Analysis
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max time kernel
119s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
15/05/2024, 10:36
Static task
static1
Behavioral task
behavioral1
Sample
55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe
Resource
win7-20240221-en
General
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Target
55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe
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Size
712KB
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MD5
abbe4be24a1416c5bdff6bc59d828c4a
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SHA1
a58f8980db33975bc7b1aad3e358b2432602da5b
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SHA256
55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f
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SHA512
9299290637b7dc75709de2e95b1d6075b305a768e7a256745042b835ff864e64512ace137bef6ebabef5c5d3c7facfd48987665bcd4a992777368a4f9e55f80d
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SSDEEP
12288:0DJ2dkW1L2Gx75qpsc11RtrZXVIrJuXwGEPTtSykjsJzw/SH:0YqWQGx1isczrZXVIoXwGEPTtSyKsbH
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
[email protected] - Password:
dKjVwpK4 dKjVwpK4 dKjVwpK4 - 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.
pid Process 2660 powershell.exe 296 powershell.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
description pid Process procid_target PID 2932 set thread context of 2024 2932 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 34 -
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.
pid Process 2728 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2932 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 2932 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 2024 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 2024 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 2660 powershell.exe 296 powershell.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2932 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe Token: SeDebugPrivilege 2024 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe Token: SeDebugPrivilege 296 powershell.exe Token: SeDebugPrivilege 2660 powershell.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 2932 wrote to memory of 296 2932 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 28 PID 2932 wrote to memory of 296 2932 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 28 PID 2932 wrote to memory of 296 2932 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 28 PID 2932 wrote to memory of 296 2932 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 28 PID 2932 wrote to memory of 2660 2932 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 30 PID 2932 wrote to memory of 2660 2932 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 30 PID 2932 wrote to memory of 2660 2932 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 30 PID 2932 wrote to memory of 2660 2932 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 30 PID 2932 wrote to memory of 2728 2932 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 31 PID 2932 wrote to memory of 2728 2932 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 31 PID 2932 wrote to memory of 2728 2932 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 31 PID 2932 wrote to memory of 2728 2932 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 31 PID 2932 wrote to memory of 2024 2932 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 34 PID 2932 wrote to memory of 2024 2932 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 34 PID 2932 wrote to memory of 2024 2932 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 34 PID 2932 wrote to memory of 2024 2932 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 34 PID 2932 wrote to memory of 2024 2932 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 34 PID 2932 wrote to memory of 2024 2932 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 34 PID 2932 wrote to memory of 2024 2932 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 34 PID 2932 wrote to memory of 2024 2932 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 34 PID 2932 wrote to memory of 2024 2932 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 34
Processes
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C:\Users\Admin\AppData\Local\Temp\55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe"C:\Users\Admin\AppData\Local\Temp\55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2932 -
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\55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:296
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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\isgjyvIx.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2660
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\isgjyvIx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3A71.tmp"2⤵
- Creates scheduled task(s)
PID:2728
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C:\Users\Admin\AppData\Local\Temp\55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe"C:\Users\Admin\AppData\Local\Temp\55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2024
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD5ed389962ae3e4b99bd023bccd88b239d
SHA1b7a88925d8bca29133a5d4556abea796d70a612e
SHA25649777157ad04bfb29ca21688f56d3e288cfaf047cb1d8e0a6094e4ad50b4838b
SHA5121dbb68a9a53a4d49adcb23e4105aaed64edb8ceb835da5791014ce8fc4bec3dca42f0375dd84dcfaabffad6f9e2a18df5aa7b02c1c53c4cc055214f5d88a62aa
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
Filesize7KB
MD529b35910405a9c15379d786092756924
SHA1d5abd3223592f3975eab8e3843a8ff836ea6773c
SHA25632a4e6e649c04d5c2ea7049768d5423adfc3bc6fd15289816be6e50ebbad47b1
SHA5122ea48f3a3f3514c397c44527f3dbc399bd761420acdbe131042d1f9748175296247691c83e67107f6b0bd48aa9e6f36d98ec6129b4f2fab8a7033a44f0374c84