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
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
resource yara_rule behavioral1/files/0x0007000000016dde-4919.dat family_asyncrat -
Detect packed .NET executables. Mostly AgentTeslaV4. 3 IoCs
resource yara_rule behavioral1/memory/3384-4910-0x0000000000400000-0x000000000044B000-memory.dmp INDICATOR_EXE_Packed_GEN01 behavioral1/files/0x000d000000016d71-4912.dat 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
resource yara_rule behavioral1/memory/3384-4910-0x0000000000400000-0x000000000044B000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers behavioral1/files/0x000d000000016d71-4912.dat 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
resource yara_rule behavioral1/memory/3384-4910-0x0000000000400000-0x000000000044B000-memory.dmp INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID behavioral1/files/0x000d000000016d71-4912.dat 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
resource yara_rule behavioral1/memory/3384-4910-0x0000000000400000-0x000000000044B000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store behavioral1/files/0x000d000000016d71-4912.dat 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
resource yara_rule behavioral1/memory/3384-4910-0x0000000000400000-0x000000000044B000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients behavioral1/files/0x000d000000016d71-4912.dat 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
resource yara_rule behavioral1/memory/3384-4910-0x0000000000400000-0x000000000044B000-memory.dmp INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients behavioral1/files/0x000d000000016d71-4912.dat 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
resource yara_rule behavioral1/memory/3384-4910-0x0000000000400000-0x000000000044B000-memory.dmp INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse behavioral1/files/0x0007000000016dde-4919.dat 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
pid Process 3500 FB_BB63.tmp.exe 3536 FB_BC9C.tmp.exe -
Loads dropped DLL 2 IoCs
pid 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
description 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.
flow ioc 3 api.ipify.org 4 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2904 set thread context of 3384 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe 28 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3500 FB_BB63.tmp.exe 3500 FB_BB63.tmp.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description 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
description pid Process procid_target PID 2904 wrote to memory of 3384 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe 28 PID 2904 wrote to memory of 3384 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe 28 PID 2904 wrote to memory of 3384 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe 28 PID 2904 wrote to memory of 3384 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe 28 PID 2904 wrote to memory of 3384 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe 28 PID 2904 wrote to memory of 3384 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe 28 PID 2904 wrote to memory of 3384 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe 28 PID 2904 wrote to memory of 3384 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe 28 PID 2904 wrote to memory of 3384 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe 28 PID 2904 wrote to memory of 3384 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe 28 PID 2904 wrote to memory of 3384 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe 28 PID 2904 wrote to memory of 3384 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe 28 PID 2904 wrote to memory of 3384 2904 3d75eede311931faf4dc46008199f7dc49a42237388ac8471c3a5a07432fb243.exe 28 PID 3384 wrote to memory of 3500 3384 RegAsm.exe 29 PID 3384 wrote to memory of 3500 3384 RegAsm.exe 29 PID 3384 wrote to memory of 3500 3384 RegAsm.exe 29 PID 3384 wrote to memory of 3500 3384 RegAsm.exe 29 PID 3384 wrote to memory of 3536 3384 RegAsm.exe 30 PID 3384 wrote to memory of 3536 3384 RegAsm.exe 30 PID 3384 wrote to memory of 3536 3384 RegAsm.exe 30 PID 3384 wrote to memory of 3536 3384 RegAsm.exe 30
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
Loading Replay Monitor...
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