agenttesla | 7b2e9f16b557d194f079e970dac923105073eb2aed4b63960c05d5c4bb816184

General

Target

file.exe
Size

622KB
MD5

4014c919c4f26d8b5e72b255cffee0ab
SHA1

88a96eca36775921b5244f206ad461e761bc7a4a
SHA256

7b2e9f16b557d194f079e970dac923105073eb2aed4b63960c05d5c4bb816184
SHA512

48b1961ff9a2aaf68c37a2c4c72b20a51e0bb12f202a185d4cc8ddf0c175637e4e5c693daca8417af6d2c93860d46a83997774ae2e6318057ec9cd29f7b447b7

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.vivaldi.net
Port:
587
Username:
pouns@vivaldi.net
Password:
qwerty123@@@

Signatures

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

AgentTesla Payload 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1656-7-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1656-8-0x000000000043747E-mapping.dmp	family_agenttesla
behavioral1/memory/1656-9-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1656-10-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

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

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

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

Data from Local System
T1005

Credentials in Files
T1081
Suspicious use of SetThreadContext 1 IoCs

Processes:

file.exe

description pid process target process

PID 1680 set thread context of 1656 1680 file.exe file.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

file.exe

pid process

1656 file.exe
1656 file.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

file.exe

description pid process

Token: SeDebugPrivilege 1656 file.exe

description	pid	process	target process
PID 1680 set thread context of 1656	1680	file.exe	file.exe

pid	process
1656	file.exe
1656	file.exe

description	pid	process
Token: SeDebugPrivilege	1656	file.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

file.exe

description	pid	process	target process
PID 1680 wrote to memory of 1656	1680	file.exe	file.exe
PID 1680 wrote to memory of 1656	1680	file.exe	file.exe
PID 1680 wrote to memory of 1656	1680	file.exe	file.exe
PID 1680 wrote to memory of 1656	1680	file.exe	file.exe
PID 1680 wrote to memory of 1656	1680	file.exe	file.exe
PID 1680 wrote to memory of 1656	1680	file.exe	file.exe
PID 1680 wrote to memory of 1656	1680	file.exe	file.exe
PID 1680 wrote to memory of 1656	1680	file.exe	file.exe
PID 1680 wrote to memory of 1656	1680	file.exe	file.exe

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1680

C:\Users\Admin\AppData\Local\Temp\file.exe
"{path}"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1656

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1656-7-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1656-8-0x000000000043747E-mapping.dmp

Download
memory/1656-9-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1656-10-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1656-11-0x00000000741A0000-0x000000007488E000-memory.dmp

Filesize
6.9MB

Download
memory/1680-2-0x00000000741A0000-0x000000007488E000-memory.dmp

Filesize
6.9MB

Download
memory/1680-3-0x0000000001320000-0x0000000001321000-memory.dmp

Filesize
4KB

Download
memory/1680-5-0x0000000000360000-0x000000000036E000-memory.dmp

Filesize
56KB

Download
memory/1680-6-0x0000000004F10000-0x0000000004F9B000-memory.dmp

Filesize
556KB

Download

Analysis

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