Analysis
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max time kernel
143s -
max time network
150s -
platform
windows7_x64 -
resource
win7 -
submitted
07-07-2020 06:27
Static task
static1
Behavioral task
behavioral1
Sample
4d1058703a7baefeee2f1bf88e3829a8.exe
Resource
win7
Behavioral task
behavioral2
Sample
4d1058703a7baefeee2f1bf88e3829a8.exe
Resource
win10v200430
General
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Target
4d1058703a7baefeee2f1bf88e3829a8.exe
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Size
659KB
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MD5
4d1058703a7baefeee2f1bf88e3829a8
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SHA1
c94d3406a30980abb3cd47aec0a4282f686bf6ef
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SHA256
2b677efbb2d332ea0a8fe453281fa6013bf223e7897d8419f98b13e5fbf48615
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SHA512
4e7500edf703b513c947a518f8af2058a578099bacaf69010ce444da8c3cc7bc34342b3ddbbed4be7ca6a23a0ee66c3b2d835f9c093ad5d1724f513b0962ada7
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.yandex.com - Port:
587 - Username:
[email protected] - Password:
goodwork11
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/1600-5-0x0000000000446F5E-mapping.dmp family_agenttesla behavioral1/memory/1600-7-0x0000000000090000-0x00000000000DC000-memory.dmp family_agenttesla behavioral1/memory/1600-8-0x0000000000090000-0x00000000000DC000-memory.dmp family_agenttesla -
Executes dropped EXE 1 IoCs
Processes:
InstallUtil.exepid process 1600 InstallUtil.exe -
Loads dropped DLL 1 IoCs
Processes:
4d1058703a7baefeee2f1bf88e3829a8.exepid process 608 4d1058703a7baefeee2f1bf88e3829a8.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
Processes:
4d1058703a7baefeee2f1bf88e3829a8.exedescription pid process target process PID 608 set thread context of 1600 608 4d1058703a7baefeee2f1bf88e3829a8.exe InstallUtil.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
4d1058703a7baefeee2f1bf88e3829a8.exeInstallUtil.exepid process 608 4d1058703a7baefeee2f1bf88e3829a8.exe 608 4d1058703a7baefeee2f1bf88e3829a8.exe 608 4d1058703a7baefeee2f1bf88e3829a8.exe 1600 InstallUtil.exe 1600 InstallUtil.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
4d1058703a7baefeee2f1bf88e3829a8.exeInstallUtil.exedescription pid process Token: SeDebugPrivilege 608 4d1058703a7baefeee2f1bf88e3829a8.exe Token: SeDebugPrivilege 1600 InstallUtil.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
4d1058703a7baefeee2f1bf88e3829a8.exedescription pid process target process PID 608 wrote to memory of 1600 608 4d1058703a7baefeee2f1bf88e3829a8.exe InstallUtil.exe PID 608 wrote to memory of 1600 608 4d1058703a7baefeee2f1bf88e3829a8.exe InstallUtil.exe PID 608 wrote to memory of 1600 608 4d1058703a7baefeee2f1bf88e3829a8.exe InstallUtil.exe PID 608 wrote to memory of 1600 608 4d1058703a7baefeee2f1bf88e3829a8.exe InstallUtil.exe PID 608 wrote to memory of 1600 608 4d1058703a7baefeee2f1bf88e3829a8.exe InstallUtil.exe PID 608 wrote to memory of 1600 608 4d1058703a7baefeee2f1bf88e3829a8.exe InstallUtil.exe PID 608 wrote to memory of 1600 608 4d1058703a7baefeee2f1bf88e3829a8.exe InstallUtil.exe PID 608 wrote to memory of 1600 608 4d1058703a7baefeee2f1bf88e3829a8.exe InstallUtil.exe PID 608 wrote to memory of 1600 608 4d1058703a7baefeee2f1bf88e3829a8.exe InstallUtil.exe PID 608 wrote to memory of 1600 608 4d1058703a7baefeee2f1bf88e3829a8.exe InstallUtil.exe PID 608 wrote to memory of 1600 608 4d1058703a7baefeee2f1bf88e3829a8.exe InstallUtil.exe PID 608 wrote to memory of 1600 608 4d1058703a7baefeee2f1bf88e3829a8.exe InstallUtil.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\4d1058703a7baefeee2f1bf88e3829a8.exe"C:\Users\Admin\AppData\Local\Temp\4d1058703a7baefeee2f1bf88e3829a8.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:608 -
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1600
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
91c9ae9c9a17a9db5e08b120e668c74c
SHA150770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA256e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
SHA512ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
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MD5
91c9ae9c9a17a9db5e08b120e668c74c
SHA150770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA256e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
SHA512ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
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MD5
91c9ae9c9a17a9db5e08b120e668c74c
SHA150770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA256e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
SHA512ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e