Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231127-en -
resource tags
arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system -
submitted
28-11-2023 08:41
Static task
static1
Behavioral task
behavioral1
Sample
payslip2833.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
payslip2833.exe
Resource
win10v2004-20231127-en
General
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Target
payslip2833.exe
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Size
2.8MB
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MD5
2ba1fa878bdfbbbdea5a8dfdf0c8e3fa
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SHA1
87a0d4d3f87d7d6d0b370ec78465222de10db029
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SHA256
4d227c0a92030e8410260bf84dd992d346d2d4002e7af69e792d3ef84e60f317
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SHA512
1b0e2a33661876ca2bf14ea3211564b62a17a6275a870de15e8143df9a8520ca9da702224ff5e398ae22e9770dc41ecefc8960f9fd182cca1adfbfe55f2a216c
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SSDEEP
49152:Xm/PpH8yc0/wU2lpe63ZrxKrVEbRIqiPt41eFehg1mQzZ:XOpcyV/wjpdZrxEVEtI14UqnY
Malware Config
Extracted
remcos
babbalog
mxzaa.duckdns.org:2404
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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
babaa
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mouse_option
false
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mutex
Rmc-17YJIC
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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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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/868-2-0x0000000004400000-0x0000000005400000-memory.dmp modiloader_stage2 -
Executes dropped EXE 1 IoCs
Processes:
easinvoker.exepid process 1256 easinvoker.exe -
Loads dropped DLL 1 IoCs
Processes:
easinvoker.exepid process 1256 easinvoker.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
payslip2833.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3455265224-196869244-2056873367-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Wztxsapx = "C:\\Users\\Public\\Wztxsapx.url" payslip2833.exe -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
xcopy.exexcopy.exexcopy.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier xcopy.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier xcopy.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier xcopy.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Script User-Agent 2 IoCs
Uses user-agent string associated with script host/environment.
Processes:
description flow ioc HTTP User-Agent header 24 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 26 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid process 3800 powershell.exe 3800 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 3800 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
SndVol.exepid process 2428 SndVol.exe -
Suspicious use of WriteProcessMemory 42 IoCs
Processes:
payslip2833.execmd.exeeasinvoker.execmd.execmd.exedescription pid process target process PID 868 wrote to memory of 1720 868 payslip2833.exe cmd.exe PID 868 wrote to memory of 1720 868 payslip2833.exe cmd.exe PID 868 wrote to memory of 1720 868 payslip2833.exe cmd.exe PID 1720 wrote to memory of 472 1720 cmd.exe cmd.exe PID 1720 wrote to memory of 472 1720 cmd.exe cmd.exe PID 1720 wrote to memory of 472 1720 cmd.exe cmd.exe PID 1720 wrote to memory of 2400 1720 cmd.exe cmd.exe PID 1720 wrote to memory of 2400 1720 cmd.exe cmd.exe PID 1720 wrote to memory of 2400 1720 cmd.exe cmd.exe PID 1720 wrote to memory of 1360 1720 cmd.exe cmd.exe PID 1720 wrote to memory of 1360 1720 cmd.exe cmd.exe PID 1720 wrote to memory of 1360 1720 cmd.exe cmd.exe PID 1720 wrote to memory of 2000 1720 cmd.exe xcopy.exe PID 1720 wrote to memory of 2000 1720 cmd.exe xcopy.exe PID 1720 wrote to memory of 2000 1720 cmd.exe xcopy.exe PID 1720 wrote to memory of 5012 1720 cmd.exe cmd.exe PID 1720 wrote to memory of 5012 1720 cmd.exe cmd.exe PID 1720 wrote to memory of 5012 1720 cmd.exe cmd.exe PID 1720 wrote to memory of 4912 1720 cmd.exe xcopy.exe PID 1720 wrote to memory of 4912 1720 cmd.exe xcopy.exe PID 1720 wrote to memory of 4912 1720 cmd.exe xcopy.exe PID 1720 wrote to memory of 3528 1720 cmd.exe cmd.exe PID 1720 wrote to memory of 3528 1720 cmd.exe cmd.exe PID 1720 wrote to memory of 3528 1720 cmd.exe cmd.exe PID 1720 wrote to memory of 3380 1720 cmd.exe xcopy.exe PID 1720 wrote to memory of 3380 1720 cmd.exe xcopy.exe PID 1720 wrote to memory of 3380 1720 cmd.exe xcopy.exe PID 1720 wrote to memory of 1256 1720 cmd.exe easinvoker.exe PID 1720 wrote to memory of 1256 1720 cmd.exe easinvoker.exe PID 1256 wrote to memory of 3832 1256 easinvoker.exe cmd.exe PID 1256 wrote to memory of 3832 1256 easinvoker.exe cmd.exe PID 1720 wrote to memory of 5072 1720 cmd.exe PING.EXE PID 1720 wrote to memory of 5072 1720 cmd.exe PING.EXE PID 1720 wrote to memory of 5072 1720 cmd.exe PING.EXE PID 3832 wrote to memory of 3436 3832 cmd.exe cmd.exe PID 3832 wrote to memory of 3436 3832 cmd.exe cmd.exe PID 3436 wrote to memory of 3800 3436 cmd.exe powershell.exe PID 3436 wrote to memory of 3800 3436 cmd.exe powershell.exe PID 868 wrote to memory of 2428 868 payslip2833.exe SndVol.exe PID 868 wrote to memory of 2428 868 payslip2833.exe SndVol.exe PID 868 wrote to memory of 2428 868 payslip2833.exe SndVol.exe PID 868 wrote to memory of 2428 868 payslip2833.exe SndVol.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\payslip2833.exe"C:\Users\Admin\AppData\Local\Temp\payslip2833.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Public\Libraries\WztxsapxO.bat" "2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.execmd.exe /c mkdir "\\?\C:\Windows "3⤵
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C:\Windows\SysWOW64\cmd.execmd.exe /c mkdir "\\?\C:\Windows \System32"3⤵
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C:\Windows\SysWOW64\cmd.execmd.exe /c ECHO F3⤵
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C:\Windows\SysWOW64\xcopy.exexcopy "easinvoker.exe" "C:\Windows \System32\" /K /D /H /Y3⤵
- Enumerates system info in registry
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C:\Windows\SysWOW64\cmd.execmd.exe /c ECHO F3⤵
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C:\Windows\SysWOW64\xcopy.exexcopy "netutils.dll" "C:\Windows \System32\" /K /D /H /Y3⤵
- Enumerates system info in registry
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C:\Windows\SysWOW64\cmd.execmd.exe /c ECHO F3⤵
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C:\Windows\SysWOW64\xcopy.exexcopy "KDECO.bat" "C:\Windows \System32\" /K /D /H /Y3⤵
- Enumerates system info in registry
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C:\Windows \System32\easinvoker.exe"C:\Windows \System32\easinvoker.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\windows \system32\KDECO.bat""4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.execmd.exe /c start /min powershell.exe -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"5⤵
- Suspicious use of WriteProcessMemory
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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
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C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 63⤵
- Runs ping.exe
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C:\Windows\SysWOW64\SndVol.exeC:\Windows\System32\SndVol.exe2⤵
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\ProgramData\babaa\logs.datFilesize
144B
MD5e47739a978c06f3ba911dc71b7dfc209
SHA146df7f593ce2a817360e8354459af096fea1e900
SHA256a94bf8237e63769bd52756d15a8064f43b691d3c9950622a213863e05a549e06
SHA5121785eaa96ac43f8bd748f433410d128d77f22b3f3dc2d1977f9a9e96ddb948d6b81b29323cb8033d4a089eda559f00ce92f67c358e8f759ccf775bb1da4c5b00
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C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_04jjealh.qzh.ps1Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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C:\Users\Public\Libraries\KDECO.batFilesize
152B
MD57e5fbd29557a68383dfb34e696964e93
SHA1c1f748f89b47864301255d1fb2bfed04ed0d1300
SHA2564e55b1bbe2e0e099592ac57a747fa8d4ef67409901d6c64323a1b73d50e5de67
SHA5127dcb6582b03e7bf0cab2168dc775ca6d7a15ebb097fd2cdd3445b6d35ee128386fb9aa6a548b745c32540e358b2aa4d7c78a6f59f85c32065735fc54a6a2bb6a
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C:\Users\Public\Libraries\WztxsapxO.batFilesize
466B
MD59e80036aabe3227dbf98b3975051a53b
SHA19670aab8897770a93293d85426b7b13dda23a152
SHA256964aab3b72b3545fabc58a209714ebeade739a0fec40b33af675d7157b9cb252
SHA512107fb6b364cf92730aca1a044f7769a1f4aed39a72f031a5004ccf09b3bebabac5fc88b3d0f85eb64c665404136db13678718bad36bea4311f07726684ed0a03
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C:\Users\Public\Libraries\easinvoker.exeFilesize
128KB
MD5231ce1e1d7d98b44371ffff407d68b59
SHA125510d0f6353dbf0c9f72fc880de7585e34b28ff
SHA25630951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96
SHA512520887b01bda96b7c4f91b9330a5c03a12f7c7f266d4359432e7bacc76b0eef377c05a4361f8fa80ad0b94b5865699d747a5d94a2d3dcdb85dabf5887bb6c612
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C:\Users\Public\Libraries\netutils.dllFilesize
109KB
MD5f3734dd95652252d02090c287c556522
SHA1a9b9479f66516922a119eec78d3610342f22a68b
SHA256be00f70763a053bf9c4b35e97319afbffa71dbb6e9c2c3c3f642a5e1fa7eb004
SHA51259df477a29d38b8d5b5c4567c241d4ffe1d58926fa6775e1ecb15ec8119cf040be97f83870704b422f044ae56f2a5169c50b92a3e1b75a8069e2a251f9dec41b
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C:\Windows \System32\easinvoker.exeFilesize
128KB
MD5231ce1e1d7d98b44371ffff407d68b59
SHA125510d0f6353dbf0c9f72fc880de7585e34b28ff
SHA25630951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96
SHA512520887b01bda96b7c4f91b9330a5c03a12f7c7f266d4359432e7bacc76b0eef377c05a4361f8fa80ad0b94b5865699d747a5d94a2d3dcdb85dabf5887bb6c612
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C:\Windows \System32\easinvoker.exeFilesize
128KB
MD5231ce1e1d7d98b44371ffff407d68b59
SHA125510d0f6353dbf0c9f72fc880de7585e34b28ff
SHA25630951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96
SHA512520887b01bda96b7c4f91b9330a5c03a12f7c7f266d4359432e7bacc76b0eef377c05a4361f8fa80ad0b94b5865699d747a5d94a2d3dcdb85dabf5887bb6c612
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C:\Windows \System32\netutils.dllFilesize
109KB
MD5f3734dd95652252d02090c287c556522
SHA1a9b9479f66516922a119eec78d3610342f22a68b
SHA256be00f70763a053bf9c4b35e97319afbffa71dbb6e9c2c3c3f642a5e1fa7eb004
SHA51259df477a29d38b8d5b5c4567c241d4ffe1d58926fa6775e1ecb15ec8119cf040be97f83870704b422f044ae56f2a5169c50b92a3e1b75a8069e2a251f9dec41b
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C:\Windows \System32\netutils.dllFilesize
109KB
MD5f3734dd95652252d02090c287c556522
SHA1a9b9479f66516922a119eec78d3610342f22a68b
SHA256be00f70763a053bf9c4b35e97319afbffa71dbb6e9c2c3c3f642a5e1fa7eb004
SHA51259df477a29d38b8d5b5c4567c241d4ffe1d58926fa6775e1ecb15ec8119cf040be97f83870704b422f044ae56f2a5169c50b92a3e1b75a8069e2a251f9dec41b
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C:\windows \system32\KDECO.batFilesize
152B
MD57e5fbd29557a68383dfb34e696964e93
SHA1c1f748f89b47864301255d1fb2bfed04ed0d1300
SHA2564e55b1bbe2e0e099592ac57a747fa8d4ef67409901d6c64323a1b73d50e5de67
SHA5127dcb6582b03e7bf0cab2168dc775ca6d7a15ebb097fd2cdd3445b6d35ee128386fb9aa6a548b745c32540e358b2aa4d7c78a6f59f85c32065735fc54a6a2bb6a
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memory/868-4-0x0000000000400000-0x00000000006DA000-memory.dmpFilesize
2.9MB
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memory/868-0-0x0000000002580000-0x0000000002581000-memory.dmpFilesize
4KB
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memory/868-2-0x0000000004400000-0x0000000005400000-memory.dmpFilesize
16.0MB
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memory/868-1-0x0000000004400000-0x0000000005400000-memory.dmpFilesize
16.0MB
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memory/1256-26-0x00000000613C0000-0x00000000613E2000-memory.dmpFilesize
136KB
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memory/2428-60-0x0000000001200000-0x0000000002200000-memory.dmpFilesize
16.0MB
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memory/2428-53-0x0000000001200000-0x0000000002200000-memory.dmpFilesize
16.0MB
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memory/2428-85-0x0000000001200000-0x0000000002200000-memory.dmpFilesize
16.0MB
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memory/2428-84-0x0000000001200000-0x0000000002200000-memory.dmpFilesize
16.0MB
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memory/2428-46-0x0000000001200000-0x0000000002200000-memory.dmpFilesize
16.0MB
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memory/2428-49-0x0000000001200000-0x0000000002200000-memory.dmpFilesize
16.0MB
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memory/2428-50-0x0000000001200000-0x0000000002200000-memory.dmpFilesize
16.0MB
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memory/2428-51-0x0000000001200000-0x0000000002200000-memory.dmpFilesize
16.0MB
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memory/2428-52-0x0000000001200000-0x0000000002200000-memory.dmpFilesize
16.0MB
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memory/2428-77-0x0000000001200000-0x0000000002200000-memory.dmpFilesize
16.0MB
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memory/2428-54-0x0000000001200000-0x0000000002200000-memory.dmpFilesize
16.0MB
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memory/2428-76-0x0000000001200000-0x0000000002200000-memory.dmpFilesize
16.0MB
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memory/2428-61-0x0000000001200000-0x0000000002200000-memory.dmpFilesize
16.0MB
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memory/2428-69-0x0000000001200000-0x0000000002200000-memory.dmpFilesize
16.0MB
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memory/2428-68-0x0000000001200000-0x0000000002200000-memory.dmpFilesize
16.0MB
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memory/3800-35-0x000001E519A40000-0x000001E519A62000-memory.dmpFilesize
136KB
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memory/3800-40-0x00007FFC6B410000-0x00007FFC6BED1000-memory.dmpFilesize
10.8MB
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memory/3800-41-0x000001E532140000-0x000001E532150000-memory.dmpFilesize
64KB
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memory/3800-44-0x00007FFC6B410000-0x00007FFC6BED1000-memory.dmpFilesize
10.8MB
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memory/3800-42-0x000001E532140000-0x000001E532150000-memory.dmpFilesize
64KB