Analysis
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max time kernel
160s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
20-03-2024 21:04
Static task
static1
Behavioral task
behavioral1
Sample
b9c144592964694742c93d09a6db9194a58cfed85c9a81f00b5ae2d14ac5c87d.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
b9c144592964694742c93d09a6db9194a58cfed85c9a81f00b5ae2d14ac5c87d.exe
Resource
win10v2004-20240226-en
General
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Target
b9c144592964694742c93d09a6db9194a58cfed85c9a81f00b5ae2d14ac5c87d.exe
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Size
888KB
-
MD5
cf659feea0c1c9e0a1705e076b831f48
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SHA1
4e79ae9003d92a10d09fdb231512ca914c60a7c7
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SHA256
b9c144592964694742c93d09a6db9194a58cfed85c9a81f00b5ae2d14ac5c87d
-
SHA512
6ebf5d751d94772def751a6085e233e8cadb0c4c29193be247d0b11c977370ae82a2d5190bae463b0de60cbe8bf0c2c7a4b0dd84f9c2fd142e7ededc42afdfc4
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SSDEEP
12288:oXxu5oy0XhL9ljnp9zIO6S33Ys1fCjPfeCMVAgfMCf3e9:ohAcXhL9lV9cHSY2ZCMVAgfM
Malware Config
Extracted
remcos
RemoteHost
127.0.0.1:47212
officerem.duckdns.org:47212
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audio_folder
MicRecords
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audio_record_time
5
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connect_delay
0
-
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
-
mutex
Rmc-I8N3XG
-
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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ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
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ModiLoader Second Stage 1 IoCs
Processes:
resource yara_rule behavioral2/memory/1720-2-0x0000000002980000-0x0000000003980000-memory.dmp modiloader_stage2 -
Executes dropped EXE 1 IoCs
Processes:
2155736.exepid process 1640 2155736.exe -
Loads dropped DLL 1 IoCs
Processes:
2155736.exepid process 1640 2155736.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
b9c144592964694742c93d09a6db9194a58cfed85c9a81f00b5ae2d14ac5c87d.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Hmbaewme = "C:\\Users\\Public\\Hmbaewme.url" b9c144592964694742c93d09a6db9194a58cfed85c9a81f00b5ae2d14ac5c87d.exe -
Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.
Processes:
description flow ioc HTTP User-Agent header 48 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
powershell.exepid process 1840 powershell.exe 1840 powershell.exe 1840 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 1840 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
colorcpl.exepid process 856 colorcpl.exe -
Suspicious use of WriteProcessMemory 24 IoCs
Processes:
b9c144592964694742c93d09a6db9194a58cfed85c9a81f00b5ae2d14ac5c87d.execmd.exe2155736.execmd.execmd.exedescription pid process target process PID 1720 wrote to memory of 2440 1720 b9c144592964694742c93d09a6db9194a58cfed85c9a81f00b5ae2d14ac5c87d.exe cmd.exe PID 1720 wrote to memory of 2440 1720 b9c144592964694742c93d09a6db9194a58cfed85c9a81f00b5ae2d14ac5c87d.exe cmd.exe PID 1720 wrote to memory of 2440 1720 b9c144592964694742c93d09a6db9194a58cfed85c9a81f00b5ae2d14ac5c87d.exe cmd.exe PID 1720 wrote to memory of 2764 1720 b9c144592964694742c93d09a6db9194a58cfed85c9a81f00b5ae2d14ac5c87d.exe cmd.exe PID 1720 wrote to memory of 2764 1720 b9c144592964694742c93d09a6db9194a58cfed85c9a81f00b5ae2d14ac5c87d.exe cmd.exe PID 1720 wrote to memory of 2764 1720 b9c144592964694742c93d09a6db9194a58cfed85c9a81f00b5ae2d14ac5c87d.exe cmd.exe PID 1720 wrote to memory of 4860 1720 b9c144592964694742c93d09a6db9194a58cfed85c9a81f00b5ae2d14ac5c87d.exe cmd.exe PID 1720 wrote to memory of 4860 1720 b9c144592964694742c93d09a6db9194a58cfed85c9a81f00b5ae2d14ac5c87d.exe cmd.exe PID 1720 wrote to memory of 4860 1720 b9c144592964694742c93d09a6db9194a58cfed85c9a81f00b5ae2d14ac5c87d.exe cmd.exe PID 4860 wrote to memory of 1640 4860 cmd.exe 2155736.exe PID 4860 wrote to memory of 1640 4860 cmd.exe 2155736.exe PID 1640 wrote to memory of 2320 1640 2155736.exe cmd.exe PID 1640 wrote to memory of 2320 1640 2155736.exe cmd.exe PID 2320 wrote to memory of 4520 2320 cmd.exe cmd.exe PID 2320 wrote to memory of 4520 2320 cmd.exe cmd.exe PID 4520 wrote to memory of 1840 4520 cmd.exe powershell.exe PID 4520 wrote to memory of 1840 4520 cmd.exe powershell.exe PID 1720 wrote to memory of 3568 1720 b9c144592964694742c93d09a6db9194a58cfed85c9a81f00b5ae2d14ac5c87d.exe extrac32.exe PID 1720 wrote to memory of 3568 1720 b9c144592964694742c93d09a6db9194a58cfed85c9a81f00b5ae2d14ac5c87d.exe extrac32.exe PID 1720 wrote to memory of 3568 1720 b9c144592964694742c93d09a6db9194a58cfed85c9a81f00b5ae2d14ac5c87d.exe extrac32.exe PID 1720 wrote to memory of 856 1720 b9c144592964694742c93d09a6db9194a58cfed85c9a81f00b5ae2d14ac5c87d.exe colorcpl.exe PID 1720 wrote to memory of 856 1720 b9c144592964694742c93d09a6db9194a58cfed85c9a81f00b5ae2d14ac5c87d.exe colorcpl.exe PID 1720 wrote to memory of 856 1720 b9c144592964694742c93d09a6db9194a58cfed85c9a81f00b5ae2d14ac5c87d.exe colorcpl.exe PID 1720 wrote to memory of 856 1720 b9c144592964694742c93d09a6db9194a58cfed85c9a81f00b5ae2d14ac5c87d.exe colorcpl.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b9c144592964694742c93d09a6db9194a58cfed85c9a81f00b5ae2d14ac5c87d.exe"C:\Users\Admin\AppData\Local\Temp\b9c144592964694742c93d09a6db9194a58cfed85c9a81f00b5ae2d14ac5c87d.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1720 -
C:\Windows\SysWOW64\cmd.execmd /c mkdir "\\?\C:\Windows "2⤵PID:2440
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C:\Windows\SysWOW64\cmd.execmd /c mkdir "\\?\C:\Windows \System32"2⤵PID:2764
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C:\Windows\SysWOW64\cmd.execmd /c "C:\Windows \System32\2155736.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:4860 -
C:\Windows \System32\2155736.exe"C:\Windows \System32\2155736.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1640 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\windows \system32\KDECO.bat""4⤵
- Suspicious use of WriteProcessMemory
PID:2320 -
C:\Windows\system32\cmd.execmd /c powershell.exe -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"5⤵
- Suspicious use of WriteProcessMemory
PID:4520 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"6⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1840 -
C:\Windows\SysWOW64\extrac32.exeC:\\Windows\\System32\\extrac32.exe /C /Y C:\Users\Admin\AppData\Local\Temp\b9c144592964694742c93d09a6db9194a58cfed85c9a81f00b5ae2d14ac5c87d.exe C:\\Users\\Public\\Libraries\\Hmbaewme.PIF2⤵PID:3568
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C:\Windows\SysWOW64\colorcpl.exeC:\Windows\System32\colorcpl.exe2⤵
- Suspicious use of SetWindowsHookEx
PID:856
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
144B
MD585cadcdf55b9f07f12caf7de986cc6dc
SHA1ad115bc5d554cf897dcec2927455178a7e352c63
SHA25678f3c99ae3e69ea01062b5be6ff5137852ff1a306760bc3b0390a1b3637a9fc9
SHA5123f946533f33ec7dc7328a1856901c0fd552523c10245a26378f19688545f76d5edfd876f2e2ed08ec9b089f45c9a5aa74ce81f7da8ae4b8683dbccc1cbb9617f
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
128KB
MD5231ce1e1d7d98b44371ffff407d68b59
SHA125510d0f6353dbf0c9f72fc880de7585e34b28ff
SHA25630951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96
SHA512520887b01bda96b7c4f91b9330a5c03a12f7c7f266d4359432e7bacc76b0eef377c05a4361f8fa80ad0b94b5865699d747a5d94a2d3dcdb85dabf5887bb6c612
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Filesize
112KB
MD5fa7aa88417d0c48807144a1a48fe3fbc
SHA16f5ec990b12d4a6075050a94e0d68d03781fa46d
SHA2562019dcd18ba7d5554a4a9da882740aa883941670af3de9396960081a0f8aa098
SHA51299b2eb6f8e7d00a3803cba229149e5e0cb67a3deb607782c55fbacd25d9c074cce83759de15490eff939d5ad98f26cdbd44395cc79ffe22753e16c3d9e3b5fff
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Filesize
11KB
MD5c545650595b479c81ad6b9d8882aae39
SHA17a98aa2e6eee23b3c1bba876955d525bc618b3f0
SHA256a3a80983cb33159f0455fa0135789402558baa1460db94d0071318512b8cb5f9
SHA51285ac596a7da9072a28c4178e4fdedc98f1b49c8e3fe5612cfe464833297b13f65d2dc59b52d7fc9970cff8f98d954111229aec0ed9dded454e03b0cf4ebb6ff3