Analysis
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max time kernel
125s -
max time network
52s -
platform
windows10-2004_x64 -
resource
win10v2004-20231130-en -
resource tags
arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system -
submitted
05-12-2023 02:47
Static task
static1
Behavioral task
behavioral1
Sample
SWFT_794.exe
Resource
win7-20231025-en
Behavioral task
behavioral2
Sample
SWFT_794.exe
Resource
win10v2004-20231130-en
General
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Target
SWFT_794.exe
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Size
812KB
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MD5
a21e01d4c2ce154de0e9a89b63c8ec63
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SHA1
21f9ca2d21c8a1d021273f6149e4638cf4cc700b
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SHA256
17fde7224cda251d6be65b425428b449341d631737a269f77a8bceb4164b4512
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SHA512
55b06ba03ac549c3bd6690a33c33a003c671acbad5e0798d4065cd68d1b6dac10e5040722f564664ad3a92e22c021fd4072be21a6d21a8eb65616831d3c4eab4
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SSDEEP
24576:R34/up+pJxZJVKSo8l0WIFBdHGR9W/uq:R38PJxZD/l0FY6u
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.webdnes.cz - Port:
587 - Username:
[email protected] - Password:
knihakniha - 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:
SWFT_794.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-423100829-2271632622-1028104103-1000\Control Panel\International\Geo\Nation SWFT_794.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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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 8 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
SWFT_794.exedescription pid process target process PID 4980 set thread context of 3964 4980 SWFT_794.exe SWFT_794.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
SWFT_794.exepowershell.exepid process 3964 SWFT_794.exe 3964 SWFT_794.exe 556 powershell.exe 556 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
SWFT_794.exepowershell.exedescription pid process Token: SeDebugPrivilege 3964 SWFT_794.exe Token: SeDebugPrivilege 556 powershell.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
SWFT_794.exedescription pid process target process PID 4980 wrote to memory of 556 4980 SWFT_794.exe powershell.exe PID 4980 wrote to memory of 556 4980 SWFT_794.exe powershell.exe PID 4980 wrote to memory of 556 4980 SWFT_794.exe powershell.exe PID 4980 wrote to memory of 3964 4980 SWFT_794.exe SWFT_794.exe PID 4980 wrote to memory of 3964 4980 SWFT_794.exe SWFT_794.exe PID 4980 wrote to memory of 3964 4980 SWFT_794.exe SWFT_794.exe PID 4980 wrote to memory of 3964 4980 SWFT_794.exe SWFT_794.exe PID 4980 wrote to memory of 3964 4980 SWFT_794.exe SWFT_794.exe PID 4980 wrote to memory of 3964 4980 SWFT_794.exe SWFT_794.exe PID 4980 wrote to memory of 3964 4980 SWFT_794.exe SWFT_794.exe PID 4980 wrote to memory of 3964 4980 SWFT_794.exe SWFT_794.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\SWFT_794.exe"C:\Users\Admin\AppData\Local\Temp\SWFT_794.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4980 -
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\SWFT_794.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:556 -
C:\Users\Admin\AppData\Local\Temp\SWFT_794.exe"C:\Users\Admin\AppData\Local\Temp\SWFT_794.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3964
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82