Analysis
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max time kernel
101s -
max time network
13s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
05-12-2020 15:27
Static task
static1
Behavioral task
behavioral1
Sample
INVOICE_(F46-13 ).exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
INVOICE_(F46-13 ).exe
Resource
win10v20201028
General
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Target
INVOICE_(F46-13 ).exe
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Size
1.1MB
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MD5
19051a2ab285284f277ec3c35bf3784f
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SHA1
bf0c7dac253ef3a1229103066b6be4c5f87e4939
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SHA256
1d35fbe1961f63fcc426c5a332d5dfc93dd051ecdfd17ea47790f80f22171ce1
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SHA512
3f898dd4cc2640a7fdd453cc797bdc3591975336acaeecda1053e8ad47b8cbb970ad2e52bde05f548b12c36036cc87eab5cf7571d96fc74019520cecbd9dfc0b
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.transgear.in - Port:
587 - Username:
purchase@transgear.in - Password:
purchase@2020*
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 4 IoCs
Processes:
resource yara_rule behavioral1/memory/268-13-0x000000000043783E-mapping.dmp family_agenttesla behavioral1/memory/268-12-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/268-14-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/268-15-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla -
Drops file in Drivers directory 1 IoCs
Processes:
RegSvcs.exedescription ioc process File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
RegSvcs.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\lEmohP = "C:\\Users\\Admin\\AppData\\Roaming\\lEmohP\\lEmohP.exe" RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
INVOICE_(F46-13 ).exedescription pid process target process PID 1824 set thread context of 268 1824 INVOICE_(F46-13 ).exe RegSvcs.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
INVOICE_(F46-13 ).exeRegSvcs.exepid process 1824 INVOICE_(F46-13 ).exe 268 RegSvcs.exe 268 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
INVOICE_(F46-13 ).exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 1824 INVOICE_(F46-13 ).exe Token: SeDebugPrivilege 268 RegSvcs.exe -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
INVOICE_(F46-13 ).exedescription pid process target process PID 1824 wrote to memory of 388 1824 INVOICE_(F46-13 ).exe schtasks.exe PID 1824 wrote to memory of 388 1824 INVOICE_(F46-13 ).exe schtasks.exe PID 1824 wrote to memory of 388 1824 INVOICE_(F46-13 ).exe schtasks.exe PID 1824 wrote to memory of 388 1824 INVOICE_(F46-13 ).exe schtasks.exe PID 1824 wrote to memory of 268 1824 INVOICE_(F46-13 ).exe RegSvcs.exe PID 1824 wrote to memory of 268 1824 INVOICE_(F46-13 ).exe RegSvcs.exe PID 1824 wrote to memory of 268 1824 INVOICE_(F46-13 ).exe RegSvcs.exe PID 1824 wrote to memory of 268 1824 INVOICE_(F46-13 ).exe RegSvcs.exe PID 1824 wrote to memory of 268 1824 INVOICE_(F46-13 ).exe RegSvcs.exe PID 1824 wrote to memory of 268 1824 INVOICE_(F46-13 ).exe RegSvcs.exe PID 1824 wrote to memory of 268 1824 INVOICE_(F46-13 ).exe RegSvcs.exe PID 1824 wrote to memory of 268 1824 INVOICE_(F46-13 ).exe RegSvcs.exe PID 1824 wrote to memory of 268 1824 INVOICE_(F46-13 ).exe RegSvcs.exe PID 1824 wrote to memory of 268 1824 INVOICE_(F46-13 ).exe RegSvcs.exe PID 1824 wrote to memory of 268 1824 INVOICE_(F46-13 ).exe RegSvcs.exe PID 1824 wrote to memory of 268 1824 INVOICE_(F46-13 ).exe RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\INVOICE_(F46-13 ).exe"C:\Users\Admin\AppData\Local\Temp\INVOICE_(F46-13 ).exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vHAbZda" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF0F3.tmp"2⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.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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C:\Users\Admin\AppData\Local\Temp\tmpF0F3.tmpMD5
eba045095978a1e41fff7a3d495393b8
SHA1d885e2be65f9ccb381c3445457b189cb70f8e058
SHA2568f116f70313c00a0eaf2e48a211c7dd8fcf524ba003bb9b7dc3bbdac371b9c1e
SHA512586bcc949889097d23ed233bf5df2bab9db397ee396011aba86360ae5cfc6d10209828eff63d0ef2676882407d5872fda4b8cb1f76d2331903d6cb6fae958314
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memory/268-16-0x0000000073980000-0x000000007406E000-memory.dmpFilesize
6.9MB
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memory/268-15-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/268-14-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/268-12-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/268-13-0x000000000043783E-mapping.dmp
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memory/388-10-0x0000000000000000-mapping.dmp
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memory/1824-2-0x0000000073980000-0x000000007406E000-memory.dmpFilesize
6.9MB
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memory/1824-9-0x0000000004D10000-0x0000000004D4A000-memory.dmpFilesize
232KB
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memory/1824-7-0x0000000000590000-0x0000000000598000-memory.dmpFilesize
32KB
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memory/1824-6-0x0000000000C20000-0x0000000000C77000-memory.dmpFilesize
348KB
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memory/1824-5-0x0000000025890000-0x0000000045878000-memory.dmpFilesize
511.9MB
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memory/1824-3-0x0000000000CB0000-0x0000000000CB1000-memory.dmpFilesize
4KB