Analysis
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max time kernel
103s -
max time network
105s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
08-04-2024 01:21
Static task
static1
Behavioral task
behavioral1
Sample
57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe
Resource
win7-20240221-en
General
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Target
57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe
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Size
793KB
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MD5
6d8956d9cae243960df063e4f013e9fe
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SHA1
76cb0d216284c376673b1884a97c62607707b0d2
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SHA256
57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454
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SHA512
0a38fc3b769b1f483c25f9c7541e3de3312bcdc11c5d4fd682daa5eea6f88cea7569c99c3fb8efac29ce28fffa83d6d8ac0deb4ccb1a2bc75fb24b3b07003afa
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SSDEEP
12288:OcfTKzwegGpILkDg2FXUQZrQXmTRJ286yiDrs6+xTxJmM+TgkWNS7IFvUrE:OsIwegGpQkPFwu68pi86+xTx0M6g0u+E
Malware Config
Extracted
Protocol: ftp- Host:
ftp.ercolina-usa.com - Port:
21 - Username:
[email protected] - Password:
1.$.#t~cK;4C
Extracted
agenttesla
Protocol: ftp- Host:
ftp://ftp.ercolina-usa.com - Port:
21 - Username:
[email protected] - Password:
1.$.#t~cK;4C
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Processes:
57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exedescription ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe -
Processes:
57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exedescription ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths 57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe = "0" 57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation 57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe -
Processes:
57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exedescription ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths 57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions 57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe = "0" 57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe -
Processes:
57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exedescription ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 14 api.ipify.org 16 ip-api.com 13 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exedescription pid Process procid_target PID 4296 set thread context of 2148 4296 57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe 87 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
powershell.exeregsvcs.exepid Process 4656 powershell.exe 4656 powershell.exe 2148 regsvcs.exe 2148 regsvcs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
powershell.exeregsvcs.exedescription pid Process Token: SeDebugPrivilege 4656 powershell.exe Token: SeDebugPrivilege 2148 regsvcs.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
regsvcs.exepid Process 2148 regsvcs.exe -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exedescription pid Process procid_target PID 4296 wrote to memory of 4656 4296 57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe 86 PID 4296 wrote to memory of 4656 4296 57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe 86 PID 4296 wrote to memory of 2148 4296 57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe 87 PID 4296 wrote to memory of 2148 4296 57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe 87 PID 4296 wrote to memory of 2148 4296 57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe 87 PID 4296 wrote to memory of 2148 4296 57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe 87 PID 4296 wrote to memory of 2148 4296 57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe 87 PID 4296 wrote to memory of 2148 4296 57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe 87 PID 4296 wrote to memory of 2148 4296 57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe 87 PID 4296 wrote to memory of 2148 4296 57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe 87 -
System policy modification 1 TTPs 1 IoCs
Processes:
57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exedescription ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe"C:\Users\Admin\AppData\Local\Temp\57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe"1⤵
- UAC bypass
- Windows security bypass
- Checks computer location settings
- Windows security modification
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- System policy modification
PID:4296 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\57b54ea24888c5b1f00e11ab3d233d39b1d916d39c44358de01b1e882a5fd454.exe" -Force2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4656
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2148
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82