agenttesla | 3efc1b97fec22aac64312a98c7a5d2aece1d84dbacd6f7a082333fc25ccdf84d

Analysis

max time kernel
143s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20231130-en
resource tags

arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
submitted
06-12-2023 03:00

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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 4764 set thread context of 4512 4764 Yjcznyaio.exe Yjcznyaio.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Yjcznyaio.exe

pid process

4512 Yjcznyaio.exe
4512 Yjcznyaio.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Yjcznyaio.exeYjcznyaio.exe

description pid process

Token: SeDebugPrivilege 4764 Yjcznyaio.exe
Token: SeDebugPrivilege 4512 Yjcznyaio.exe

description	pid	process	target process
PID 4764 set thread context of 4512	4764	Yjcznyaio.exe	Yjcznyaio.exe

pid	process
4512	Yjcznyaio.exe
4512	Yjcznyaio.exe

description	pid	process
Token: SeDebugPrivilege	4764	Yjcznyaio.exe
Token: SeDebugPrivilege	4512	Yjcznyaio.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

Yjcznyaio.exe

description	pid	process	target process
PID 4764 wrote to memory of 4512	4764	Yjcznyaio.exe	Yjcznyaio.exe
PID 4764 wrote to memory of 4512	4764	Yjcznyaio.exe	Yjcznyaio.exe
PID 4764 wrote to memory of 4512	4764	Yjcznyaio.exe	Yjcznyaio.exe
PID 4764 wrote to memory of 4512	4764	Yjcznyaio.exe	Yjcznyaio.exe
PID 4764 wrote to memory of 4512	4764	Yjcznyaio.exe	Yjcznyaio.exe
PID 4764 wrote to memory of 4512	4764	Yjcznyaio.exe	Yjcznyaio.exe
PID 4764 wrote to memory of 4512	4764	Yjcznyaio.exe	Yjcznyaio.exe
PID 4764 wrote to memory of 4512	4764	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:4764

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:4512

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Yjcznyaio.exe.log

Filesize
1KB

MD5
8c2da65103d6b46d8cf610b118210cf0

SHA1
9db4638340bb74f2af3161cc2c9c0b8b32e6ab65

SHA256
0e48e2efd419951e0eb9a8d942493cfdf5540d1d19ff9dae6f145fb3ebcbeeac

SHA512
3cf5a125276e264cd8478f2b92d3848fb68b96d46eb4a39e650d09df02068c274881a1c314cdfbfdcb452672fb70dd8becf3ffe9562d39919d9c4d6b07fbb614

Download Submit
memory/4512-15-0x00000000056F0000-0x0000000005700000-memory.dmp

Filesize
64KB

Download
memory/4512-16-0x0000000005620000-0x0000000005686000-memory.dmp

Filesize
408KB

Download
memory/4512-10-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/4512-19-0x0000000075120000-0x00000000758D0000-memory.dmp

Filesize
7.7MB

Download
memory/4512-18-0x0000000006510000-0x00000000065AC000-memory.dmp

Filesize
624KB

Download
memory/4512-17-0x0000000006420000-0x0000000006470000-memory.dmp

Filesize
320KB

Download
memory/4512-14-0x0000000075120000-0x00000000758D0000-memory.dmp

Filesize
7.7MB

Download
memory/4512-20-0x00000000056F0000-0x0000000005700000-memory.dmp

Filesize
64KB

Download
memory/4764-3-0x0000000004FC0000-0x0000000005052000-memory.dmp

Filesize
584KB

Download
memory/4764-8-0x00000000052C0000-0x0000000005300000-memory.dmp

Filesize
256KB

Download
memory/4764-7-0x00000000051F0000-0x0000000005230000-memory.dmp

Filesize
256KB

Download
memory/4764-1-0x0000000075120000-0x00000000758D0000-memory.dmp

Filesize
7.7MB

Download
memory/4764-13-0x0000000075120000-0x00000000758D0000-memory.dmp

Filesize
7.7MB

Download
memory/4764-2-0x0000000005490000-0x0000000005A34000-memory.dmp

Filesize
5.6MB

Download
memory/4764-0-0x0000000000550000-0x00000000005D0000-memory.dmp

Filesize
512KB

Download
memory/4764-6-0x0000000005240000-0x0000000005298000-memory.dmp

Filesize
352KB

Download
memory/4764-5-0x0000000005150000-0x000000000515A000-memory.dmp

Filesize
40KB

Download
memory/4764-4-0x0000000005230000-0x0000000005240000-memory.dmp

Filesize
64KB

Download
memory/4764-9-0x0000000005300000-0x000000000534C000-memory.dmp

Filesize
304KB

Download