Analysis
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max time kernel
144s -
max time network
118s -
platform
windows7_x64 -
resource
win7-en-20211014 -
submitted
01-11-2021 11:40
Static task
static1
Behavioral task
behavioral1
Sample
Sin factura 2021 NOV-INV IX 08945.exe
Resource
win7-en-20211014
Behavioral task
behavioral2
Sample
Sin factura 2021 NOV-INV IX 08945.exe
Resource
win10-en-20210920
General
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Target
Sin factura 2021 NOV-INV IX 08945.exe
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Size
757KB
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MD5
0e674bdf43144fea1eeb1eed1013c59a
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SHA1
2ee2139e2fb67b4a27e4074c21a3db12d0c665a8
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SHA256
c2f38ab387af8786ebc37f336dd923f935098dea3821e2ef8a9e2308c3ed47e7
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SHA512
5438664d71cab3426851bf82a1a0d68900fbe556ee1b065c2f7da522fdd3c9619a922f14a73bc245f16442ca76fd25bf07255d76ddd0870b6246b8f06cf2e41f
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.acpl.net.in - Port:
587 - Username:
[email protected] - Password:
Hi~M)?*G~-Zd
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 5 IoCs
Processes:
resource yara_rule behavioral1/memory/1904-65-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/1904-66-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/1904-67-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/1904-68-0x00000000004375BE-mapping.dmp family_agenttesla behavioral1/memory/1904-71-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla -
Executes dropped EXE 1 IoCs
Processes:
InstallUtil.exepid process 1904 InstallUtil.exe -
Loads dropped DLL 1 IoCs
Processes:
Sin factura 2021 NOV-INV IX 08945.exepid process 268 Sin factura 2021 NOV-INV IX 08945.exe -
Obfuscated with Agile.Net obfuscator 1 IoCs
Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.
Processes:
resource yara_rule behavioral1/memory/268-58-0x0000000000790000-0x00000000007B1000-memory.dmp agile_net -
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:
InstallUtil.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Sin factura 2021 NOV-INV IX 08945.exedescription pid process target process PID 268 set thread context of 1904 268 Sin factura 2021 NOV-INV IX 08945.exe InstallUtil.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
Sin factura 2021 NOV-INV IX 08945.exeInstallUtil.exepid process 268 Sin factura 2021 NOV-INV IX 08945.exe 268 Sin factura 2021 NOV-INV IX 08945.exe 1904 InstallUtil.exe 1904 InstallUtil.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
Sin factura 2021 NOV-INV IX 08945.exeInstallUtil.exedescription pid process Token: SeDebugPrivilege 268 Sin factura 2021 NOV-INV IX 08945.exe Token: SeDebugPrivilege 1904 InstallUtil.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
Sin factura 2021 NOV-INV IX 08945.exedescription pid process target process PID 268 wrote to memory of 1904 268 Sin factura 2021 NOV-INV IX 08945.exe InstallUtil.exe PID 268 wrote to memory of 1904 268 Sin factura 2021 NOV-INV IX 08945.exe InstallUtil.exe PID 268 wrote to memory of 1904 268 Sin factura 2021 NOV-INV IX 08945.exe InstallUtil.exe PID 268 wrote to memory of 1904 268 Sin factura 2021 NOV-INV IX 08945.exe InstallUtil.exe PID 268 wrote to memory of 1904 268 Sin factura 2021 NOV-INV IX 08945.exe InstallUtil.exe PID 268 wrote to memory of 1904 268 Sin factura 2021 NOV-INV IX 08945.exe InstallUtil.exe PID 268 wrote to memory of 1904 268 Sin factura 2021 NOV-INV IX 08945.exe InstallUtil.exe PID 268 wrote to memory of 1904 268 Sin factura 2021 NOV-INV IX 08945.exe InstallUtil.exe PID 268 wrote to memory of 1904 268 Sin factura 2021 NOV-INV IX 08945.exe InstallUtil.exe PID 268 wrote to memory of 1904 268 Sin factura 2021 NOV-INV IX 08945.exe InstallUtil.exe PID 268 wrote to memory of 1904 268 Sin factura 2021 NOV-INV IX 08945.exe InstallUtil.exe PID 268 wrote to memory of 1904 268 Sin factura 2021 NOV-INV IX 08945.exe InstallUtil.exe -
outlook_office_path 1 IoCs
Processes:
InstallUtil.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe -
outlook_win_path 1 IoCs
Processes:
InstallUtil.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Sin factura 2021 NOV-INV IX 08945.exe"C:\Users\Admin\AppData\Local\Temp\Sin factura 2021 NOV-INV IX 08945.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:268 -
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"2⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1904
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\InstallUtil.exeMD5
91c9ae9c9a17a9db5e08b120e668c74c
SHA150770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA256e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
SHA512ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
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C:\Users\Admin\AppData\Local\Temp\InstallUtil.exeMD5
91c9ae9c9a17a9db5e08b120e668c74c
SHA150770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA256e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
SHA512ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
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\Users\Admin\AppData\Local\Temp\InstallUtil.exeMD5
91c9ae9c9a17a9db5e08b120e668c74c
SHA150770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA256e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
SHA512ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
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memory/268-57-0x0000000001100000-0x0000000001101000-memory.dmpFilesize
4KB
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memory/268-58-0x0000000000790000-0x00000000007B1000-memory.dmpFilesize
132KB
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memory/268-59-0x0000000001101000-0x0000000001102000-memory.dmpFilesize
4KB
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memory/268-60-0x00000000009F0000-0x00000000009FB000-memory.dmpFilesize
44KB
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memory/268-61-0x0000000000BA0000-0x0000000000BA1000-memory.dmpFilesize
4KB
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memory/268-55-0x00000000011B0000-0x00000000011B1000-memory.dmpFilesize
4KB
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memory/1904-64-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1904-66-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1904-67-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1904-68-0x00000000004375BE-mapping.dmp
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memory/1904-65-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1904-63-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1904-71-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1904-73-0x0000000000340000-0x0000000000341000-memory.dmpFilesize
4KB
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memory/1904-74-0x0000000000341000-0x0000000000342000-memory.dmpFilesize
4KB