agenttesla | 6d123955f4e88f7aa0e4466d063033f054f28714a53229c77e18d5cfaee44792

General

Target

CT_Y039581726.exe
Size

509KB
MD5

120d7f3a1d90817bae339b50b40d17d3
SHA1

79ce12a56cda10d463fc45926eeb216c133d9702
SHA256

48a8412a53603f0802d074c01c6792940732155c95b38b168d37965ecadba031
SHA512

dc60c97026a63cd77ab241a8cb63ac1875ba1af6fe76aa1f30dc3fe6d04c3c0bd1ff6ae3d4f5b096540a76b7bb6e826f91242fab5c68836822aea9b63f6e173a

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.gfaqrochem.com
Port:
587
Username:
turkey@gfaqrochem.com
Password:
k@rCFBF4

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/4948-138-0x0000000000400000-0x0000000000452000-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:

CT_Y039581726.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	CT_Y039581726.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:

CT_Y039581726.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	CT_Y039581726.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CT_Y039581726.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CT_Y039581726.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

CT_Y039581726.exe

description pid process target process

PID 5100 set thread context of 4948 5100 CT_Y039581726.exe CT_Y039581726.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

1648 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

CT_Y039581726.exe

pid process

4948 CT_Y039581726.exe
4948 CT_Y039581726.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

CT_Y039581726.exe

description pid process

Token: SeDebugPrivilege 4948 CT_Y039581726.exe

description	pid	process	target process
PID 5100 set thread context of 4948	5100	CT_Y039581726.exe	CT_Y039581726.exe

pid	process
1648	schtasks.exe

pid	process
4948	CT_Y039581726.exe
4948	CT_Y039581726.exe

description	pid	process
Token: SeDebugPrivilege	4948	CT_Y039581726.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

CT_Y039581726.exeCT_Y039581726.exe

description	pid	process	target process
PID 5100 wrote to memory of 1648	5100	CT_Y039581726.exe	schtasks.exe
PID 5100 wrote to memory of 1648	5100	CT_Y039581726.exe	schtasks.exe
PID 5100 wrote to memory of 1648	5100	CT_Y039581726.exe	schtasks.exe
PID 5100 wrote to memory of 4948	5100	CT_Y039581726.exe	CT_Y039581726.exe
PID 5100 wrote to memory of 4948	5100	CT_Y039581726.exe	CT_Y039581726.exe
PID 5100 wrote to memory of 4948	5100	CT_Y039581726.exe	CT_Y039581726.exe
PID 5100 wrote to memory of 4948	5100	CT_Y039581726.exe	CT_Y039581726.exe
PID 5100 wrote to memory of 4948	5100	CT_Y039581726.exe	CT_Y039581726.exe
PID 5100 wrote to memory of 4948	5100	CT_Y039581726.exe	CT_Y039581726.exe
PID 5100 wrote to memory of 4948	5100	CT_Y039581726.exe	CT_Y039581726.exe
PID 5100 wrote to memory of 4948	5100	CT_Y039581726.exe	CT_Y039581726.exe
PID 4948 wrote to memory of 4236	4948	CT_Y039581726.exe	netsh.exe
PID 4948 wrote to memory of 4236	4948	CT_Y039581726.exe	netsh.exe
PID 4948 wrote to memory of 4236	4948	CT_Y039581726.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

CT_Y039581726.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	CT_Y039581726.exe

outlook_win_path 1 IoCs

Processes:

CT_Y039581726.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	CT_Y039581726.exe

C:\Users\Admin\AppData\Local\Temp\CT_Y039581726.exe
"C:\Users\Admin\AppData\Local\Temp\CT_Y039581726.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5100

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qFzTXiSqzah" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF87E.tmp"
2⤵
- Creates scheduled task(s)
PID:1648

C:\Users\Admin\AppData\Local\Temp\CT_Y039581726.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:4948

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:4236

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\CT_Y039581726.exe.log
Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpF87E.tmp
Filesize
1KB

MD5
9a5b51d5142fbe4899ec11dbb650d7db

SHA1
9ebc91abd1e4bc4209ac26212bfa94400eeec369

SHA256
ae39ff3449fe3f2317a90528c838ae56d3ad686e9d4fcb434682e8fd76de9dea

SHA512
68f2060e0062ad9ed95b9af9a89e4e9ff8c5d52d3be7939de504e5202c257e71dbcc2ef956696e22e9ac174e196f11570c23b4e5604f78e53f5f4f7a374adf0f

Download Submit
memory/1648-135-0x0000000000000000-mapping.dmp

Download
memory/4236-142-0x0000000000000000-mapping.dmp

Download
memory/4948-137-0x0000000000000000-mapping.dmp

Download
memory/4948-138-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/4948-140-0x0000000005C80000-0x0000000005CE6000-memory.dmp

Filesize
408KB

Download
memory/4948-141-0x0000000006920000-0x0000000006970000-memory.dmp

Filesize
320KB

Download
memory/5100-132-0x0000000007DF0000-0x0000000007E82000-memory.dmp

Filesize
584KB

Download
memory/5100-133-0x0000000007DC0000-0x0000000007DCA000-memory.dmp

Filesize
40KB

Download
memory/5100-134-0x000000000B8A0000-0x000000000B93C000-memory.dmp

Filesize
624KB

Download
memory/5100-130-0x0000000000EB0000-0x0000000000F36000-memory.dmp

Filesize
536KB

Download
memory/5100-131-0x0000000008300000-0x00000000088A4000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads