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Analysis
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max time kernel
114s -
max time network
139s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
15/04/2024, 13:21
Static task
static1
Behavioral task
behavioral1
Sample
ungziped_file.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
ungziped_file.exe
Resource
win10v2004-20240412-en
General
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Target
ungziped_file.exe
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Size
749KB
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MD5
2cb429d144a84ae31ac8ecf48fa862fb
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SHA1
379f1f62d047fa603ea0b933b526ed8ce9388be9
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SHA256
2c06313c7db4b165b18717a7998239c5e64a9ddfbd7f3b57fc5cc11a973ac07f
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SHA512
07dcce7087439d49084786eb54a98a898e4764c69d1850a5a0e7b72cd73f27408ffec7089e4730c680cf8e4b3b7fbc44981dfacad6d449ec785c32504d2b7d9f
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SSDEEP
12288:FayNBwyr2HPWyd3eOC6hcO+JeQB9B279Avons1puKUoeRSs39:IyNCyrePWceOC6P8v844oer9
Malware Config
Extracted
Protocol: smtp- Host:
mail.leema.lk - Port:
587 - Username:
[email protected] - Password:
V[3ALIg~jl}T
Extracted
agenttesla
Protocol: smtp- Host:
mail.leema.lk - Port:
587 - Username:
[email protected] - Password:
V[3ALIg~jl}T - 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.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\Control Panel\International\Geo\Nation ungziped_file.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 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 27 api.ipify.org 28 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2964 set thread context of 4020 2964 ungziped_file.exe 101 -
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.
pid Process 4904 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 2964 ungziped_file.exe 2964 ungziped_file.exe 2964 ungziped_file.exe 2964 ungziped_file.exe 3384 powershell.exe 4020 ungziped_file.exe 4020 ungziped_file.exe 3384 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2964 ungziped_file.exe Token: SeDebugPrivilege 3384 powershell.exe Token: SeDebugPrivilege 4020 ungziped_file.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 2964 wrote to memory of 3384 2964 ungziped_file.exe 95 PID 2964 wrote to memory of 3384 2964 ungziped_file.exe 95 PID 2964 wrote to memory of 3384 2964 ungziped_file.exe 95 PID 2964 wrote to memory of 4904 2964 ungziped_file.exe 97 PID 2964 wrote to memory of 4904 2964 ungziped_file.exe 97 PID 2964 wrote to memory of 4904 2964 ungziped_file.exe 97 PID 2964 wrote to memory of 3144 2964 ungziped_file.exe 99 PID 2964 wrote to memory of 3144 2964 ungziped_file.exe 99 PID 2964 wrote to memory of 3144 2964 ungziped_file.exe 99 PID 2964 wrote to memory of 4492 2964 ungziped_file.exe 100 PID 2964 wrote to memory of 4492 2964 ungziped_file.exe 100 PID 2964 wrote to memory of 4492 2964 ungziped_file.exe 100 PID 2964 wrote to memory of 4020 2964 ungziped_file.exe 101 PID 2964 wrote to memory of 4020 2964 ungziped_file.exe 101 PID 2964 wrote to memory of 4020 2964 ungziped_file.exe 101 PID 2964 wrote to memory of 4020 2964 ungziped_file.exe 101 PID 2964 wrote to memory of 4020 2964 ungziped_file.exe 101 PID 2964 wrote to memory of 4020 2964 ungziped_file.exe 101 PID 2964 wrote to memory of 4020 2964 ungziped_file.exe 101 PID 2964 wrote to memory of 4020 2964 ungziped_file.exe 101
Processes
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C:\Users\Admin\AppData\Local\Temp\ungziped_file.exe"C:\Users\Admin\AppData\Local\Temp\ungziped_file.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2964 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\xIKNTJWHvijOQ.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3384
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xIKNTJWHvijOQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF165.tmp"2⤵
- Creates scheduled task(s)
PID:4904
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C:\Users\Admin\AppData\Local\Temp\ungziped_file.exe"C:\Users\Admin\AppData\Local\Temp\ungziped_file.exe"2⤵PID:3144
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C:\Users\Admin\AppData\Local\Temp\ungziped_file.exe"C:\Users\Admin\AppData\Local\Temp\ungziped_file.exe"2⤵PID:4492
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C:\Users\Admin\AppData\Local\Temp\ungziped_file.exe"C:\Users\Admin\AppData\Local\Temp\ungziped_file.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4020
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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
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Filesize
1KB
MD562b92b0f0457f7abd6c1070560f1b07f
SHA1f079430eb54908d2e610864ca53c1c5b5096875f
SHA2565d10679877ab37e1ce3e3e8c865e3e0ccb407caf615f6853a747ab00afa83419
SHA512b6704c0e3d76888de3e4f5c5917489ad580d81ee1ade4180e6511e468914b4cda77b4977c707488fc3bb9713678b9437d705d082975197a4b29220214780c169