Analysis
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max time kernel
125s -
max time network
51s -
platform
windows10-2004_x64 -
resource
win10v2004-20231130-en -
resource tags
arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system -
submitted
06-12-2023 01:29
Static task
static1
Behavioral task
behavioral1
Sample
Audit_XINHAITONG22_1004738_1_2023092210.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
Audit_XINHAITONG22_1004738_1_2023092210.exe
Resource
win10v2004-20231130-en
General
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Target
Audit_XINHAITONG22_1004738_1_2023092210.exe
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Size
857KB
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MD5
64baca6856ba84fe379eb4d720859edc
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SHA1
a234caa5425fcbc4e783dd00722156e533bd6def
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SHA256
ab3eb849490834407657e205832591cfa3c3504ed9373bf53396015d62b9e549
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SHA512
53449f2ed2e397adadb3a48d561c864734961c40392c2f8f3a8ed6c84afd6db8008fc633405a065cc07a51f8396015f7bb8b3b7c1c4cb8aecbbc1a588b5d53db
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SSDEEP
12288:DO5nF8pREGHTbSGWJ7Usocar3S6KMvbPt1w6+BIe4+YnKc5lCzXwPH2gYDMID:Km39s2LwMzPtNPLPe8H6MI
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.issltd.org - Port:
587 - Username:
[email protected] - Password:
iss123 - 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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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
Audit_XINHAITONG22_1004738_1_2023092210.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-423100829-2271632622-1028104103-1000\Control Panel\International\Geo\Nation Audit_XINHAITONG22_1004738_1_2023092210.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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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 6 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Audit_XINHAITONG22_1004738_1_2023092210.exedescription pid process target process PID 4936 set thread context of 5028 4936 Audit_XINHAITONG22_1004738_1_2023092210.exe Audit_XINHAITONG22_1004738_1_2023092210.exe -
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.
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Suspicious behavior: EnumeratesProcesses 7 IoCs
Processes:
Audit_XINHAITONG22_1004738_1_2023092210.exepowershell.exeAudit_XINHAITONG22_1004738_1_2023092210.exepid process 4936 Audit_XINHAITONG22_1004738_1_2023092210.exe 4936 Audit_XINHAITONG22_1004738_1_2023092210.exe 2640 powershell.exe 4936 Audit_XINHAITONG22_1004738_1_2023092210.exe 5028 Audit_XINHAITONG22_1004738_1_2023092210.exe 5028 Audit_XINHAITONG22_1004738_1_2023092210.exe 2640 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
Audit_XINHAITONG22_1004738_1_2023092210.exepowershell.exeAudit_XINHAITONG22_1004738_1_2023092210.exedescription pid process Token: SeDebugPrivilege 4936 Audit_XINHAITONG22_1004738_1_2023092210.exe Token: SeDebugPrivilege 2640 powershell.exe Token: SeDebugPrivilege 5028 Audit_XINHAITONG22_1004738_1_2023092210.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
Audit_XINHAITONG22_1004738_1_2023092210.exedescription pid process target process PID 4936 wrote to memory of 2640 4936 Audit_XINHAITONG22_1004738_1_2023092210.exe powershell.exe PID 4936 wrote to memory of 2640 4936 Audit_XINHAITONG22_1004738_1_2023092210.exe powershell.exe PID 4936 wrote to memory of 2640 4936 Audit_XINHAITONG22_1004738_1_2023092210.exe powershell.exe PID 4936 wrote to memory of 2204 4936 Audit_XINHAITONG22_1004738_1_2023092210.exe schtasks.exe PID 4936 wrote to memory of 2204 4936 Audit_XINHAITONG22_1004738_1_2023092210.exe schtasks.exe PID 4936 wrote to memory of 2204 4936 Audit_XINHAITONG22_1004738_1_2023092210.exe schtasks.exe PID 4936 wrote to memory of 5028 4936 Audit_XINHAITONG22_1004738_1_2023092210.exe Audit_XINHAITONG22_1004738_1_2023092210.exe PID 4936 wrote to memory of 5028 4936 Audit_XINHAITONG22_1004738_1_2023092210.exe Audit_XINHAITONG22_1004738_1_2023092210.exe PID 4936 wrote to memory of 5028 4936 Audit_XINHAITONG22_1004738_1_2023092210.exe Audit_XINHAITONG22_1004738_1_2023092210.exe PID 4936 wrote to memory of 5028 4936 Audit_XINHAITONG22_1004738_1_2023092210.exe Audit_XINHAITONG22_1004738_1_2023092210.exe PID 4936 wrote to memory of 5028 4936 Audit_XINHAITONG22_1004738_1_2023092210.exe Audit_XINHAITONG22_1004738_1_2023092210.exe PID 4936 wrote to memory of 5028 4936 Audit_XINHAITONG22_1004738_1_2023092210.exe Audit_XINHAITONG22_1004738_1_2023092210.exe PID 4936 wrote to memory of 5028 4936 Audit_XINHAITONG22_1004738_1_2023092210.exe Audit_XINHAITONG22_1004738_1_2023092210.exe PID 4936 wrote to memory of 5028 4936 Audit_XINHAITONG22_1004738_1_2023092210.exe Audit_XINHAITONG22_1004738_1_2023092210.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Audit_XINHAITONG22_1004738_1_2023092210.exe"C:\Users\Admin\AppData\Local\Temp\Audit_XINHAITONG22_1004738_1_2023092210.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4936 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\sAyncmK.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2640 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sAyncmK" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8DA9.tmp"2⤵
- Creates scheduled task(s)
PID:2204 -
C:\Users\Admin\AppData\Local\Temp\Audit_XINHAITONG22_1004738_1_2023092210.exe"C:\Users\Admin\AppData\Local\Temp\Audit_XINHAITONG22_1004738_1_2023092210.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5028
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD5a688f5c6479b0a6d97bb0a7122723481
SHA144c4df9b0fa6383edf7bd6b8549dc6b8e29fc0f3
SHA2564241eeb76e5979e90850c6667b335e21b4f256e3abe45f58396b7cd341af72a5
SHA51216baa86220010d152478f29855584a2611aef3b928ea6190cf6b87f93d467c4288ea3ac0bbbdb97197ce20c9459bf178be3c94b1ec7079282c74da3b7c536a22