Analysis
- max time kernel
152s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
01/10/2022, 20:01
General
- Target file.exe
- Size 147KB
- Sample221001-yrjgaadde4
- SHA256 edcca9f710e01359fd984cf2be48db214f557ebc0dc937a71033c5da6e83b167
Malware Config
Extracted
-
djvu
-
http://winnlinne.com/lancer/get.php
-
extension
.ofww
-
offline_id
xkNzhkB1wvgoDI7Uo0HPNLY3qCuwoFpP7nlhlut1
-
payload_url
http://rgyui.top/dl/build2.exe
http://winnlinne.com/files/1/build3.exe
-
ransomnote
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Extracted
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vidar
-
54.7
-
517
-
https://t.me/trampapanam
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https://nerdculture.de/@yoxhyp
-
profile_id
517
Extracted
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redline
-
fud
-
45.15.156.7:48638
-
auth_value
da2faefdcf53c9d85fcbb82d0cbf4876
Signatures
- Detected Djvu ransomware 11 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.
- Vidar
Vidar is an infostealer based on Arkei stealer.
- Downloads MZ/PE file
- Executes dropped EXE 16 IoCs
- Checks computer location settings 2 TTPs 4 IoCs
Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL 3 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.
- Legitimate hosting services abused for malware hosting/C2 1 TTPs
- 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 1 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 2 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.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 24 IoCs
- Suspicious use of AdjustPrivilegeToken 64 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\49EA.dll1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\49EA.dll2⤵
- Loads dropped DLL
-
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C:\Users\Admin\AppData\Local\Temp\4BCF.exeC:\Users\Admin\AppData\Local\Temp\4BCF.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\4BCF.exeC:\Users\Admin\AppData\Local\Temp\4BCF.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\618875c8-99f5-42e1-88d7-ef5ae4943173" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
-
-
C:\Users\Admin\AppData\Local\Temp\4BCF.exe"C:\Users\Admin\AppData\Local\Temp\4BCF.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\4BCF.exe"C:\Users\Admin\AppData\Local\Temp\4BCF.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Executes dropped EXE
- Checks computer location settings
-
C:\Users\Admin\AppData\Local\fd59c717-dec2-48c0-a977-ed7c4b7ec73c\build2.exe"C:\Users\Admin\AppData\Local\fd59c717-dec2-48c0-a977-ed7c4b7ec73c\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
-
C:\Users\Admin\AppData\Local\fd59c717-dec2-48c0-a977-ed7c4b7ec73c\build2.exe"C:\Users\Admin\AppData\Local\fd59c717-dec2-48c0-a977-ed7c4b7ec73c\build2.exe"6⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
-
-
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C:\Users\Admin\AppData\Local\fd59c717-dec2-48c0-a977-ed7c4b7ec73c\build3.exe"C:\Users\Admin\AppData\Local\fd59c717-dec2-48c0-a977-ed7c4b7ec73c\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:\Users\Admin\AppData\Local\Temp\515E.exeC:\Users\Admin\AppData\Local\Temp\515E.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\Wbem\wmic.exewmic os get Caption2⤵
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\cmd.execmd /C "wmic path win32_VideoController get name"2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\Wbem\WMIC.exewmic path win32_VideoController get name3⤵
- Suspicious use of AdjustPrivilegeToken
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-
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C:\Windows\SysWOW64\cmd.execmd /C "wmic cpu get name"2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\Wbem\WMIC.exewmic cpu get name3⤵
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-
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C:\Users\Admin\AppData\Local\Temp\62B4.exeC:\Users\Admin\AppData\Local\Temp\62B4.exe1⤵
- Executes dropped EXE
-
C:\Users\Admin\AppData\Local\Temp\6555.exeC:\Users\Admin\AppData\Local\Temp\6555.exe1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
-
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⤵
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C:\Users\Admin\AppData\Local\Temp\D0D2.exeC:\Users\Admin\AppData\Local\Temp\D0D2.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4964 -s 12362⤵
- Program crash
-
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C:\Users\Admin\AppData\Local\Temp\D392.exeC:\Users\Admin\AppData\Local\Temp\D392.exe1⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of SetThreadContext
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANQAwAA==2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\D392.exeC:\Users\Admin\AppData\Local\Temp\D392.exe2⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Temp\EEBC.exeC:\Users\Admin\AppData\Local\Temp\EEBC.exe1⤵
- Executes dropped EXE
- Checks computer location settings
-
C:\Windows\Temp\1.exe"C:\Windows\Temp\1.exe"2⤵
- Executes dropped EXE
-
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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⤵
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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⤵
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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:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4964 -ip 49641⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
mozglue.dll
nss3.dll
07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
4BCF.exe
49EA.dll
49EA.dll
4BCF.exe
4BCF.exe
4BCF.exe
4BCF.exe
4BCF.exe
515E.exe
515E.exe
62B4.exe
62B4.exe
6555.exe
6555.exe
D0D2.exe
D0D2.exe
D392.exe
D392.exe
D392.exe
EEBC.exe
EEBC.exe
build2.exe
build2.exe
build2.exe
build3.exe
build3.exe
mstsca.exe
mstsca.exe
1.exe
1.exe
memory/480-282-0x0000000000EA0000-0x0000000000EA6000-memory.dmp
memory/480-283-0x0000000000E90000-0x0000000000E9B000-memory.dmp
memory/1144-161-0x0000000000400000-0x0000000000582000-memory.dmp
memory/1144-172-0x0000000000400000-0x0000000000582000-memory.dmp
memory/1144-160-0x00000000005C0000-0x00000000005C9000-memory.dmp
memory/1144-159-0x000000000064D000-0x000000000065D000-memory.dmp
memory/2008-291-0x0000000000980000-0x0000000000988000-memory.dmp
memory/2008-292-0x0000000000970000-0x000000000097B000-memory.dmp
memory/2180-250-0x0000000000B20000-0x0000000000B29000-memory.dmp
memory/2180-247-0x0000000000B30000-0x0000000000B35000-memory.dmp
memory/2268-272-0x0000000002ED0000-0x0000000002F06000-memory.dmp
memory/2268-287-0x0000000005D30000-0x0000000005D96000-memory.dmp
memory/2268-284-0x0000000005620000-0x0000000005686000-memory.dmp
memory/2268-277-0x0000000005700000-0x0000000005D28000-memory.dmp
memory/2516-278-0x00000000008F0000-0x00000000008F5000-memory.dmp
memory/2516-279-0x00000000008E0000-0x00000000008E9000-memory.dmp
memory/3340-233-0x00000000020E0000-0x0000000002127000-memory.dmp
memory/3340-232-0x00000000004B0000-0x00000000004D9000-memory.dmp
memory/3344-239-0x0000000000400000-0x000000000045B000-memory.dmp
memory/3344-294-0x0000000000400000-0x000000000045B000-memory.dmp
memory/3344-234-0x0000000000400000-0x000000000045B000-memory.dmp
memory/3344-229-0x0000000000400000-0x000000000045B000-memory.dmp
memory/3344-243-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/3344-231-0x0000000000400000-0x000000000045B000-memory.dmp
memory/3360-195-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3360-223-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3360-188-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3360-186-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3524-216-0x00000000031B0000-0x0000000003276000-memory.dmp
memory/3524-217-0x0000000003280000-0x0000000003330000-memory.dmp
memory/3524-202-0x0000000003060000-0x00000000031A9000-memory.dmp
memory/3524-201-0x0000000002D80000-0x0000000002F0C000-memory.dmp
memory/3524-220-0x0000000003280000-0x0000000003330000-memory.dmp
memory/3524-222-0x0000000003060000-0x00000000031A9000-memory.dmp
memory/3528-168-0x00000000005A1000-0x0000000000633000-memory.dmp
memory/3528-170-0x0000000002200000-0x000000000231B000-memory.dmp
memory/3656-165-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3656-182-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3656-179-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3656-169-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3656-176-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3656-167-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3664-156-0x0000000000E40000-0x0000000000EAB000-memory.dmp
memory/3664-162-0x0000000000E40000-0x0000000000EAB000-memory.dmp
memory/3664-155-0x0000000000EB0000-0x0000000000F25000-memory.dmp
memory/3668-266-0x0000000001220000-0x000000000122C000-memory.dmp
memory/3668-265-0x0000000001230000-0x0000000001236000-memory.dmp
memory/3740-270-0x0000000000900000-0x0000000000922000-memory.dmp
memory/3740-271-0x00000000008D0000-0x00000000008F7000-memory.dmp
memory/3804-187-0x00000000006E0000-0x0000000000772000-memory.dmp
memory/4396-203-0x0000000000B10000-0x0000000000BC0000-memory.dmp
memory/4396-224-0x00000000056F0000-0x0000000005712000-memory.dmp
memory/4504-289-0x0000000000FE0000-0x0000000000FED000-memory.dmp
memory/4504-288-0x0000000000FF0000-0x0000000000FF7000-memory.dmp
memory/4652-158-0x00000000001F0000-0x00000000001FC000-memory.dmp
memory/4840-318-0x0000000000400000-0x0000000000428000-memory.dmp
memory/4964-213-0x00000000005E0000-0x0000000000618000-memory.dmp
memory/4964-273-0x00000000050F0000-0x0000000005708000-memory.dmp
memory/4964-211-0x00000000006DF000-0x0000000000709000-memory.dmp
memory/4964-281-0x00000000006DF000-0x0000000000709000-memory.dmp
memory/4964-214-0x0000000000400000-0x0000000000470000-memory.dmp
memory/4964-276-0x0000000005750000-0x000000000585A000-memory.dmp
memory/4964-275-0x0000000005730000-0x0000000005742000-memory.dmp
memory/4964-286-0x0000000005880000-0x00000000058BC000-memory.dmp
memory/4964-218-0x0000000004AD0000-0x0000000005074000-memory.dmp
memory/5020-293-0x0000000000CE0000-0x0000000000CE7000-memory.dmp
memory/5020-226-0x0000000000CE0000-0x0000000000CE7000-memory.dmp
memory/5020-227-0x0000000000CD0000-0x0000000000CDB000-memory.dmp
memory/5068-132-0x000000000071D000-0x000000000072D000-memory.dmp
memory/5068-137-0x0000000000400000-0x0000000000581000-memory.dmp
memory/5068-136-0x00000000006E0000-0x00000000006E9000-memory.dmp
memory/5068-135-0x000000000071D000-0x000000000072D000-memory.dmp
memory/5068-134-0x0000000000400000-0x0000000000581000-memory.dmp
memory/5068-133-0x00000000006E0000-0x00000000006E9000-memory.dmp
memory/5108-295-0x00000000006A0000-0x00000000006A9000-memory.dmp
memory/5108-240-0x00000000006A0000-0x00000000006A9000-memory.dmp
memory/5108-241-0x0000000000690000-0x000000000069F000-memory.dmp