agenttesla | f4c30cea341ea1eb32c15d19cc1c1f4831d4055f3c6c83adcc6995f34971e491

General

Target

Thalesnano.exe
Size

514KB
MD5

1ea4ac3f4abd23addae2f9288ff85dae
SHA1

309d52a22394e5909cfba8672f5e51bacab3dddc
SHA256

f3e4ddd5ea3076ca9b58c75b6fdc3e8f2379ee8f57614dda817f86bfaf9bdebf
SHA512

a6b1d577db41b7109a5566ebd8a0e3d8c8ade484c7e42d7c471a66050101b14fc8fc5a947ba1731481960fb74f0c6157a39080377e7da2f31ec69f7946d3fdb2

Score

10^/10

agenttesla agilenet keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yueqnugroup.com
Port:
587
Username:
youngboss@yueqnugroup.com
Password:
YOVxieJ1

Signatures

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

AgentTesla Payload 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3572-127-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/3572-128-0x000000000043762E-mapping.dmp	family_agenttesla
behavioral2/memory/3572-135-0x0000000005070000-0x000000000556E000-memory.dmp	family_agenttesla
behavioral2/memory/3572-140-0x0000000005070000-0x000000000556E000-memory.dmp	family_agenttesla

Executes dropped EXE 1 IoCs

Processes:

InstallUtil.exe

pid process

3572 InstallUtil.exe

pid	process
3572	InstallUtil.exe

Obfuscated with Agile.Net obfuscator 1 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

Processes:

resource	yara_rule
behavioral2/memory/852-121-0x0000000006280000-0x00000000062A1000-memory.dmp	agile_net

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
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 stealer

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 stealer

Data from Local System
T1005

Credentials in Files
T1081
Suspicious use of SetThreadContext 1 IoCs

Processes:

Thalesnano.exe

description pid process target process

PID 852 set thread context of 3572 852 Thalesnano.exe InstallUtil.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Thalesnano.exeInstallUtil.exe

pid process

852 Thalesnano.exe
852 Thalesnano.exe
3572 InstallUtil.exe
3572 InstallUtil.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Thalesnano.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 852 Thalesnano.exe
Token: SeDebugPrivilege 3572 InstallUtil.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

InstallUtil.exe

pid process

3572 InstallUtil.exe

description	pid	process	target process
PID 852 set thread context of 3572	852	Thalesnano.exe	InstallUtil.exe

pid	process
852	Thalesnano.exe
852	Thalesnano.exe
3572	InstallUtil.exe
3572	InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	852	Thalesnano.exe
Token: SeDebugPrivilege	3572	InstallUtil.exe

pid	process
3572	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

Thalesnano.exe

description	pid	process	target process
PID 852 wrote to memory of 3572	852	Thalesnano.exe	InstallUtil.exe
PID 852 wrote to memory of 3572	852	Thalesnano.exe	InstallUtil.exe
PID 852 wrote to memory of 3572	852	Thalesnano.exe	InstallUtil.exe
PID 852 wrote to memory of 3572	852	Thalesnano.exe	InstallUtil.exe
PID 852 wrote to memory of 3572	852	Thalesnano.exe	InstallUtil.exe
PID 852 wrote to memory of 3572	852	Thalesnano.exe	InstallUtil.exe
PID 852 wrote to memory of 3572	852	Thalesnano.exe	InstallUtil.exe
PID 852 wrote to memory of 3572	852	Thalesnano.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\Thalesnano.exe
"C:\Users\Admin\AppData\Local\Temp\Thalesnano.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:852

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3572

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
memory/852-124-0x0000000002A81000-0x0000000002A82000-memory.dmp

Filesize
4KB

Download
memory/852-117-0x0000000004EA0000-0x0000000004EA1000-memory.dmp

Filesize
4KB

Download
memory/852-119-0x0000000002A80000-0x0000000002A81000-memory.dmp

Filesize
4KB

Download
memory/852-121-0x0000000006280000-0x00000000062A1000-memory.dmp

Filesize
132KB

Download
memory/852-122-0x0000000006330000-0x0000000006331000-memory.dmp

Filesize
4KB

Download
memory/852-123-0x0000000006230000-0x0000000006231000-memory.dmp

Filesize
4KB

Download
memory/852-114-0x0000000000580000-0x0000000000581000-memory.dmp

Filesize
4KB

Download
memory/852-125-0x00000000069C0000-0x00000000069CB000-memory.dmp

Filesize
44KB

Download
memory/852-126-0x0000000008F60000-0x0000000008F61000-memory.dmp

Filesize
4KB

Download
memory/852-118-0x0000000004F50000-0x0000000004F51000-memory.dmp

Filesize
4KB

Download
memory/852-116-0x0000000005450000-0x0000000005451000-memory.dmp

Filesize
4KB

Download
memory/3572-127-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3572-128-0x000000000043762E-mapping.dmp

Download
memory/3572-135-0x0000000005070000-0x000000000556E000-memory.dmp

Filesize
5.0MB

Download
memory/3572-136-0x0000000005100000-0x0000000005101000-memory.dmp

Filesize
4KB

Download
memory/3572-139-0x0000000004FE0000-0x0000000004FE1000-memory.dmp

Filesize
4KB

Download
memory/3572-140-0x0000000005070000-0x000000000556E000-memory.dmp

Filesize
5.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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