Analysis
-
max time kernel
141s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
29/12/2023, 20:35
Static task
static1
Behavioral task
behavioral1
Sample
034b8ed08edfa130c4753550d7aea9bd.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
034b8ed08edfa130c4753550d7aea9bd.exe
Resource
win10v2004-20231215-en
General
-
Target
034b8ed08edfa130c4753550d7aea9bd.exe
-
Size
796KB
-
MD5
034b8ed08edfa130c4753550d7aea9bd
-
SHA1
7efd865efe47e8f2665cf5bdc4556be769ea998f
-
SHA256
da2583a529827b15b05b18370fe5f8bab878fdd0c78e4fde91e2e5c5b476930f
-
SHA512
52aa0c025d57399f0024d792918da946b87371b62519e1ef0e7098cc68fddb27bb6c312eccccf246fe2079584b61b2bec7d3ef6f4ce021a4042db9e7485b1368
-
SSDEEP
24576:CvrroA8+PzWh7/wAUEcgGtOz23v9MNjd:wr4+qh//4Oz2/Kh
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.spamora.net - Port:
587 - Username:
[email protected] - Password:
Emotion22
Signatures
-
AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
-
AgentTesla payload 1 IoCs
resource yara_rule behavioral2/memory/4516-17-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla -
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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation 034b8ed08edfa130c4753550d7aea9bd.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
-
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
-
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 034b8ed08edfa130c4753550d7aea9bd.exe Key opened \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 034b8ed08edfa130c4753550d7aea9bd.exe Key opened \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 034b8ed08edfa130c4753550d7aea9bd.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MLdAu = "C:\\Users\\Admin\\AppData\\Roaming\\MLdAu\\MLdAu.exe" 034b8ed08edfa130c4753550d7aea9bd.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 208 set thread context of 4516 208 034b8ed08edfa130c4753550d7aea9bd.exe 101 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2416 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 208 034b8ed08edfa130c4753550d7aea9bd.exe 4516 034b8ed08edfa130c4753550d7aea9bd.exe 4516 034b8ed08edfa130c4753550d7aea9bd.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 208 034b8ed08edfa130c4753550d7aea9bd.exe Token: SeDebugPrivilege 4516 034b8ed08edfa130c4753550d7aea9bd.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4516 034b8ed08edfa130c4753550d7aea9bd.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 208 wrote to memory of 2416 208 034b8ed08edfa130c4753550d7aea9bd.exe 103 PID 208 wrote to memory of 2416 208 034b8ed08edfa130c4753550d7aea9bd.exe 103 PID 208 wrote to memory of 2416 208 034b8ed08edfa130c4753550d7aea9bd.exe 103 PID 208 wrote to memory of 4516 208 034b8ed08edfa130c4753550d7aea9bd.exe 101 PID 208 wrote to memory of 4516 208 034b8ed08edfa130c4753550d7aea9bd.exe 101 PID 208 wrote to memory of 4516 208 034b8ed08edfa130c4753550d7aea9bd.exe 101 PID 208 wrote to memory of 4516 208 034b8ed08edfa130c4753550d7aea9bd.exe 101 PID 208 wrote to memory of 4516 208 034b8ed08edfa130c4753550d7aea9bd.exe 101 PID 208 wrote to memory of 4516 208 034b8ed08edfa130c4753550d7aea9bd.exe 101 PID 208 wrote to memory of 4516 208 034b8ed08edfa130c4753550d7aea9bd.exe 101 PID 208 wrote to memory of 4516 208 034b8ed08edfa130c4753550d7aea9bd.exe 101 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 034b8ed08edfa130c4753550d7aea9bd.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 034b8ed08edfa130c4753550d7aea9bd.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\034b8ed08edfa130c4753550d7aea9bd.exe"C:\Users\Admin\AppData\Local\Temp\034b8ed08edfa130c4753550d7aea9bd.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:208 -
C:\Users\Admin\AppData\Local\Temp\034b8ed08edfa130c4753550d7aea9bd.exe"C:\Users\Admin\AppData\Local\Temp\034b8ed08edfa130c4753550d7aea9bd.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:4516
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mdwSETuWz" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF656.tmp"2⤵
- Creates scheduled task(s)
PID:2416
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
384KB
MD5f6590a14cc4d2ca5d9019511772efc4e
SHA1b061b9894ea9e40b2a2f5aa8998c18409d0d3ddf
SHA2565f1859441c822b008f7f5e1c84417a6b81544cb62c2686f17d64f85b6e759616
SHA51214eb170789c2478a900481636e8bcb5d5b81c8f7f77ecf8f8f69a14a35978c30dfa4f88cf33a38e281c5195e5302ebe2e17e395c36e379a169fb03ed831badf2