Analysis
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max time kernel
143s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20231127-en -
resource tags
arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system -
submitted
05-12-2023 17:25
Static task
static1
Behavioral task
behavioral1
Sample
Drawing.exe
Resource
win7-20231130-en
Behavioral task
behavioral2
Sample
Drawing.exe
Resource
win10v2004-20231127-en
General
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Target
Drawing.exe
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Size
634KB
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MD5
516b4e94538b0696b4d1c29651129507
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SHA1
cf83ed10338ea104b84f918609aee66173ff16b5
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SHA256
c73ae5c0ed525b9eeb053157d5d4addbcd933991165a1beefce9ec9f7271acac
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SHA512
4e5118dab7b04e5d59a80c42f55cb4f92e4604ed3083ef05b03a7ba548e82490ccbebd4465e6b2c021e4356e55aeea250f2922b5b50b772030499a0605a49133
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SSDEEP
12288:945+po2/sTE5qgk7ek/FYJXcq/PlG1jqb6qIY/:o+pJxcek/wVP4IWLg
Malware Config
Extracted
Protocol: smtp- Host:
mail.perfectasmplegas.de - Port:
587 - Username:
[email protected] - Password:
Ifeanyi1987@
Extracted
agenttesla
Protocol: smtp- Host:
mail.perfectasmplegas.de - Port:
587 - Username:
[email protected] - Password:
Ifeanyi1987@ - 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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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
Drawing.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2037190880-819243489-950462038-1000\Control Panel\International\Geo\Nation Drawing.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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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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Suspicious use of SetThreadContext 1 IoCs
Processes:
Drawing.exedescription pid process target process PID 2248 set thread context of 224 2248 Drawing.exe Drawing.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 9 IoCs
Processes:
Drawing.exepowershell.exeDrawing.exepid process 2248 Drawing.exe 2248 Drawing.exe 2248 Drawing.exe 2248 Drawing.exe 4612 powershell.exe 224 Drawing.exe 224 Drawing.exe 224 Drawing.exe 4612 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
Drawing.exepowershell.exeDrawing.exedescription pid process Token: SeDebugPrivilege 2248 Drawing.exe Token: SeDebugPrivilege 4612 powershell.exe Token: SeDebugPrivilege 224 Drawing.exe -
Suspicious use of WriteProcessMemory 20 IoCs
Processes:
Drawing.exedescription pid process target process PID 2248 wrote to memory of 4612 2248 Drawing.exe powershell.exe PID 2248 wrote to memory of 4612 2248 Drawing.exe powershell.exe PID 2248 wrote to memory of 4612 2248 Drawing.exe powershell.exe PID 2248 wrote to memory of 4444 2248 Drawing.exe schtasks.exe PID 2248 wrote to memory of 4444 2248 Drawing.exe schtasks.exe PID 2248 wrote to memory of 4444 2248 Drawing.exe schtasks.exe PID 2248 wrote to memory of 3364 2248 Drawing.exe Drawing.exe PID 2248 wrote to memory of 3364 2248 Drawing.exe Drawing.exe PID 2248 wrote to memory of 3364 2248 Drawing.exe Drawing.exe PID 2248 wrote to memory of 4000 2248 Drawing.exe Drawing.exe PID 2248 wrote to memory of 4000 2248 Drawing.exe Drawing.exe PID 2248 wrote to memory of 4000 2248 Drawing.exe Drawing.exe PID 2248 wrote to memory of 224 2248 Drawing.exe Drawing.exe PID 2248 wrote to memory of 224 2248 Drawing.exe Drawing.exe PID 2248 wrote to memory of 224 2248 Drawing.exe Drawing.exe PID 2248 wrote to memory of 224 2248 Drawing.exe Drawing.exe PID 2248 wrote to memory of 224 2248 Drawing.exe Drawing.exe PID 2248 wrote to memory of 224 2248 Drawing.exe Drawing.exe PID 2248 wrote to memory of 224 2248 Drawing.exe Drawing.exe PID 2248 wrote to memory of 224 2248 Drawing.exe Drawing.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Drawing.exe"C:\Users\Admin\AppData\Local\Temp\Drawing.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2248 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\vHhbDot.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4612 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vHhbDot" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC081.tmp"2⤵
- Creates scheduled task(s)
PID:4444 -
C:\Users\Admin\AppData\Local\Temp\Drawing.exe"C:\Users\Admin\AppData\Local\Temp\Drawing.exe"2⤵PID:3364
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C:\Users\Admin\AppData\Local\Temp\Drawing.exe"C:\Users\Admin\AppData\Local\Temp\Drawing.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:224 -
C:\Users\Admin\AppData\Local\Temp\Drawing.exe"C:\Users\Admin\AppData\Local\Temp\Drawing.exe"2⤵PID:4000
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
1KB
MD50a1c93ecfa3d6714f4fc9e11b1308321
SHA16f7a431bd44664fa4092e4c88c02c07fb85a7059
SHA2562f65b2697e408f9908f72ea0192a4a8f58a8afb99640f657f52521569bf117f8
SHA5120172f7e951c9042fe3879b471596b22f15bf24732d36bd934bd345887ff8b0f393b3b43bf84a73964733b02b95da8f164de251f25b42d0230e3ce56c9c1ef477