agenttesla | d4ff3eaece5fb078d5487aaec85048eae39c80b5857f5b5745d3a3128e02aa30

General

Target

overdue invoice.pdf.exe
Size

1.3MB
MD5

dc5f5ae953f37c7f54a3d787fc2353ca
SHA1

75de209d727492f675faec351f728c2b9d09b565
SHA256

ab5f254a91426311df7fe85d3442b62c7b69dd1c6e444ef725ddcba5a06ac961
SHA512

32c651b7e91fd467616ab5391e4e4e51d343c4d91da4afbf8a8f63d5db2d3f60bca6cf3d77d88daa15da8cbdd7a9dccc7ab3766d859472ed7ca9e4b9ce9decd3

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.matrixas.in
Port:
587
Username:
[email protected]
Password:
info2013

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/1640-132-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Suspicious use of SetThreadContext 1 IoCs

Processes:

overdue invoice.pdf.exe

description pid process target process

PID 4476 set thread context of 1640 4476 overdue invoice.pdf.exe RegSvcs.exe

description	pid	process	target process
PID 4476 set thread context of 1640	4476	overdue invoice.pdf.exe	RegSvcs.exe

Checks processor information in registry 2 TTPs 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

dw20.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

dw20.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

dw20.exe

description pid process

Token: SeBackupPrivilege 2356 dw20.exe
Token: SeBackupPrivilege 2356 dw20.exe

description	pid	process
Token: SeBackupPrivilege	2356	dw20.exe
Token: SeBackupPrivilege	2356	dw20.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

overdue invoice.pdf.exeRegSvcs.exe

description	pid	process	target process
PID 4476 wrote to memory of 1640	4476	overdue invoice.pdf.exe	RegSvcs.exe
PID 4476 wrote to memory of 1640	4476	overdue invoice.pdf.exe	RegSvcs.exe
PID 4476 wrote to memory of 1640	4476	overdue invoice.pdf.exe	RegSvcs.exe
PID 4476 wrote to memory of 1640	4476	overdue invoice.pdf.exe	RegSvcs.exe
PID 4476 wrote to memory of 1640	4476	overdue invoice.pdf.exe	RegSvcs.exe
PID 4476 wrote to memory of 1640	4476	overdue invoice.pdf.exe	RegSvcs.exe
PID 4476 wrote to memory of 1640	4476	overdue invoice.pdf.exe	RegSvcs.exe
PID 4476 wrote to memory of 1640	4476	overdue invoice.pdf.exe	RegSvcs.exe
PID 1640 wrote to memory of 2356	1640	RegSvcs.exe	dw20.exe
PID 1640 wrote to memory of 2356	1640	RegSvcs.exe	dw20.exe
PID 1640 wrote to memory of 2356	1640	RegSvcs.exe	dw20.exe

C:\Users\Admin\AppData\Local\Temp\overdue invoice.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\overdue invoice.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4476

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
"{path}"
2⤵
- Suspicious use of WriteProcessMemory
PID:1640

C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
dw20.exe -x -s 776
3⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
PID:2356

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1640-131-0x0000000000000000-mapping.dmp

Download
memory/1640-132-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1640-134-0x0000000074F30000-0x00000000754E1000-memory.dmp

Filesize
5.7MB

Download
memory/2356-133-0x0000000000000000-mapping.dmp

Download
memory/4476-130-0x0000000074F30000-0x00000000754E1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads