Analysis
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max time kernel
147s -
max time network
43s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 00:58
Static task
static1
Behavioral task
behavioral1
Sample
TT SWIFT.PDF.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
TT SWIFT.PDF.exe
Resource
win10v2004-20220414-en
General
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Target
TT SWIFT.PDF.exe
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Size
437KB
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MD5
16cead8ab91ee65984e242d25310c8eb
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SHA1
56eee9eed7bca79c2380ca2f8b88d5938af3cc10
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SHA256
285921447b7223c6f6c6419c9ddfa5d26619286089de7cefa3255aa5f6c3bd51
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SHA512
44cc25cb1b8c9e97706455f4de08d0b47dd09da957b4444901091726e74929d55ed8db284c501bd3d8f55af1c3bfdff0a3edc2a2652a50a0ba266b2976b6f9ab
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.yitaipackaging.com - Port:
587 - Username:
[email protected] - Password:
22799213
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 6 IoCs
Processes:
resource yara_rule behavioral1/memory/900-64-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/900-65-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/900-66-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/900-67-0x00000000004478DE-mapping.dmp family_agenttesla behavioral1/memory/900-69-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/900-71-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
TT SWIFT.PDF.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows\CurrentVersion\Run\gKWBf = "C:\\Users\\Admin\\AppData\\Roaming\\gKWBf\\gKWBf.exe" TT SWIFT.PDF.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
TT SWIFT.PDF.exedescription pid process target process PID 756 set thread context of 900 756 TT SWIFT.PDF.exe TT SWIFT.PDF.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 5 IoCs
Processes:
TT SWIFT.PDF.exeTT SWIFT.PDF.exepid process 756 TT SWIFT.PDF.exe 756 TT SWIFT.PDF.exe 756 TT SWIFT.PDF.exe 900 TT SWIFT.PDF.exe 900 TT SWIFT.PDF.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
TT SWIFT.PDF.exeTT SWIFT.PDF.exedescription pid process Token: SeDebugPrivilege 756 TT SWIFT.PDF.exe Token: SeDebugPrivilege 900 TT SWIFT.PDF.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
TT SWIFT.PDF.exedescription pid process target process PID 756 wrote to memory of 2024 756 TT SWIFT.PDF.exe schtasks.exe PID 756 wrote to memory of 2024 756 TT SWIFT.PDF.exe schtasks.exe PID 756 wrote to memory of 2024 756 TT SWIFT.PDF.exe schtasks.exe PID 756 wrote to memory of 2024 756 TT SWIFT.PDF.exe schtasks.exe PID 756 wrote to memory of 936 756 TT SWIFT.PDF.exe TT SWIFT.PDF.exe PID 756 wrote to memory of 936 756 TT SWIFT.PDF.exe TT SWIFT.PDF.exe PID 756 wrote to memory of 936 756 TT SWIFT.PDF.exe TT SWIFT.PDF.exe PID 756 wrote to memory of 936 756 TT SWIFT.PDF.exe TT SWIFT.PDF.exe PID 756 wrote to memory of 900 756 TT SWIFT.PDF.exe TT SWIFT.PDF.exe PID 756 wrote to memory of 900 756 TT SWIFT.PDF.exe TT SWIFT.PDF.exe PID 756 wrote to memory of 900 756 TT SWIFT.PDF.exe TT SWIFT.PDF.exe PID 756 wrote to memory of 900 756 TT SWIFT.PDF.exe TT SWIFT.PDF.exe PID 756 wrote to memory of 900 756 TT SWIFT.PDF.exe TT SWIFT.PDF.exe PID 756 wrote to memory of 900 756 TT SWIFT.PDF.exe TT SWIFT.PDF.exe PID 756 wrote to memory of 900 756 TT SWIFT.PDF.exe TT SWIFT.PDF.exe PID 756 wrote to memory of 900 756 TT SWIFT.PDF.exe TT SWIFT.PDF.exe PID 756 wrote to memory of 900 756 TT SWIFT.PDF.exe TT SWIFT.PDF.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\TT SWIFT.PDF.exe"C:\Users\Admin\AppData\Local\Temp\TT SWIFT.PDF.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\dumIvW" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA304.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\TT SWIFT.PDF.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\TT SWIFT.PDF.exe"{path}"2⤵
- 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\tmpA304.tmpFilesize
1KB
MD57c620e4c1187f0490cf0824447166a6b
SHA11b6c62c3eec11185a2aa23e074312cbeb939d049
SHA25671c7b94033fb7d881df7fb65d3d02186958f5648d68e192d77c499776b7d7f67
SHA512531d1c44ca464451eb592d9249932444bc9f37b7788c82a3e8df26e2ddba7d7ea75c20aac46671850b35937fbfb0ef2b03b1dafafea7fbec244f19794690632a
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memory/756-57-0x0000000007390000-0x00000000073F6000-memory.dmpFilesize
408KB
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memory/756-55-0x00000000755B1000-0x00000000755B3000-memory.dmpFilesize
8KB
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memory/756-54-0x0000000000C00000-0x0000000000C74000-memory.dmpFilesize
464KB
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memory/756-58-0x00000000008E0000-0x000000000092C000-memory.dmpFilesize
304KB
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memory/756-56-0x00000000002E0000-0x00000000002EA000-memory.dmpFilesize
40KB
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memory/900-66-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/900-64-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/900-62-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/900-61-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/900-65-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/900-67-0x00000000004478DE-mapping.dmp
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memory/900-69-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/900-71-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/2024-59-0x0000000000000000-mapping.dmp