Analysis
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max time kernel
97s -
max time network
13s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
27-07-2021 13:07
Static task
static1
Behavioral task
behavioral1
Sample
TT COPY.exe
Resource
win7v20210410
Behavioral task
behavioral2
Sample
TT COPY.exe
Resource
win10v20210408
General
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Target
TT COPY.exe
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Size
988KB
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MD5
197e571bfcf3f22816e245fef4f86b4f
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SHA1
60df9b31aeb301c4c480da58f75be14d775cb604
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SHA256
fc22aaa35e5504461dd5ace02d041f7715bc25acf329d2070e02e854b54d4de0
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SHA512
f7bc869cae343ee6dc5230d54eb6e775490733df911e36e3427dda88b75d240131ff8c1bd0e23d6f93c28e4691566cc90a2c092111f9d38b241365d3f483558a
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
paola.micheli@copangroup.xyz - Password:
gibson.1990
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/1764-65-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/1764-66-0x000000000043760E-mapping.dmp family_agenttesla behavioral1/memory/1764-67-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla -
Drops file in Drivers directory 1 IoCs
Processes:
TT COPY.exedescription ioc process File opened for modification C:\Windows\system32\drivers\etc\hosts TT COPY.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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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
TT COPY.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\NXLun = "C:\\Users\\Admin\\AppData\\Roaming\\NXLun\\NXLun.exe" TT COPY.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
TT COPY.exedescription pid process target process PID 452 set thread context of 1764 452 TT COPY.exe TT COPY.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
TT COPY.exepid process 1764 TT COPY.exe 1764 TT COPY.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
TT COPY.exedescription pid process Token: SeDebugPrivilege 1764 TT COPY.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
TT COPY.exedescription pid process target process PID 452 wrote to memory of 1764 452 TT COPY.exe TT COPY.exe PID 452 wrote to memory of 1764 452 TT COPY.exe TT COPY.exe PID 452 wrote to memory of 1764 452 TT COPY.exe TT COPY.exe PID 452 wrote to memory of 1764 452 TT COPY.exe TT COPY.exe PID 452 wrote to memory of 1764 452 TT COPY.exe TT COPY.exe PID 452 wrote to memory of 1764 452 TT COPY.exe TT COPY.exe PID 452 wrote to memory of 1764 452 TT COPY.exe TT COPY.exe PID 452 wrote to memory of 1764 452 TT COPY.exe TT COPY.exe PID 452 wrote to memory of 1764 452 TT COPY.exe TT COPY.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\TT COPY.exe"C:\Users\Admin\AppData\Local\Temp\TT COPY.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\TT COPY.exe"C:\Users\Admin\AppData\Local\Temp\TT COPY.exe"2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/452-60-0x00000000013E0000-0x00000000013E1000-memory.dmpFilesize
4KB
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memory/452-62-0x0000000004A70000-0x0000000004A71000-memory.dmpFilesize
4KB
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memory/452-63-0x0000000000CE0000-0x0000000000D48000-memory.dmpFilesize
416KB
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memory/452-64-0x0000000000470000-0x000000000047F000-memory.dmpFilesize
60KB
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memory/1764-65-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1764-66-0x000000000043760E-mapping.dmp
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memory/1764-67-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1764-69-0x0000000004C70000-0x0000000004C71000-memory.dmpFilesize
4KB
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memory/1764-70-0x0000000004C71000-0x0000000004C72000-memory.dmpFilesize
4KB