Analysis
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max time kernel
121s -
max time network
140s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
15-05-2024 01:15
Static task
static1
Behavioral task
behavioral1
Sample
3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe
Resource
win10v2004-20240508-en
General
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Target
3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe
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Size
308KB
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MD5
1ee185cb3b4f78f2a24e61798952178b
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SHA1
8049b95b5250bad311950a218de4b9727e8f4579
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SHA256
3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243
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SHA512
d16938efe9ec9936266e9c37b9c85b5f26cdfc66cc9c552186c3973ebed1c7e9f0f9f380f39cc113c03e7983dd9188a5e7292115748d78953101cfd359f0a93f
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SSDEEP
3072:iOvQ/IaGuDfIeqpMTxV/wP8rjAILNnCDDRvLGmrOAOkGt6+duWA/t/SHUebbxCbO:FQIZe+MFVXx9stvLGtELbMUTKZ1H
Malware Config
Extracted
asyncrat
0.5.7B
April3rd2024
94.156.65.181:3434
A234sdgrgMutex_6SI8OkPnk
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delay
3
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install
false
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install_folder
%AppData%
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Detect ZGRat V1 34 IoCs
Processes:
resource yara_rule behavioral1/memory/2904-3-0x00000000085F0000-0x0000000008826000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-4-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-7-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-15-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-25-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-23-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-21-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-19-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-17-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-13-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-11-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-9-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-5-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-27-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-37-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-61-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-67-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-65-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-63-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-59-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-57-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-55-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-53-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-51-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-49-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-47-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-45-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-43-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-41-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-39-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-35-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-33-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-31-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 behavioral1/memory/2904-29-0x00000000085F0000-0x0000000008820000-memory.dmp family_zgrat_v1 -
Async RAT payload 1 IoCs
Processes:
resource yara_rule \Users\Admin\AppData\Local\Temp\FB_BC9C.tmp.exe family_asyncrat -
Detect packed .NET executables. Mostly AgentTeslaV4. 3 IoCs
Processes:
resource yara_rule behavioral1/memory/3384-4910-0x0000000000400000-0x000000000044B000-memory.dmp INDICATOR_EXE_Packed_GEN01 \Users\Admin\AppData\Local\Temp\FB_BB63.tmp.exe INDICATOR_EXE_Packed_GEN01 behavioral1/memory/3500-4923-0x0000000000D40000-0x0000000000D82000-memory.dmp INDICATOR_EXE_Packed_GEN01 -
Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 3 IoCs
Processes:
resource yara_rule behavioral1/memory/3384-4910-0x0000000000400000-0x000000000044B000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers \Users\Admin\AppData\Local\Temp\FB_BB63.tmp.exe INDICATOR_SUSPICIOUS_Binary_References_Browsers behavioral1/memory/3500-4923-0x0000000000D40000-0x0000000000D82000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers -
Detects executables referencing Windows vault credential objects. Observed in infostealers 3 IoCs
Processes:
resource yara_rule behavioral1/memory/3384-4910-0x0000000000400000-0x000000000044B000-memory.dmp INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID \Users\Admin\AppData\Local\Temp\FB_BB63.tmp.exe INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID behavioral1/memory/3500-4923-0x0000000000D40000-0x0000000000D82000-memory.dmp INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID -
Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 3 IoCs
Processes:
resource yara_rule behavioral1/memory/3384-4910-0x0000000000400000-0x000000000044B000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store \Users\Admin\AppData\Local\Temp\FB_BB63.tmp.exe INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store behavioral1/memory/3500-4923-0x0000000000D40000-0x0000000000D82000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store -
Detects executables referencing many email and collaboration clients. Observed in information stealers 3 IoCs
Processes:
resource yara_rule behavioral1/memory/3384-4910-0x0000000000400000-0x000000000044B000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients \Users\Admin\AppData\Local\Temp\FB_BB63.tmp.exe INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients behavioral1/memory/3500-4923-0x0000000000D40000-0x0000000000D82000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients -
Detects executables referencing many file transfer clients. Observed in information stealers 3 IoCs
Processes:
resource yara_rule behavioral1/memory/3384-4910-0x0000000000400000-0x000000000044B000-memory.dmp INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients \Users\Admin\AppData\Local\Temp\FB_BB63.tmp.exe INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients behavioral1/memory/3500-4923-0x0000000000D40000-0x0000000000D82000-memory.dmp INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients -
Detects file containing reversed ASEP Autorun registry keys 3 IoCs
Processes:
resource yara_rule behavioral1/memory/3384-4910-0x0000000000400000-0x000000000044B000-memory.dmp INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse \Users\Admin\AppData\Local\Temp\FB_BC9C.tmp.exe INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse behavioral1/memory/3536-4925-0x0000000000220000-0x0000000000232000-memory.dmp INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse -
Executes dropped EXE 2 IoCs
Processes:
FB_BB63.tmp.exeFB_BC9C.tmp.exepid process 3500 FB_BB63.tmp.exe 3536 FB_BC9C.tmp.exe -
Loads dropped DLL 2 IoCs
Processes:
RegAsm.exepid process 3384 RegAsm.exe 3384 RegAsm.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
Processes:
3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Windows\CurrentVersion\Run\savef = "C:\\Users\\Admin\\AppData\\Roaming\\savef.exe" 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.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.
Processes:
flow ioc 3 api.ipify.org 4 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exedescription pid process target process PID 2904 set thread context of 3384 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe RegAsm.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
FB_BB63.tmp.exepid process 3500 FB_BB63.tmp.exe 3500 FB_BB63.tmp.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exeFB_BB63.tmp.exeFB_BC9C.tmp.exedescription pid process Token: SeDebugPrivilege 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe Token: SeDebugPrivilege 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe Token: SeDebugPrivilege 3500 FB_BB63.tmp.exe Token: SeDebugPrivilege 3536 FB_BC9C.tmp.exe -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exeRegAsm.exedescription pid process target process PID 2904 wrote to memory of 3384 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe RegAsm.exe PID 2904 wrote to memory of 3384 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe RegAsm.exe PID 2904 wrote to memory of 3384 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe RegAsm.exe PID 2904 wrote to memory of 3384 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe RegAsm.exe PID 2904 wrote to memory of 3384 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe RegAsm.exe PID 2904 wrote to memory of 3384 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe RegAsm.exe PID 2904 wrote to memory of 3384 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe RegAsm.exe PID 2904 wrote to memory of 3384 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe RegAsm.exe PID 2904 wrote to memory of 3384 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe RegAsm.exe PID 2904 wrote to memory of 3384 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe RegAsm.exe PID 2904 wrote to memory of 3384 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe RegAsm.exe PID 2904 wrote to memory of 3384 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe RegAsm.exe PID 2904 wrote to memory of 3384 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe RegAsm.exe PID 3384 wrote to memory of 3500 3384 RegAsm.exe FB_BB63.tmp.exe PID 3384 wrote to memory of 3500 3384 RegAsm.exe FB_BB63.tmp.exe PID 3384 wrote to memory of 3500 3384 RegAsm.exe FB_BB63.tmp.exe PID 3384 wrote to memory of 3500 3384 RegAsm.exe FB_BB63.tmp.exe PID 3384 wrote to memory of 3536 3384 RegAsm.exe FB_BC9C.tmp.exe PID 3384 wrote to memory of 3536 3384 RegAsm.exe FB_BC9C.tmp.exe PID 3384 wrote to memory of 3536 3384 RegAsm.exe FB_BC9C.tmp.exe PID 3384 wrote to memory of 3536 3384 RegAsm.exe FB_BC9C.tmp.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe"C:\Users\Admin\AppData\Local\Temp\3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2904 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3384 -
C:\Users\Admin\AppData\Local\Temp\FB_BB63.tmp.exe"C:\Users\Admin\AppData\Local\Temp\FB_BB63.tmp.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3500
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C:\Users\Admin\AppData\Local\Temp\FB_BC9C.tmp.exe"C:\Users\Admin\AppData\Local\Temp\FB_BC9C.tmp.exe"3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3536
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
68KB
MD529f65ba8e88c063813cc50a4ea544e93
SHA105a7040d5c127e68c25d81cc51271ffb8bef3568
SHA2561ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184
SHA512e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa
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Filesize
237KB
MD58c4c985b5719d0acadafb2cc03f0e86e
SHA10e0644087a29575b5c4a1d3b76a79cf95c577d7b
SHA256a2007da837ca22cd0e894946f9ce20a3352ac42c34c5930c159730ea4538e79b
SHA5128255101de0ed591128c5d093cd683193a24f5044fc297e6e51ae58714b121164b480c9868c477c24d653a231dc17db4c5f78de9ccc084e14133cc95e14e6219c
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Filesize
45KB
MD5ac190c9e687b2c110354d3809d32a57d
SHA13fdfeca134e469f6ac42e03b3d39359313fb36fc
SHA2566c0291916555438da7d3705991100d295d480ae58b98147a4d83fbd3cfb8dc19
SHA512161ae735acf5b60c6c906c1b0223838987a24cbb410623af2495b31e2e663561a6ecf1ad5f08956a6fb2134ebd32aaaa1573bae7e1c4abdfb7fb0ca8b2a9ecb5