agenttesla | 731d4912db7dffdbdad671f3606fcdf1aa28bc081f13a12dc59b08cafbb5e944

General

Target

incorrect bank accountdetails.exe
Size

1015KB
MD5

16ac48b497b41ed5c7c91151db5cb1bd
SHA1

63e1e2fbad01c5bde26f5d0a03c7ff67be1f9de3
SHA256

731d4912db7dffdbdad671f3606fcdf1aa28bc081f13a12dc59b08cafbb5e944
SHA512

13a5d6aecf1d1acbd5015f9d79e7342c426492ab277be1a929cc5132769eff1021a5d46161fb61e991807b9a2ecdebbc67d50210391507b4d3421fa947ee5b2a

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
webmail.mdist.us
Port:
587
Username:
ln@mdist.us
Password:
Ln#4321

Signatures

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

AgentTesla Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/432-67-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/432-68-0x000000000043785E-mapping.dmp	family_agenttesla
behavioral1/memory/432-69-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

incorrect bank accountdetails.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts incorrect bank accountdetails.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

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	incorrect bank accountdetails.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

incorrect bank accountdetails.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\ppptOL = "C:\\Users\\Admin\\AppData\\Roaming\\ppptOL\\ppptOL.exe"	incorrect bank accountdetails.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

incorrect bank accountdetails.exe

description pid process target process

PID 1088 set thread context of 432 1088 incorrect bank accountdetails.exe incorrect bank accountdetails.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1688 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

incorrect bank accountdetails.exe

pid process

432 incorrect bank accountdetails.exe
432 incorrect bank accountdetails.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

incorrect bank accountdetails.exe

description pid process

Token: SeDebugPrivilege 432 incorrect bank accountdetails.exe

description	pid	process	target process
PID 1088 set thread context of 432	1088	incorrect bank accountdetails.exe	incorrect bank accountdetails.exe

pid	process
1688	schtasks.exe

pid	process
432	incorrect bank accountdetails.exe
432	incorrect bank accountdetails.exe

description	pid	process
Token: SeDebugPrivilege	432	incorrect bank accountdetails.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

incorrect bank accountdetails.exe

description	pid	process	target process
PID 1088 wrote to memory of 1688	1088	incorrect bank accountdetails.exe	schtasks.exe
PID 1088 wrote to memory of 1688	1088	incorrect bank accountdetails.exe	schtasks.exe
PID 1088 wrote to memory of 1688	1088	incorrect bank accountdetails.exe	schtasks.exe
PID 1088 wrote to memory of 1688	1088	incorrect bank accountdetails.exe	schtasks.exe
PID 1088 wrote to memory of 432	1088	incorrect bank accountdetails.exe	incorrect bank accountdetails.exe
PID 1088 wrote to memory of 432	1088	incorrect bank accountdetails.exe	incorrect bank accountdetails.exe
PID 1088 wrote to memory of 432	1088	incorrect bank accountdetails.exe	incorrect bank accountdetails.exe
PID 1088 wrote to memory of 432	1088	incorrect bank accountdetails.exe	incorrect bank accountdetails.exe
PID 1088 wrote to memory of 432	1088	incorrect bank accountdetails.exe	incorrect bank accountdetails.exe
PID 1088 wrote to memory of 432	1088	incorrect bank accountdetails.exe	incorrect bank accountdetails.exe
PID 1088 wrote to memory of 432	1088	incorrect bank accountdetails.exe	incorrect bank accountdetails.exe
PID 1088 wrote to memory of 432	1088	incorrect bank accountdetails.exe	incorrect bank accountdetails.exe
PID 1088 wrote to memory of 432	1088	incorrect bank accountdetails.exe	incorrect bank accountdetails.exe

C:\Users\Admin\AppData\Local\Temp\incorrect bank accountdetails.exe
"C:\Users\Admin\AppData\Local\Temp\incorrect bank accountdetails.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1088

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CcLEiYgvTqC" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC0DF.tmp"
2⤵
- Creates scheduled task(s)
PID:1688

C:\Users\Admin\AppData\Local\Temp\incorrect bank accountdetails.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:432

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpC0DF.tmp
MD5
cffd4588853c0c98b4a2c0b76ef0b626

SHA1
90cb90e826f54bd37c8be3fd85b000d933b93dc2

SHA256
038163328b8bcfe5ff7f5fb92ab569895f0eb6efbeb39df495c3b40bc523cb5f

SHA512
5c5be73c741e09750db78e1fabf4e31674e46e724964327783280dcf4104cf0e96f70c38e29bf19ded4130686ace42a573fd64c3430437488b7f17e064433d0d

Download Submit
memory/432-67-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/432-68-0x000000000043785E-mapping.dmp

Download
memory/432-69-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/432-71-0x0000000004B70000-0x0000000004B71000-memory.dmp

Filesize
4KB

Download
memory/432-72-0x0000000004B71000-0x0000000004B72000-memory.dmp

Filesize
4KB

Download
memory/1088-59-0x0000000000EB0000-0x0000000000EB1000-memory.dmp

Filesize
4KB

Download
memory/1088-61-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/1088-62-0x00000000003F0000-0x00000000003FE000-memory.dmp

Filesize
56KB

Download
memory/1088-63-0x00000000051F0000-0x000000000528C000-memory.dmp

Filesize
624KB

Download
memory/1088-64-0x0000000000610000-0x0000000000668000-memory.dmp

Filesize
352KB

Download
memory/1688-65-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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