agenttesla | 049cf1a5c3ecd74b4de986216d1a8b9d10a21be4a1cd46db0a018679ae6423bb

General

Target

excel doc spec.scr
Size

834KB
MD5

4dc022310f86d0f94a74d8c0a7e7c58a
SHA1

e809aa0cfcc7d387bc4451015a751e685b1ddf7e
SHA256

92605cf78b7b975754a9defe3570dc6b30917fdfbc0d62f601145c28930c21f2
SHA512

e5da3f734a56435b815728353b5391358fad11752493a13c0b4aa21419a7f3de244b849986aa70b17be84699523767b822e2d502f3b376586e791663fcdb0a53

Score

10^/10

agenttesla agilenet collection keylogger spyware stealer trojan

Malware Config

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

AgentTesla Payload 8 IoCs

Processes:

resource	yara_rule
behavioral3/memory/1104-54-0x0000000000CD0000-0x0000000000DA6000-memory.dmp	family_agenttesla
behavioral3/memory/1056-63-0x0000000000090000-0x00000000000E2000-memory.dmp	family_agenttesla
behavioral3/memory/1056-64-0x0000000000090000-0x00000000000E2000-memory.dmp	family_agenttesla
behavioral3/memory/1056-66-0x000000000044CD5E-mapping.dmp	family_agenttesla
behavioral3/memory/1056-68-0x0000000000090000-0x00000000000E2000-memory.dmp	family_agenttesla
behavioral3/memory/1056-69-0x0000000000090000-0x00000000000E2000-memory.dmp	family_agenttesla
behavioral3/memory/1056-73-0x0000000000090000-0x00000000000E2000-memory.dmp	family_agenttesla
behavioral3/memory/1056-76-0x0000000000090000-0x00000000000E2000-memory.dmp	family_agenttesla

Executes dropped EXE 1 IoCs

Processes:

RegAsm.exe

pid process

1056 RegAsm.exe
Loads dropped DLL 2 IoCs

Processes:

excel doc spec.scrRegAsm.exe

pid process

1104 excel doc spec.scr
1056 RegAsm.exe

pid	process
1056	RegAsm.exe

pid	process
1104	excel doc spec.scr
1056	RegAsm.exe

Obfuscated with Agile.Net obfuscator 1 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

Processes:

resource	yara_rule
behavioral3/memory/1104-55-0x00000000002F0000-0x0000000000304000-memory.dmp	agile_net

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

excel doc spec.scr

description pid process target process

PID 1104 set thread context of 1056 1104 excel doc spec.scr RegAsm.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

excel doc spec.scrRegAsm.exe

pid process

1104 excel doc spec.scr
1104 excel doc spec.scr
1104 excel doc spec.scr
1056 RegAsm.exe
1056 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

excel doc spec.scrRegAsm.exe

description pid process

Token: SeDebugPrivilege 1104 excel doc spec.scr
Token: SeDebugPrivilege 1056 RegAsm.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegAsm.exe

pid process

1056 RegAsm.exe

description	pid	process	target process
PID 1104 set thread context of 1056	1104	excel doc spec.scr	RegAsm.exe

pid	process
1104	excel doc spec.scr
1104	excel doc spec.scr
1104	excel doc spec.scr
1056	RegAsm.exe
1056	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	1104	excel doc spec.scr
Token: SeDebugPrivilege	1056	RegAsm.exe

pid	process
1056	RegAsm.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

excel doc spec.scrRegAsm.exe

description	pid	process	target process
PID 1104 wrote to memory of 1056	1104	excel doc spec.scr	RegAsm.exe
PID 1104 wrote to memory of 1056	1104	excel doc spec.scr	RegAsm.exe
PID 1104 wrote to memory of 1056	1104	excel doc spec.scr	RegAsm.exe
PID 1104 wrote to memory of 1056	1104	excel doc spec.scr	RegAsm.exe
PID 1104 wrote to memory of 1056	1104	excel doc spec.scr	RegAsm.exe
PID 1104 wrote to memory of 1056	1104	excel doc spec.scr	RegAsm.exe
PID 1104 wrote to memory of 1056	1104	excel doc spec.scr	RegAsm.exe
PID 1104 wrote to memory of 1056	1104	excel doc spec.scr	RegAsm.exe
PID 1104 wrote to memory of 1056	1104	excel doc spec.scr	RegAsm.exe
PID 1104 wrote to memory of 1056	1104	excel doc spec.scr	RegAsm.exe
PID 1104 wrote to memory of 1056	1104	excel doc spec.scr	RegAsm.exe
PID 1104 wrote to memory of 1056	1104	excel doc spec.scr	RegAsm.exe
PID 1056 wrote to memory of 364	1056	RegAsm.exe	netsh.exe
PID 1056 wrote to memory of 364	1056	RegAsm.exe	netsh.exe
PID 1056 wrote to memory of 364	1056	RegAsm.exe	netsh.exe
PID 1056 wrote to memory of 364	1056	RegAsm.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

Processes:

RegAsm.exe

description	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	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\excel doc spec.scr
"C:\Users\Admin\AppData\Local\Temp\excel doc spec.scr" /S
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1104

C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
"C:\Users\Admin\AppData\Local\Temp\RegAsm.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1056

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:364

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
Filesize
63KB

MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

Download Submit
C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
Filesize
63KB

MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

Download Submit
\Users\Admin\AppData\Local\Temp\RegAsm.exe
Filesize
63KB

MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

Download Submit
\Users\Admin\AppData\Local\Temp\RegAsm.exe
Filesize
63KB

MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

Download Submit
memory/364-80-0x0000000000000000-mapping.dmp

Download
memory/1056-66-0x000000000044CD5E-mapping.dmp

Download
memory/1056-68-0x0000000000090000-0x00000000000E2000-memory.dmp

Filesize
328KB

Download
memory/1056-61-0x0000000000090000-0x00000000000E2000-memory.dmp

Filesize
328KB

Download
memory/1056-63-0x0000000000090000-0x00000000000E2000-memory.dmp

Filesize
328KB

Download
memory/1056-64-0x0000000000090000-0x00000000000E2000-memory.dmp

Filesize
328KB

Download
memory/1056-78-0x0000000075951000-0x0000000075953000-memory.dmp

Filesize
8KB

Download
memory/1056-76-0x0000000000090000-0x00000000000E2000-memory.dmp

Filesize
328KB

Download
memory/1056-60-0x0000000000090000-0x00000000000E2000-memory.dmp

Filesize
328KB

Download
memory/1056-69-0x0000000000090000-0x00000000000E2000-memory.dmp

Filesize
328KB

Download
memory/1056-73-0x0000000000090000-0x00000000000E2000-memory.dmp

Filesize
328KB

Download
memory/1104-58-0x0000000000410000-0x0000000000418000-memory.dmp

Filesize
32KB

Download
memory/1104-57-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/1104-54-0x0000000000CD0000-0x0000000000DA6000-memory.dmp

Filesize
856KB

Download
memory/1104-56-0x0000000000390000-0x0000000000398000-memory.dmp

Filesize
32KB

Download
memory/1104-55-0x00000000002F0000-0x0000000000304000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads