Analysis
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max time kernel
133s -
max time network
134s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
23-02-2021 12:52
Static task
static1
Behavioral task
behavioral1
Sample
REQUEST FOR OFFER.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
REQUEST FOR OFFER.exe
Resource
win10v20201028
General
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Target
REQUEST FOR OFFER.exe
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Size
847KB
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MD5
0fc3feecc0164c588f7afab6e51d566b
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SHA1
60115fc27261ecf866c1900d3d5f59520a2ab65a
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SHA256
b5a2fbfeb80e2e92039a23615df8b8f63f42d1331528f514b312d4946dc22607
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SHA512
1e01b97a415c25408ffa99c1811c9861b0e3857b55f7ef951c28edf64f79b6c440cf7bcc3a0240c7db4400a980e9ed85d2988e036b99aea3d9027037b7ef61d5
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.cumjtas.com - Port:
587 - Username:
velikarakus@cumjtas.com - Password:
Brave123
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/1940-25-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/1940-26-0x000000000043761E-mapping.dmp family_agenttesla behavioral1/memory/1940-29-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla -
Executes dropped EXE 2 IoCs
Processes:
badman.exeInstallUtil.exepid process 964 badman.exe 1940 InstallUtil.exe -
Loads dropped DLL 2 IoCs
Processes:
REQUEST FOR OFFER.exebadman.exepid process 2008 REQUEST FOR OFFER.exe 964 badman.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
reg.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run reg.exe Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\neil = "C:\\Users\\Admin\\AppData\\Roaming\\badman.exe" reg.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
badman.exedescription pid process target process PID 964 set thread context of 1940 964 badman.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 7 IoCs
Processes:
REQUEST FOR OFFER.exebadman.exeInstallUtil.exepid process 2008 REQUEST FOR OFFER.exe 2008 REQUEST FOR OFFER.exe 2008 REQUEST FOR OFFER.exe 964 badman.exe 964 badman.exe 1940 InstallUtil.exe 1940 InstallUtil.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
REQUEST FOR OFFER.exebadman.exeInstallUtil.exedescription pid process Token: SeDebugPrivilege 2008 REQUEST FOR OFFER.exe Token: SeDebugPrivilege 964 badman.exe Token: SeDebugPrivilege 1940 InstallUtil.exe -
Suspicious use of WriteProcessMemory 24 IoCs
Processes:
REQUEST FOR OFFER.execmd.exebadman.exedescription pid process target process PID 2008 wrote to memory of 1936 2008 REQUEST FOR OFFER.exe cmd.exe PID 2008 wrote to memory of 1936 2008 REQUEST FOR OFFER.exe cmd.exe PID 2008 wrote to memory of 1936 2008 REQUEST FOR OFFER.exe cmd.exe PID 2008 wrote to memory of 1936 2008 REQUEST FOR OFFER.exe cmd.exe PID 1936 wrote to memory of 328 1936 cmd.exe reg.exe PID 1936 wrote to memory of 328 1936 cmd.exe reg.exe PID 1936 wrote to memory of 328 1936 cmd.exe reg.exe PID 1936 wrote to memory of 328 1936 cmd.exe reg.exe PID 2008 wrote to memory of 964 2008 REQUEST FOR OFFER.exe badman.exe PID 2008 wrote to memory of 964 2008 REQUEST FOR OFFER.exe badman.exe PID 2008 wrote to memory of 964 2008 REQUEST FOR OFFER.exe badman.exe PID 2008 wrote to memory of 964 2008 REQUEST FOR OFFER.exe badman.exe PID 964 wrote to memory of 1940 964 badman.exe InstallUtil.exe PID 964 wrote to memory of 1940 964 badman.exe InstallUtil.exe PID 964 wrote to memory of 1940 964 badman.exe InstallUtil.exe PID 964 wrote to memory of 1940 964 badman.exe InstallUtil.exe PID 964 wrote to memory of 1940 964 badman.exe InstallUtil.exe PID 964 wrote to memory of 1940 964 badman.exe InstallUtil.exe PID 964 wrote to memory of 1940 964 badman.exe InstallUtil.exe PID 964 wrote to memory of 1940 964 badman.exe InstallUtil.exe PID 964 wrote to memory of 1940 964 badman.exe InstallUtil.exe PID 964 wrote to memory of 1940 964 badman.exe InstallUtil.exe PID 964 wrote to memory of 1940 964 badman.exe InstallUtil.exe PID 964 wrote to memory of 1940 964 badman.exe InstallUtil.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\REQUEST FOR OFFER.exe"C:\Users\Admin\AppData\Local\Temp\REQUEST FOR OFFER.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 "neil" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\badman.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\reg.exeREG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "neil" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\badman.exe"3⤵
- Adds Run key to start application
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C:\Users\Admin\AppData\Roaming\badman.exe"C:\Users\Admin\AppData\Roaming\badman.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
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\badman.exeMD5
0fc3feecc0164c588f7afab6e51d566b
SHA160115fc27261ecf866c1900d3d5f59520a2ab65a
SHA256b5a2fbfeb80e2e92039a23615df8b8f63f42d1331528f514b312d4946dc22607
SHA5121e01b97a415c25408ffa99c1811c9861b0e3857b55f7ef951c28edf64f79b6c440cf7bcc3a0240c7db4400a980e9ed85d2988e036b99aea3d9027037b7ef61d5
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C:\Users\Admin\AppData\Roaming\badman.exeMD5
0fc3feecc0164c588f7afab6e51d566b
SHA160115fc27261ecf866c1900d3d5f59520a2ab65a
SHA256b5a2fbfeb80e2e92039a23615df8b8f63f42d1331528f514b312d4946dc22607
SHA5121e01b97a415c25408ffa99c1811c9861b0e3857b55f7ef951c28edf64f79b6c440cf7bcc3a0240c7db4400a980e9ed85d2988e036b99aea3d9027037b7ef61d5
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\Users\Admin\AppData\Local\Temp\InstallUtil.exeMD5
91c9ae9c9a17a9db5e08b120e668c74c
SHA150770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA256e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
SHA512ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
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\Users\Admin\AppData\Roaming\badman.exeMD5
0fc3feecc0164c588f7afab6e51d566b
SHA160115fc27261ecf866c1900d3d5f59520a2ab65a
SHA256b5a2fbfeb80e2e92039a23615df8b8f63f42d1331528f514b312d4946dc22607
SHA5121e01b97a415c25408ffa99c1811c9861b0e3857b55f7ef951c28edf64f79b6c440cf7bcc3a0240c7db4400a980e9ed85d2988e036b99aea3d9027037b7ef61d5
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memory/328-9-0x0000000000000000-mapping.dmp
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memory/964-22-0x0000000002120000-0x0000000002121000-memory.dmpFilesize
4KB
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memory/964-12-0x0000000000000000-mapping.dmp
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memory/964-15-0x0000000073AF0000-0x00000000741DE000-memory.dmpFilesize
6.9MB
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memory/964-21-0x0000000002070000-0x000000000207B000-memory.dmpFilesize
44KB
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memory/964-16-0x0000000000B40000-0x0000000000B41000-memory.dmpFilesize
4KB
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memory/964-18-0x0000000002130000-0x0000000002131000-memory.dmpFilesize
4KB
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memory/1936-8-0x0000000000000000-mapping.dmp
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memory/1940-25-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1940-26-0x000000000043761E-mapping.dmp
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memory/1940-28-0x0000000073AF0000-0x00000000741DE000-memory.dmpFilesize
6.9MB
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memory/1940-29-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1940-31-0x0000000004970000-0x0000000004971000-memory.dmpFilesize
4KB
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memory/2008-10-0x0000000004A91000-0x0000000004A92000-memory.dmpFilesize
4KB
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memory/2008-7-0x0000000000760000-0x000000000078F000-memory.dmpFilesize
188KB
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memory/2008-5-0x0000000004A90000-0x0000000004A91000-memory.dmpFilesize
4KB
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memory/2008-2-0x0000000073AF0000-0x00000000741DE000-memory.dmpFilesize
6.9MB
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memory/2008-3-0x0000000000DC0000-0x0000000000DC1000-memory.dmpFilesize
4KB