Analysis
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max time kernel
121s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231130-en -
resource tags
arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system -
submitted
02-12-2023 02:01
Static task
static1
Behavioral task
behavioral1
Sample
SPECIFIC.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
SPECIFIC.exe
Resource
win10v2004-20231130-en
General
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Target
SPECIFIC.exe
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Size
784KB
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MD5
36c3e031bafb66e40a1291ea6fce0e72
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SHA1
f789f2e93c889ce67b272b83b8d0b5fb83a0dc04
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SHA256
eb6cc1987627340fcb7ba34ebad9174a770e28f43ae5b6eae6270f197d0a7e10
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SHA512
621a7a5c3ab1b0d298b329be2e0bbb6918e50d64578adc761572af880fd969cd5afc0c9dab3cce7b42c0a4a97be9984ce9af5c85e677e8932f83d107c70ddd89
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SSDEEP
12288:oNLIWyVyBY3/yW2r7gKw1lEOb969zpZAUsXoiMnf1NuxyvKXZazFr:oNjed3qDrMlEQQ9zdsUNuxIYZq
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.mailo.com - Port:
587 - Username:
[email protected] - Password:
Jesus234 - 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:
SPECIFIC.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\Control Panel\International\Geo\Nation SPECIFIC.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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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
SPECIFIC.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 SPECIFIC.exe Key opened \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 SPECIFIC.exe Key opened \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 SPECIFIC.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 20 api.ipify.org 21 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
SPECIFIC.exedescription pid process target process PID 1424 set thread context of 1756 1424 SPECIFIC.exe SPECIFIC.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 8 IoCs
Processes:
SPECIFIC.exepowershell.exepowershell.exeSPECIFIC.exepid process 1424 SPECIFIC.exe 4084 powershell.exe 4780 powershell.exe 1424 SPECIFIC.exe 1756 SPECIFIC.exe 1756 SPECIFIC.exe 4084 powershell.exe 4780 powershell.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
SPECIFIC.exepowershell.exepowershell.exeSPECIFIC.exedescription pid process Token: SeDebugPrivilege 1424 SPECIFIC.exe Token: SeDebugPrivilege 4084 powershell.exe Token: SeDebugPrivilege 4780 powershell.exe Token: SeDebugPrivilege 1756 SPECIFIC.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
SPECIFIC.exepid process 1756 SPECIFIC.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
SPECIFIC.exedescription pid process target process PID 1424 wrote to memory of 4084 1424 SPECIFIC.exe powershell.exe PID 1424 wrote to memory of 4084 1424 SPECIFIC.exe powershell.exe PID 1424 wrote to memory of 4084 1424 SPECIFIC.exe powershell.exe PID 1424 wrote to memory of 4780 1424 SPECIFIC.exe powershell.exe PID 1424 wrote to memory of 4780 1424 SPECIFIC.exe powershell.exe PID 1424 wrote to memory of 4780 1424 SPECIFIC.exe powershell.exe PID 1424 wrote to memory of 3448 1424 SPECIFIC.exe schtasks.exe PID 1424 wrote to memory of 3448 1424 SPECIFIC.exe schtasks.exe PID 1424 wrote to memory of 3448 1424 SPECIFIC.exe schtasks.exe PID 1424 wrote to memory of 1756 1424 SPECIFIC.exe SPECIFIC.exe PID 1424 wrote to memory of 1756 1424 SPECIFIC.exe SPECIFIC.exe PID 1424 wrote to memory of 1756 1424 SPECIFIC.exe SPECIFIC.exe PID 1424 wrote to memory of 1756 1424 SPECIFIC.exe SPECIFIC.exe PID 1424 wrote to memory of 1756 1424 SPECIFIC.exe SPECIFIC.exe PID 1424 wrote to memory of 1756 1424 SPECIFIC.exe SPECIFIC.exe PID 1424 wrote to memory of 1756 1424 SPECIFIC.exe SPECIFIC.exe PID 1424 wrote to memory of 1756 1424 SPECIFIC.exe SPECIFIC.exe -
outlook_office_path 1 IoCs
Processes:
SPECIFIC.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 SPECIFIC.exe -
outlook_win_path 1 IoCs
Processes:
SPECIFIC.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 SPECIFIC.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\SPECIFIC.exe"C:\Users\Admin\AppData\Local\Temp\SPECIFIC.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1424 -
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\SPECIFIC.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4084 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\eAeuidhLEQ.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4780 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\eAeuidhLEQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp855C.tmp"2⤵
- Creates scheduled task(s)
PID:3448 -
C:\Users\Admin\AppData\Local\Temp\SPECIFIC.exe"C:\Users\Admin\AppData\Local\Temp\SPECIFIC.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1756
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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Filesize
18KB
MD539ac09daf547b5a2ea165fca16fda493
SHA1f0152377eefed64acc2f9e0248a8f56c77690fb0
SHA256d0b3968390aee51ce5350310eb01a2caafecd3d4043307ceb3210278915404c1
SHA5121753f55f675c40d51601b2da4adb84e1fe363a543a151e4c0a3054aa6d78af528381cae15a7cacea45152bf1780a5f1fe7a8e18b9a32bc0d1d5f875e40838ac1
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD533584d137f531124b8a42094e0be555b
SHA15374e861b99cd65cdf294b2dd284226634373203
SHA2568831c5bb71611354fcd44d4514809d3cd14ed259fd9d2fb0e4cf7c2fe6907c4b
SHA512d76e25c58a75675bd2a0b214f4c08d7387cdbbe3a7655596f7ba9263498016effe33e0c8f767f3b32246c4f7bfbc89cc54c11aa7e674303d6305707c08327617