Analysis
- max time kernel
150s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
05/11/2022, 18:02
General
- Target file.exe
- Size 285KB
- Sample221105-wme7ysbcbj
- SHA256 7fad3d63a0ceeda158a56bf24c7d139df942f26bcd904c39c85fead2934df2a1
Malware Config
Extracted
-
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 2 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 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 4 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 42 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 44 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\BEFF.exeC:\Users\Admin\AppData\Local\Temp\BEFF.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\C307.exeC:\Users\Admin\AppData\Local\Temp\C307.exe1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
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C:\Users\Admin\AppData\Local\Temp\C4BE.exeC:\Users\Admin\AppData\Local\Temp\C4BE.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3948 -s 3402⤵
- Program crash
-
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\C83A.dll1⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\C83A.dll2⤵
- Loads dropped DLL
-
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C:\Users\Admin\AppData\Local\Temp\CA0F.exeC:\Users\Admin\AppData\Local\Temp\CA0F.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\CA0F.exeC:\Users\Admin\AppData\Local\Temp\CA0F.exe2⤵
- Executes dropped EXE
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\d199035b-a005-46e0-bbd2-a1cba74aade7" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
-
-
C:\Users\Admin\AppData\Local\Temp\CA0F.exe"C:\Users\Admin\AppData\Local\Temp\CA0F.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\CA0F.exe"C:\Users\Admin\AppData\Local\Temp\CA0F.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\77113892-c721-461f-aba1-f761b3f7f488\build2.exe"C:\Users\Admin\AppData\Local\77113892-c721-461f-aba1-f761b3f7f488\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\77113892-c721-461f-aba1-f761b3f7f488\build2.exe"C:\Users\Admin\AppData\Local\77113892-c721-461f-aba1-f761b3f7f488\build2.exe"6⤵
- Executes dropped EXE
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\77113892-c721-461f-aba1-f761b3f7f488\build2.exe" & exit7⤵
-
C:\Windows\SysWOW64\timeout.exetimeout /t 68⤵
- Delays execution with timeout.exe
-
-
-
-
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C:\Users\Admin\AppData\Local\77113892-c721-461f-aba1-f761b3f7f488\build3.exe"C:\Users\Admin\AppData\Local\77113892-c721-461f-aba1-f761b3f7f488\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\CE08.exeC:\Users\Admin\AppData\Local\Temp\CE08.exe1⤵
- Executes dropped EXE
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3824 -s 3402⤵
- Program crash
-
-
C:\Users\Admin\AppData\Local\Temp\D06A.exeC:\Users\Admin\AppData\Local\Temp\D06A.exe1⤵
- Executes dropped EXE
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1160 -s 3402⤵
- Program crash
-
-
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 3948 -ip 39481⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 1160 -ip 11601⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 3824 -ip 38241⤵
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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\65B6.exeC:\Users\Admin\AppData\Local\Temp\65B6.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 4264 -s 10562⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 4264 -ip 42641⤵
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
65B6.exe
65B6.exe
BEFF.exe
BEFF.exe
C307.exe
C307.exe
C4BE.exe
C4BE.exe
C83A.dll
C83A.dll
C83A.dll
CA0F.exe
CA0F.exe
CA0F.exe
CA0F.exe
CA0F.exe
CE08.exe
CE08.exe
D06A.exe
D06A.exe
Wffwew.tmp
CA0F.exe
mstsca.exe
mstsca.exe
memory/224-240-0x0000000005820000-0x0000000005E38000-memory.dmp
memory/224-265-0x00000000083E0000-0x000000000890C000-memory.dmp
memory/224-264-0x0000000007CE0000-0x0000000007EA2000-memory.dmp
memory/224-241-0x0000000005390000-0x000000000549A000-memory.dmp
memory/224-243-0x0000000005350000-0x000000000538C000-memory.dmp
memory/224-239-0x0000000000400000-0x0000000000428000-memory.dmp
memory/224-242-0x00000000052C0000-0x00000000052D2000-memory.dmp
memory/228-187-0x0000000005900000-0x0000000005966000-memory.dmp
memory/228-178-0x0000000005180000-0x00000000057A8000-memory.dmp
memory/228-196-0x0000000005F10000-0x0000000005F2E000-memory.dmp
memory/228-176-0x0000000000E00000-0x0000000000E36000-memory.dmp
memory/228-186-0x0000000005820000-0x0000000005886000-memory.dmp
memory/228-199-0x0000000006430000-0x000000000644A000-memory.dmp
memory/228-198-0x0000000007510000-0x0000000007B8A000-memory.dmp
memory/740-230-0x0000000000400000-0x000000000046E000-memory.dmp
memory/740-249-0x0000000000400000-0x000000000046E000-memory.dmp
memory/740-231-0x0000000000400000-0x000000000046E000-memory.dmp
memory/740-228-0x0000000000400000-0x000000000046E000-memory.dmp
memory/740-225-0x0000000000400000-0x000000000046E000-memory.dmp
memory/740-252-0x0000000000400000-0x000000000046E000-memory.dmp
memory/1080-203-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1080-180-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1080-182-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1080-185-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1080-189-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1160-193-0x0000000000BE3000-0x0000000000BF9000-memory.dmp
memory/1160-195-0x0000000000400000-0x0000000000859000-memory.dmp
memory/1344-298-0x0000000004190000-0x00000000042D0000-memory.dmp
memory/1344-303-0x0000000004190000-0x00000000042D0000-memory.dmp
memory/1344-302-0x0000000004190000-0x00000000042D0000-memory.dmp
memory/1344-300-0x0000000004190000-0x00000000042D0000-memory.dmp
memory/1344-297-0x0000000003630000-0x0000000004190000-memory.dmp
memory/1844-229-0x00000000008B8000-0x00000000008E5000-memory.dmp
memory/1844-226-0x0000000002240000-0x0000000002299000-memory.dmp
memory/1844-224-0x00000000008B8000-0x00000000008E5000-memory.dmp
memory/2404-172-0x00000000008F0000-0x00000000008FC000-memory.dmp
memory/2464-147-0x0000000006800000-0x0000000006DA4000-memory.dmp
memory/2464-139-0x0000000000B60000-0x0000000000B7A000-memory.dmp
memory/2464-146-0x00000000061B0000-0x0000000006242000-memory.dmp
memory/2464-149-0x0000000006280000-0x00000000062A2000-memory.dmp
memory/3368-201-0x0000000002860000-0x000000000292A000-memory.dmp
memory/3368-205-0x0000000002930000-0x00000000029E5000-memory.dmp
memory/3368-157-0x0000000000DB0000-0x0000000000F34000-memory.dmp
memory/3368-165-0x00000000024A0000-0x00000000025D6000-memory.dmp
memory/3368-166-0x0000000002720000-0x0000000002856000-memory.dmp
memory/3368-208-0x0000000002720000-0x0000000002856000-memory.dmp
memory/3520-236-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3520-212-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3520-214-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3520-215-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3656-170-0x0000000000820000-0x000000000088B000-memory.dmp
memory/3656-188-0x0000000000820000-0x000000000088B000-memory.dmp
memory/3656-174-0x0000000000890000-0x0000000000905000-memory.dmp
memory/3824-192-0x0000000000400000-0x000000000084A000-memory.dmp
memory/3824-191-0x00000000008C0000-0x00000000008C9000-memory.dmp
memory/3824-190-0x00000000008F9000-0x000000000090F000-memory.dmp
memory/3948-177-0x0000000000400000-0x000000000084A000-memory.dmp
memory/3948-175-0x0000000000929000-0x000000000093F000-memory.dmp
memory/4016-213-0x0000000002420000-0x00000000024B1000-memory.dmp
memory/4264-261-0x0000000000400000-0x0000000000957000-memory.dmp
memory/4264-285-0x00000000032E0000-0x0000000003E40000-memory.dmp
memory/4264-295-0x0000000003E40000-0x0000000003F80000-memory.dmp
memory/4264-294-0x0000000003E40000-0x0000000003F80000-memory.dmp
memory/4264-293-0x0000000003E40000-0x0000000003F80000-memory.dmp
memory/4264-257-0x0000000000400000-0x0000000000957000-memory.dmp
memory/4264-258-0x00000000024C7000-0x00000000025E9000-memory.dmp
memory/4264-259-0x00000000026F0000-0x00000000029BC000-memory.dmp
memory/4264-260-0x0000000000400000-0x0000000000957000-memory.dmp
memory/4264-292-0x0000000003E40000-0x0000000003F80000-memory.dmp
memory/4264-287-0x00000000032E0000-0x0000000003E40000-memory.dmp
memory/4264-291-0x0000000003E40000-0x0000000003F80000-memory.dmp
memory/4264-290-0x0000000003E40000-0x0000000003F80000-memory.dmp
memory/4264-289-0x0000000003E40000-0x0000000003F80000-memory.dmp
memory/4264-288-0x0000000003E40000-0x0000000003F80000-memory.dmp
memory/4356-270-0x0000000000F10000-0x0000000000F13000-memory.dmp
memory/4356-269-0x0000000000F00000-0x0000000000F03000-memory.dmp
memory/4356-271-0x0000000000F20000-0x0000000000F23000-memory.dmp
memory/4356-272-0x0000000000F30000-0x0000000000F33000-memory.dmp
memory/4356-268-0x0000000000EF0000-0x0000000000EF3000-memory.dmp
memory/4356-267-0x0000000000EE0000-0x0000000000EE3000-memory.dmp
memory/4356-266-0x0000000000ED0000-0x0000000000ED3000-memory.dmp
memory/4356-263-0x0000000000EC0000-0x0000000000EC3000-memory.dmp
memory/4644-183-0x000000000246E000-0x00000000024FF000-memory.dmp
memory/4644-184-0x0000000002600000-0x000000000271B000-memory.dmp
memory/4668-167-0x00000000008C0000-0x00000000008C9000-memory.dmp
memory/4668-194-0x0000000000400000-0x000000000084A000-memory.dmp
memory/4668-168-0x0000000000400000-0x000000000084A000-memory.dmp
memory/4668-173-0x0000000000A99000-0x0000000000AAF000-memory.dmp
memory/4984-132-0x0000000000BD9000-0x0000000000BEF000-memory.dmp
memory/4984-135-0x0000000000400000-0x000000000084A000-memory.dmp
memory/4984-134-0x0000000000400000-0x000000000084A000-memory.dmp
memory/4984-133-0x0000000000BA0000-0x0000000000BA9000-memory.dmp