Analysis
- max time kernel
151s - max time network
193s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
19/10/2022, 23:04
General
- Target file.exe
- Size 229KB
- Sample221019-22ahxacca7
- SHA256 f764e24de1f7c3d3a9c1b7b8c81689cc9a889bdd5f19b983d3015fb07403da9e
Malware Config
Extracted
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djvu
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http://winnlinne.com/lancer/get.php
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extension
.tury
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offline_id
Uz66zEbmA32arcxwT81zZhkb23026oHz5iSp8qt1
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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
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55.1
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517
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https://t.me/tg_privatetalk
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https://nerdculture.de/@yixehi33
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profile_id
517
Extracted
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danabot
-
embedded_hash
56951C922035D696BFCE443750496462
-
type
loader
Signatures
- Danabot
Danabot is a modular banking Trojan that has been linked with other malware.
- Detected Djvu ransomware 10 IoCs
- Detects Smokeloader packer 4 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 11 IoCs
- Checks computer location settings 2 TTPs 2 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 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 2 IoCs
- Checks SCSI registry key(s) 3 TTPs 42 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 1 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 6 IoCs
- Suspicious use of AdjustPrivilegeToken 21 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\8B38.dll1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\8B38.dll2⤵
- Loads dropped DLL
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C:\Users\Admin\AppData\Local\Temp\A4AD.exeC:\Users\Admin\AppData\Local\Temp\A4AD.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\A4AD.exeC:\Users\Admin\AppData\Local\Temp\A4AD.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\67d2a330-5b11-4a0c-ae34-9a3eed7b7779" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
-
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C:\Users\Admin\AppData\Local\Temp\A4AD.exe"C:\Users\Admin\AppData\Local\Temp\A4AD.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\A4AD.exe"C:\Users\Admin\AppData\Local\Temp\A4AD.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\7b122a30-fe64-4510-9788-ee5a8eb559dd\build2.exe"C:\Users\Admin\AppData\Local\7b122a30-fe64-4510-9788-ee5a8eb559dd\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\7b122a30-fe64-4510-9788-ee5a8eb559dd\build2.exe"C:\Users\Admin\AppData\Local\7b122a30-fe64-4510-9788-ee5a8eb559dd\build2.exe"6⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
-
-
-
C:\Users\Admin\AppData\Local\7b122a30-fe64-4510-9788-ee5a8eb559dd\build3.exe"C:\Users\Admin\AppData\Local\7b122a30-fe64-4510-9788-ee5a8eb559dd\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\BBA1.exeC:\Users\Admin\AppData\Local\Temp\BBA1.exe1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
-
C:\Users\Admin\AppData\Local\Temp\BE03.exeC:\Users\Admin\AppData\Local\Temp\BE03.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3576 -s 3402⤵
- Program crash
-
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C:\Users\Admin\AppData\Local\Temp\C1CD.exeC:\Users\Admin\AppData\Local\Temp\C1CD.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4728 -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\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 3576 -ip 35761⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 4728 -ip 47281⤵
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C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵
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C:\Users\Admin\AppData\Local\Temp\327A.exeC:\Users\Admin\AppData\Local\Temp\327A.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\agentactivationruntimestarter.exeC:\Windows\system32\agentactivationruntimestarter.exe2⤵
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k AarSvcGroup -p -s AarSvc1⤵
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x3c8 0x3e01⤵
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
A4AD.exe
build2.exe
build2.exe
build2.exe
build3.exe
build3.exe
327A.exe
327A.exe
8B38.dll
8B38.dll
A4AD.exe
A4AD.exe
A4AD.exe
A4AD.exe
A4AD.exe
BBA1.exe
BBA1.exe
BE03.exe
BE03.exe
C1CD.exe
C1CD.exe
memory/100-155-0x000000000062C000-0x00000000006BE000-memory.dmp
memory/100-157-0x0000000002260000-0x000000000237B000-memory.dmp
memory/344-162-0x00000000001F0000-0x00000000001F9000-memory.dmp
memory/344-183-0x00000000007F3000-0x0000000000803000-memory.dmp
memory/344-161-0x00000000007F3000-0x0000000000803000-memory.dmp
memory/344-184-0x0000000000400000-0x0000000000596000-memory.dmp
memory/344-163-0x0000000000400000-0x0000000000596000-memory.dmp
memory/1120-210-0x0000000000750000-0x0000000000794000-memory.dmp
memory/1120-209-0x0000000000855000-0x000000000087D000-memory.dmp
memory/2456-174-0x0000000000110000-0x000000000011C000-memory.dmp
memory/3284-228-0x0000000000400000-0x00000000006CE000-memory.dmp
memory/3284-222-0x0000000000400000-0x00000000006CE000-memory.dmp
memory/3284-221-0x0000000002490000-0x0000000002752000-memory.dmp
memory/3284-220-0x0000000000958000-0x0000000000A76000-memory.dmp
memory/3576-171-0x0000000000843000-0x0000000000854000-memory.dmp
memory/3576-172-0x0000000000400000-0x0000000000597000-memory.dmp
memory/3860-177-0x0000000000760000-0x00000000007CB000-memory.dmp
memory/3860-170-0x0000000000760000-0x00000000007CB000-memory.dmp
memory/3860-169-0x0000000000A00000-0x0000000000A75000-memory.dmp
memory/4092-186-0x0000000003800000-0x00000000038AD000-memory.dmp
memory/4092-189-0x0000000003630000-0x000000000372E000-memory.dmp
memory/4092-166-0x0000000003430000-0x000000000352E000-memory.dmp
memory/4092-167-0x0000000003630000-0x000000000372E000-memory.dmp
memory/4092-180-0x0000000003730000-0x00000000037F2000-memory.dmp
memory/4168-193-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4168-202-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4168-201-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4168-195-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4224-194-0x00000000008C7000-0x0000000000959000-memory.dmp
memory/4268-154-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4268-160-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4268-185-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4268-165-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4268-152-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4728-173-0x00000000006B0000-0x00000000006B9000-memory.dmp
memory/4728-175-0x0000000000400000-0x0000000000597000-memory.dmp
memory/4728-176-0x00000000006E3000-0x00000000006F4000-memory.dmp
memory/4944-137-0x0000000000400000-0x0000000000597000-memory.dmp
memory/4944-136-0x00000000001F0000-0x00000000001F9000-memory.dmp
memory/4944-132-0x00000000007B3000-0x00000000007C4000-memory.dmp
memory/4944-135-0x00000000007B3000-0x00000000007C4000-memory.dmp
memory/4944-134-0x0000000000400000-0x0000000000597000-memory.dmp
memory/4944-133-0x00000000001F0000-0x00000000001F9000-memory.dmp
memory/5112-212-0x0000000000400000-0x0000000000458000-memory.dmp
memory/5112-215-0x0000000000400000-0x0000000000458000-memory.dmp
memory/5112-214-0x0000000000400000-0x0000000000458000-memory.dmp
memory/5112-216-0x0000000000400000-0x0000000000458000-memory.dmp