Analysis
- max time kernel
150s - max time network
136s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
04/11/2022, 19:31
General
- Target file.exe
- Size 303KB
- Sample221104-x8drpacbhm
- SHA256 a9bdd9560ff41f39e16181caaabbed58ffefb18d8372e4a50b57998149b68640
Malware Config
Extracted
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djvu
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http://fresherlights.com/lancer/get.php
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extension
.bozq
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offline_id
oHp5e4SJxdFtxfvKYmeX06F4C5cn0EcsF5Ak9Wt1
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payload_url
http://uaery.top/dl/build2.exe
http://fresherlights.com/files/1/build3.exe
-
ransomnote
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Extracted
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redline
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mario23_10
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167.235.252.160:10642
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auth_value
eca57cfb5172f71dc45986763bb98942
Extracted
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redline
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Mast1000
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78.153.144.3:2510
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auth_value
8e868b09fa3921a313a9a4fa08602f0a
Signatures
- Detected Djvu ransomware 10 IoCs
- Detects Smokeloader packer 3 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.
- Downloads MZ/PE file
- Executes dropped EXE 14 IoCs
- Checks computer location settings 2 TTPs 4 IoCs
Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL 4 IoCs
- Modifies file permissions 1 TTPs 1 IoCs
- 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 profiles 1 TTPs 3 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 4 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 6 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 47 IoCs
Processor information is often read in order to detect sandboxing environments.
- Creates scheduled task(s) 1 TTPs 2 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 19 IoCs
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 6 IoCs
- Suspicious use of AdjustPrivilegeToken 59 IoCs
- Suspicious use of FindShellTrayWindow 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:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\DF2A.dll1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\DF2A.dll2⤵
- Loads dropped DLL
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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\c49e5822-2895-44de-a3be-8e5c95ae06f4" /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
-
C:\Users\Admin\AppData\Local\dba06e21-2aa2-4d3a-aff1-5c87713861e2\build2.exe"C:\Users\Admin\AppData\Local\dba06e21-2aa2-4d3a-aff1-5c87713861e2\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
-
C:\Users\Admin\AppData\Local\dba06e21-2aa2-4d3a-aff1-5c87713861e2\build2.exe"C:\Users\Admin\AppData\Local\dba06e21-2aa2-4d3a-aff1-5c87713861e2\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\dba06e21-2aa2-4d3a-aff1-5c87713861e2\build2.exe" & exit7⤵
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C:\Windows\SysWOW64\timeout.exetimeout /t 68⤵
- Delays execution with timeout.exe
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-
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C:\Users\Admin\AppData\Local\dba06e21-2aa2-4d3a-aff1-5c87713861e2\build3.exe"C:\Users\Admin\AppData\Local\dba06e21-2aa2-4d3a-aff1-5c87713861e2\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\E40E.exeC:\Users\Admin\AppData\Local\Temp\E40E.exe1⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQA1AA==2⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe2⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe2⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\E71C.exeC:\Users\Admin\AppData\Local\Temp\E71C.exe1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
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C:\Users\Admin\AppData\Local\Temp\E96F.exeC:\Users\Admin\AppData\Local\Temp\E96F.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 316 -s 3402⤵
- Program crash
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C:\Users\Admin\AppData\Local\Temp\ECFA.exeC:\Users\Admin\AppData\Local\Temp\ECFA.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3100 -s 3402⤵
- Program crash
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C:\Users\Admin\AppData\Local\Temp\F102.exeC:\Users\Admin\AppData\Local\Temp\F102.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 1212 -s 774682⤵
- Program crash
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
- Accesses Microsoft Outlook profiles
- outlook_office_path
- outlook_win_path
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C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 316 -ip 3161⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3100 -ip 31001⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1212 -ip 12121⤵
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C:\Users\Admin\AppData\Local\Temp\7660.exeC:\Users\Admin\AppData\Local\Temp\7660.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Checks processor information in registry
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4576 -s 8682⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4576 -s 10162⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4576 -s 9922⤵
- Program crash
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\syswow64\rundll32.exe" "C:\Windows\syswow64\shell32.dll",#612⤵
- Checks processor information in registry
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4576 -s 10122⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4576 -ip 45761⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4576 -ip 45761⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4576 -ip 45761⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4576 -ip 45761⤵
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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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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
mozglue.dll
nss3.dll
sqlite3.dll
07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
7660.exe
7660.exe
DF2A.dll
DF2A.dll
E19C.exe
E19C.exe
E19C.exe
E19C.exe
E19C.exe
E40E.exe
E40E.exe
E71C.exe
E71C.exe
E96F.exe
E96F.exe
ECFA.exe
ECFA.exe
F102.exe
F102.exe
Microsoft .NET Framework 4.7.2 Setup_20220812_191749306.html
Rpiidpytrto.tmp
wct5D7C.tmp
wctC4C7.tmp
E19C.exe
build2.exe
build2.exe
build2.exe
build3.exe
build3.exe
mstsca.exe
mstsca.exe
memory/316-194-0x0000000000400000-0x0000000002C39000-memory.dmp
memory/316-190-0x0000000002E09000-0x0000000002E1F000-memory.dmp
memory/616-184-0x00000000046F0000-0x00000000046F9000-memory.dmp
memory/616-205-0x0000000000400000-0x0000000002C39000-memory.dmp
memory/616-185-0x0000000000400000-0x0000000002C39000-memory.dmp
memory/616-183-0x0000000002FE9000-0x0000000002FFF000-memory.dmp
memory/1192-182-0x00000000009B0000-0x00000000009BC000-memory.dmp
memory/1768-164-0x00000000047F0000-0x0000000004882000-memory.dmp
memory/1768-165-0x00000000049C0000-0x0000000004ADB000-memory.dmp
memory/2384-176-0x0000000006330000-0x0000000006352000-memory.dmp
memory/2384-174-0x00000000068B0000-0x0000000006E54000-memory.dmp
memory/2384-147-0x0000000000D50000-0x0000000000D6A000-memory.dmp
memory/2384-172-0x0000000006260000-0x00000000062F2000-memory.dmp
memory/2476-136-0x0000000000400000-0x0000000002C39000-memory.dmp
memory/2476-132-0x0000000002E69000-0x0000000002E7F000-memory.dmp
memory/2476-135-0x0000000002E69000-0x0000000002E7F000-memory.dmp
memory/2476-134-0x0000000000400000-0x0000000002C39000-memory.dmp
memory/2476-133-0x0000000002CB0000-0x0000000002CB9000-memory.dmp
memory/3100-230-0x0000000000400000-0x0000000002C39000-memory.dmp
memory/3100-188-0x0000000002CE9000-0x0000000002CFF000-memory.dmp
memory/3100-197-0x0000000000400000-0x0000000002C39000-memory.dmp
memory/3100-189-0x0000000002C70000-0x0000000002C79000-memory.dmp
memory/3752-251-0x0000000000400000-0x0000000000428000-memory.dmp
memory/3968-278-0x0000000000E20000-0x000000000186A000-memory.dmp
memory/3968-285-0x0000000001870000-0x00000000019B0000-memory.dmp
memory/3968-284-0x0000000001870000-0x00000000019B0000-memory.dmp
memory/3968-283-0x00000000031A0000-0x0000000003D09000-memory.dmp
memory/3968-277-0x0000000001870000-0x00000000019B0000-memory.dmp
memory/3968-276-0x0000000001870000-0x00000000019B0000-memory.dmp
memory/3968-275-0x00000000031A0000-0x0000000003D09000-memory.dmp
memory/3968-287-0x00000000031A0000-0x0000000003D09000-memory.dmp
memory/3980-187-0x0000000001050000-0x00000000010BB000-memory.dmp
memory/3980-181-0x00000000010C0000-0x0000000001135000-memory.dmp
memory/3980-178-0x0000000001050000-0x00000000010BB000-memory.dmp
memory/4240-215-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4240-177-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4240-169-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4240-171-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4240-167-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4576-270-0x0000000006AE0000-0x0000000006C20000-memory.dmp
memory/4576-264-0x0000000005EB0000-0x0000000006A19000-memory.dmp
memory/4576-263-0x0000000005EB0000-0x0000000006A19000-memory.dmp
memory/4576-262-0x0000000000400000-0x00000000030CE000-memory.dmp
memory/4576-261-0x0000000000400000-0x00000000030CE000-memory.dmp
memory/4576-288-0x0000000005EB0000-0x0000000006A19000-memory.dmp
memory/4576-260-0x00000000051F0000-0x0000000005845000-memory.dmp
memory/4576-259-0x0000000004C3F000-0x00000000050E9000-memory.dmp
memory/4576-273-0x0000000006AE0000-0x0000000006C20000-memory.dmp
memory/4576-286-0x0000000000400000-0x00000000030CE000-memory.dmp
memory/4576-266-0x0000000006AE0000-0x0000000006C20000-memory.dmp
memory/4576-272-0x0000000006AE0000-0x0000000006C20000-memory.dmp
memory/4576-271-0x0000000006AE0000-0x0000000006C20000-memory.dmp
memory/4576-267-0x0000000006AE0000-0x0000000006C20000-memory.dmp
memory/4576-265-0x0000000005EB0000-0x0000000006A19000-memory.dmp
memory/4576-268-0x0000000006AE0000-0x0000000006C20000-memory.dmp
memory/4576-269-0x0000000006AE0000-0x0000000006C20000-memory.dmp
memory/4628-155-0x00000000033D0000-0x0000000003485000-memory.dmp
memory/4628-151-0x0000000003300000-0x00000000033C9000-memory.dmp
memory/4628-158-0x00000000033D0000-0x0000000003485000-memory.dmp
memory/4628-148-0x0000000002FA0000-0x00000000030C0000-memory.dmp
memory/4628-149-0x00000000031E0000-0x0000000003300000-memory.dmp
memory/4628-161-0x00000000031E0000-0x0000000003300000-memory.dmp
memory/20212-212-0x0000000006740000-0x000000000675A000-memory.dmp
memory/20212-211-0x0000000007830000-0x0000000007EAA000-memory.dmp
memory/20212-198-0x0000000006240000-0x000000000625E000-memory.dmp
memory/20212-193-0x00000000055F0000-0x0000000005C18000-memory.dmp
memory/20212-195-0x0000000005510000-0x0000000005576000-memory.dmp
memory/20212-196-0x0000000005C20000-0x0000000005C86000-memory.dmp
memory/20212-191-0x0000000002900000-0x0000000002936000-memory.dmp
memory/81136-241-0x0000000008640000-0x0000000008B6C000-memory.dmp
memory/81136-206-0x00000000053B0000-0x00000000059C8000-memory.dmp
memory/81136-200-0x0000000000800000-0x0000000000860000-memory.dmp
memory/81136-207-0x0000000004EF0000-0x0000000004FFA000-memory.dmp
memory/81136-209-0x0000000004E80000-0x0000000004EBC000-memory.dmp
memory/81136-239-0x0000000006290000-0x0000000006452000-memory.dmp
memory/81136-208-0x0000000004E20000-0x0000000004E32000-memory.dmp
memory/81420-220-0x000000000482A000-0x00000000048BC000-memory.dmp
memory/81556-248-0x0000000000400000-0x0000000000537000-memory.dmp
memory/81556-219-0x0000000000400000-0x0000000000537000-memory.dmp
memory/81556-221-0x0000000000400000-0x0000000000537000-memory.dmp
memory/81556-226-0x0000000000400000-0x0000000000537000-memory.dmp
memory/81776-234-0x0000000000848000-0x0000000000875000-memory.dmp
memory/81776-236-0x00000000021D0000-0x0000000002229000-memory.dmp
memory/81840-232-0x0000000000400000-0x000000000046E000-memory.dmp
memory/81840-238-0x0000000000400000-0x000000000046E000-memory.dmp
memory/81840-252-0x0000000000400000-0x000000000046E000-memory.dmp
memory/81840-237-0x0000000000400000-0x000000000046E000-memory.dmp
memory/81840-235-0x0000000000400000-0x000000000046E000-memory.dmp
memory/81840-254-0x0000000000400000-0x000000000046E000-memory.dmp