agenttesla | c20c89ac40a184b9ccb5470083beb1ea1941dbdf1c6cc9e088d43865706e357b

General

Target

New Iquiry.exe
Size

552KB
MD5

1393fb7819f6038dba4822d3fa0b34da
SHA1

4b7fbce0e12551ba62702fd1a20041caa9fc8575
SHA256

3b91f298cfdb9541f0d548a38576e37012c645926ab3383d21677087c107b52f
SHA512

a72801f079a939d09f14b8e761c44c35e2ab8a91fc40caeb32e3200382b08f3a8ee148989ba9fd05fb05c5c77c5874fa8402524be35fa71a8b7427232abdf90c

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
atk9202

Signatures

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

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1976-63-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1976-64-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1976-65-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1976-66-0x0000000000446F9E-mapping.dmp	family_agenttesla
behavioral1/memory/1976-68-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1976-70-0x0000000000400000-0x000000000044C000-memory.dmp	family_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
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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

New Iquiry.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New Iquiry.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New Iquiry.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New Iquiry.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

New Iquiry.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\YYtJku = "C:\\Users\\Admin\\AppData\\Roaming\\YYtJku\\YYtJku.exe"	New Iquiry.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

New Iquiry.exe

description pid process target process

PID 1672 set thread context of 1976 1672 New Iquiry.exe New Iquiry.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1324 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

New Iquiry.exeNew Iquiry.exe

pid process

1672 New Iquiry.exe
1976 New Iquiry.exe
1976 New Iquiry.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

New Iquiry.exe

pid process

1976 New Iquiry.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

New Iquiry.exeNew Iquiry.exe

description pid process

Token: SeDebugPrivilege 1672 New Iquiry.exe
Token: SeDebugPrivilege 1976 New Iquiry.exe

description	pid	process	target process
PID 1672 set thread context of 1976	1672	New Iquiry.exe	New Iquiry.exe

pid	process
1324	schtasks.exe

pid	process
1672	New Iquiry.exe
1976	New Iquiry.exe
1976	New Iquiry.exe

pid	process
1976	New Iquiry.exe

description	pid	process
Token: SeDebugPrivilege	1672	New Iquiry.exe
Token: SeDebugPrivilege	1976	New Iquiry.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

New Iquiry.exe

description	pid	process	target process
PID 1672 wrote to memory of 1324	1672	New Iquiry.exe	schtasks.exe
PID 1672 wrote to memory of 1324	1672	New Iquiry.exe	schtasks.exe
PID 1672 wrote to memory of 1324	1672	New Iquiry.exe	schtasks.exe
PID 1672 wrote to memory of 1324	1672	New Iquiry.exe	schtasks.exe
PID 1672 wrote to memory of 1112	1672	New Iquiry.exe	New Iquiry.exe
PID 1672 wrote to memory of 1112	1672	New Iquiry.exe	New Iquiry.exe
PID 1672 wrote to memory of 1112	1672	New Iquiry.exe	New Iquiry.exe
PID 1672 wrote to memory of 1112	1672	New Iquiry.exe	New Iquiry.exe
PID 1672 wrote to memory of 1976	1672	New Iquiry.exe	New Iquiry.exe
PID 1672 wrote to memory of 1976	1672	New Iquiry.exe	New Iquiry.exe
PID 1672 wrote to memory of 1976	1672	New Iquiry.exe	New Iquiry.exe
PID 1672 wrote to memory of 1976	1672	New Iquiry.exe	New Iquiry.exe
PID 1672 wrote to memory of 1976	1672	New Iquiry.exe	New Iquiry.exe
PID 1672 wrote to memory of 1976	1672	New Iquiry.exe	New Iquiry.exe
PID 1672 wrote to memory of 1976	1672	New Iquiry.exe	New Iquiry.exe
PID 1672 wrote to memory of 1976	1672	New Iquiry.exe	New Iquiry.exe
PID 1672 wrote to memory of 1976	1672	New Iquiry.exe	New Iquiry.exe

outlook_office_path 1 IoCs

Processes:

New Iquiry.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New Iquiry.exe

outlook_win_path 1 IoCs

Processes:

New Iquiry.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New Iquiry.exe

C:\Users\Admin\AppData\Local\Temp\New Iquiry.exe
"C:\Users\Admin\AppData\Local\Temp\New Iquiry.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1672
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zlVUPSLwQlNjN" /XML "C:\Users\Admin\AppData\Local\Temp\tmp99D0.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1324
- C:\Users\Admin\AppData\Local\Temp\New Iquiry.exe
  "{path}"
  2⤵
  PID:1112
- C:\Users\Admin\AppData\Local\Temp\New Iquiry.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1976

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp99D0.tmp

Filesize
1KB

MD5
b09486309d5a76cbb03b235f4a015132

SHA1
98e21a0a259bbe3e268479f6e76099f699b99fcf

SHA256
de2a3c91ad3729df00e2c634c58de000a66511e8d4da2a11044071907aa2af8f

SHA512
a3640accf8e28fbead6e39cff463f83c1b1b132f271794288762c1ae9f5cfd2f707adf6f48e9e223e7ed29d006a98e313831a64c2bd51b3ae6c4c8f511e65d85

Download Submit
memory/1324-58-0x0000000000000000-mapping.dmp

Download
memory/1672-54-0x0000000000310000-0x00000000003A0000-memory.dmp

Filesize
576KB

Download
memory/1672-55-0x0000000000430000-0x000000000043A000-memory.dmp

Filesize
40KB

Download
memory/1672-56-0x0000000000730000-0x0000000000784000-memory.dmp

Filesize
336KB

Download
memory/1672-57-0x00000000753B1000-0x00000000753B3000-memory.dmp

Filesize
8KB

Download
memory/1976-60-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1976-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1976-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1976-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1976-65-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1976-66-0x0000000000446F9E-mapping.dmp

Download
memory/1976-68-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1976-70-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads