Analysis
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max time kernel
143s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231127-en -
resource tags
arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system -
submitted
11-12-2023 15:55
Static task
static1
Behavioral task
behavioral1
Sample
SecuriteInfo.com.Trojan.DownLoaderNET.887.9426.29852.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
SecuriteInfo.com.Trojan.DownLoaderNET.887.9426.29852.exe
Resource
win10v2004-20231127-en
General
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Target
SecuriteInfo.com.Trojan.DownLoaderNET.887.9426.29852.exe
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Size
17KB
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MD5
af317f313efdbcfd959ebd12cdca7ef4
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SHA1
d30eb416498ab3adb33351fb8aadbf84af0b53f4
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SHA256
bd8edeada1927c7fc6c0a816c824f5973477368cc61045c7d8ab4f1d60c842a2
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SHA512
bd6e82d6033bda321cfda5c32729dea111274349266a6a679d629b597711cb5dc5c078095259ecc3c7226878d4e88019434ac11ffbddbda9cad018b54fdb45d4
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SSDEEP
384:p7n2/uF8iEgE6ki29QAV1VF0hXHMGBk7/UMQ3J4:NnFHJP2/V1VaXLkj24
Malware Config
Extracted
Protocol: smtp- Host:
mail.merlinmotorworks.com - Port:
587 - Username:
[email protected] - Password:
Merlin1080S
Extracted
agenttesla
Protocol: smtp- Host:
mail.merlinmotorworks.com - Port:
587 - Username:
[email protected] - Password:
Merlin1080S - 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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Detect ZGRat V1 34 IoCs
resource yara_rule behavioral2/memory/5116-3-0x0000000005F90000-0x0000000006038000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-13-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-15-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-17-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-11-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-19-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-9-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-7-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-25-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-27-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-23-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-21-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-5-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-4-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-29-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-37-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-35-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-43-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-41-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-47-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-51-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-59-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-63-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-65-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-67-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-61-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-57-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-55-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-53-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-49-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-45-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-39-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-33-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 behavioral2/memory/5116-31-0x0000000005F90000-0x0000000006033000-memory.dmp family_zgrat_v1 -
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-1-5-21-2013768333-4045878716-2922883000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\windows_update = "C:\\Users\\Admin\\AppData\\Roaming\\windows_update.exe" SecuriteInfo.com.Trojan.DownLoaderNET.887.9426.29852.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 39 ip-api.com -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 5116 set thread context of 4792 5116 SecuriteInfo.com.Trojan.DownLoaderNET.887.9426.29852.exe 100 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4792 SecuriteInfo.com.Trojan.DownLoaderNET.887.9426.29852.exe 4792 SecuriteInfo.com.Trojan.DownLoaderNET.887.9426.29852.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 5116 SecuriteInfo.com.Trojan.DownLoaderNET.887.9426.29852.exe Token: SeDebugPrivilege 4792 SecuriteInfo.com.Trojan.DownLoaderNET.887.9426.29852.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 5116 wrote to memory of 4792 5116 SecuriteInfo.com.Trojan.DownLoaderNET.887.9426.29852.exe 100 PID 5116 wrote to memory of 4792 5116 SecuriteInfo.com.Trojan.DownLoaderNET.887.9426.29852.exe 100 PID 5116 wrote to memory of 4792 5116 SecuriteInfo.com.Trojan.DownLoaderNET.887.9426.29852.exe 100 PID 5116 wrote to memory of 4792 5116 SecuriteInfo.com.Trojan.DownLoaderNET.887.9426.29852.exe 100 PID 5116 wrote to memory of 4792 5116 SecuriteInfo.com.Trojan.DownLoaderNET.887.9426.29852.exe 100 PID 5116 wrote to memory of 4792 5116 SecuriteInfo.com.Trojan.DownLoaderNET.887.9426.29852.exe 100 PID 5116 wrote to memory of 4792 5116 SecuriteInfo.com.Trojan.DownLoaderNET.887.9426.29852.exe 100 PID 5116 wrote to memory of 4792 5116 SecuriteInfo.com.Trojan.DownLoaderNET.887.9426.29852.exe 100
Processes
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownLoaderNET.887.9426.29852.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownLoaderNET.887.9426.29852.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5116 -
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownLoaderNET.887.9426.29852.exeC:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownLoaderNET.887.9426.29852.exe2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4792
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\SecuriteInfo.com.Trojan.DownLoaderNET.887.9426.29852.exe.log
Filesize1KB
MD5489c7565f9b029ba9fadff774073cc98
SHA156c05089b33ee7e7dfa9e6a2d098164efd8e1150
SHA25610bf6242da02dad8b2e1208b9dab9a7303cf986320e05e5ef20b99c9b71326d4
SHA512ddea09c011a8d4f85905842c2f34c98add0110a0b6b3b2709718c3614a2c42dec5f4f5d5b9442cfd3c6c23e9a90c8c0b25c14c3dbd42faea9cc8dd232cace1ac