agenttesla | 919b877e9c76be62e66d349905d10c8bff2613cb1d1b01ee39493dbdbc3b6c32

General

Target

A6563764.exe
Size

506KB
MD5

8f366af5c2c53e79ca0c9266f78579a5
SHA1

49764c16ce6035d15ada170f1890066f1e376177
SHA256

919b877e9c76be62e66d349905d10c8bff2613cb1d1b01ee39493dbdbc3b6c32
SHA512

3c1829b0000769a8702ad299233e9cf26c33d3d9fac6cd6d47c7139ac45537bb470725f9977f7c3c0f2a07d2c71fa6408526e6e30fbe7ff90ed7a3d08b9afe94

Score

10^/10

agenttesla coreentity keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.mail.ru
Port:
587
Username:
workbox1970@mail.ru
Password:
PZAM5i(h1ioy

Signatures

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

CoreEntity .NET Packer 1 IoCs

A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

coreentity

Processes:

resource	yara_rule
behavioral1/memory/1664-4-0x00000000003D0000-0x00000000003D3000-memory.dmp	coreentity

AgentTesla Payload 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1592-6-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1592-7-0x000000000044C81E-mapping.dmp	family_agenttesla
behavioral1/memory/1592-8-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1592-9-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

rezer0 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1664-5-0x0000000007440000-0x0000000007493000-memory.dmp	rezer0

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:

A6563764.exe

description pid process target process

PID 1664 set thread context of 1592 1664 A6563764.exe A6563764.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

A6563764.exeA6563764.exe

pid process

1664 A6563764.exe
1664 A6563764.exe
1664 A6563764.exe
1592 A6563764.exe
1592 A6563764.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

A6563764.exeA6563764.exe

description pid process

Token: SeDebugPrivilege 1664 A6563764.exe
Token: SeDebugPrivilege 1592 A6563764.exe

description	pid	process	target process
PID 1664 set thread context of 1592	1664	A6563764.exe	A6563764.exe

pid	process
1664	A6563764.exe
1664	A6563764.exe
1664	A6563764.exe
1592	A6563764.exe
1592	A6563764.exe

description	pid	process
Token: SeDebugPrivilege	1664	A6563764.exe
Token: SeDebugPrivilege	1592	A6563764.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

A6563764.exeA6563764.exe

description	pid	process	target process
PID 1664 wrote to memory of 1592	1664	A6563764.exe	A6563764.exe
PID 1664 wrote to memory of 1592	1664	A6563764.exe	A6563764.exe
PID 1664 wrote to memory of 1592	1664	A6563764.exe	A6563764.exe
PID 1664 wrote to memory of 1592	1664	A6563764.exe	A6563764.exe
PID 1664 wrote to memory of 1592	1664	A6563764.exe	A6563764.exe
PID 1664 wrote to memory of 1592	1664	A6563764.exe	A6563764.exe
PID 1664 wrote to memory of 1592	1664	A6563764.exe	A6563764.exe
PID 1664 wrote to memory of 1592	1664	A6563764.exe	A6563764.exe
PID 1664 wrote to memory of 1592	1664	A6563764.exe	A6563764.exe
PID 1592 wrote to memory of 440	1592	A6563764.exe	netsh.exe
PID 1592 wrote to memory of 440	1592	A6563764.exe	netsh.exe
PID 1592 wrote to memory of 440	1592	A6563764.exe	netsh.exe
PID 1592 wrote to memory of 440	1592	A6563764.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\A6563764.exe
"C:\Users\Admin\AppData\Local\Temp\A6563764.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1664

C:\Users\Admin\AppData\Local\Temp\A6563764.exe
"{path}"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1592

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:440

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

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Downloads

memory/440-13-0x0000000000000000-mapping.dmp

Download
memory/1592-6-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1592-7-0x000000000044C81E-mapping.dmp

Download
memory/1592-8-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1592-9-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1592-10-0x0000000074000000-0x00000000746EE000-memory.dmp

Filesize
6.9MB

Download
memory/1664-0-0x0000000074000000-0x00000000746EE000-memory.dmp

Filesize
6.9MB

Download
memory/1664-1-0x0000000000DC0000-0x0000000000DC1000-memory.dmp

Filesize
4KB

Download
memory/1664-3-0x0000000000960000-0x00000000009BD000-memory.dmp

Filesize
372KB

Download
memory/1664-4-0x00000000003D0000-0x00000000003D3000-memory.dmp

Filesize
12KB

Download
memory/1664-5-0x0000000007440000-0x0000000007493000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads