Analysis
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max time kernel
125s -
max time network
143s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
11-02-2023 09:39
Behavioral task
behavioral1
Sample
107412ff8d9ab42fd1944db79d22b365.exe
Resource
win7-20220901-en
General
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Target
107412ff8d9ab42fd1944db79d22b365.exe
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Size
48KB
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MD5
107412ff8d9ab42fd1944db79d22b365
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SHA1
02f88a1a858d34aac3ebc58b1bea5b85d70c5fc6
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SHA256
5974ab14aa9e0a1adf11517f431a0fe46316fe37b70b91eb47dc219034ce7437
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SHA512
c740ee81535e2488d36f2fe2413a7995d2cbb35c08e486b70907994c002f1a15aabeb3b57646b3bfc667e950ef1616dd18edb4a775e09b213b071bb93b996524
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SSDEEP
768:9eICljTILmCKi+DiBtelDSN+iV08Ybygeze1Acl5yMTvEgK/JP5Vc6KN:9eIYdmBtKDs4zb1Wcls0nkJP5VclN
Malware Config
Extracted
asyncrat
1.0.7
Default
loader2b.duckdns.org:57913
352y7t89soydgjsilhgb7805guiao
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delay
1
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install
true
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install_file
svchost.exe
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install_folder
%AppData%
Signatures
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Async RAT payload 4 IoCs
Processes:
resource yara_rule behavioral1/memory/1284-54-0x0000000000360000-0x0000000000372000-memory.dmp asyncrat C:\Users\Admin\AppData\Roaming\svchost.exe asyncrat C:\Users\Admin\AppData\Roaming\svchost.exe asyncrat behavioral1/memory/268-63-0x0000000000AE0000-0x0000000000AF2000-memory.dmp asyncrat -
Executes dropped EXE 1 IoCs
Processes:
svchost.exepid process 268 svchost.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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Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 432 timeout.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
107412ff8d9ab42fd1944db79d22b365.exepid process 1284 107412ff8d9ab42fd1944db79d22b365.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
107412ff8d9ab42fd1944db79d22b365.exesvchost.exedescription pid process Token: SeDebugPrivilege 1284 107412ff8d9ab42fd1944db79d22b365.exe Token: SeDebugPrivilege 268 svchost.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
107412ff8d9ab42fd1944db79d22b365.execmd.execmd.exedescription pid process target process PID 1284 wrote to memory of 1812 1284 107412ff8d9ab42fd1944db79d22b365.exe cmd.exe PID 1284 wrote to memory of 1812 1284 107412ff8d9ab42fd1944db79d22b365.exe cmd.exe PID 1284 wrote to memory of 1812 1284 107412ff8d9ab42fd1944db79d22b365.exe cmd.exe PID 1284 wrote to memory of 1052 1284 107412ff8d9ab42fd1944db79d22b365.exe cmd.exe PID 1284 wrote to memory of 1052 1284 107412ff8d9ab42fd1944db79d22b365.exe cmd.exe PID 1284 wrote to memory of 1052 1284 107412ff8d9ab42fd1944db79d22b365.exe cmd.exe PID 1812 wrote to memory of 556 1812 cmd.exe schtasks.exe PID 1812 wrote to memory of 556 1812 cmd.exe schtasks.exe PID 1812 wrote to memory of 556 1812 cmd.exe schtasks.exe PID 1052 wrote to memory of 432 1052 cmd.exe timeout.exe PID 1052 wrote to memory of 432 1052 cmd.exe timeout.exe PID 1052 wrote to memory of 432 1052 cmd.exe timeout.exe PID 1052 wrote to memory of 268 1052 cmd.exe svchost.exe PID 1052 wrote to memory of 268 1052 cmd.exe svchost.exe PID 1052 wrote to memory of 268 1052 cmd.exe svchost.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\107412ff8d9ab42fd1944db79d22b365.exe"C:\Users\Admin\AppData\Local\Temp\107412ff8d9ab42fd1944db79d22b365.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'3⤵
- Creates scheduled task(s)
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C:\Windows\system32\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp2434.tmp.bat""2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\timeout.exetimeout 33⤵
- Delays execution with timeout.exe
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C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.exe"3⤵
- Executes dropped EXE
- 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\tmp2434.tmp.batFilesize
151B
MD50642778b26c0f3100d7078df1f1380d3
SHA175a0dfbb0d783c855a91043dff1dcf454a1e15c7
SHA256b3a7298e4ab1b9f13051e3a3ef10f24532c22bc79fb17faf99fc6fc02bd9247b
SHA5129770ce3a4fe9b29bdbfff9bf916e4fcc37683bd0f23d9e0ad74280add204e2fedc1765db485a12f88a96aa4f64a392680ecda955062bc16c8e199fdf9ea5a269
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C:\Users\Admin\AppData\Roaming\svchost.exeFilesize
48KB
MD5107412ff8d9ab42fd1944db79d22b365
SHA102f88a1a858d34aac3ebc58b1bea5b85d70c5fc6
SHA2565974ab14aa9e0a1adf11517f431a0fe46316fe37b70b91eb47dc219034ce7437
SHA512c740ee81535e2488d36f2fe2413a7995d2cbb35c08e486b70907994c002f1a15aabeb3b57646b3bfc667e950ef1616dd18edb4a775e09b213b071bb93b996524
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C:\Users\Admin\AppData\Roaming\svchost.exeFilesize
48KB
MD5107412ff8d9ab42fd1944db79d22b365
SHA102f88a1a858d34aac3ebc58b1bea5b85d70c5fc6
SHA2565974ab14aa9e0a1adf11517f431a0fe46316fe37b70b91eb47dc219034ce7437
SHA512c740ee81535e2488d36f2fe2413a7995d2cbb35c08e486b70907994c002f1a15aabeb3b57646b3bfc667e950ef1616dd18edb4a775e09b213b071bb93b996524
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memory/268-60-0x0000000000000000-mapping.dmp
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memory/268-63-0x0000000000AE0000-0x0000000000AF2000-memory.dmpFilesize
72KB
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memory/432-59-0x0000000000000000-mapping.dmp
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memory/556-57-0x0000000000000000-mapping.dmp
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memory/1052-56-0x0000000000000000-mapping.dmp
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memory/1284-54-0x0000000000360000-0x0000000000372000-memory.dmpFilesize
72KB
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memory/1812-55-0x0000000000000000-mapping.dmp