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 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4992-137-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

New Iquiry.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	New Iquiry.exe

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-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New Iquiry.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New Iquiry.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\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-1-5-21-2632097139-1792035885-811742494-1000\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 2348 set thread context of 4992 2348 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

5044 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

New Iquiry.exe

pid process

4992 New Iquiry.exe
4992 New Iquiry.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

New Iquiry.exe

pid process

4992 New Iquiry.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

New Iquiry.exe

description pid process

Token: SeDebugPrivilege 4992 New Iquiry.exe

description	pid	process	target process
PID 2348 set thread context of 4992	2348	New Iquiry.exe	New Iquiry.exe

pid	process
5044	schtasks.exe

pid	process
4992	New Iquiry.exe
4992	New Iquiry.exe

pid	process
4992	New Iquiry.exe

description	pid	process
Token: SeDebugPrivilege	4992	New Iquiry.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

New Iquiry.exe

description	pid	process	target process
PID 2348 wrote to memory of 5044	2348	New Iquiry.exe	schtasks.exe
PID 2348 wrote to memory of 5044	2348	New Iquiry.exe	schtasks.exe
PID 2348 wrote to memory of 5044	2348	New Iquiry.exe	schtasks.exe
PID 2348 wrote to memory of 4992	2348	New Iquiry.exe	New Iquiry.exe
PID 2348 wrote to memory of 4992	2348	New Iquiry.exe	New Iquiry.exe
PID 2348 wrote to memory of 4992	2348	New Iquiry.exe	New Iquiry.exe
PID 2348 wrote to memory of 4992	2348	New Iquiry.exe	New Iquiry.exe
PID 2348 wrote to memory of 4992	2348	New Iquiry.exe	New Iquiry.exe
PID 2348 wrote to memory of 4992	2348	New Iquiry.exe	New Iquiry.exe
PID 2348 wrote to memory of 4992	2348	New Iquiry.exe	New Iquiry.exe
PID 2348 wrote to memory of 4992	2348	New Iquiry.exe	New Iquiry.exe

outlook_office_path 1 IoCs

Processes:

New Iquiry.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\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-1-5-21-2632097139-1792035885-811742494-1000\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⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2348
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zlVUPSLwQlNjN" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFB3D.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:5044
- 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:4992

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

Query Registry

1

T1012

System Information Discovery

2

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\Microsoft\CLR_v4.0_32\UsageLogs\New Iquiry.exe.log

Filesize
507B

MD5
76ffb2f33cb32ade8fc862a67599e9d8

SHA1
920cc4ab75b36d2f9f6e979b74db568973c49130

SHA256
f1a3724670e3379318ec9c73f6f39058cab0ab013ba3cd90c047c3d701362310

SHA512
f33502c2e1bb30c05359bfc6819ca934642a1e01874e3060349127d792694d56ad22fccd6c9477b8ee50d66db35785779324273f509576b48b7f85577e001b4e

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpFB3D.tmp

Filesize
1KB

MD5
e041bc709c1f64d9cd3173bb33ced654

SHA1
f6826954a595f46a98005739d98f1086dfdc7747

SHA256
93a52886a72d87e7d205ddfe843c3805278bb9a941b0acb435d216b86b4df399

SHA512
1440b38cfb2ecadd3a43e29f803249b4c099db21082a6f05f024fdf1922925e0d39998498cb72ddf6e8cc85dd3ea2bf6561f5fd78d01fc6fbf05cc1d4cf33394

Download Submit
memory/2348-130-0x00000000003A0000-0x0000000000430000-memory.dmp

Filesize
576KB

Download
memory/2348-131-0x00000000078B0000-0x0000000007E54000-memory.dmp

Filesize
5.6MB

Download
memory/2348-132-0x0000000007300000-0x0000000007392000-memory.dmp

Filesize
584KB

Download
memory/2348-133-0x00000000073A0000-0x000000000743C000-memory.dmp

Filesize
624KB

Download
memory/4992-136-0x0000000000000000-mapping.dmp

Download
memory/4992-137-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4992-139-0x0000000006170000-0x00000000061D6000-memory.dmp

Filesize
408KB

Download
memory/4992-140-0x0000000006910000-0x0000000006960000-memory.dmp

Filesize
320KB

Download
memory/4992-141-0x0000000006670000-0x000000000667A000-memory.dmp

Filesize
40KB

Download
memory/5044-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads