Analysis
- max time kernel
150s - max time network
131s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
- submitted
05/11/2022, 15:01
General
- Target file.exe
- Size 285KB
- Sample221105-sdvz9sgda5
- SHA256 f3d6ae3f3e6f54bf4b9e34b7a39f3123dd69b87f4e0462dd4e8304791f2ac1f0
Malware Config
Extracted
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djvu
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http://fresherlights.com/lancer/get.php
-
extension
.zate
-
offline_id
VW11mMMPfxPTr0epvPSw1m6GBzcKFb3H2Lm2nyt1
-
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
-
78.153.144.3:2510
-
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 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 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 44 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 48 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\21C0.exeC:\Users\Admin\AppData\Local\Temp\21C0.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\22FA.exeC:\Users\Admin\AppData\Local\Temp\22FA.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 396 -s 3442⤵
- Program crash
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C:\Users\Admin\AppData\Local\Temp\23B6.exeC:\Users\Admin\AppData\Local\Temp\23B6.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\259C.dll1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\259C.dll2⤵
- Loads dropped DLL
-
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C:\Users\Admin\AppData\Local\Temp\2743.exeC:\Users\Admin\AppData\Local\Temp\2743.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\2743.exeC:\Users\Admin\AppData\Local\Temp\2743.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\b65e4ce0-eb88-4241-9e05-e7c534fa2b26" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
-
-
C:\Users\Admin\AppData\Local\Temp\2743.exe"C:\Users\Admin\AppData\Local\Temp\2743.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\2743.exe"C:\Users\Admin\AppData\Local\Temp\2743.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\0ae9d008-134d-46f7-9a0b-c86fa5ab952a\build2.exe"C:\Users\Admin\AppData\Local\0ae9d008-134d-46f7-9a0b-c86fa5ab952a\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\0ae9d008-134d-46f7-9a0b-c86fa5ab952a\build2.exe"C:\Users\Admin\AppData\Local\0ae9d008-134d-46f7-9a0b-c86fa5ab952a\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\0ae9d008-134d-46f7-9a0b-c86fa5ab952a\build2.exe" & exit7⤵
-
C:\Windows\SysWOW64\timeout.exetimeout /t 68⤵
- Delays execution with timeout.exe
-
-
-
-
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C:\Users\Admin\AppData\Local\0ae9d008-134d-46f7-9a0b-c86fa5ab952a\build3.exe"C:\Users\Admin\AppData\Local\0ae9d008-134d-46f7-9a0b-c86fa5ab952a\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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-
-
-
-
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C:\Users\Admin\AppData\Local\Temp\29C4.exeC:\Users\Admin\AppData\Local\Temp\29C4.exe1⤵
- Executes dropped EXE
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1704 -s 3402⤵
- Program crash
-
-
C:\Users\Admin\AppData\Local\Temp\2D5F.exeC:\Users\Admin\AppData\Local\Temp\2D5F.exe1⤵
- Executes dropped EXE
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1764 -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
-
C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 396 -ip 3961⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1764 -ip 17641⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 1704 -ip 17041⤵
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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:\Users\Admin\AppData\Local\Temp\BA8D.exeC:\Users\Admin\AppData\Local\Temp\BA8D.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 AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3796 -s 10122⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3796 -ip 37961⤵
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
build3.exe
21C0.exe
21C0.exe
22FA.exe
22FA.exe
23B6.exe
23B6.exe
259C.dll
259C.dll
2743.exe
2743.exe
2743.exe
2743.exe
2743.exe
29C4.exe
29C4.exe
2D5F.exe
2D5F.exe
BA8D.exe
BA8D.exe
Wffwew.tmp
2743.exe
mstsca.exe
mstsca.exe
memory/112-248-0x0000000005660000-0x000000000569C000-memory.dmp
memory/112-247-0x00000000055F0000-0x0000000005602000-memory.dmp
memory/112-246-0x00000000056C0000-0x00000000057CA000-memory.dmp
memory/112-257-0x0000000007C70000-0x0000000007E32000-memory.dmp
memory/112-259-0x0000000008370000-0x000000000889C000-memory.dmp
memory/112-245-0x0000000005B70000-0x0000000006188000-memory.dmp
memory/112-244-0x0000000000400000-0x0000000000428000-memory.dmp
memory/204-170-0x0000000000950000-0x0000000000959000-memory.dmp
memory/204-169-0x0000000000AF8000-0x0000000000B0E000-memory.dmp
memory/204-193-0x0000000000400000-0x000000000084A000-memory.dmp
memory/204-171-0x0000000000400000-0x000000000084A000-memory.dmp
memory/396-183-0x0000000000400000-0x000000000084A000-memory.dmp
memory/396-181-0x0000000000B78000-0x0000000000B8E000-memory.dmp
memory/1500-264-0x0000000000ED0000-0x0000000000ED3000-memory.dmp
memory/1500-265-0x0000000000EE0000-0x0000000000EE3000-memory.dmp
memory/1500-261-0x0000000000EA0000-0x0000000000EA3000-memory.dmp
memory/1500-263-0x0000000000EC0000-0x0000000000EC3000-memory.dmp
memory/1500-267-0x0000000000EF0000-0x0000000000EF3000-memory.dmp
memory/1500-266-0x0000000000EF0000-0x0000000000EF3000-memory.dmp
memory/1500-260-0x0000000000E90000-0x0000000000E93000-memory.dmp
memory/1500-262-0x0000000000EB0000-0x0000000000EB3000-memory.dmp
memory/1704-191-0x0000000000898000-0x00000000008AE000-memory.dmp
memory/1704-192-0x0000000000400000-0x000000000084A000-memory.dmp
memory/1748-206-0x0000000002460000-0x00000000024F1000-memory.dmp
memory/1764-186-0x0000000000AF3000-0x0000000000B09000-memory.dmp
memory/1764-188-0x0000000000400000-0x0000000000859000-memory.dmp
memory/1764-187-0x00000000001F0000-0x00000000001F9000-memory.dmp
memory/1960-173-0x0000000000680000-0x00000000006EB000-memory.dmp
memory/1960-165-0x0000000000680000-0x00000000006EB000-memory.dmp
memory/1960-164-0x00000000006F0000-0x0000000000765000-memory.dmp
memory/1996-162-0x0000000006230000-0x0000000006252000-memory.dmp
memory/1996-142-0x0000000000B10000-0x0000000000B2A000-memory.dmp
memory/1996-161-0x00000000067B0000-0x0000000006D54000-memory.dmp
memory/1996-160-0x0000000006160000-0x00000000061F2000-memory.dmp
memory/2088-227-0x00000000021B0000-0x0000000002209000-memory.dmp
memory/2088-226-0x00000000007E8000-0x0000000000815000-memory.dmp
memory/2432-168-0x0000000000BB0000-0x0000000000BBC000-memory.dmp
memory/2988-190-0x0000000005C90000-0x0000000005CF6000-memory.dmp
memory/2988-200-0x0000000008250000-0x00000000088CA000-memory.dmp
memory/2988-196-0x0000000006940000-0x000000000695E000-memory.dmp
memory/2988-182-0x0000000003360000-0x0000000003396000-memory.dmp
memory/2988-201-0x0000000006E30000-0x0000000006E4A000-memory.dmp
memory/2988-184-0x0000000005D20000-0x0000000006348000-memory.dmp
memory/2988-189-0x0000000005C20000-0x0000000005C86000-memory.dmp
memory/3504-185-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3504-198-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3504-177-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3504-179-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3504-175-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3564-135-0x0000000000400000-0x000000000084A000-memory.dmp
memory/3564-132-0x0000000000949000-0x000000000095F000-memory.dmp
memory/3564-134-0x0000000000400000-0x000000000084A000-memory.dmp
memory/3564-133-0x00000000008C0000-0x00000000008C9000-memory.dmp
memory/3696-205-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3696-207-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3696-212-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3696-242-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3796-253-0x00000000026A8000-0x00000000027CA000-memory.dmp
memory/3796-275-0x0000000003E70000-0x0000000003FB0000-memory.dmp
memory/3796-280-0x0000000003E70000-0x0000000003FB0000-memory.dmp
memory/3796-279-0x0000000003E70000-0x0000000003FB0000-memory.dmp
memory/3796-278-0x0000000003E70000-0x0000000003FB0000-memory.dmp
memory/3796-277-0x0000000003E70000-0x0000000003FB0000-memory.dmp
memory/3796-273-0x0000000003E70000-0x0000000003FB0000-memory.dmp
memory/3796-276-0x0000000003E70000-0x0000000003FB0000-memory.dmp
memory/3796-252-0x0000000000400000-0x0000000000957000-memory.dmp
memory/3796-274-0x0000000003E70000-0x0000000003FB0000-memory.dmp
memory/3796-254-0x00000000027D0000-0x0000000002A9C000-memory.dmp
memory/3796-255-0x0000000000400000-0x0000000000957000-memory.dmp
memory/3796-256-0x0000000000400000-0x0000000000957000-memory.dmp
memory/3796-272-0x0000000003250000-0x0000000003DB0000-memory.dmp
memory/3796-271-0x0000000003250000-0x0000000003DB0000-memory.dmp
memory/3796-270-0x0000000003250000-0x0000000003DB0000-memory.dmp
memory/3796-269-0x0000000000400000-0x0000000000957000-memory.dmp
memory/4080-220-0x0000000002FD0000-0x0000000003106000-memory.dmp
memory/4080-166-0x0000000002D50000-0x0000000002E86000-memory.dmp
memory/4080-213-0x0000000003110000-0x00000000031DA000-memory.dmp
memory/4080-217-0x00000000031E0000-0x0000000003295000-memory.dmp
memory/4080-167-0x0000000002FD0000-0x0000000003106000-memory.dmp
memory/4192-178-0x00000000009DD000-0x0000000000A6E000-memory.dmp
memory/4192-180-0x0000000002690000-0x00000000027AB000-memory.dmp
memory/4672-288-0x00000000042F0000-0x0000000004430000-memory.dmp
memory/4672-287-0x00000000042F0000-0x0000000004430000-memory.dmp
memory/4672-286-0x00000000042F0000-0x0000000004430000-memory.dmp
memory/4672-285-0x00000000042F0000-0x0000000004430000-memory.dmp
memory/5040-240-0x0000000000400000-0x000000000046E000-memory.dmp
memory/5040-224-0x0000000000400000-0x000000000046E000-memory.dmp
memory/5040-222-0x0000000000400000-0x000000000046E000-memory.dmp
memory/5040-225-0x0000000000400000-0x000000000046E000-memory.dmp
memory/5040-228-0x0000000000400000-0x000000000046E000-memory.dmp