agenttesla | e654eb888cf345f65b8363a808a86111d1c0bfeee51a78b0d0c756a7f3bd4c0c

Analysis

max time kernel
131s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-en-20220113
submitted
31/03/2022, 09:27

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
24f92a7026c840f4a49363015754f58b.exe
Size 423KB
Sample220331-leqzdahfe8
SHA256 e654eb888cf345f65b8363a808a86111d1c0bfeee51a78b0d0c756a7f3bd4c0c
MD5 24f92a7026c840f4a49363015754f58b
SHA1 5c0b7d1c758cdfddcec810c429e98be0d01c2980
SHA512 03d1f001ebf907576346f8207823cd283920ff24b804ed65c4437eb22d1bf1adf88a3f6ff360ef30bc6fea68a3b23bceb0d8bb13d097f3202d7f991e72ae51ac
MD5 SHA1 SHA512

Score

10^/10

agenttesla 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 3 IoCs

resource	yara_rule
behavioral2/memory/3804-136-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral2/memory/3804-138-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral2/memory/3804-139-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Executes dropped EXE 2 IoCs

pid	Process
816	nvsjnclhoy.exe
3804	nvsjnclhoy.exe

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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	nvsjnclhoy.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	nvsjnclhoy.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	nvsjnclhoy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 816 set thread context of 3804	816	nvsjnclhoy.exe	81

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3804	nvsjnclhoy.exe
3804	nvsjnclhoy.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3804	nvsjnclhoy.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4092 wrote to memory of 816	4092	24f92a7026c840f4a49363015754f58b.exe	80
PID 4092 wrote to memory of 816	4092	24f92a7026c840f4a49363015754f58b.exe	80
PID 4092 wrote to memory of 816	4092	24f92a7026c840f4a49363015754f58b.exe	80
PID 816 wrote to memory of 3804	816	nvsjnclhoy.exe	81
PID 816 wrote to memory of 3804	816	nvsjnclhoy.exe	81
PID 816 wrote to memory of 3804	816	nvsjnclhoy.exe	81
PID 816 wrote to memory of 3804	816	nvsjnclhoy.exe	81
PID 816 wrote to memory of 3804	816	nvsjnclhoy.exe	81
PID 816 wrote to memory of 3804	816	nvsjnclhoy.exe	81
PID 816 wrote to memory of 3804	816	nvsjnclhoy.exe	81
PID 816 wrote to memory of 3804	816	nvsjnclhoy.exe	81
PID 816 wrote to memory of 3804	816	nvsjnclhoy.exe	81
PID 816 wrote to memory of 3804	816	nvsjnclhoy.exe	81

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	nvsjnclhoy.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	nvsjnclhoy.exe

C:\Users\Admin\AppData\Local\Temp\24f92a7026c840f4a49363015754f58b.exe
"C:\Users\Admin\AppData\Local\Temp\24f92a7026c840f4a49363015754f58b.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4092
- C:\Users\Admin\AppData\Local\Temp\nvsjnclhoy.exe
  C:\Users\Admin\AppData\Local\Temp\nvsjnclhoy.exe C:\Users\Admin\AppData\Local\Temp\mtearcs
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:816
- - C:\Users\Admin\AppData\Local\Temp\nvsjnclhoy.exe
    C:\Users\Admin\AppData\Local\Temp\nvsjnclhoy.exe C:\Users\Admin\AppData\Local\Temp\mtearcs
    3⤵
    - Executes dropped EXE
    - Accesses Microsoft Outlook profiles
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:3804

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

1msdgybh5iu

Path C:\Users\Admin\AppData\Local\Temp\1msdgybh5iu
Size 285KB
SHA256 fecb43568e25bdf49e9fe2864b152b666154ca05afbab14b642827c953d2caa9
MD5 8b3a12807c6f04811401b007411ff963
SHA1 3025c8fd7cb6ccca567f9a32587d08677a2dd5f3
SHA512 ffa5f0302fbb89af2cce096b03ca39ae4b0e69f5cd5cc0e81eec35554136441253ab1c9d1207eccf32002df8f786f910a74bc6f4b23f13df0d9de7aed20481ce
MD5 SHA1 SHA512

Submit Download

mtearcs

Path C:\Users\Admin\AppData\Local\Temp\mtearcs
Size 4KB
SHA256 e504ebc1dd63d8fd352bab1c119fac0fd9561e5a80f3fd287177fea68c2f4f7d
MD5 6698d1dbe49a4837f7d5a78a88c269d6
SHA1 34aeb43f571d1241c6c376abd1d441493b018a1f
SHA512 0736066a2a793149cf8d8bc43fa8915116f0f212d2e30538c65825f3b0dbd952cf844b897d5f0c5b78bed0e8b41ae8ace5708a14ad842ff029869326457044c2
MD5 SHA1 SHA512

Submit Download

nvsjnclhoy.exe

Path C:\Users\Admin\AppData\Local\Temp\nvsjnclhoy.exe
Size 4KB
SHA256 042c15193c3ac5c5684c90b984f327528f708c0395806ce9c644f3c9916409a7
MD5 c13b27a0db37730a5218ed197f190a54
SHA1 6be70e01d3ed564d393c3c9e81592296ae7f78b1
SHA512 bda535024f0831b7ba78121b07866c17167a85cfa860a52f3d8fedc33a355dcc0869d20f65beef3bd998c64441d96a40e97fc77c5bf42ec842feb554e002a9d8
MD5 SHA1 SHA512

Submit Download

nvsjnclhoy.exe

Path C:\Users\Admin\AppData\Local\Temp\nvsjnclhoy.exe
Size 4KB
SHA256 042c15193c3ac5c5684c90b984f327528f708c0395806ce9c644f3c9916409a7
MD5 c13b27a0db37730a5218ed197f190a54
SHA1 6be70e01d3ed564d393c3c9e81592296ae7f78b1
SHA512 bda535024f0831b7ba78121b07866c17167a85cfa860a52f3d8fedc33a355dcc0869d20f65beef3bd998c64441d96a40e97fc77c5bf42ec842feb554e002a9d8
MD5 SHA1 SHA512

Submit Download

nvsjnclhoy.exe

Path C:\Users\Admin\AppData\Local\Temp\nvsjnclhoy.exe
Size 4KB
SHA256 042c15193c3ac5c5684c90b984f327528f708c0395806ce9c644f3c9916409a7
MD5 c13b27a0db37730a5218ed197f190a54
SHA1 6be70e01d3ed564d393c3c9e81592296ae7f78b1
SHA512 bda535024f0831b7ba78121b07866c17167a85cfa860a52f3d8fedc33a355dcc0869d20f65beef3bd998c64441d96a40e97fc77c5bf42ec842feb554e002a9d8
MD5 SHA1 SHA512

Submit Download

memory/3804-136-0x0000000000400000-0x000000000044C000-memory.dmp

Download

memory/3804-138-0x0000000000400000-0x000000000044C000-memory.dmp

Download

memory/3804-139-0x0000000000400000-0x000000000044C000-memory.dmp

Download

memory/3804-140-0x0000000005990000-0x0000000005F34000-memory.dmp

Download

memory/3804-141-0x0000000005480000-0x0000000005512000-memory.dmp

Download

memory/3804-142-0x0000000005690000-0x000000000572C000-memory.dmp

Download

memory/3804-143-0x0000000006630000-0x0000000006696000-memory.dmp

Download

memory/3804-144-0x0000000006730000-0x0000000006780000-memory.dmp

Download

memory/3804-145-0x0000000000ED0000-0x0000000000EDA000-memory.dmp

Download