Analysis
-
max time kernel
148s -
max time network
149s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
20-04-2021 14:10
Static task
static1
Behavioral task
behavioral1
Sample
Invoice.exe
Resource
win7v20210410
Behavioral task
behavioral2
Sample
Invoice.exe
Resource
win10v20210410
General
-
Target
Invoice.exe
-
Size
983KB
-
MD5
e6fccd33c9b592039b1b9e68c75c40ed
-
SHA1
dfa11bca779649b45aade346a9115dbae8205274
-
SHA256
16371a4c00dcbafa63e93f577306b41caa10d8a567678a7bb3ed54ae1b4cd993
-
SHA512
281d5a763fa808ae1a14d8017190a6b734fc825df92d0d23b2c200e833e59bde48f685da1c4c27d7224ac334e836d1746f3c7c3b9166de5d1bc3e3ddd483271d
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.lallyautomobiles.net - Port:
587 - Username:
servicekrl@lallyautomobiles.net - Password:
Welcome@2021
Signatures
-
AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
-
AgentTesla Payload 3 IoCs
Processes:
resource yara_rule behavioral2/memory/412-124-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral2/memory/412-125-0x000000000043762E-mapping.dmp family_agenttesla behavioral2/memory/412-131-0x0000000004EA0000-0x000000000539E000-memory.dmp family_agenttesla -
Drops file in Drivers directory 1 IoCs
Processes:
Invoice.exedescription ioc process File opened for modification C:\Windows\system32\drivers\etc\hosts Invoice.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.
-
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
Invoice.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\kprUEGC = "C:\\Users\\Admin\\AppData\\Roaming\\kprUEGC\\kprUEGC.exe" Invoice.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Invoice.exedescription pid process target process PID 3680 set thread context of 412 3680 Invoice.exe Invoice.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
Invoice.exepid process 412 Invoice.exe 412 Invoice.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Invoice.exedescription pid process Token: SeDebugPrivilege 412 Invoice.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Invoice.exepid process 412 Invoice.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
Invoice.exedescription pid process target process PID 3680 wrote to memory of 412 3680 Invoice.exe Invoice.exe PID 3680 wrote to memory of 412 3680 Invoice.exe Invoice.exe PID 3680 wrote to memory of 412 3680 Invoice.exe Invoice.exe PID 3680 wrote to memory of 412 3680 Invoice.exe Invoice.exe PID 3680 wrote to memory of 412 3680 Invoice.exe Invoice.exe PID 3680 wrote to memory of 412 3680 Invoice.exe Invoice.exe PID 3680 wrote to memory of 412 3680 Invoice.exe Invoice.exe PID 3680 wrote to memory of 412 3680 Invoice.exe Invoice.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\Invoice.exe"C:\Users\Admin\AppData\Local\Temp\Invoice.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Invoice.exe"{path}"2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Invoice.exe.logMD5
0c2899d7c6746f42d5bbe088c777f94c
SHA1622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1
SHA2565b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458
SHA512ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078
-
memory/412-124-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
-
memory/412-133-0x0000000005C20000-0x0000000005C21000-memory.dmpFilesize
4KB
-
memory/412-132-0x0000000005B90000-0x0000000005B91000-memory.dmpFilesize
4KB
-
memory/412-131-0x0000000004EA0000-0x000000000539E000-memory.dmpFilesize
5.0MB
-
memory/412-125-0x000000000043762E-mapping.dmp
-
memory/3680-118-0x0000000007920000-0x0000000007921000-memory.dmpFilesize
4KB
-
memory/3680-122-0x000000000B050000-0x000000000B0F5000-memory.dmpFilesize
660KB
-
memory/3680-123-0x00000000075A0000-0x0000000007604000-memory.dmpFilesize
400KB
-
memory/3680-121-0x00000000095C0000-0x00000000095C1000-memory.dmpFilesize
4KB
-
memory/3680-120-0x0000000004F20000-0x0000000004F25000-memory.dmpFilesize
20KB
-
memory/3680-119-0x0000000005480000-0x0000000005481000-memory.dmpFilesize
4KB
-
memory/3680-114-0x0000000000B10000-0x0000000000B11000-memory.dmpFilesize
4KB
-
memory/3680-117-0x00000000079C0000-0x00000000079C1000-memory.dmpFilesize
4KB
-
memory/3680-116-0x0000000007E20000-0x0000000007E21000-memory.dmpFilesize
4KB