Analysis
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max time kernel
146s -
max time network
110s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
12-01-2021 09:38
Static task
static1
Behavioral task
behavioral1
Sample
C.V. - application letter.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
C.V. - application letter.exe
Resource
win10v20201028
General
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Target
C.V. - application letter.exe
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Size
733KB
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MD5
ceddee60268daabd5b6f11861aaaf58a
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SHA1
d845bc78df9e125e61042211903fc0e454aa249b
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SHA256
0c490787fce8baf58cbf1d2f5fcf53f6a289635e3ea1652d04fee08c9611aff6
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SHA512
3dcf50c2a8f0a0dcdb13dc01115489b970c4addae5aa1585dbd54b1580d510ae13932bff964b9199cd4e41dab72ecf18d114abcbd045f96075c066775b1e8500
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.sidlewtex.com - Port:
587 - Username:
[email protected] - Password:
swyvt(K2
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/204-11-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral2/memory/204-12-0x000000000043749E-mapping.dmp family_agenttesla -
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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Suspicious use of SetThreadContext 1 IoCs
Processes:
C.V. - application letter.exedescription pid process target process PID 1628 set thread context of 204 1628 C.V. - application letter.exe C.V. - application letter.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
C.V. - application letter.exeC.V. - application letter.exepid process 1628 C.V. - application letter.exe 204 C.V. - application letter.exe 204 C.V. - application letter.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
C.V. - application letter.exeC.V. - application letter.exedescription pid process Token: SeDebugPrivilege 1628 C.V. - application letter.exe Token: SeDebugPrivilege 204 C.V. - application letter.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
C.V. - application letter.exedescription pid process target process PID 1628 wrote to memory of 204 1628 C.V. - application letter.exe C.V. - application letter.exe PID 1628 wrote to memory of 204 1628 C.V. - application letter.exe C.V. - application letter.exe PID 1628 wrote to memory of 204 1628 C.V. - application letter.exe C.V. - application letter.exe PID 1628 wrote to memory of 204 1628 C.V. - application letter.exe C.V. - application letter.exe PID 1628 wrote to memory of 204 1628 C.V. - application letter.exe C.V. - application letter.exe PID 1628 wrote to memory of 204 1628 C.V. - application letter.exe C.V. - application letter.exe PID 1628 wrote to memory of 204 1628 C.V. - application letter.exe C.V. - application letter.exe PID 1628 wrote to memory of 204 1628 C.V. - application letter.exe C.V. - application letter.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\C.V. - application letter.exe"C:\Users\Admin\AppData\Local\Temp\C.V. - application letter.exe"1⤵
- 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\C.V. - application letter.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\C.V. - application letter.exe.logMD5
0c2899d7c6746f42d5bbe088c777f94c
SHA1622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1
SHA2565b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458
SHA512ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078
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memory/204-11-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/204-20-0x0000000005B10000-0x0000000005B11000-memory.dmpFilesize
4KB
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memory/204-19-0x0000000004FB0000-0x0000000004FB1000-memory.dmpFilesize
4KB
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memory/204-14-0x0000000073840000-0x0000000073F2E000-memory.dmpFilesize
6.9MB
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memory/204-12-0x000000000043749E-mapping.dmp
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memory/1628-6-0x00000000055E0000-0x00000000055E1000-memory.dmpFilesize
4KB
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memory/1628-10-0x0000000007D20000-0x0000000007D21000-memory.dmpFilesize
4KB
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memory/1628-9-0x0000000007BF0000-0x0000000007C75000-memory.dmpFilesize
532KB
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memory/1628-8-0x0000000005AA0000-0x0000000005AAE000-memory.dmpFilesize
56KB
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memory/1628-7-0x00000000055B0000-0x00000000055B1000-memory.dmpFilesize
4KB
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memory/1628-2-0x0000000073840000-0x0000000073F2E000-memory.dmpFilesize
6.9MB
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memory/1628-5-0x0000000005C40000-0x0000000005C41000-memory.dmpFilesize
4KB
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memory/1628-3-0x0000000000CC0000-0x0000000000CC1000-memory.dmpFilesize
4KB