Analysis
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max time kernel
141s -
max time network
113s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
23-05-2024 02:23
Static task
static1
Behavioral task
behavioral1
Sample
#$AItslip1546.exe
Resource
win7-20240221-en
General
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Target
#$AItslip1546.exe
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Size
666KB
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MD5
379a6b94c8ebef8ba5772842a3b51fb8
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SHA1
f91a970671bd23608e3e32115c3fb34f92301a30
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SHA256
2ca58fadf27f88b2a39abfd4dbe4950173a7a113bf91b404734510dbfdf7c557
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SHA512
926cc9558a8a88aa3cfe172635e331c0fb630d7e4bcd0f047208d65031f465efbd288e2896dfb322ca03f1cc47be3fccd1e0c88b04858be6aa08e1d6d9e7c64a
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SSDEEP
12288:2xgAmi8LkpEalnNI6k2HE64HZNzcnd39eOf/Ero062EXKffuv4pbuXEBJ4fhZP5g:K1VjEEPHEpNzceocv2IuAZu0BGfb5IL
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.simnu.com - Port:
587 - Username:
[email protected] - Password:
L3tM31n*# - Email To:
[email protected]
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
Processes:
powershell.exepowershell.exepid process 4788 powershell.exe 4628 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
#$AItslip1546.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation #$AItslip1546.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
#$AItslip1546.exedescription pid process target process PID 4836 set thread context of 4544 4836 #$AItslip1546.exe RegSvcs.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 13 IoCs
Processes:
#$AItslip1546.exepowershell.exepowershell.exeRegSvcs.exepid process 4836 #$AItslip1546.exe 4836 #$AItslip1546.exe 4836 #$AItslip1546.exe 4836 #$AItslip1546.exe 4836 #$AItslip1546.exe 4836 #$AItslip1546.exe 4628 powershell.exe 4788 powershell.exe 4788 powershell.exe 4836 #$AItslip1546.exe 4628 powershell.exe 4544 RegSvcs.exe 4544 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
#$AItslip1546.exepowershell.exepowershell.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 4836 #$AItslip1546.exe Token: SeDebugPrivilege 4788 powershell.exe Token: SeDebugPrivilege 4628 powershell.exe Token: SeDebugPrivilege 4544 RegSvcs.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
#$AItslip1546.exedescription pid process target process PID 4836 wrote to memory of 4788 4836 #$AItslip1546.exe powershell.exe PID 4836 wrote to memory of 4788 4836 #$AItslip1546.exe powershell.exe PID 4836 wrote to memory of 4788 4836 #$AItslip1546.exe powershell.exe PID 4836 wrote to memory of 4628 4836 #$AItslip1546.exe powershell.exe PID 4836 wrote to memory of 4628 4836 #$AItslip1546.exe powershell.exe PID 4836 wrote to memory of 4628 4836 #$AItslip1546.exe powershell.exe PID 4836 wrote to memory of 3892 4836 #$AItslip1546.exe schtasks.exe PID 4836 wrote to memory of 3892 4836 #$AItslip1546.exe schtasks.exe PID 4836 wrote to memory of 3892 4836 #$AItslip1546.exe schtasks.exe PID 4836 wrote to memory of 4544 4836 #$AItslip1546.exe RegSvcs.exe PID 4836 wrote to memory of 4544 4836 #$AItslip1546.exe RegSvcs.exe PID 4836 wrote to memory of 4544 4836 #$AItslip1546.exe RegSvcs.exe PID 4836 wrote to memory of 4544 4836 #$AItslip1546.exe RegSvcs.exe PID 4836 wrote to memory of 4544 4836 #$AItslip1546.exe RegSvcs.exe PID 4836 wrote to memory of 4544 4836 #$AItslip1546.exe RegSvcs.exe PID 4836 wrote to memory of 4544 4836 #$AItslip1546.exe RegSvcs.exe PID 4836 wrote to memory of 4544 4836 #$AItslip1546.exe RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\#$AItslip1546.exe"C:\Users\Admin\AppData\Local\Temp\#$AItslip1546.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4836 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\#$AItslip1546.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4788
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\XAeqjjZDwIfd.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4628
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XAeqjjZDwIfd" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAAF5.tmp"2⤵
- Creates scheduled task(s)
PID:3892
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4544
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD53d086a433708053f9bf9523e1d87a4e8
SHA1b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA2566f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
SHA512931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
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Filesize
18KB
MD5754215642ec4a1f956a47a0a5e136d11
SHA15bc96c1432266276089d5490dd653dd6ae5afb1c
SHA256100c68d229d38703ac20b50567155a0824002825d64d9ac463365d79c4378b24
SHA512d7f3a6e71aeba6481a246591838e9f8c3ffbd02fe905ad34df6528a14e2e2b204922dcbe9664cd0acbde6b72dd016cc5ac04a66fb1ee4b271fccbc2cff6f73c7
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD522455497f98f563185088e4abf5c7976
SHA1b3e5738ca2ce950cedd8bb1b1a733b1165b1b970
SHA2560877f433490ef2b848cc7907ea93478272e959b6fc6a6b313468fb7ea68655e8
SHA51242c06ae40efa40affe7347d06e6c21eca5410cb8b6102a22c4b510a6b83d9a47bae846258f4bdee9611eabc1d8df90d04a458e7f167cf9b18ffe3b09402e956d