agenttesla | 613ec38e8aa3a86fca3c825a8fb3cc1997a1e1401e5b9acba5daff668a01c2f9

General

Target

ch1.exe
Size

763KB
MD5

cf29a15b9d5764c1033b13a3b0861e36
SHA1

423229cd1c7617856349e9931f35d962bde55ba0
SHA256

bdbf27545d51eb4fa15659002a993ed3cb377279a6671d72051aa70a9cda189e
SHA512

0991c07a3ddf3cdbf514d0ca9cbe6f605fe0b5715ddb288b0f54e23bd1ece1fe9f9b5bb51ccf709993e75fe38d20bf17f2f0ec21bd09ccc00df352ef08ce19d9

Score

10^/10

agenttesla collection evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.elittacop.com
Port:
587
Username:
[email protected]
Password:
@eaSYuc8

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/3360-137-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

ch1.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	ch1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	ch1.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:

ch1.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ch1.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ch1.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ch1.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

ch1.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	ch1.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	ch1.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

ch1.exe

description pid process target process

PID 5028 set thread context of 3360 5028 ch1.exe ch1.exe
Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

ch1.exech1.exe

pid process

5028 ch1.exe
5028 ch1.exe
5028 ch1.exe
5028 ch1.exe
5028 ch1.exe
5028 ch1.exe
3360 ch1.exe
3360 ch1.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

ch1.exech1.exe

description pid process

Token: SeDebugPrivilege 5028 ch1.exe
Token: SeDebugPrivilege 3360 ch1.exe

description	pid	process	target process
PID 5028 set thread context of 3360	5028	ch1.exe	ch1.exe

pid	process
5028	ch1.exe
5028	ch1.exe
5028	ch1.exe
5028	ch1.exe
5028	ch1.exe
5028	ch1.exe
3360	ch1.exe
3360	ch1.exe

description	pid	process
Token: SeDebugPrivilege	5028	ch1.exe
Token: SeDebugPrivilege	3360	ch1.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

ch1.exe

description	pid	process	target process
PID 5028 wrote to memory of 3360	5028	ch1.exe	ch1.exe
PID 5028 wrote to memory of 3360	5028	ch1.exe	ch1.exe
PID 5028 wrote to memory of 3360	5028	ch1.exe	ch1.exe
PID 5028 wrote to memory of 3360	5028	ch1.exe	ch1.exe
PID 5028 wrote to memory of 3360	5028	ch1.exe	ch1.exe
PID 5028 wrote to memory of 3360	5028	ch1.exe	ch1.exe
PID 5028 wrote to memory of 3360	5028	ch1.exe	ch1.exe
PID 5028 wrote to memory of 3360	5028	ch1.exe	ch1.exe

outlook_office_path 1 IoCs

Processes:

ch1.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ch1.exe

outlook_win_path 1 IoCs

Processes:

ch1.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ch1.exe

C:\Users\Admin\AppData\Local\Temp\ch1.exe
"C:\Users\Admin\AppData\Local\Temp\ch1.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5028

C:\Users\Admin\AppData\Local\Temp\ch1.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3360

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Credentials in Files

3

T1081

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3360-136-0x0000000000000000-mapping.dmp

Download
memory/3360-137-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/3360-138-0x0000000006A00000-0x0000000006A50000-memory.dmp

Filesize
320KB

Download
memory/5028-130-0x0000000000590000-0x0000000000654000-memory.dmp

Filesize
784KB

Download
memory/5028-131-0x00000000058D0000-0x0000000005E74000-memory.dmp

Filesize
5.6MB

Download
memory/5028-132-0x0000000005420000-0x00000000054B2000-memory.dmp

Filesize
584KB

Download
memory/5028-133-0x0000000005090000-0x000000000509A000-memory.dmp

Filesize
40KB

Download
memory/5028-134-0x000000000E710000-0x000000000E7AC000-memory.dmp

Filesize
624KB

Download
memory/5028-135-0x000000000E820000-0x000000000E886000-memory.dmp

Filesize
408KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads