Analysis
- max time kernel
88s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
18/01/2024, 01:01
General
- Target toolspub2.exe
- Size 283KB
- Sample240118-bc8fjaadc5
- SHA256 48684fe74ef34bd1c9542aea357d418b96df47273d809e6ebdc38e538bc66d42
Malware Config
Extracted
-
smokeloader
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up3
Extracted
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smokeloader
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2022
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http://trad-einmyus.com/index.php
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http://tradein-myus.com/index.php
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http://trade-inmyus.com/index.php
Extracted
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djvu
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http://habrafa.com/test1/get.php
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extension
.cdpo
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offline_id
Bn3q97hwLouKbhkQRNO4SeV07gjdEQVm8NKhg0t1
-
payload_url
http://brusuax.com/dl/build2.exe
http://habrafa.com/files/1/build3.exe
-
ransomnote
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Signatures
- Detect ZGRat V1 26 IoCs
- Detected Djvu ransomware 6 IoCs
- Djvu Ransomware
Ransomware which is a variant of the STOP family.
- SmokeLoader
Modular backdoor trojan in use since 2014.
- ZGRat
ZGRat is remote access trojan written in C#.
- Downloads MZ/PE file
- Modifies Installed Components in the registry 2 TTPs 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Deletes itself 1 IoCs
- Executes dropped EXE 5 IoCs
- Modifies file permissions 1 TTPs 1 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Enumerates connected drives 3 TTPs 2 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- Checks SCSI registry key(s) 3 TTPs 30 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Modifies registry class 10 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 15 IoCs
- Suspicious use of FindShellTrayWindow 8 IoCs
- Suspicious use of SendNotifyMessage 10 IoCs
- Suspicious use of WriteProcessMemory 24 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\toolspub2.exe"C:\Users\Admin\AppData\Local\Temp\toolspub2.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
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C:\Users\Admin\AppData\Local\Temp\FDA.exeC:\Users\Admin\AppData\Local\Temp\FDA.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\FDA.exeC:\Users\Admin\AppData\Local\Temp\FDA.exe2⤵
- Checks computer location settings
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\c7a3fe9a-c0f3-4495-bfc6-3d4948ed29d7" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
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C:\Users\Admin\AppData\Local\Temp\FDA.exe"C:\Users\Admin\AppData\Local\Temp\FDA.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\Temp\FDA.exe"C:\Users\Admin\AppData\Local\Temp\FDA.exe" --Admin IsNotAutoStart IsNotTask4⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2800 -s 5685⤵
- Program crash
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C:\Users\Admin\AppData\Local\Temp\64F0.exeC:\Users\Admin\AppData\Local\Temp\64F0.exe1⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\Temp\7992.exeC:\Users\Admin\AppData\Local\Temp\7992.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\7992.exeC:\Users\Admin\AppData\Local\Temp\7992.exe2⤵
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe3⤵
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe4⤵
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-
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C:\Windows\explorer.exeexplorer.exe1⤵
- Modifies Installed Components in the registry
- Enumerates connected drives
- Checks SCSI registry key(s)
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
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C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 192 -p 2800 -ip 28001⤵
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C:\Windows\explorer.exeexplorer.exe1⤵
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C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
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C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca1⤵
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C:\Windows\explorer.exeexplorer.exe1⤵
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C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca1⤵
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C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
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C:\Windows\explorer.exeexplorer.exe1⤵
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C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
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C:\Windows\explorer.exeexplorer.exe1⤵
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C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
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C:\Windows\explorer.exeexplorer.exe1⤵
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C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
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C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca1⤵
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C:\Windows\explorer.exeexplorer.exe1⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
80237EE4964FC9C409AAF55BF996A292_D46D6FA25B74360E1349F9015B5CCE53
80237EE4964FC9C409AAF55BF996A292_D46D6FA25B74360E1349F9015B5CCE53
7992.exe.log
fbaf94e759052658216786bfbabcdced1b67a5c2.tbres
microsoft.windows[1].xml
64F0.exe
64F0.exe
7992.exe
7992.exe
FDA.exe
FDA.exe
memory/876-4271-0x00007FFDF69F0000-0x00007FFDF74B1000-memory.dmp
memory/876-4274-0x00000241BFCD0000-0x00000241BFCE0000-memory.dmp
memory/912-49-0x0000000001330000-0x0000000001362000-memory.dmp
memory/912-48-0x0000000001330000-0x0000000001362000-memory.dmp
memory/912-42-0x0000000001320000-0x0000000001321000-memory.dmp
memory/912-43-0x0000000000060000-0x0000000000914000-memory.dmp
memory/912-44-0x0000000000060000-0x0000000000914000-memory.dmp
memory/912-47-0x0000000001330000-0x0000000001362000-memory.dmp
memory/912-46-0x0000000001330000-0x0000000001362000-memory.dmp
memory/912-57-0x0000000000060000-0x0000000000914000-memory.dmp
memory/924-4267-0x0000029CC4610000-0x0000029CC4611000-memory.dmp
memory/924-4273-0x00007FFDF69F0000-0x00007FFDF74B1000-memory.dmp
memory/924-3286-0x00007FFDF69F0000-0x00007FFDF74B1000-memory.dmp
memory/1424-6-0x0000000000400000-0x0000000000869000-memory.dmp
memory/1424-4-0x0000000000400000-0x0000000000869000-memory.dmp
memory/1424-3-0x0000000000400000-0x0000000000869000-memory.dmp
memory/1424-2-0x0000000000B10000-0x0000000000B1B000-memory.dmp
memory/1424-1-0x0000000000BA0000-0x0000000000CA0000-memory.dmp
memory/1500-3284-0x000001A657620000-0x000001A657630000-memory.dmp
memory/1500-3283-0x000001A657620000-0x000001A657630000-memory.dmp
memory/1500-3280-0x000001A658E60000-0x000001A658EB6000-memory.dmp
memory/1500-3279-0x000001A657600000-0x000001A657608000-memory.dmp
memory/1500-1050-0x000001A657620000-0x000001A657630000-memory.dmp
memory/1500-1049-0x000001A658ED0000-0x000001A658FB6000-memory.dmp
memory/1500-1048-0x00007FFDF69F0000-0x00007FFDF74B1000-memory.dmp
memory/1500-3285-0x00007FFDF69F0000-0x00007FFDF74B1000-memory.dmp
memory/1500-1045-0x0000000000400000-0x00000000004AA000-memory.dmp
memory/2444-18-0x0000000002590000-0x00000000026AB000-memory.dmp
memory/2444-17-0x00000000024F0000-0x000000000258A000-memory.dmp
memory/3576-107-0x0000000002FB0000-0x0000000002FB1000-memory.dmp
memory/3576-5-0x0000000002FC0000-0x0000000002FD6000-memory.dmp
memory/4460-249-0x0000000002430000-0x00000000024CE000-memory.dmp
memory/4468-82-0x0000016FF0DF0000-0x0000016FF0F1D000-memory.dmp
memory/4468-90-0x0000016FF0DF0000-0x0000016FF0F1D000-memory.dmp
memory/4468-92-0x0000016FF0DF0000-0x0000016FF0F1D000-memory.dmp
memory/4468-94-0x0000016FF0DF0000-0x0000016FF0F1D000-memory.dmp
memory/4468-96-0x0000016FF0DF0000-0x0000016FF0F1D000-memory.dmp
memory/4468-98-0x0000016FF0DF0000-0x0000016FF0F1D000-memory.dmp
memory/4468-100-0x0000016FF0DF0000-0x0000016FF0F1D000-memory.dmp
memory/4468-102-0x0000016FF0DF0000-0x0000016FF0F1D000-memory.dmp
memory/4468-88-0x0000016FF0DF0000-0x0000016FF0F1D000-memory.dmp
memory/4468-108-0x0000016FF0DF0000-0x0000016FF0F1D000-memory.dmp
memory/4468-86-0x0000016FF0DF0000-0x0000016FF0F1D000-memory.dmp
memory/4468-84-0x0000016FF0DF0000-0x0000016FF0F1D000-memory.dmp
memory/4468-80-0x0000016FF0DF0000-0x0000016FF0F1D000-memory.dmp
memory/4468-1034-0x00007FFDF69F0000-0x00007FFDF74B1000-memory.dmp
memory/4468-1035-0x0000016FD6AF0000-0x0000016FD6AF1000-memory.dmp
memory/4468-1036-0x0000016FF1090000-0x0000016FF115A000-memory.dmp
memory/4468-1037-0x0000016FF0D80000-0x0000016FF0DCC000-memory.dmp
memory/4468-78-0x0000016FF0DF0000-0x0000016FF0F1D000-memory.dmp
memory/4468-76-0x0000016FF0DF0000-0x0000016FF0F1D000-memory.dmp
memory/4468-1047-0x00007FFDF69F0000-0x00007FFDF74B1000-memory.dmp
memory/4468-1046-0x0000016FF0DE0000-0x0000016FF0DF0000-memory.dmp
memory/4468-74-0x0000016FF0DF0000-0x0000016FF0F1D000-memory.dmp
memory/4468-72-0x0000016FF0DF0000-0x0000016FF0F1D000-memory.dmp
memory/4468-70-0x0000016FF0DF0000-0x0000016FF0F1D000-memory.dmp
memory/4468-68-0x0000016FF0DF0000-0x0000016FF0F1D000-memory.dmp
memory/4468-66-0x0000016FF0DF0000-0x0000016FF0F1D000-memory.dmp
memory/4468-64-0x0000016FF0DF0000-0x0000016FF0F1D000-memory.dmp
memory/4468-62-0x0000016FF0DF0000-0x0000016FF0F1D000-memory.dmp
memory/4468-60-0x0000016FF0DF0000-0x0000016FF0F1D000-memory.dmp
memory/4468-59-0x0000016FF0DF0000-0x0000016FF0F1D000-memory.dmp
memory/4468-58-0x0000016FF0DF0000-0x0000016FF0F22000-memory.dmp
memory/4468-56-0x0000016FF0DE0000-0x0000016FF0DF0000-memory.dmp
memory/4468-55-0x00007FFDF69F0000-0x00007FFDF74B1000-memory.dmp
memory/4468-54-0x0000016FD64F0000-0x0000016FD671C000-memory.dmp
memory/4636-22-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4636-21-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4636-19-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4636-23-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4636-36-0x0000000000400000-0x0000000000537000-memory.dmp