) 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Delays execution with timeout.exe 1 IoCs
- Modifies Internet Explorer settings 1 TTPs 4 IoCs
- Modifies registry class 30 IoCs
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 2 IoCs
- Suspicious use of AdjustPrivilegeToken 58 IoCs
- Suspicious use of FindShellTrayWindow 10 IoCs
- Suspicious use of SendNotifyMessage 1 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 64 IoCs
- outlook_office_path 1 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⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
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C:\Users\Admin\AppData\Local\Temp\D640.exeC:\Users\Admin\AppData\Local\Temp\D640.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"2⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2036 -s 2442⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2036 -ip 20361⤵
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C:\Users\Admin\AppData\Local\Temp\E19C.exeC:\Users\Admin\AppData\Local\Temp\E19C.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\E19C.exeC:\Users\Admin\AppData\Local\Temp\E19C.exe2⤵
- Executes dropped EXE
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\512123ec-bc0f-4121-8ecd-eb69e30923a9" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
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C:\Users\Admin\AppData\Local\Temp\E19C.exe"C:\Users\Admin\AppData\Local\Temp\E19C.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\E19C.exe"C:\Users\Admin\AppData\Local\Temp\E19C.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\787db0ab-db9b-4822-884a-0205d16304a9\build2.exe"C:\Users\Admin\AppData\Local\787db0ab-db9b-4822-884a-0205d16304a9\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\787db0ab-db9b-4822-884a-0205d16304a9\build2.exe"C:\Users\Admin\AppData\Local\787db0ab-db9b-4822-884a-0205d16304a9\build2.exe"6⤵
- Executes dropped EXE
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\787db0ab-db9b-4822-884a-0205d16304a9\build2.exe" & exit7⤵
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C:\Windows\SysWOW64\timeout.exetimeout /t 68⤵
- Delays execution with timeout.exe
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C:\Users\Admin\AppData\Local\787db0ab-db9b-4822-884a-0205d16304a9\build3.exe"C:\Users\Admin\AppData\Local\787db0ab-db9b-4822-884a-0205d16304a9\build3.exe"5⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"6⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\E546.exeC:\Users\Admin\AppData\Local\Temp\E546.exe1⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\35731ceaf0\gntuud.exe"C:\Users\Admin\AppData\Local\Temp\35731ceaf0\gntuud.exe"2⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN gntuud.exe /TR "C:\Users\Admin\AppData\Local\Temp\35731ceaf0\gntuud.exe" /F3⤵
- Creates scheduled task(s)
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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
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3336 -s 9002⤵
- Program crash
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C:\Users\Admin\AppData\Local\Temp\ECE8.exeC:\Users\Admin\AppData\Local\Temp\ECE8.exe1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3336 -ip 33361⤵
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C:\Users\Admin\AppData\Local\Temp\F14E.exeC:\Users\Admin\AppData\Local\Temp\F14E.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3272 -s 3442⤵
- Program crash
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C:\Users\Admin\AppData\Local\Temp\F585.exeC:\Users\Admin\AppData\Local\Temp\F585.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1960 -s 3442⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3272 -ip 32721⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 1960 -ip 19601⤵
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C:\Users\Admin\AppData\Local\Temp\35731ceaf0\gntuud.exeC:\Users\Admin\AppData\Local\Temp\35731ceaf0\gntuud.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2036 -s 3162⤵
- Program crash
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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exeC:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"2⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 2036 -ip 20361⤵
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C:\Users\Admin\AppData\Local\Temp\678A.exeC:\Users\Admin\AppData\Local\Temp\678A.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\Dfuqft.tmp",Dsdupihuqo2⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Accesses Microsoft Outlook accounts
- Accesses Microsoft Outlook profiles
- Suspicious use of SetThreadContext
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- outlook_office_path
- outlook_win_path
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C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 223263⤵
- Modifies registry class
- Suspicious use of FindShellTrayWindow
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C:\Windows\SysWOW64\schtasks.exeschtasks /End /tn \Microsoft\Windows\Wininet\CacheTask3⤵
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C:\Windows\SysWOW64\schtasks.exeschtasks /Run /tn \Microsoft\Windows\Wininet\CacheTask3⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2624 -s 5322⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2624 -ip 26241⤵
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵
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C:\Users\Admin\AppData\Local\Temp\35731ceaf0\gntuud.exeC:\Users\Admin\AppData\Local\Temp\35731ceaf0\gntuud.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5000 -s 3162⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 600 -p 5000 -ip 50001⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
mozglue.dll
nss3.dll
07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
E19C.exe
build2.exe
build2.exe
build2.exe
build3.exe
build3.exe
gntuud.exe
gntuud.exe
gntuud.exe
gntuud.exe
678A.exe
678A.exe
D640.exe
D640.exe
Dfuqft.tmp
Dfuqft.tmp
E19C.exe
E19C.exe
E19C.exe
E19C.exe
E19C.exe
E546.exe
E546.exe
ECE8.exe
ECE8.exe
F14E.exe
F14E.exe
F585.exe
F585.exe
mstsca.exe
mstsca.exe
cred64.dll
cred64.dll
memory/308-187-0x0000000005DC0000-0x0000000005E26000-memory.dmp
memory/308-149-0x00000000059E0000-0x0000000005A1C000-memory.dmp
memory/308-148-0x0000000005980000-0x0000000005992000-memory.dmp
memory/308-140-0x0000000000400000-0x0000000000460000-memory.dmp
memory/308-146-0x0000000005EF0000-0x0000000006508000-memory.dmp
memory/308-147-0x0000000005A50000-0x0000000005B5A000-memory.dmp
memory/308-189-0x0000000009180000-0x00000000096AC000-memory.dmp
memory/308-188-0x0000000006DD0000-0x0000000006F92000-memory.dmp
memory/308-185-0x0000000005D20000-0x0000000005DB2000-memory.dmp
memory/308-186-0x0000000006FB0000-0x0000000007554000-memory.dmp
memory/1380-159-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1380-157-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1380-166-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1380-200-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1380-161-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1956-268-0x0000000004B10000-0x0000000005667000-memory.dmp
memory/1956-276-0x0000000006FF0000-0x0000000007130000-memory.dmp
memory/1956-271-0x0000000005840000-0x0000000005980000-memory.dmp
memory/1956-269-0x0000000004B10000-0x0000000005667000-memory.dmp
memory/1956-275-0x0000000006FF0000-0x0000000007130000-memory.dmp
memory/1956-278-0x0000000005840000-0x0000000005980000-memory.dmp
memory/1956-287-0x0000000004B10000-0x0000000005667000-memory.dmp
memory/1956-277-0x0000000005840000-0x0000000005980000-memory.dmp
memory/1956-270-0x0000000005840000-0x0000000005980000-memory.dmp
memory/1960-196-0x000000000056B000-0x000000000057B000-memory.dmp
memory/1960-197-0x0000000000400000-0x000000000045D000-memory.dmp
memory/2036-258-0x0000000000400000-0x000000000046A000-memory.dmp
memory/2036-257-0x000000000077D000-0x000000000079C000-memory.dmp
memory/2036-145-0x0000000000DD0000-0x0000000000E3A000-memory.dmp
memory/2624-266-0x0000000002300000-0x0000000002432000-memory.dmp
memory/2624-267-0x0000000000400000-0x0000000000539000-memory.dmp
memory/2624-265-0x00000000009EF000-0x0000000000ADB000-memory.dmp
memory/3168-223-0x0000000002090000-0x00000000020E3000-memory.dmp
memory/3168-221-0x00000000004B8000-0x00000000004E6000-memory.dmp
memory/3272-193-0x0000000000400000-0x000000000046A000-memory.dmp
memory/3272-191-0x000000000062B000-0x0000000000649000-memory.dmp
memory/3336-181-0x000000000070B000-0x0000000000729000-memory.dmp
memory/3336-169-0x0000000000400000-0x000000000046A000-memory.dmp
memory/3336-168-0x00000000008F0000-0x000000000092C000-memory.dmp
memory/3336-167-0x000000000070B000-0x0000000000729000-memory.dmp
memory/3336-183-0x0000000000400000-0x000000000046A000-memory.dmp
memory/3624-192-0x000000000052A000-0x0000000000548000-memory.dmp
memory/3624-194-0x0000000000400000-0x000000000046A000-memory.dmp
memory/3628-224-0x0000000000400000-0x0000000000467000-memory.dmp
memory/3628-222-0x0000000000400000-0x0000000000467000-memory.dmp
memory/3628-255-0x0000000000400000-0x0000000000467000-memory.dmp
memory/3628-220-0x0000000000400000-0x0000000000467000-memory.dmp
memory/3628-218-0x0000000000400000-0x0000000000467000-memory.dmp
memory/3628-230-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/3632-206-0x00000000008F3000-0x0000000000984000-memory.dmp
memory/3932-182-0x0000000000560000-0x0000000000569000-memory.dmp
memory/3932-184-0x0000000000400000-0x000000000045D000-memory.dmp
memory/3932-201-0x0000000000400000-0x000000000045D000-memory.dmp
memory/3932-180-0x000000000060B000-0x000000000061B000-memory.dmp
memory/4232-212-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4232-207-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4232-229-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4232-205-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4344-135-0x0000000000400000-0x000000000045D000-memory.dmp
memory/4344-132-0x00000000005CB000-0x00000000005DB000-memory.dmp
memory/4344-133-0x00000000004F0000-0x00000000004F9000-memory.dmp
memory/4344-134-0x0000000000400000-0x000000000045D000-memory.dmp
memory/4428-213-0x0000000002210000-0x000000000232B000-memory.dmp
memory/4428-160-0x0000000000683000-0x0000000000714000-memory.dmp
memory/4428-162-0x0000000002210000-0x000000000232B000-memory.dmp
memory/4788-280-0x0000017EDDD30000-0x0000017EDDE70000-memory.dmp
memory/4788-281-0x0000000000E90000-0x000000000113E000-memory.dmp
memory/4788-282-0x0000017EDDD30000-0x0000017EDDE70000-memory.dmp
memory/4788-283-0x0000017EDC2D0000-0x0000017EDC58F000-memory.dmp
memory/4788-285-0x0000017EDC2D0000-0x0000017EDC58F000-memory.dmp
memory/5000-289-0x000000000048D000-0x00000000004AB000-memory.dmp
memory/5000-290-0x0000000000400000-0x000000000046A000-memory.dmp