agenttesla | 3efc1b97fec22aac64312a98c7a5d2aece1d84dbacd6f7a082333fc25ccdf84d

General

Target

Yjcznyaio.exe
Size

485KB
MD5

19c87b62fa468077f1b27cee9fd24f38
SHA1

ce03e531253aefdcba09c4daf4054e0e787bc6ad
SHA256

9b7e62af80bd6db7c63b34d69435354e1650316baf0dbaa387a486651cbdaf4e
SHA512

b3cc33e888c10d46b42cbe774e9affe7d202c82ad6b9686565355802ffb19fe7dd98a12702c687f6d50dc5dab64f057a481d00e29c504577ffe06db716803494
SSDEEP

6144:mDBVFYIJ1UIZNzmKqZxLnsvbGc23sQ37WJPOZd+/9+qu1Hhsg26gzrelVJ:mDTXTZJmxLnybtaJW1Cw/9aLuX

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.sturmsgroup.com
Port:
587
Username:
[email protected]
Password:
hs_B2R1px4ASsOhR
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
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
Suspicious use of SetThreadContext 1 IoCs

Processes:

Yjcznyaio.exe

description pid process target process

PID 1744 set thread context of 2092 1744 Yjcznyaio.exe Yjcznyaio.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Yjcznyaio.exe

pid process

2092 Yjcznyaio.exe
2092 Yjcznyaio.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Yjcznyaio.exeYjcznyaio.exe

description pid process

Token: SeDebugPrivilege 1744 Yjcznyaio.exe
Token: SeDebugPrivilege 2092 Yjcznyaio.exe

description	pid	process	target process
PID 1744 set thread context of 2092	1744	Yjcznyaio.exe	Yjcznyaio.exe

pid	process
2092	Yjcznyaio.exe
2092	Yjcznyaio.exe

description	pid	process
Token: SeDebugPrivilege	1744	Yjcznyaio.exe
Token: SeDebugPrivilege	2092	Yjcznyaio.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

Yjcznyaio.exe

description	pid	process	target process
PID 1744 wrote to memory of 2092	1744	Yjcznyaio.exe	Yjcznyaio.exe
PID 1744 wrote to memory of 2092	1744	Yjcznyaio.exe	Yjcznyaio.exe
PID 1744 wrote to memory of 2092	1744	Yjcznyaio.exe	Yjcznyaio.exe
PID 1744 wrote to memory of 2092	1744	Yjcznyaio.exe	Yjcznyaio.exe
PID 1744 wrote to memory of 2092	1744	Yjcznyaio.exe	Yjcznyaio.exe
PID 1744 wrote to memory of 2092	1744	Yjcznyaio.exe	Yjcznyaio.exe
PID 1744 wrote to memory of 2092	1744	Yjcznyaio.exe	Yjcznyaio.exe
PID 1744 wrote to memory of 2092	1744	Yjcznyaio.exe	Yjcznyaio.exe
PID 1744 wrote to memory of 2092	1744	Yjcznyaio.exe	Yjcznyaio.exe

C:\Users\Admin\AppData\Local\Temp\Yjcznyaio.exe
"C:\Users\Admin\AppData\Local\Temp\Yjcznyaio.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1744

C:\Users\Admin\AppData\Local\Temp\Yjcznyaio.exe
C:\Users\Admin\AppData\Local\Temp\Yjcznyaio.exe
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2092

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

3

T1552

Credentials In Files

3

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1744-0-0x0000000000A80000-0x0000000000B00000-memory.dmp

Filesize
512KB

Download
memory/1744-1-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/1744-2-0x00000000048A0000-0x00000000048E0000-memory.dmp

Filesize
256KB

Download
memory/1744-3-0x0000000000970000-0x00000000009C8000-memory.dmp

Filesize
352KB

Download
memory/1744-4-0x00000000006B0000-0x00000000006F0000-memory.dmp

Filesize
256KB

Download
memory/1744-5-0x00000000009D0000-0x0000000000A10000-memory.dmp

Filesize
256KB

Download
memory/1744-6-0x0000000004270000-0x00000000042BC000-memory.dmp

Filesize
304KB

Download
memory/1744-17-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/2092-11-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2092-9-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2092-8-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2092-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2092-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2092-7-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2092-18-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2092-20-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2092-21-0x0000000073F40000-0x000000007462E000-memory.dmp

Filesize
6.9MB

Download
memory/2092-22-0x0000000004CF0000-0x0000000004D30000-memory.dmp

Filesize
256KB

Download
memory/2092-23-0x0000000073F40000-0x000000007462E000-memory.dmp

Filesize
6.9MB

Download
memory/2092-24-0x0000000004CF0000-0x0000000004D30000-memory.dmp

Filesize
256KB

Download

Analysis

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