agenttesla | b8568ef8c461f57be0df8d02e0488a5dbd9d2a7557c8d657e3978f138cbb7cdf

General

Target

b8568ef8c461f57be0df8d02e0488a5dbd9d2a7557c8d657e3978f138cbb7cdf.exe
Size

1.1MB
MD5

09b0ff1242fe63cb0fd7b07c90e69362
SHA1

f022f88791a64ee203db2f9c3c59baeb1353bb66
SHA256

b8568ef8c461f57be0df8d02e0488a5dbd9d2a7557c8d657e3978f138cbb7cdf
SHA512

2204a7d336f02cc21a7e81e1b02eaf499ef68d5ae4f6915943578aeb3adbccd9801014a28f28fad92fa70651c8baeb66206023ebe03ad04c9d70f9e5802a9d00
SSDEEP

24576:ZqMSN1FCQa9kiMietnN3/vAzfJooWa4xCyQg+nJ8V869/t5:Zq3N1FCQa9kiMienvIzT4x0g+Ett

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.brusln.com
Port:
587
Username:
[email protected]
Password:
Epic@2024

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.brusln.com
Port:
587
Username:
[email protected]
Password:
Epic@2024
Email To:
[email protected]

Signatures

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

Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs

resource	yara_rule
behavioral2/memory/2232-11-0x0000000000400000-0x0000000000444000-memory.dmp	INDICATOR_EXE_Packed_GEN01

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs

resource	yara_rule
behavioral2/memory/2232-11-0x0000000000400000-0x0000000000444000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs

resource	yara_rule
behavioral2/memory/2232-11-0x0000000000400000-0x0000000000444000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs

resource	yara_rule
behavioral2/memory/2232-11-0x0000000000400000-0x0000000000444000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs

resource	yara_rule
behavioral2/memory/2232-11-0x0000000000400000-0x0000000000444000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs

resource	yara_rule
behavioral2/memory/2232-11-0x0000000000400000-0x0000000000444000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
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
T1552.001
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
T1552.001
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
T1552.001

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\plQRn123nu17 = "C:\\Users\\Admin\\AppData\\Roaming\\plQRn123nu17\\plQRn123nu17.exe"	b8568ef8c461f57be0df8d02e0488a5dbd9d2a7557c8d657e3978f138cbb7cdf.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
68	api.ipify.org
69	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 264 set thread context of 2232	264	b8568ef8c461f57be0df8d02e0488a5dbd9d2a7557c8d657e3978f138cbb7cdf.exe	100

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2232	b8568ef8c461f57be0df8d02e0488a5dbd9d2a7557c8d657e3978f138cbb7cdf.exe
2232	b8568ef8c461f57be0df8d02e0488a5dbd9d2a7557c8d657e3978f138cbb7cdf.exe
2232	b8568ef8c461f57be0df8d02e0488a5dbd9d2a7557c8d657e3978f138cbb7cdf.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2232	b8568ef8c461f57be0df8d02e0488a5dbd9d2a7557c8d657e3978f138cbb7cdf.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2232	b8568ef8c461f57be0df8d02e0488a5dbd9d2a7557c8d657e3978f138cbb7cdf.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 264 wrote to memory of 2232	264	b8568ef8c461f57be0df8d02e0488a5dbd9d2a7557c8d657e3978f138cbb7cdf.exe	100
PID 264 wrote to memory of 2232	264	b8568ef8c461f57be0df8d02e0488a5dbd9d2a7557c8d657e3978f138cbb7cdf.exe	100
PID 264 wrote to memory of 2232	264	b8568ef8c461f57be0df8d02e0488a5dbd9d2a7557c8d657e3978f138cbb7cdf.exe	100
PID 264 wrote to memory of 2232	264	b8568ef8c461f57be0df8d02e0488a5dbd9d2a7557c8d657e3978f138cbb7cdf.exe	100
PID 264 wrote to memory of 2232	264	b8568ef8c461f57be0df8d02e0488a5dbd9d2a7557c8d657e3978f138cbb7cdf.exe	100
PID 264 wrote to memory of 2232	264	b8568ef8c461f57be0df8d02e0488a5dbd9d2a7557c8d657e3978f138cbb7cdf.exe	100
PID 264 wrote to memory of 2232	264	b8568ef8c461f57be0df8d02e0488a5dbd9d2a7557c8d657e3978f138cbb7cdf.exe	100
PID 264 wrote to memory of 2232	264	b8568ef8c461f57be0df8d02e0488a5dbd9d2a7557c8d657e3978f138cbb7cdf.exe	100

C:\Users\Admin\AppData\Local\Temp\b8568ef8c461f57be0df8d02e0488a5dbd9d2a7557c8d657e3978f138cbb7cdf.exe
"C:\Users\Admin\AppData\Local\Temp\b8568ef8c461f57be0df8d02e0488a5dbd9d2a7557c8d657e3978f138cbb7cdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:264
- C:\Users\Admin\AppData\Local\Temp\b8568ef8c461f57be0df8d02e0488a5dbd9d2a7557c8d657e3978f138cbb7cdf.exe
  "C:\Users\Admin\AppData\Local\Temp\b8568ef8c461f57be0df8d02e0488a5dbd9d2a7557c8d657e3978f138cbb7cdf.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2232

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

Lateral Movement

Collection

Data from Local System

4

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\b8568ef8c461f57be0df8d02e0488a5dbd9d2a7557c8d657e3978f138cbb7cdf.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/264-10-0x0000000006700000-0x000000000679C000-memory.dmp

Filesize
624KB

Download
memory/264-14-0x0000000074CE0000-0x0000000075490000-memory.dmp

Filesize
7.7MB

Download
memory/264-3-0x00000000051B0000-0x0000000005242000-memory.dmp

Filesize
584KB

Download
memory/264-0-0x0000000000690000-0x00000000007B6000-memory.dmp

Filesize
1.1MB

Download
memory/264-5-0x0000000005270000-0x000000000527A000-memory.dmp

Filesize
40KB

Download
memory/264-6-0x00000000056C0000-0x00000000056D6000-memory.dmp

Filesize
88KB

Download
memory/264-7-0x00000000056F0000-0x00000000056FC000-memory.dmp

Filesize
48KB

Download
memory/264-8-0x0000000005700000-0x000000000570E000-memory.dmp

Filesize
56KB

Download
memory/264-2-0x0000000005760000-0x0000000005D04000-memory.dmp

Filesize
5.6MB

Download
memory/264-9-0x0000000006490000-0x0000000006516000-memory.dmp

Filesize
536KB

Download
memory/264-4-0x00000000053E0000-0x00000000053F0000-memory.dmp

Filesize
64KB

Download
memory/264-1-0x0000000074CE0000-0x0000000075490000-memory.dmp

Filesize
7.7MB

Download
memory/2232-11-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2232-15-0x0000000074CE0000-0x0000000075490000-memory.dmp

Filesize
7.7MB

Download
memory/2232-16-0x0000000005910000-0x0000000005920000-memory.dmp

Filesize
64KB

Download
memory/2232-17-0x0000000005A20000-0x0000000005A86000-memory.dmp

Filesize
408KB

Download
memory/2232-19-0x0000000074CE0000-0x0000000075490000-memory.dmp

Filesize
7.7MB

Download
memory/2232-20-0x0000000005910000-0x0000000005920000-memory.dmp

Filesize
64KB

Download
memory/2232-21-0x00000000071D0000-0x0000000007220000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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