Analysis
-
max time kernel
145s -
max time network
45s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 00:57
Static task
static1
Behavioral task
behavioral1
Sample
INVOICE_2203320045_xlxs.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
INVOICE_2203320045_xlxs.exe
Resource
win10v2004-20220414-en
General
-
Target
INVOICE_2203320045_xlxs.exe
-
Size
526KB
-
MD5
dd108215d60d63656303ca265f03fade
-
SHA1
4eb98302f26496e020dc62d927555d9ae880fb10
-
SHA256
af27bd7180ad756460e32f2ae56db7cbdc8a79e73a36b261a96f803e5b051fd5
-
SHA512
dfb474ed650e7f56261047a45a938ffcf6653d57f5cc3bb95ae4651af04f31b8056657d1ccf8229caf3af91d387fdc8a411d43833194d7ede6f9a897982e92f2
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.yandex.com - Port:
587 - Username:
[email protected] - Password:
blessing2020
Signatures
-
AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
-
AgentTesla Payload 6 IoCs
Processes:
resource yara_rule behavioral1/memory/1952-61-0x0000000000400000-0x0000000000466000-memory.dmp family_agenttesla behavioral1/memory/1952-62-0x0000000000400000-0x0000000000466000-memory.dmp family_agenttesla behavioral1/memory/1952-64-0x000000000046115E-mapping.dmp family_agenttesla behavioral1/memory/1952-63-0x0000000000400000-0x0000000000466000-memory.dmp family_agenttesla behavioral1/memory/1952-66-0x0000000000400000-0x0000000000466000-memory.dmp family_agenttesla behavioral1/memory/1952-68-0x0000000000400000-0x0000000000466000-memory.dmp family_agenttesla -
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
Processes:
INVOICE_2203320045_xlxs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INVOICE_2203320045_xlxs.exe Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INVOICE_2203320045_xlxs.exe Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INVOICE_2203320045_xlxs.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
INVOICE_2203320045_xlxs.exedescription pid process target process PID 964 set thread context of 1952 964 INVOICE_2203320045_xlxs.exe INVOICE_2203320045_xlxs.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
-
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
INVOICE_2203320045_xlxs.exeINVOICE_2203320045_xlxs.exepid process 964 INVOICE_2203320045_xlxs.exe 964 INVOICE_2203320045_xlxs.exe 964 INVOICE_2203320045_xlxs.exe 1952 INVOICE_2203320045_xlxs.exe 1952 INVOICE_2203320045_xlxs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
INVOICE_2203320045_xlxs.exeINVOICE_2203320045_xlxs.exedescription pid process Token: SeDebugPrivilege 964 INVOICE_2203320045_xlxs.exe Token: SeDebugPrivilege 1952 INVOICE_2203320045_xlxs.exe -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
INVOICE_2203320045_xlxs.exedescription pid process target process PID 964 wrote to memory of 1820 964 INVOICE_2203320045_xlxs.exe schtasks.exe PID 964 wrote to memory of 1820 964 INVOICE_2203320045_xlxs.exe schtasks.exe PID 964 wrote to memory of 1820 964 INVOICE_2203320045_xlxs.exe schtasks.exe PID 964 wrote to memory of 1820 964 INVOICE_2203320045_xlxs.exe schtasks.exe PID 964 wrote to memory of 1952 964 INVOICE_2203320045_xlxs.exe INVOICE_2203320045_xlxs.exe PID 964 wrote to memory of 1952 964 INVOICE_2203320045_xlxs.exe INVOICE_2203320045_xlxs.exe PID 964 wrote to memory of 1952 964 INVOICE_2203320045_xlxs.exe INVOICE_2203320045_xlxs.exe PID 964 wrote to memory of 1952 964 INVOICE_2203320045_xlxs.exe INVOICE_2203320045_xlxs.exe PID 964 wrote to memory of 1952 964 INVOICE_2203320045_xlxs.exe INVOICE_2203320045_xlxs.exe PID 964 wrote to memory of 1952 964 INVOICE_2203320045_xlxs.exe INVOICE_2203320045_xlxs.exe PID 964 wrote to memory of 1952 964 INVOICE_2203320045_xlxs.exe INVOICE_2203320045_xlxs.exe PID 964 wrote to memory of 1952 964 INVOICE_2203320045_xlxs.exe INVOICE_2203320045_xlxs.exe PID 964 wrote to memory of 1952 964 INVOICE_2203320045_xlxs.exe INVOICE_2203320045_xlxs.exe -
outlook_office_path 1 IoCs
Processes:
INVOICE_2203320045_xlxs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INVOICE_2203320045_xlxs.exe -
outlook_win_path 1 IoCs
Processes:
INVOICE_2203320045_xlxs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INVOICE_2203320045_xlxs.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\INVOICE_2203320045_xlxs.exe"C:\Users\Admin\AppData\Local\Temp\INVOICE_2203320045_xlxs.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KtYjgOHP" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2BB3.tmp"2⤵
- Creates scheduled task(s)
-
C:\Users\Admin\AppData\Local\Temp\INVOICE_2203320045_xlxs.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\tmp2BB3.tmpFilesize
1KB
MD59bd5a07a03db3cca4e0be7137d4a381d
SHA14be1307bfcc87918f44e72814790ab49dfab727e
SHA2569a8387add96c6ba4a0b1bb497ad5efbad4dbfffbf3304563cc3726e21bc1ad47
SHA512d5edc0b04aea7e851f7b0516125cc822ae45e4afda919ee0c6bdcfbaa18aba65458be109749046484bbdf49727283712382dc35e9dea4093bfffdda72f76bde3
-
memory/964-54-0x00000000751C1000-0x00000000751C3000-memory.dmpFilesize
8KB
-
memory/964-55-0x00000000743A0000-0x000000007494B000-memory.dmpFilesize
5.7MB
-
memory/1820-56-0x0000000000000000-mapping.dmp
-
memory/1952-61-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB
-
memory/1952-59-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB
-
memory/1952-58-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB
-
memory/1952-62-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB
-
memory/1952-64-0x000000000046115E-mapping.dmp
-
memory/1952-63-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB
-
memory/1952-66-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB
-
memory/1952-68-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB
-
memory/1952-70-0x00000000743A0000-0x000000007494B000-memory.dmpFilesize
5.7MB