Analysis
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max time kernel
57s -
max time network
6s -
platform
windows7_x64 -
resource
win7 -
submitted
07-07-2020 05:33
Static task
static1
Behavioral task
behavioral1
Sample
ejima cripted.exe
Resource
win7
Behavioral task
behavioral2
Sample
ejima cripted.exe
Resource
win10v200430
General
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Target
ejima cripted.exe
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Size
461KB
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MD5
dfcc57d89ca61c9329bb0add87565fbb
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SHA1
86b63c28ba26f00ea34ce2e30c310b065767f854
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SHA256
0a13ba6b394ff6c4792edab2d8ee52651fa9ecfe014059b951d28d2f4383f101
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SHA512
5ce440dca5e9f2772971ac8da6bf81e04489f2683dcd62416d4ab56d653f5b6678a7fb8fc16b7ba7a890de51f45fc05dd2374fc12c084931bfa2da730c00f2a6
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.dogaseed.com - Port:
587 - Username:
[email protected] - Password:
Doga_2017*
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/1536-3-0x0000000000400000-0x00000000004B0000-memory.dmp family_agenttesla behavioral1/memory/1536-4-0x0000000001D10000-0x0000000001D62000-memory.dmp family_agenttesla behavioral1/memory/1536-6-0x00000000004B0000-0x00000000004FC000-memory.dmp family_agenttesla -
Processes:
resource yara_rule behavioral1/memory/1536-0-0x0000000000400000-0x00000000004B0000-memory.dmp upx behavioral1/memory/1536-2-0x0000000000400000-0x00000000004B0000-memory.dmp upx behavioral1/memory/1536-3-0x0000000000400000-0x00000000004B0000-memory.dmp upx -
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:
ejima cripted.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\CFMBUF = "C:\\Users\\Admin\\AppData\\Roaming\\CFMBUF\\CFMBUF.exe" ejima cripted.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
ejima cripted.exedescription pid process target process PID 1424 set thread context of 1536 1424 ejima cripted.exe ejima cripted.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
ejima cripted.exeejima cripted.exepid process 1424 ejima cripted.exe 1536 ejima cripted.exe 1536 ejima cripted.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
ejima cripted.exepid process 1424 ejima cripted.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
ejima cripted.exedescription pid process Token: SeDebugPrivilege 1536 ejima cripted.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
ejima cripted.exeejima cripted.exedescription pid process target process PID 1424 wrote to memory of 1536 1424 ejima cripted.exe ejima cripted.exe PID 1424 wrote to memory of 1536 1424 ejima cripted.exe ejima cripted.exe PID 1424 wrote to memory of 1536 1424 ejima cripted.exe ejima cripted.exe PID 1424 wrote to memory of 1536 1424 ejima cripted.exe ejima cripted.exe PID 1536 wrote to memory of 1808 1536 ejima cripted.exe netsh.exe PID 1536 wrote to memory of 1808 1536 ejima cripted.exe netsh.exe PID 1536 wrote to memory of 1808 1536 ejima cripted.exe netsh.exe PID 1536 wrote to memory of 1808 1536 ejima cripted.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\ejima cripted.exe"C:\Users\Admin\AppData\Local\Temp\ejima cripted.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1424 -
C:\Users\Admin\AppData\Local\Temp\ejima cripted.exe"C:\Users\Admin\AppData\Local\Temp\ejima cripted.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1536 -
C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵PID:1808