Analysis
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max time kernel
87s -
max time network
51s -
platform
windows7_x64 -
resource
win7v200430 -
submitted
08-07-2020 06:40
Static task
static1
Behavioral task
behavioral1
Sample
Swift.exe
Resource
win7v200430
Behavioral task
behavioral2
Sample
Swift.exe
Resource
win10
General
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Target
Swift.exe
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Size
821KB
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MD5
6c8348a7919b86d55c42ed90de3447af
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SHA1
0bf999995bd3857ca7d671158915b82985cce800
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SHA256
cbda39c31315687590c184cd2626289865fd5abbb42295fe60741ec5135a7119
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SHA512
084e3f5d82e57145fd71b032e6560cc3e0c1ac0559ba5b1a4a9b6b70f991e62f06e30daeb9389b131bf16b00afeab38a5781a9f79665702bbf4b87b305906220
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.chenklins.com - Port:
587 - Username:
[email protected] - Password:
oJmQ&%Rq6Y%F
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/1784-2-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1784-3-0x0000000000446E4E-mapping.dmp family_agenttesla behavioral1/memory/1784-4-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1784-5-0x0000000000400000-0x000000000044C000-memory.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:
Swift.exedescription pid process target process PID 1100 set thread context of 1784 1100 Swift.exe Swift.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 2 IoCs
Processes:
Swift.exepid process 1784 Swift.exe 1784 Swift.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Swift.exedescription pid process Token: SeDebugPrivilege 1784 Swift.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Swift.exepid process 1784 Swift.exe -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
Swift.exedescription pid process target process PID 1100 wrote to memory of 1488 1100 Swift.exe schtasks.exe PID 1100 wrote to memory of 1488 1100 Swift.exe schtasks.exe PID 1100 wrote to memory of 1488 1100 Swift.exe schtasks.exe PID 1100 wrote to memory of 1488 1100 Swift.exe schtasks.exe PID 1100 wrote to memory of 1784 1100 Swift.exe Swift.exe PID 1100 wrote to memory of 1784 1100 Swift.exe Swift.exe PID 1100 wrote to memory of 1784 1100 Swift.exe Swift.exe PID 1100 wrote to memory of 1784 1100 Swift.exe Swift.exe PID 1100 wrote to memory of 1784 1100 Swift.exe Swift.exe PID 1100 wrote to memory of 1784 1100 Swift.exe Swift.exe PID 1100 wrote to memory of 1784 1100 Swift.exe Swift.exe PID 1100 wrote to memory of 1784 1100 Swift.exe Swift.exe PID 1100 wrote to memory of 1784 1100 Swift.exe Swift.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Swift.exe"C:\Users\Admin\AppData\Local\Temp\Swift.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CkQTRNWugQuO" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8D6.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Swift.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp8D6.tmpMD5
04d8a30d7f1503bd19c960c23ce7320a
SHA144107cce6f9690c4ee85cbad7663c48fe9851e01
SHA2564ff8d2d424ec2c997f50ed1678259d425e1e64fad60982e59ab2d150c2b32fcb
SHA512d186bbf237f1a02dcaa147a247b2889f53fd3800f4cbea8ab659637e0c44478a057994b53d13f6aa4b2c9f9d3ebf96cec46f335536eb64318f862a9e1b26392c
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memory/1488-0-0x0000000000000000-mapping.dmp
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memory/1784-2-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1784-3-0x0000000000446E4E-mapping.dmp
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memory/1784-4-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1784-5-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB