Analysis
- max time kernel
150s - max time network
133s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
- submitted
05/11/2022, 17:02
General
- Target file.exe
- Size 285KB
- Sample221105-vj468sbaar
- SHA256 d9f24f0e1c12c1157cde993ef1fc65a3041b9d7e6b914eb669a65a12c03e89dc
Malware Config
Extracted
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djvu
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http://fresherlights.com/lancer/get.php
-
extension
.zate
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offline_id
VW11mMMPfxPTr0epvPSw1m6GBzcKFb3H2Lm2nyt1
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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
-
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 1 IoCs
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Blocklisted process makes network request 1 IoCs
- Downloads MZ/PE file
- Executes dropped EXE 13 IoCs
- Checks computer location settings 2 TTPs 4 IoCs
Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL 5 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 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 4 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 52 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 45 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:\Users\Admin\AppData\Local\Temp\D2F.exeC:\Users\Admin\AppData\Local\Temp\D2F.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⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\E68.exeC:\Users\Admin\AppData\Local\Temp\E68.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5036 -s 3402⤵
- Program crash
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C:\Users\Admin\AppData\Local\Temp\F44.exeC:\Users\Admin\AppData\Local\Temp\F44.exe1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\1197.dll1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\1197.dll2⤵
- Loads dropped DLL
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C:\Users\Admin\AppData\Local\Temp\131E.exeC:\Users\Admin\AppData\Local\Temp\131E.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\131E.exeC:\Users\Admin\AppData\Local\Temp\131E.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\9c7e06e5-3227-447a-9512-d6cc858aae0b" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
-
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C:\Users\Admin\AppData\Local\Temp\131E.exe"C:\Users\Admin\AppData\Local\Temp\131E.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\131E.exe"C:\Users\Admin\AppData\Local\Temp\131E.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\73b0ae20-77a5-4afa-baaf-58324e59360e\build2.exe"C:\Users\Admin\AppData\Local\73b0ae20-77a5-4afa-baaf-58324e59360e\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\73b0ae20-77a5-4afa-baaf-58324e59360e\build2.exe"C:\Users\Admin\AppData\Local\73b0ae20-77a5-4afa-baaf-58324e59360e\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\73b0ae20-77a5-4afa-baaf-58324e59360e\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\73b0ae20-77a5-4afa-baaf-58324e59360e\build3.exe"C:\Users\Admin\AppData\Local\73b0ae20-77a5-4afa-baaf-58324e59360e\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\15DF.exeC:\Users\Admin\AppData\Local\Temp\15DF.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2348 -s 3402⤵
- Program crash
-
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C:\Users\Admin\AppData\Local\Temp\1831.exeC:\Users\Admin\AppData\Local\Temp\1831.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2040 -s 3402⤵
- 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 456 -p 5036 -ip 50361⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 2040 -ip 20401⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 592 -p 2348 -ip 23481⤵
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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exeC:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe1⤵
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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:\Users\Admin\AppData\Local\Temp\ACD1.exeC:\Users\Admin\AppData\Local\Temp\ACD1.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Checks processor information in registry
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\syswow64\rundll32.exe" "C:\Windows\syswow64\shell32.dll",#612⤵
- Blocklisted process makes network request
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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 FindShellTrayWindow
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1500 -s 10522⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 588 -p 1500 -ip 15001⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
mozglue.dll
nss3.dll
sqlite3.dll
07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
build2.exe
build2.exe
build2.exe
build3.exe
131E.exe
1197.dll
1197.dll
1197.dll
131E.exe
131E.exe
131E.exe
131E.exe
131E.exe
15DF.exe
15DF.exe
1831.exe
1831.exe
ACD1.exe
ACD1.exe
D2F.exe
D2F.exe
E68.exe
E68.exe
F44.exe
F44.exe
Wffwew.tmp
memory/868-278-0x0000000000450000-0x0000000000E90000-memory.dmp
memory/868-279-0x0000000002910000-0x0000000003470000-memory.dmp
memory/868-280-0x0000000003640000-0x0000000003780000-memory.dmp
memory/868-281-0x0000000003640000-0x0000000003780000-memory.dmp
memory/868-282-0x0000000002910000-0x0000000003470000-memory.dmp
memory/1500-275-0x0000000003F30000-0x0000000004070000-memory.dmp
memory/1500-256-0x0000000000400000-0x0000000000957000-memory.dmp
memory/1500-270-0x0000000003F30000-0x0000000004070000-memory.dmp
memory/1500-266-0x0000000003260000-0x0000000003DC0000-memory.dmp
memory/1500-255-0x0000000000400000-0x0000000000957000-memory.dmp
memory/1500-269-0x0000000003F30000-0x0000000004070000-memory.dmp
memory/1500-252-0x0000000000400000-0x0000000000957000-memory.dmp
memory/1500-267-0x0000000003260000-0x0000000003DC0000-memory.dmp
memory/1500-276-0x0000000003F30000-0x0000000004070000-memory.dmp
memory/1500-272-0x0000000003F30000-0x0000000004070000-memory.dmp
memory/1500-273-0x0000000003F30000-0x0000000004070000-memory.dmp
memory/1500-274-0x0000000003F30000-0x0000000004070000-memory.dmp
memory/1500-271-0x0000000003F30000-0x0000000004070000-memory.dmp
memory/1500-254-0x0000000002720000-0x00000000029EC000-memory.dmp
memory/1500-253-0x0000000002491000-0x00000000025B3000-memory.dmp
memory/1500-268-0x0000000003260000-0x0000000003DC0000-memory.dmp
memory/1500-265-0x0000000000400000-0x0000000000957000-memory.dmp
memory/1504-187-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1504-200-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1504-184-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1504-182-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1504-180-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1916-170-0x0000000000BC0000-0x0000000000BCC000-memory.dmp
memory/2040-188-0x00000000008A0000-0x00000000008A9000-memory.dmp
memory/2040-192-0x0000000000A93000-0x0000000000AA9000-memory.dmp
memory/2040-189-0x0000000000400000-0x0000000000859000-memory.dmp
memory/2280-169-0x0000000002700000-0x0000000002836000-memory.dmp
memory/2280-152-0x00000000020B0000-0x0000000002234000-memory.dmp
memory/2280-216-0x0000000002910000-0x00000000029C5000-memory.dmp
memory/2280-215-0x0000000002840000-0x000000000290A000-memory.dmp
memory/2280-168-0x0000000002480000-0x00000000025B6000-memory.dmp
memory/2280-219-0x0000000002700000-0x0000000002836000-memory.dmp
memory/2348-194-0x0000000000400000-0x000000000084A000-memory.dmp
memory/2348-193-0x0000000000BC8000-0x0000000000BDE000-memory.dmp
memory/2632-263-0x0000000000F10000-0x0000000000F13000-memory.dmp
memory/2632-261-0x0000000000F00000-0x0000000000F03000-memory.dmp
memory/2632-260-0x0000000000EF0000-0x0000000000EF3000-memory.dmp
memory/2632-262-0x0000000000F10000-0x0000000000F13000-memory.dmp
memory/2632-258-0x0000000000ED0000-0x0000000000ED3000-memory.dmp
memory/2632-259-0x0000000000EE0000-0x0000000000EE3000-memory.dmp
memory/3224-164-0x0000000006480000-0x00000000064A2000-memory.dmp
memory/3224-163-0x0000000006A00000-0x0000000006FA4000-memory.dmp
memory/3224-142-0x0000000000EA0000-0x0000000000EBA000-memory.dmp
memory/3224-161-0x00000000063B0000-0x0000000006442000-memory.dmp
memory/3280-202-0x0000000007BE0000-0x000000000825A000-memory.dmp
memory/3280-190-0x0000000005CC0000-0x0000000005D26000-memory.dmp
memory/3280-186-0x0000000005550000-0x0000000005B78000-memory.dmp
memory/3280-191-0x0000000005DA0000-0x0000000005E06000-memory.dmp
memory/3280-195-0x0000000006390000-0x00000000063AE000-memory.dmp
memory/3280-203-0x0000000006880000-0x000000000689A000-memory.dmp
memory/3280-178-0x0000000002A90000-0x0000000002AC6000-memory.dmp
memory/3872-183-0x000000000247B000-0x000000000250C000-memory.dmp
memory/3872-185-0x00000000026E0000-0x00000000027FB000-memory.dmp
memory/4028-207-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4028-209-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4028-210-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4028-237-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4156-208-0x0000000000A9D000-0x0000000000B2E000-memory.dmp
memory/4220-229-0x0000000002200000-0x0000000002259000-memory.dmp
memory/4220-227-0x00000000006D8000-0x0000000000705000-memory.dmp
memory/4260-173-0x0000000000EC0000-0x0000000000F2B000-memory.dmp
memory/4260-166-0x0000000000F30000-0x0000000000FA5000-memory.dmp
memory/4260-167-0x0000000000EC0000-0x0000000000F2B000-memory.dmp
memory/4296-245-0x0000000000400000-0x000000000046E000-memory.dmp
memory/4296-230-0x0000000000400000-0x000000000046E000-memory.dmp
memory/4296-226-0x0000000000400000-0x000000000046E000-memory.dmp
memory/4296-228-0x0000000000400000-0x000000000046E000-memory.dmp
memory/4296-224-0x0000000000400000-0x000000000046E000-memory.dmp
memory/4544-247-0x0000000006FE0000-0x00000000071A2000-memory.dmp
memory/4544-241-0x00000000057D0000-0x00000000058DA000-memory.dmp
memory/4544-243-0x0000000005760000-0x000000000579C000-memory.dmp
memory/4544-242-0x0000000005700000-0x0000000005712000-memory.dmp
memory/4544-248-0x00000000076E0000-0x0000000007C0C000-memory.dmp
memory/4544-239-0x0000000000400000-0x0000000000428000-memory.dmp
memory/4544-240-0x0000000005C90000-0x00000000062A8000-memory.dmp
memory/4896-197-0x0000000000400000-0x000000000084A000-memory.dmp
memory/4896-175-0x0000000000400000-0x000000000084A000-memory.dmp
memory/4896-174-0x0000000000BF0000-0x0000000000BF9000-memory.dmp
memory/4896-172-0x0000000000C38000-0x0000000000C4E000-memory.dmp
memory/4944-132-0x00000000008D9000-0x00000000008EF000-memory.dmp
memory/4944-135-0x0000000000400000-0x000000000084A000-memory.dmp
memory/4944-134-0x0000000000400000-0x000000000084A000-memory.dmp
memory/4944-133-0x0000000002440000-0x0000000002449000-memory.dmp
memory/5036-176-0x0000000000A98000-0x0000000000AAD000-memory.dmp
memory/5036-177-0x0000000000400000-0x000000000084A000-memory.dmp