Analysis
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max time kernel
112s -
max time network
151s -
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 08:02
Static task
static1
Behavioral task
behavioral1
Sample
Uqzqkjvjt.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
Uqzqkjvjt.exe
Resource
win10v2004-20231127-en
General
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Target
Uqzqkjvjt.exe
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Size
667KB
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MD5
d840d8828c7d653df6e528c5839c58e1
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SHA1
2200c0209a437889afe3b268301fdfc467b70fd7
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SHA256
4a27c12a8f4fb92e14521406e64dee16c6e888ba8de479b56d273241f514883b
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SHA512
1fa04c5285db39fd177d6e5498d5af7e60bfb3446d9b756acfeed0d86121dd0e037feed483362a2a790e63a4559b073231147c4f974603be959327c286a6b608
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SSDEEP
12288:8JCwrKHetRgFqSFa7y0iL/M8GXem/rZcsMW2g7dyEL3uG5:aCJH3PTtD0/dclW20d+
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.asiaparadisehotel.com - Port:
587 - Username:
[email protected] - Password:
^b2ycDldex$@ - 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/4352-2-0x00000000054E0000-0x000000000558A000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-7-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-11-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-9-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-15-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-13-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-21-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-23-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-19-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-17-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-25-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-5-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-27-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-29-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-4-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-39-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-45-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-53-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-59-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-65-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-67-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-63-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-61-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-57-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-55-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-51-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-49-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-47-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-43-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-41-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-37-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-35-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-33-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 behavioral2/memory/4352-31-0x00000000054E0000-0x0000000005583000-memory.dmp family_zgrat_v1 -
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 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2013768333-4045878716-2922883000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Mudnhtwci = "C:\\Users\\Admin\\AppData\\Roaming\\Mudnhtwci.exe" Uqzqkjvjt.exe Set value (str) \REGISTRY\USER\S-1-5-21-2013768333-4045878716-2922883000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\M yApp = "C:\\Users\\Admin\\AppData\\Roaming\\M yApp\\M yApp.exe" RegAsm.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 42 api.ipify.org 43 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4352 set thread context of 2156 4352 Uqzqkjvjt.exe 91 -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4352 Uqzqkjvjt.exe 4352 Uqzqkjvjt.exe 2156 RegAsm.exe 2156 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4352 Uqzqkjvjt.exe Token: SeDebugPrivilege 2156 RegAsm.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 4352 wrote to memory of 3652 4352 Uqzqkjvjt.exe 90 PID 4352 wrote to memory of 3652 4352 Uqzqkjvjt.exe 90 PID 4352 wrote to memory of 3652 4352 Uqzqkjvjt.exe 90 PID 4352 wrote to memory of 2156 4352 Uqzqkjvjt.exe 91 PID 4352 wrote to memory of 2156 4352 Uqzqkjvjt.exe 91 PID 4352 wrote to memory of 2156 4352 Uqzqkjvjt.exe 91 PID 4352 wrote to memory of 2156 4352 Uqzqkjvjt.exe 91 PID 4352 wrote to memory of 2156 4352 Uqzqkjvjt.exe 91 PID 4352 wrote to memory of 2156 4352 Uqzqkjvjt.exe 91 PID 4352 wrote to memory of 2156 4352 Uqzqkjvjt.exe 91 PID 4352 wrote to memory of 2156 4352 Uqzqkjvjt.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\Uqzqkjvjt.exe"C:\Users\Admin\AppData\Local\Temp\Uqzqkjvjt.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4352 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe2⤵PID:3652
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2156
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