agenttesla | 052148f226d2b1e51ca7318eacda6906765138d2e28b290558a2b7003e9f6634

General

Target

TRM76EWDS.com.exe
Size

401KB
MD5

fa54db10aba75c0b629fea0c37e64de3
SHA1

931097d1be9092432b8ebb04c0a96f36060aa7ea
SHA256

052148f226d2b1e51ca7318eacda6906765138d2e28b290558a2b7003e9f6634
SHA512

c2e43e5eecc0bcb99ce08a3ffae9bd80867ad48ffd20f00c949f5d28d04677f1744edcd8f7a93efa78a512b5e62cd25ca59413078a845a5f5ba9c2ae62b4024e

Score

10^/10

agenttesla evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.privateemail.com
Port:
587
Username:
dubemlogszz@lascostoolsc.xyz
Password:
dubem@4000XAXAX

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
behavioral1/memory/1536-0-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1536-1-0x00000000004474DE-mapping.dmp	family_agenttesla
behavioral1/memory/1536-2-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1536-3-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Drops file in Drivers directory 1 IoCs

Processes:

RegSvcs.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	RegSvcs.exe

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:

TRM76EWDS.com.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	TRM76EWDS.com.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	TRM76EWDS.com.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

RegSvcs.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\ZAXVpp = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ZAXVpp\\ZAXVpp.exe"	RegSvcs.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:

TRM76EWDS.com.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	TRM76EWDS.com.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	TRM76EWDS.com.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

TRM76EWDS.com.exe

description pid process target process

PID 1448 set thread context of 1536 1448 TRM76EWDS.com.exe RegSvcs.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegSvcs.exe

pid process

1536 RegSvcs.exe
1536 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 1536 RegSvcs.exe

description	pid	process	target process
PID 1448 set thread context of 1536	1448	TRM76EWDS.com.exe	RegSvcs.exe

pid	process
1536	RegSvcs.exe
1536	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1536	RegSvcs.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

TRM76EWDS.com.exe

description	pid	process	target process
PID 1448 wrote to memory of 1536	1448	TRM76EWDS.com.exe	RegSvcs.exe
PID 1448 wrote to memory of 1536	1448	TRM76EWDS.com.exe	RegSvcs.exe
PID 1448 wrote to memory of 1536	1448	TRM76EWDS.com.exe	RegSvcs.exe
PID 1448 wrote to memory of 1536	1448	TRM76EWDS.com.exe	RegSvcs.exe
PID 1448 wrote to memory of 1536	1448	TRM76EWDS.com.exe	RegSvcs.exe
PID 1448 wrote to memory of 1536	1448	TRM76EWDS.com.exe	RegSvcs.exe
PID 1448 wrote to memory of 1536	1448	TRM76EWDS.com.exe	RegSvcs.exe
PID 1448 wrote to memory of 1536	1448	TRM76EWDS.com.exe	RegSvcs.exe
PID 1448 wrote to memory of 1536	1448	TRM76EWDS.com.exe	RegSvcs.exe
PID 1448 wrote to memory of 1536	1448	TRM76EWDS.com.exe	RegSvcs.exe
PID 1448 wrote to memory of 1536	1448	TRM76EWDS.com.exe	RegSvcs.exe
PID 1448 wrote to memory of 1536	1448	TRM76EWDS.com.exe	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\TRM76EWDS.com.exe
"C:\Users\Admin\AppData\Local\Temp\TRM76EWDS.com.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1448

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1536

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

2

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1536-0-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1536-1-0x00000000004474DE-mapping.dmp

Download
memory/1536-2-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1536-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads