Analysis
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max time kernel
150s -
max time network
119s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
26-04-2021 05:45
Static task
static1
Behavioral task
behavioral1
Sample
Quotation#73280126721_Oriental_Fastech_Manufacturings.exe
Resource
win7v20210410
Behavioral task
behavioral2
Sample
Quotation#73280126721_Oriental_Fastech_Manufacturings.exe
Resource
win10v20210408
General
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Target
Quotation#73280126721_Oriental_Fastech_Manufacturings.exe
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Size
799KB
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MD5
f62392434dafe03001593e0dc43bfaae
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SHA1
d827ef768e8d470c2ced5af28aa3892e9969c9cf
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SHA256
5ff8126fb4025c8587191a776a7d505f1bcc825f87a8e21266f55d5ff3f2cccb
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SHA512
0d39eddb1ff2c14e8358f6a48d410915b220bedb1976cf7f3ad592859388f5b228adf3d60d36ebfae04364bb6cb83191f7f879d3edf22fde87067d4113e39529
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.privateemail.com - Port:
587 - Username:
sammorris@askoblue.com - Password:
P)RTDOg8
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 3 IoCs
Processes:
resource yara_rule behavioral1/memory/632-82-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/632-83-0x000000000043762E-mapping.dmp family_agenttesla behavioral1/memory/632-85-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla -
Executes dropped EXE 2 IoCs
Processes:
explorers.exeInstallUtil.exepid process 1120 explorers.exe 632 InstallUtil.exe -
Loads dropped DLL 2 IoCs
Processes:
Quotation#73280126721_Oriental_Fastech_Manufacturings.exeexplorers.exepid process 1092 Quotation#73280126721_Oriental_Fastech_Manufacturings.exe 1120 explorers.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/1092-64-0x0000000000BB0000-0x0000000000BD1000-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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Adds Run key to start application 2 TTPs 2 IoCs
Processes:
reg.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run reg.exe Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\explorers = "C:\\Users\\Admin\\AppData\\Roaming\\explorers.exe" reg.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
explorers.exedescription pid process target process PID 1120 set thread context of 632 1120 explorers.exe InstallUtil.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 9 IoCs
Processes:
Quotation#73280126721_Oriental_Fastech_Manufacturings.exeexplorers.exeInstallUtil.exepid process 1092 Quotation#73280126721_Oriental_Fastech_Manufacturings.exe 1092 Quotation#73280126721_Oriental_Fastech_Manufacturings.exe 1092 Quotation#73280126721_Oriental_Fastech_Manufacturings.exe 1092 Quotation#73280126721_Oriental_Fastech_Manufacturings.exe 1092 Quotation#73280126721_Oriental_Fastech_Manufacturings.exe 1120 explorers.exe 1120 explorers.exe 632 InstallUtil.exe 632 InstallUtil.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
Quotation#73280126721_Oriental_Fastech_Manufacturings.exeexplorers.exeInstallUtil.exedescription pid process Token: SeDebugPrivilege 1092 Quotation#73280126721_Oriental_Fastech_Manufacturings.exe Token: SeDebugPrivilege 1120 explorers.exe Token: SeDebugPrivilege 632 InstallUtil.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
InstallUtil.exepid process 632 InstallUtil.exe -
Suspicious use of WriteProcessMemory 24 IoCs
Processes:
Quotation#73280126721_Oriental_Fastech_Manufacturings.execmd.exeexplorers.exedescription pid process target process PID 1092 wrote to memory of 764 1092 Quotation#73280126721_Oriental_Fastech_Manufacturings.exe cmd.exe PID 1092 wrote to memory of 764 1092 Quotation#73280126721_Oriental_Fastech_Manufacturings.exe cmd.exe PID 1092 wrote to memory of 764 1092 Quotation#73280126721_Oriental_Fastech_Manufacturings.exe cmd.exe PID 1092 wrote to memory of 764 1092 Quotation#73280126721_Oriental_Fastech_Manufacturings.exe cmd.exe PID 764 wrote to memory of 524 764 cmd.exe reg.exe PID 764 wrote to memory of 524 764 cmd.exe reg.exe PID 764 wrote to memory of 524 764 cmd.exe reg.exe PID 764 wrote to memory of 524 764 cmd.exe reg.exe PID 1092 wrote to memory of 1120 1092 Quotation#73280126721_Oriental_Fastech_Manufacturings.exe explorers.exe PID 1092 wrote to memory of 1120 1092 Quotation#73280126721_Oriental_Fastech_Manufacturings.exe explorers.exe PID 1092 wrote to memory of 1120 1092 Quotation#73280126721_Oriental_Fastech_Manufacturings.exe explorers.exe PID 1092 wrote to memory of 1120 1092 Quotation#73280126721_Oriental_Fastech_Manufacturings.exe explorers.exe PID 1120 wrote to memory of 632 1120 explorers.exe InstallUtil.exe PID 1120 wrote to memory of 632 1120 explorers.exe InstallUtil.exe PID 1120 wrote to memory of 632 1120 explorers.exe InstallUtil.exe PID 1120 wrote to memory of 632 1120 explorers.exe InstallUtil.exe PID 1120 wrote to memory of 632 1120 explorers.exe InstallUtil.exe PID 1120 wrote to memory of 632 1120 explorers.exe InstallUtil.exe PID 1120 wrote to memory of 632 1120 explorers.exe InstallUtil.exe PID 1120 wrote to memory of 632 1120 explorers.exe InstallUtil.exe PID 1120 wrote to memory of 632 1120 explorers.exe InstallUtil.exe PID 1120 wrote to memory of 632 1120 explorers.exe InstallUtil.exe PID 1120 wrote to memory of 632 1120 explorers.exe InstallUtil.exe PID 1120 wrote to memory of 632 1120 explorers.exe InstallUtil.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Quotation#73280126721_Oriental_Fastech_Manufacturings.exe"C:\Users\Admin\AppData\Local\Temp\Quotation#73280126721_Oriental_Fastech_Manufacturings.exe"1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "explorers" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\explorers.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\reg.exeREG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "explorers" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\explorers.exe"3⤵
- Adds Run key to start application
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C:\Users\Admin\AppData\Roaming\explorers.exe"C:\Users\Admin\AppData\Roaming\explorers.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK 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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C:\Users\Admin\AppData\Roaming\explorers.exeMD5
f62392434dafe03001593e0dc43bfaae
SHA1d827ef768e8d470c2ced5af28aa3892e9969c9cf
SHA2565ff8126fb4025c8587191a776a7d505f1bcc825f87a8e21266f55d5ff3f2cccb
SHA5120d39eddb1ff2c14e8358f6a48d410915b220bedb1976cf7f3ad592859388f5b228adf3d60d36ebfae04364bb6cb83191f7f879d3edf22fde87067d4113e39529
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C:\Users\Admin\AppData\Roaming\explorers.exeMD5
f62392434dafe03001593e0dc43bfaae
SHA1d827ef768e8d470c2ced5af28aa3892e9969c9cf
SHA2565ff8126fb4025c8587191a776a7d505f1bcc825f87a8e21266f55d5ff3f2cccb
SHA5120d39eddb1ff2c14e8358f6a48d410915b220bedb1976cf7f3ad592859388f5b228adf3d60d36ebfae04364bb6cb83191f7f879d3edf22fde87067d4113e39529
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\Users\Admin\AppData\Local\Temp\InstallUtil.exeMD5
91c9ae9c9a17a9db5e08b120e668c74c
SHA150770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA256e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
SHA512ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
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\Users\Admin\AppData\Roaming\explorers.exeMD5
f62392434dafe03001593e0dc43bfaae
SHA1d827ef768e8d470c2ced5af28aa3892e9969c9cf
SHA2565ff8126fb4025c8587191a776a7d505f1bcc825f87a8e21266f55d5ff3f2cccb
SHA5120d39eddb1ff2c14e8358f6a48d410915b220bedb1976cf7f3ad592859388f5b228adf3d60d36ebfae04364bb6cb83191f7f879d3edf22fde87067d4113e39529
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memory/524-67-0x0000000000000000-mapping.dmp
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memory/632-82-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/632-88-0x0000000001EF1000-0x0000000001EF2000-memory.dmpFilesize
4KB
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memory/632-87-0x0000000001EF0000-0x0000000001EF1000-memory.dmpFilesize
4KB
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memory/632-85-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/632-83-0x000000000043762E-mapping.dmp
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memory/764-66-0x0000000000000000-mapping.dmp
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memory/1092-62-0x0000000000E20000-0x0000000000E21000-memory.dmpFilesize
4KB
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memory/1092-65-0x0000000000E21000-0x0000000000E22000-memory.dmpFilesize
4KB
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memory/1092-64-0x0000000000BB0000-0x0000000000BD1000-memory.dmpFilesize
132KB
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memory/1092-60-0x0000000000FE0000-0x0000000000FE1000-memory.dmpFilesize
4KB
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memory/1120-79-0x0000000000B40000-0x0000000000B41000-memory.dmpFilesize
4KB
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memory/1120-78-0x0000000000B10000-0x0000000000B1B000-memory.dmpFilesize
44KB
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memory/1120-77-0x0000000004EF1000-0x0000000004EF2000-memory.dmpFilesize
4KB
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memory/1120-69-0x0000000000000000-mapping.dmp
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memory/1120-74-0x0000000004EF0000-0x0000000004EF1000-memory.dmpFilesize
4KB
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memory/1120-72-0x0000000000D80000-0x0000000000D81000-memory.dmpFilesize
4KB