Analysis
- max time kernel
151s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
- submitted
24/11/2022, 17:05
General
- Target cd568b3ef8516309d21bb242bf63db291313bd492da31155e42f5ede5204edec.exe
- Size 185KB
- Sample221124-vlyggagf65
- SHA256 cd568b3ef8516309d21bb242bf63db291313bd492da31155e42f5ede5204edec
Malware Config
Extracted
-
djvu
-
http://fresherlights.com/lancer/get.php
-
extension
.tcbu
-
offline_id
JBPpFMvWlKMsKlJRmPJl5e09RSnYrRJya1oX8xt1
-
payload_url
http://uaery.top/dl/build2.exe
http://fresherlights.com/files/1/build3.exe
-
ransomnote
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Extracted
-
vidar
-
55.9
-
1859
-
https://t.me/headshotsonly
-
https://steamcommunity.com/profiles/76561199436777531
-
profile_id
1859
Extracted
-
vidar
-
55.9
-
517
-
https://t.me/headshotsonly
-
https://steamcommunity.com/profiles/76561199436777531
-
profile_id
517
Signatures
- Detected Djvu ransomware 10 IoCs
- Detects Smokeloader packer 3 IoCs
- Djvu Ransomware
Ransomware which is a variant of the STOP family.
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Vidar
Vidar is an infostealer based on Arkei stealer.
- Downloads MZ/PE file
- Executes dropped EXE 17 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.
- Uses the VBS compiler for execution 1 TTPs
- 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 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 6 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 4 IoCs
Processor information is often read in order to detect sandboxing environments.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Delays execution with timeout.exe 2 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 24 IoCs
- Suspicious use of AdjustPrivilegeToken 38 IoCs
- Suspicious use of WriteProcessMemory 64 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\cd568b3ef8516309d21bb242bf63db291313bd492da31155e42f5ede5204edec.exe"C:\Users\Admin\AppData\Local\Temp\cd568b3ef8516309d21bb242bf63db291313bd492da31155e42f5ede5204edec.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Users\Admin\AppData\Local\Temp\56CB.exeC:\Users\Admin\AppData\Local\Temp\56CB.exe1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
-
C:\Users\Admin\AppData\Local\Temp\5797.exeC:\Users\Admin\AppData\Local\Temp\5797.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4544 -s 3402⤵
- Program crash
-
-
C:\Users\Admin\AppData\Local\Temp\58EF.exeC:\Users\Admin\AppData\Local\Temp\58EF.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\58EF.exeC:\Users\Admin\AppData\Local\Temp\58EF.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\4bbcaab9-af4c-407e-9764-58912d5c26b5" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
-
-
C:\Users\Admin\AppData\Local\Temp\58EF.exe"C:\Users\Admin\AppData\Local\Temp\58EF.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\58EF.exe"C:\Users\Admin\AppData\Local\Temp\58EF.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\1e59c324-364c-4b79-b62f-f4d205f54331\build2.exe"C:\Users\Admin\AppData\Local\1e59c324-364c-4b79-b62f-f4d205f54331\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
-
C:\Users\Admin\AppData\Local\1e59c324-364c-4b79-b62f-f4d205f54331\build2.exe"C:\Users\Admin\AppData\Local\1e59c324-364c-4b79-b62f-f4d205f54331\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\1e59c324-364c-4b79-b62f-f4d205f54331\build2.exe" & exit7⤵
-
C:\Windows\SysWOW64\timeout.exetimeout /t 68⤵
- Delays execution with timeout.exe
-
-
-
-
-
C:\Users\Admin\AppData\Local\1e59c324-364c-4b79-b62f-f4d205f54331\build3.exe"C:\Users\Admin\AppData\Local\1e59c324-364c-4b79-b62f-f4d205f54331\build3.exe"5⤵
- Executes dropped EXE
-
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)
-
-
-
-
-
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\5B23.dll1⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\5B23.dll2⤵
- Loads dropped DLL
-
-
C:\Users\Admin\AppData\Local\Temp\5BFF.exeC:\Users\Admin\AppData\Local\Temp\5BFF.exe1⤵
- Executes dropped EXE
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\5BFF.exe" & exit2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\timeout.exetimeout /t 63⤵
- Delays execution with timeout.exe
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5104 -s 21122⤵
- Program crash
-
-
C:\Users\Admin\AppData\Local\Temp\5E90.exeC:\Users\Admin\AppData\Local\Temp\5E90.exe1⤵
- Executes dropped EXE
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 3402⤵
- Program crash
-
-
C:\Users\Admin\AppData\Local\Temp\6066.exeC:\Users\Admin\AppData\Local\Temp\6066.exe1⤵
- Executes dropped EXE
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4444 -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 460 -p 4544 -ip 45441⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 5092 -ip 50921⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4444 -ip 44441⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 5104 -ip 51041⤵
-
C:\Users\Admin\AppData\Local\Temp\CC7A.exeC:\Users\Admin\AppData\Local\Temp\CC7A.exe1⤵
- Executes dropped EXE
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4796 -s 4362⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4796 -ip 47961⤵
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C:\Users\Admin\AppData\Local\Temp\D4B8.exeC:\Users\Admin\AppData\Local\Temp\D4B8.exe1⤵
- Executes dropped EXE
-
C:\Users\Admin\AppData\Local\Temp\F14A.exeC:\Users\Admin\AppData\Local\Temp\F14A.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"2⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 2562⤵
- Program crash
-
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C:\Users\Admin\AppData\Local\Temp\F3BC.exeC:\Users\Admin\AppData\Local\Temp\F3BC.exe1⤵
- Executes dropped EXE
-
C:\Users\Admin\AppData\Local\Temp\F89F.exeC:\Users\Admin\AppData\Local\Temp\F89F.exe1⤵
- Executes dropped EXE
-
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
-
C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4492 -ip 44921⤵
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
-
C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵
-
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
-
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
-
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
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C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
freebl3.dll
mozglue.dll
mozglue.dll
mozglue.dll
msvcp140.dll
nss3.dll
nss3.dll
nss3.dll
softokn3.dll
vcruntime140.dll
07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771
70C71DBB8B7D2BBCA12DF82826D851E0_278EAB15C57802B8465F5CA2986E9B30
B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D
07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771
70C71DBB8B7D2BBCA12DF82826D851E0_278EAB15C57802B8465F5CA2986E9B30
B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D
build2.exe
build2.exe
build2.exe
build3.exe
build3.exe
58EF.exe
56CB.exe
56CB.exe
5797.exe
5797.exe
58EF.exe
58EF.exe
58EF.exe
58EF.exe
58EF.exe
5B23.dll
5B23.dll
5BFF.exe
5BFF.exe
5E90.exe
5E90.exe
6066.exe
6066.exe
CC7A.exe
CC7A.exe
D4B8.exe
D4B8.exe
F14A.exe
F14A.exe
F3BC.exe
F3BC.exe
F89F.exe
F89F.exe
memory/8-241-0x00000000022D0000-0x000000000231B000-memory.dmp
memory/8-240-0x000000000084D000-0x000000000087A000-memory.dmp
memory/364-159-0x0000000001320000-0x0000000001395000-memory.dmp
memory/364-160-0x00000000012B0000-0x000000000131B000-memory.dmp
memory/364-163-0x00000000012B0000-0x000000000131B000-memory.dmp
memory/484-319-0x0000000001270000-0x0000000001275000-memory.dmp
memory/484-320-0x0000000001260000-0x0000000001269000-memory.dmp
memory/836-314-0x0000000000F10000-0x0000000000F19000-memory.dmp
memory/836-316-0x0000000000F00000-0x0000000000F0F000-memory.dmp
memory/920-135-0x0000000000400000-0x000000000064C000-memory.dmp
memory/920-134-0x0000000000400000-0x000000000064C000-memory.dmp
memory/920-132-0x00000000009BE000-0x00000000009CE000-memory.dmp
memory/920-133-0x00000000007D0000-0x00000000007D9000-memory.dmp
memory/1100-332-0x0000000000820000-0x000000000082B000-memory.dmp
memory/1100-331-0x0000000000830000-0x0000000000836000-memory.dmp
memory/1448-238-0x0000000000400000-0x000000000045F000-memory.dmp
memory/1448-276-0x0000000000400000-0x000000000045F000-memory.dmp
memory/1448-242-0x0000000000400000-0x000000000045F000-memory.dmp
memory/1448-239-0x0000000000400000-0x000000000045F000-memory.dmp
memory/1448-236-0x0000000000400000-0x000000000045F000-memory.dmp
memory/1688-192-0x0000000002251000-0x00000000022E2000-memory.dmp
memory/1712-195-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1712-233-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1712-193-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1712-191-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2816-328-0x00000000012C0000-0x00000000012C5000-memory.dmp
memory/2816-329-0x00000000012B0000-0x00000000012B9000-memory.dmp
memory/3420-168-0x00000000008E9000-0x000000000097A000-memory.dmp
memory/3420-170-0x0000000002430000-0x000000000254B000-memory.dmp
memory/3456-162-0x0000000001280000-0x000000000128C000-memory.dmp
memory/3464-305-0x0000000000400000-0x000000000040B000-memory.dmp
memory/3464-304-0x0000000000410000-0x0000000000417000-memory.dmp
memory/3464-339-0x0000000000410000-0x0000000000417000-memory.dmp
memory/3656-167-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3656-172-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3656-176-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3656-169-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3656-165-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3776-318-0x0000000004AE0000-0x0000000004AEA000-memory.dmp
memory/3776-302-0x00000000000E0000-0x000000000020C000-memory.dmp
memory/3776-315-0x0000000004BF0000-0x0000000004C8C000-memory.dmp
memory/3776-313-0x0000000004B50000-0x0000000004BE2000-memory.dmp
memory/3776-310-0x0000000005100000-0x00000000056A4000-memory.dmp
memory/4200-338-0x0000000000630000-0x000000000063B000-memory.dmp
memory/4200-337-0x0000000000640000-0x0000000000648000-memory.dmp
memory/4404-326-0x00000000007B0000-0x00000000007D7000-memory.dmp
memory/4404-325-0x0000000000A00000-0x0000000000A22000-memory.dmp
memory/4444-234-0x0000000000400000-0x000000000064C000-memory.dmp
memory/4444-196-0x00000000006ED000-0x00000000006FE000-memory.dmp
memory/4444-197-0x0000000000400000-0x000000000064C000-memory.dmp
memory/4544-184-0x0000000000400000-0x000000000064C000-memory.dmp
memory/4544-183-0x000000000079D000-0x00000000007AE000-memory.dmp
memory/4592-335-0x0000000000F70000-0x0000000000F7D000-memory.dmp
memory/4592-334-0x0000000000F80000-0x0000000000F87000-memory.dmp
memory/4672-179-0x0000000000400000-0x000000000064C000-memory.dmp
memory/4672-213-0x0000000000400000-0x000000000064C000-memory.dmp
memory/4672-178-0x00000000001C0000-0x00000000001C9000-memory.dmp
memory/4672-177-0x00000000009ED000-0x00000000009FE000-memory.dmp
memory/4856-312-0x0000000000A00000-0x0000000000C6E000-memory.dmp
memory/4856-291-0x0000000000A00000-0x0000000000C6E000-memory.dmp
memory/4872-322-0x0000000000190000-0x0000000000196000-memory.dmp
memory/4872-323-0x0000000000180000-0x000000000018C000-memory.dmp
memory/5092-185-0x00000000001C0000-0x00000000001C9000-memory.dmp
memory/5092-186-0x0000000000400000-0x000000000064C000-memory.dmp
memory/5092-187-0x000000000094D000-0x000000000095E000-memory.dmp
memory/5104-181-0x00000000006A0000-0x00000000006EA000-memory.dmp
memory/5104-182-0x0000000000400000-0x0000000000668000-memory.dmp
memory/5104-202-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/5104-228-0x0000000000400000-0x0000000000668000-memory.dmp
memory/5104-180-0x000000000088D000-0x00000000008B9000-memory.dmp