Analysis
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max time kernel
145s -
max time network
11s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
16-04-2021 19:36
Static task
static1
Behavioral task
behavioral1
Sample
goody(1).exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
goody(1).exe
Resource
win10v20210410
General
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Target
goody(1).exe
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Size
1.2MB
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MD5
5435ffcc0f1eac1c9056502764f9713c
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SHA1
1bd97277f4f7e95c564122f72db68ab16ad539e2
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SHA256
bf2ad88f65ab47227ea5240ff3179b62778886f92546c31b380c255bab994858
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SHA512
c050ae41cb38b250f7c8b4baf2617b8ca1f1f775ac0f3636f9adb700f0da8a45034085fbba64b4a110996d077d0c1ecac0fdb91698868f1e209850817e50a938
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.almasroor.com - Port:
587 - Username:
[email protected] - Password:
042264528
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/1092-66-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/1092-67-0x00000000004375DE-mapping.dmp family_agenttesla behavioral1/memory/1092-68-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla -
Drops file in Drivers directory 1 IoCs
Processes:
goody(1).exedescription ioc process File opened for modification C:\Windows\system32\drivers\etc\hosts goody(1).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:
goody(1).exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\kprUEGC = "C:\\Users\\Admin\\AppData\\Roaming\\kprUEGC\\kprUEGC.exe" goody(1).exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
goody(1).exedescription pid process target process PID 736 set thread context of 1092 736 goody(1).exe goody(1).exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
goody(1).exepid process 1092 goody(1).exe 1092 goody(1).exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
goody(1).exedescription pid process Token: SeDebugPrivilege 1092 goody(1).exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
goody(1).exepid process 1092 goody(1).exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
goody(1).exedescription pid process target process PID 736 wrote to memory of 1092 736 goody(1).exe goody(1).exe PID 736 wrote to memory of 1092 736 goody(1).exe goody(1).exe PID 736 wrote to memory of 1092 736 goody(1).exe goody(1).exe PID 736 wrote to memory of 1092 736 goody(1).exe goody(1).exe PID 736 wrote to memory of 1092 736 goody(1).exe goody(1).exe PID 736 wrote to memory of 1092 736 goody(1).exe goody(1).exe PID 736 wrote to memory of 1092 736 goody(1).exe goody(1).exe PID 736 wrote to memory of 1092 736 goody(1).exe goody(1).exe PID 736 wrote to memory of 1092 736 goody(1).exe goody(1).exe
Processes
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C:\Users\Admin\AppData\Local\Temp\goody(1).exe"C:\Users\Admin\AppData\Local\Temp\goody(1).exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:736 -
C:\Users\Admin\AppData\Local\Temp\goody(1).exe"{path}"2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1092