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Analysis
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max time kernel
142s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
12/06/2024, 11:43
Static task
static1
Behavioral task
behavioral1
Sample
SOA MAY.exe
Resource
win7-20240611-en
Behavioral task
behavioral2
Sample
SOA MAY.exe
Resource
win10v2004-20240226-en
General
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Target
SOA MAY.exe
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Size
749KB
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MD5
e25710d9677226ae6906c196b940240b
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SHA1
91afe48137e3fe0658d931042bc935e3cc7a31dc
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SHA256
4945386dd90b6b092bd13414fe19d0a296ce17f0822632a6b6567252f692cef5
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SHA512
86f867250db2d0ca959ff1126d02fa48bfef0f2ae1809bec482e6484c5d8a20073e9922322c50d36c566c31bb6b6fcad19357de5b1f0f7e56100d51cc43913f3
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SSDEEP
12288:YQdXtfETzvqwVlfEvf3xCotBH1G3Xae8lBti30S/S1jdAuJkR:Zd92zvqwVlfEH3x/VAKe8lBokSa1xAD
Malware Config
Extracted
Protocol: smtp- Host:
mail.sibasultrasonics.com - Port:
587 - Username:
[email protected] - Password:
Ken@321$MD
Extracted
agenttesla
Protocol: smtp- Host:
mail.sibasultrasonics.com - Port:
587 - Username:
[email protected] - Password:
Ken@321$MD - Email To:
[email protected]
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 4056 powershell.exe 4204 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation SOA MAY.exe -
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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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\YxAesh = "C:\\Users\\Admin\\AppData\\Roaming\\YxAesh\\YxAesh.exe" SOA MAY.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 48 api.ipify.org 49 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1600 set thread context of 3640 1600 SOA MAY.exe 105 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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.
pid Process 3960 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 1600 SOA MAY.exe 1600 SOA MAY.exe 1600 SOA MAY.exe 1600 SOA MAY.exe 1600 SOA MAY.exe 3640 SOA MAY.exe 3640 SOA MAY.exe 3640 SOA MAY.exe 4056 powershell.exe 4056 powershell.exe 4204 powershell.exe 4204 powershell.exe 4056 powershell.exe 4204 powershell.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1600 SOA MAY.exe Token: SeDebugPrivilege 4204 powershell.exe Token: SeDebugPrivilege 4056 powershell.exe Token: SeDebugPrivilege 3640 SOA MAY.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3640 SOA MAY.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 1600 wrote to memory of 4056 1600 SOA MAY.exe 99 PID 1600 wrote to memory of 4056 1600 SOA MAY.exe 99 PID 1600 wrote to memory of 4056 1600 SOA MAY.exe 99 PID 1600 wrote to memory of 4204 1600 SOA MAY.exe 101 PID 1600 wrote to memory of 4204 1600 SOA MAY.exe 101 PID 1600 wrote to memory of 4204 1600 SOA MAY.exe 101 PID 1600 wrote to memory of 3960 1600 SOA MAY.exe 103 PID 1600 wrote to memory of 3960 1600 SOA MAY.exe 103 PID 1600 wrote to memory of 3960 1600 SOA MAY.exe 103 PID 1600 wrote to memory of 3640 1600 SOA MAY.exe 105 PID 1600 wrote to memory of 3640 1600 SOA MAY.exe 105 PID 1600 wrote to memory of 3640 1600 SOA MAY.exe 105 PID 1600 wrote to memory of 3640 1600 SOA MAY.exe 105 PID 1600 wrote to memory of 3640 1600 SOA MAY.exe 105 PID 1600 wrote to memory of 3640 1600 SOA MAY.exe 105 PID 1600 wrote to memory of 3640 1600 SOA MAY.exe 105 PID 1600 wrote to memory of 3640 1600 SOA MAY.exe 105
Processes
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C:\Users\Admin\AppData\Local\Temp\SOA MAY.exe"C:\Users\Admin\AppData\Local\Temp\SOA MAY.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1600 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\SOA MAY.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4056
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\kxyfEt.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4204
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kxyfEt" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3459.tmp"2⤵
- Creates scheduled task(s)
PID:3960
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C:\Users\Admin\AppData\Local\Temp\SOA MAY.exe"C:\Users\Admin\AppData\Local\Temp\SOA MAY.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3640
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=2232 --field-trial-handle=2284,i,15722001240173834669,15048020084704567542,262144 --variations-seed-version /prefetch:81⤵PID:4804
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
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Filesize
18KB
MD5a421bfa37094e0c88778ec6c6dc3a013
SHA12534e5d10900fee32e1fe6539784a2020ecd0bf2
SHA256d179b6f64b3f6b6e29c658b87710b02aa9e4441f8409b113a445e517152b0d03
SHA512081437e28ac841125b4995347610f1c4b3acf6bfc3b0e688c7418ecbc945ad7063f5a22da77eedb54f3aa6df35703db144670ddd9a627cf37389994dc7057268
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD5d0451d6bccbd542dbe5bb4c397db7f4f
SHA1c9b8add9ba0f51089674032785826608d03b8e68
SHA256a5526839b3259318d49682efc0df726b914edd908f602751377cc69316107d2f
SHA512361a706221c0d9fd3dbb995ebf1be2fae2ea7260b759d0cabb73ae77488c69b7b2c826fc4373d8bb569a459f0410221e62de20d49b961d9f5315f39db5f56896