agenttesla | 4c197092877ec4d548bdb4a2fb4284bed16b940e701c3123fba0f25eac00664a

General

Target

winlog.exe
Size

678KB
MD5

73e25f09d4c7e66c2f126f49e47154aa
SHA1

10f9c184b5e5f305a2e866087e0581ef23f32b28
SHA256

4c197092877ec4d548bdb4a2fb4284bed16b940e701c3123fba0f25eac00664a
SHA512

598c80a7772d9764698c8e1348e62ff2f270e4bb634f585436882c8a87b026ab043c7f712f49a582458de65032e4a68cd0b217a54ae32458ea728e9cafabbb95

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.sistemassg.com
Port:
587
Username:
[email protected]
Password:
princehero1234

Signatures

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

AgentTesla Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1384-13-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/1384-14-0x000000000043761E-mapping.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:

winlog.exe

description pid process target process

PID 412 set thread context of 1384 412 winlog.exe winlog.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

winlog.exe

pid process

1384 winlog.exe
1384 winlog.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

winlog.exe

description pid process

Token: SeDebugPrivilege 1384 winlog.exe

description	pid	process	target process
PID 412 set thread context of 1384	412	winlog.exe	winlog.exe

pid	process
1384	winlog.exe
1384	winlog.exe

description	pid	process
Token: SeDebugPrivilege	1384	winlog.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

winlog.exe

description	pid	process	target process
PID 412 wrote to memory of 1384	412	winlog.exe	winlog.exe
PID 412 wrote to memory of 1384	412	winlog.exe	winlog.exe
PID 412 wrote to memory of 1384	412	winlog.exe	winlog.exe
PID 412 wrote to memory of 1384	412	winlog.exe	winlog.exe
PID 412 wrote to memory of 1384	412	winlog.exe	winlog.exe
PID 412 wrote to memory of 1384	412	winlog.exe	winlog.exe
PID 412 wrote to memory of 1384	412	winlog.exe	winlog.exe
PID 412 wrote to memory of 1384	412	winlog.exe	winlog.exe

C:\Users\Admin\AppData\Local\Temp\winlog.exe
"C:\Users\Admin\AppData\Local\Temp\winlog.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:412

C:\Users\Admin\AppData\Local\Temp\winlog.exe
"C:\Users\Admin\AppData\Local\Temp\winlog.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1384

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

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\winlog.exe.log
MD5
90acfd72f14a512712b1a7380c0faf60

SHA1
40ba4accb8faa75887e84fb8e38d598dc8cf0f12

SHA256
20806822f0c130b340504132c1461b589261fbbc518e468f4f90733ab514cb86

SHA512
29dbf85e14e60868574cb4dc9bda83d3c229fb956733d8d2557f2475ee0e690ac9c2e72f31e02284996da6906ba2dbfa382a29b04c15a2406571d8ee19ad16b9

Download Submit
memory/412-11-0x0000000005BB0000-0x0000000005BB3000-memory.dmp

Filesize
12KB

Download
memory/412-8-0x0000000005880000-0x0000000005881000-memory.dmp

Filesize
4KB

Download
memory/412-12-0x00000000066E0000-0x000000000674C000-memory.dmp

Filesize
432KB

Download
memory/412-7-0x00000000059D0000-0x00000000059D1000-memory.dmp

Filesize
4KB

Download
memory/412-3-0x0000000000FC0000-0x0000000000FC1000-memory.dmp

Filesize
4KB

Download
memory/412-9-0x0000000005B30000-0x0000000005B31000-memory.dmp

Filesize
4KB

Download
memory/412-10-0x0000000005BC0000-0x0000000005BC1000-memory.dmp

Filesize
4KB

Download
memory/412-2-0x0000000073970000-0x000000007405E000-memory.dmp

Filesize
6.9MB

Download
memory/412-6-0x0000000005E30000-0x0000000005E31000-memory.dmp

Filesize
4KB

Download
memory/412-5-0x0000000005890000-0x0000000005891000-memory.dmp

Filesize
4KB

Download
memory/1384-14-0x000000000043761E-mapping.dmp

Download
memory/1384-16-0x0000000073970000-0x000000007405E000-memory.dmp

Filesize
6.9MB

Download
memory/1384-13-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1384-21-0x00000000059E0000-0x00000000059E1000-memory.dmp

Filesize
4KB

Download
memory/1384-22-0x0000000005C70000-0x0000000005C71000-memory.dmp

Filesize
4KB

Download
memory/1384-23-0x0000000006560000-0x0000000006561000-memory.dmp

Filesize
4KB

Download
memory/1384-26-0x00000000059E1000-0x00000000059E2000-memory.dmp

Filesize
4KB

Download

Analysis

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