Analysis
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max time kernel
141s -
max time network
154s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
03-05-2021 19:11
Static task
static1
Behavioral task
behavioral1
Sample
086789aa35a788528d13e3601d24f888.exe
Resource
win7v20210408
General
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Target
086789aa35a788528d13e3601d24f888.exe
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Size
1.1MB
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MD5
086789aa35a788528d13e3601d24f888
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SHA1
e7f740dd7a89334a7e5c358bda8bfcf492b9c1fc
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SHA256
82d0600bcebe2f55971be96182fc9c164c15308c214560a8c90d979aa03426e4
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SHA512
e40d0c1b3b3a05ec93cb19aa2f2f2bafa24ab14e9c0bd8b9029a2c487cdb3ccb4bc12001ccdcf2baa6cef280c1638d23848306f2b9254c9fb022b609047ce5ee
Malware Config
Extracted
asyncrat
0.5.7B
45.15.143.199:6606
45.15.143.199:7707
45.15.143.199:8808
AsyncMutex_6SI8OkPnk
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aes_key
OoiQ3awN02CPVF1J0BXVxr90eBdh9zc6
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anti_detection
false
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autorun
false
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bdos
false
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delay
Default
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host
45.15.143.199
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hwid
3
- install_file
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install_folder
%AppData%
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mutex
AsyncMutex_6SI8OkPnk
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pastebin_config
null
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port
6606,7707,8808
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version
0.5.7B
Signatures
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Async RAT payload 3 IoCs
Processes:
resource yara_rule behavioral1/memory/1320-66-0x0000000000400000-0x0000000000412000-memory.dmp asyncrat behavioral1/memory/1320-67-0x000000000040C70E-mapping.dmp asyncrat behavioral1/memory/1320-68-0x0000000000400000-0x0000000000412000-memory.dmp asyncrat -
Suspicious use of NtSetInformationThreadHideFromDebugger 7 IoCs
Processes:
086789aa35a788528d13e3601d24f888.exepid process 1096 086789aa35a788528d13e3601d24f888.exe 1096 086789aa35a788528d13e3601d24f888.exe 1096 086789aa35a788528d13e3601d24f888.exe 1096 086789aa35a788528d13e3601d24f888.exe 1096 086789aa35a788528d13e3601d24f888.exe 1096 086789aa35a788528d13e3601d24f888.exe 1096 086789aa35a788528d13e3601d24f888.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
086789aa35a788528d13e3601d24f888.exedescription pid process target process PID 1096 set thread context of 1320 1096 086789aa35a788528d13e3601d24f888.exe 086789aa35a788528d13e3601d24f888.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1508 1096 WerFault.exe 086789aa35a788528d13e3601d24f888.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 612 timeout.exe -
Suspicious behavior: EnumeratesProcesses 10 IoCs
Processes:
086789aa35a788528d13e3601d24f888.exeWerFault.exepid process 1096 086789aa35a788528d13e3601d24f888.exe 1096 086789aa35a788528d13e3601d24f888.exe 1096 086789aa35a788528d13e3601d24f888.exe 1096 086789aa35a788528d13e3601d24f888.exe 1096 086789aa35a788528d13e3601d24f888.exe 1508 WerFault.exe 1508 WerFault.exe 1508 WerFault.exe 1508 WerFault.exe 1508 WerFault.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
WerFault.exepid process 1508 WerFault.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
086789aa35a788528d13e3601d24f888.exeWerFault.exe086789aa35a788528d13e3601d24f888.exedescription pid process Token: SeDebugPrivilege 1096 086789aa35a788528d13e3601d24f888.exe Token: SeDebugPrivilege 1508 WerFault.exe Token: SeDebugPrivilege 1320 086789aa35a788528d13e3601d24f888.exe -
Suspicious use of WriteProcessMemory 25 IoCs
Processes:
086789aa35a788528d13e3601d24f888.execmd.exedescription pid process target process PID 1096 wrote to memory of 1224 1096 086789aa35a788528d13e3601d24f888.exe cmd.exe PID 1096 wrote to memory of 1224 1096 086789aa35a788528d13e3601d24f888.exe cmd.exe PID 1096 wrote to memory of 1224 1096 086789aa35a788528d13e3601d24f888.exe cmd.exe PID 1096 wrote to memory of 1224 1096 086789aa35a788528d13e3601d24f888.exe cmd.exe PID 1224 wrote to memory of 612 1224 cmd.exe timeout.exe PID 1224 wrote to memory of 612 1224 cmd.exe timeout.exe PID 1224 wrote to memory of 612 1224 cmd.exe timeout.exe PID 1224 wrote to memory of 612 1224 cmd.exe timeout.exe PID 1096 wrote to memory of 892 1096 086789aa35a788528d13e3601d24f888.exe 086789aa35a788528d13e3601d24f888.exe PID 1096 wrote to memory of 892 1096 086789aa35a788528d13e3601d24f888.exe 086789aa35a788528d13e3601d24f888.exe PID 1096 wrote to memory of 892 1096 086789aa35a788528d13e3601d24f888.exe 086789aa35a788528d13e3601d24f888.exe PID 1096 wrote to memory of 892 1096 086789aa35a788528d13e3601d24f888.exe 086789aa35a788528d13e3601d24f888.exe PID 1096 wrote to memory of 1320 1096 086789aa35a788528d13e3601d24f888.exe 086789aa35a788528d13e3601d24f888.exe PID 1096 wrote to memory of 1320 1096 086789aa35a788528d13e3601d24f888.exe 086789aa35a788528d13e3601d24f888.exe PID 1096 wrote to memory of 1320 1096 086789aa35a788528d13e3601d24f888.exe 086789aa35a788528d13e3601d24f888.exe PID 1096 wrote to memory of 1320 1096 086789aa35a788528d13e3601d24f888.exe 086789aa35a788528d13e3601d24f888.exe PID 1096 wrote to memory of 1320 1096 086789aa35a788528d13e3601d24f888.exe 086789aa35a788528d13e3601d24f888.exe PID 1096 wrote to memory of 1320 1096 086789aa35a788528d13e3601d24f888.exe 086789aa35a788528d13e3601d24f888.exe PID 1096 wrote to memory of 1320 1096 086789aa35a788528d13e3601d24f888.exe 086789aa35a788528d13e3601d24f888.exe PID 1096 wrote to memory of 1320 1096 086789aa35a788528d13e3601d24f888.exe 086789aa35a788528d13e3601d24f888.exe PID 1096 wrote to memory of 1320 1096 086789aa35a788528d13e3601d24f888.exe 086789aa35a788528d13e3601d24f888.exe PID 1096 wrote to memory of 1508 1096 086789aa35a788528d13e3601d24f888.exe WerFault.exe PID 1096 wrote to memory of 1508 1096 086789aa35a788528d13e3601d24f888.exe WerFault.exe PID 1096 wrote to memory of 1508 1096 086789aa35a788528d13e3601d24f888.exe WerFault.exe PID 1096 wrote to memory of 1508 1096 086789aa35a788528d13e3601d24f888.exe WerFault.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\086789aa35a788528d13e3601d24f888.exe"C:\Users\Admin\AppData\Local\Temp\086789aa35a788528d13e3601d24f888.exe"1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout 12⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout 13⤵
- Delays execution with timeout.exe
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C:\Users\Admin\AppData\Local\Temp\086789aa35a788528d13e3601d24f888.exe"C:\Users\Admin\AppData\Local\Temp\086789aa35a788528d13e3601d24f888.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\086789aa35a788528d13e3601d24f888.exe"C:\Users\Admin\AppData\Local\Temp\086789aa35a788528d13e3601d24f888.exe"2⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1096 -s 8962⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/612-65-0x0000000000000000-mapping.dmp
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memory/1096-60-0x0000000000DF0000-0x0000000000DF1000-memory.dmpFilesize
4KB
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memory/1096-62-0x00000000002F0000-0x0000000000318000-memory.dmpFilesize
160KB
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memory/1096-63-0x0000000004F30000-0x0000000004F31000-memory.dmpFilesize
4KB
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memory/1224-64-0x0000000000000000-mapping.dmp
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memory/1320-66-0x0000000000400000-0x0000000000412000-memory.dmpFilesize
72KB
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memory/1320-67-0x000000000040C70E-mapping.dmp
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memory/1320-68-0x0000000000400000-0x0000000000412000-memory.dmpFilesize
72KB
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memory/1320-71-0x0000000004D50000-0x0000000004D51000-memory.dmpFilesize
4KB
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memory/1508-70-0x0000000000000000-mapping.dmp
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memory/1508-72-0x0000000000280000-0x0000000000281000-memory.dmpFilesize
4KB