agenttesla | 71e007a56e497f117c03e0e9eb8c8f4f6dc9028e63abaddce369def53afec29f

General

Target

yNOCiwmRRMhHK0b.exe
Size

650KB
MD5

f0116ce38ca46cd783e2964f015e7bb2
SHA1

05aed8fc62e0abc6907531dc72dc4262e9fb10f4
SHA256

71e007a56e497f117c03e0e9eb8c8f4f6dc9028e63abaddce369def53afec29f
SHA512

804c2b44cc98ee5cc199823745f619709246886fa4c773a7607bc424864ec624af5d58d897569b6eaecbda4bcb3b415d68a11266f0f1b9d31b5e284f3d536a8e

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
scojay@yandex.com
Password:
1994jaysco

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/2780-10-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla
behavioral2/memory/2780-11-0x0000000000460F7E-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:

yNOCiwmRRMhHK0b.exe

description pid process target process

PID 428 set thread context of 2780 428 yNOCiwmRRMhHK0b.exe yNOCiwmRRMhHK0b.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

yNOCiwmRRMhHK0b.exe

pid process

2780 yNOCiwmRRMhHK0b.exe
2780 yNOCiwmRRMhHK0b.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

yNOCiwmRRMhHK0b.exe

description pid process

Token: SeDebugPrivilege 2780 yNOCiwmRRMhHK0b.exe

description	pid	process	target process
PID 428 set thread context of 2780	428	yNOCiwmRRMhHK0b.exe	yNOCiwmRRMhHK0b.exe

pid	process
2780	yNOCiwmRRMhHK0b.exe
2780	yNOCiwmRRMhHK0b.exe

description	pid	process
Token: SeDebugPrivilege	2780	yNOCiwmRRMhHK0b.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

yNOCiwmRRMhHK0b.exe

description	pid	process	target process
PID 428 wrote to memory of 2780	428	yNOCiwmRRMhHK0b.exe	yNOCiwmRRMhHK0b.exe
PID 428 wrote to memory of 2780	428	yNOCiwmRRMhHK0b.exe	yNOCiwmRRMhHK0b.exe
PID 428 wrote to memory of 2780	428	yNOCiwmRRMhHK0b.exe	yNOCiwmRRMhHK0b.exe
PID 428 wrote to memory of 2780	428	yNOCiwmRRMhHK0b.exe	yNOCiwmRRMhHK0b.exe
PID 428 wrote to memory of 2780	428	yNOCiwmRRMhHK0b.exe	yNOCiwmRRMhHK0b.exe
PID 428 wrote to memory of 2780	428	yNOCiwmRRMhHK0b.exe	yNOCiwmRRMhHK0b.exe
PID 428 wrote to memory of 2780	428	yNOCiwmRRMhHK0b.exe	yNOCiwmRRMhHK0b.exe
PID 428 wrote to memory of 2780	428	yNOCiwmRRMhHK0b.exe	yNOCiwmRRMhHK0b.exe

C:\Users\Admin\AppData\Local\Temp\yNOCiwmRRMhHK0b.exe
"C:\Users\Admin\AppData\Local\Temp\yNOCiwmRRMhHK0b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:428

C:\Users\Admin\AppData\Local\Temp\yNOCiwmRRMhHK0b.exe
"{path}"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2780

Network

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\yNOCiwmRRMhHK0b.exe.log
MD5
3fed8d1dd11972a6e2603bb2d73a3ee5

SHA1
7ecb7f64ade7b91c5815da647e84167c3d95afb4

SHA256
eecf6c0575dc995a485d46a5daaa66f58229e552f16782d873834d218ab17551

SHA512
ca6059eb67f800cc666d5146d24070abf5ee08209f8f9d1668a0ca2201eb3f6fa013c2d807b09925e12b82c37686980fcc26a6a5e4a5ba129c4b2a585961d3bb

Download Submit
memory/428-7-0x00000000089A0000-0x00000000089A1000-memory.dmp

Filesize
4KB

Download
memory/428-9-0x0000000007720000-0x00000000077AB000-memory.dmp

Filesize
556KB

Download
memory/428-4-0x0000000005420000-0x0000000005421000-memory.dmp

Filesize
4KB

Download
memory/428-5-0x00000000054C0000-0x00000000054C1000-memory.dmp

Filesize
4KB

Download
memory/428-6-0x0000000008E30000-0x0000000008E31000-memory.dmp

Filesize
4KB

Download
memory/428-0-0x0000000073160000-0x000000007384E000-memory.dmp

Filesize
6.9MB

Download
memory/428-8-0x0000000008970000-0x0000000008984000-memory.dmp

Filesize
80KB

Download
memory/428-3-0x0000000005860000-0x0000000005861000-memory.dmp

Filesize
4KB

Download
memory/428-1-0x0000000000A00000-0x0000000000A01000-memory.dmp

Filesize
4KB

Download
memory/2780-11-0x0000000000460F7E-mapping.dmp

Download
memory/2780-10-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2780-13-0x0000000073160000-0x000000007384E000-memory.dmp

Filesize
6.9MB

Download
memory/2780-18-0x0000000005630000-0x0000000005631000-memory.dmp

Filesize
4KB

Download
memory/2780-19-0x0000000005AD0000-0x0000000005AD1000-memory.dmp

Filesize
4KB

Download

Analysis

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