Analysis
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max time kernel
165s -
max time network
174s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
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submitted
11-10-2023 12:38
General
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Target
Justificante_Pago_Certificado_Corriente_Pago.exe
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Size
615KB
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MD5
ace4fe25d9a311eb76341e8852a27471
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SHA1
5b1218f378fee6fd959f78b11849fb081204bce6
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SHA256
528aceae347b69455dfb59afd54770e03a3ff27a7c3b38f0cbe79ffb4b317ffa
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SHA512
8d404f5b9f27bd57f81c6c3f11d1b635c1d6ef9aba0d879e4becfbdf21110330ef45a572dbce5d44def31fff39e03fa3b205e2af7523d7e7f54759ef5e5b8297
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SSDEEP
12288:HT725l3XhcHyUZvKD+BHhE1bVhW2UZlre/TYWh/gOw:GD3RcpZQ+ByLhWJxsTYOY
Malware Config
Extracted
Protocol: smtp- Host:
mail.tecnosilos.com.py - Port:
587 - Username:
[email protected] - Password:
;.%^d08lQM@D
Extracted
agenttesla
Protocol: smtp- Host:
mail.tecnosilos.com.py - Port:
587 - Username:
[email protected] - Password:
;.%^d08lQM@D - 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.
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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
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Suspicious use of SetThreadContext 1 IoCs
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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
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Suspicious use of AdjustPrivilegeToken 4 IoCs
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Suspicious use of WriteProcessMemory 17 IoCs
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outlook_office_path 1 IoCs
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outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Justificante_Pago_Certificado_Corriente_Pago.exe"C:\Users\Admin\AppData\Local\Temp\Justificante_Pago_Certificado_Corriente_Pago.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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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\Local\Temp\Justificante_Pago_Certificado_Corriente_Pago.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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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\dWwYUuIKtfjK.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dWwYUuIKtfjK" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB4F3.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Justificante_Pago_Certificado_Corriente_Pago.exe"C:\Users\Admin\AppData\Local\Temp\Justificante_Pago_Certificado_Corriente_Pago.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
18KB
MD50ae07a9ed21129bb0ed0a438c41d1d46
SHA15253ea6e2ae07672cee16dbecaa41fbf89777926
SHA256b5754b173984fe194b76b9bc685e9a773cfcd091750f6e2d1649145209f30d6b
SHA512feae7bc6fb6e53562931010f5520d33d554f65c47c9c69b1a98d33f127bc1e21d5b47e788ca98491298682eda0ca79ee5507e52efc5f6379b9207c4cae0a4a4c
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD50198a0260a0ddb1b3130767561c6dc39
SHA106cc5590a5da9c89a2fdd8ff758c58c59a2ea6ec
SHA2563e37d6c86dd9eccea8b907cefdf9faf4cf698d4b3af59529034ac27101e35387
SHA512665aa25ad194261954688dcd644bfa8bbf071dc27a41c7dbcfaed1f6ffbfb09ef70650d5358a2c7f051155b7e7e814ba3e5e7f0d049134f40f32aa4801462da0
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Filesize
40KB
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Filesize
304KB
-
Filesize
56KB
-
Filesize
68KB
-
Filesize
600KB
-
Filesize
64KB
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Filesize
120KB
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Filesize
7.7MB
-
Filesize
64KB
-
Filesize
200KB
-
Filesize
304KB
-
Filesize
7.7MB
-
Filesize
7.7MB
-
Filesize
64KB
-
Filesize
64KB
-
Filesize
7.7MB
-
Filesize
40KB
-
Filesize
7.7MB
-
Filesize
5.6MB
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Filesize
584KB
-
Filesize
64KB
-
Filesize
64KB
-
Filesize
7.7MB
-
Filesize
64KB
-
Filesize
48KB
-
Filesize
504KB
-
Filesize
632KB
-
Filesize
624KB
-
Filesize
64KB
-
Filesize
64KB
-
Filesize
64KB
-
Filesize
7.7MB
-
Filesize
120KB
-
Filesize
136KB
-
Filesize
64KB
-
Filesize
7.7MB
-
Filesize
304KB
-
Filesize
104KB
-
Filesize
216KB
-
Filesize
64KB
-
Filesize
652KB
-
Filesize
3.3MB
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Filesize
7.7MB
-
Filesize
64KB
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Filesize
6.2MB
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Filesize
408KB
-
Filesize
408KB
-
Filesize
80KB
-
Filesize
104KB
-
Filesize
32KB
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Filesize
6.5MB
-
Filesize
64KB
-
Filesize
320KB
-
Filesize
272KB
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Filesize
7.7MB
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Filesize
7.7MB
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Filesize
64KB