agenttesla | 2b66f281d169ad5c0c0336e7103e0ee54e84aee9f13967b36e0dc0a42c68c9bd

General

Target

INQUIRY.exe
Size

788KB
MD5

3e1ce4482af66384f14f0d8f425798ae
SHA1

2a299426b2a312c2191016d275bc8cd40b75857d
SHA256

63c152f50aff4247987b0b26ff48db0f75a52e5acfddc034c6fcee54c429933e
SHA512

80860c702b6c8fdfb3355ec511ed87ce218d73c8492716599d3293d8e4d716d7ab2f3dfedca20e00159a931ec058fa203a43a395b52fb5bd493b05bef900b62f

Score

10^/10

agenttesla evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.millndustries.com
Port:
587
Username:
[email protected]
Password:
{zdog:g7S@R3

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/428-61-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla
behavioral1/memory/428-62-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla
behavioral1/memory/428-63-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla
behavioral1/memory/428-64-0x00000000004542FE-mapping.dmp	family_agenttesla
behavioral1/memory/428-66-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla
behavioral1/memory/428-68-0x0000000000400000-0x000000000045A000-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:

INQUIRY.exe

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

INQUIRY.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

INQUIRY.exe

description pid process target process

PID 1892 set thread context of 428 1892 INQUIRY.exe INQUIRY.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

1852 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

INQUIRY.exeINQUIRY.exe

pid process

1892 INQUIRY.exe
1892 INQUIRY.exe
428 INQUIRY.exe
428 INQUIRY.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

INQUIRY.exeINQUIRY.exe

description pid process

Token: SeDebugPrivilege 1892 INQUIRY.exe
Token: SeDebugPrivilege 428 INQUIRY.exe

description	pid	process	target process
PID 1892 set thread context of 428	1892	INQUIRY.exe	INQUIRY.exe

pid	process
1852	schtasks.exe

pid	process
1892	INQUIRY.exe
1892	INQUIRY.exe
428	INQUIRY.exe
428	INQUIRY.exe

description	pid	process
Token: SeDebugPrivilege	1892	INQUIRY.exe
Token: SeDebugPrivilege	428	INQUIRY.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

INQUIRY.exe

description	pid	process	target process
PID 1892 wrote to memory of 1852	1892	INQUIRY.exe	schtasks.exe
PID 1892 wrote to memory of 1852	1892	INQUIRY.exe	schtasks.exe
PID 1892 wrote to memory of 1852	1892	INQUIRY.exe	schtasks.exe
PID 1892 wrote to memory of 1852	1892	INQUIRY.exe	schtasks.exe
PID 1892 wrote to memory of 640	1892	INQUIRY.exe	INQUIRY.exe
PID 1892 wrote to memory of 640	1892	INQUIRY.exe	INQUIRY.exe
PID 1892 wrote to memory of 640	1892	INQUIRY.exe	INQUIRY.exe
PID 1892 wrote to memory of 640	1892	INQUIRY.exe	INQUIRY.exe
PID 1892 wrote to memory of 428	1892	INQUIRY.exe	INQUIRY.exe
PID 1892 wrote to memory of 428	1892	INQUIRY.exe	INQUIRY.exe
PID 1892 wrote to memory of 428	1892	INQUIRY.exe	INQUIRY.exe
PID 1892 wrote to memory of 428	1892	INQUIRY.exe	INQUIRY.exe
PID 1892 wrote to memory of 428	1892	INQUIRY.exe	INQUIRY.exe
PID 1892 wrote to memory of 428	1892	INQUIRY.exe	INQUIRY.exe
PID 1892 wrote to memory of 428	1892	INQUIRY.exe	INQUIRY.exe
PID 1892 wrote to memory of 428	1892	INQUIRY.exe	INQUIRY.exe
PID 1892 wrote to memory of 428	1892	INQUIRY.exe	INQUIRY.exe

C:\Users\Admin\AppData\Local\Temp\INQUIRY.exe
"C:\Users\Admin\AppData\Local\Temp\INQUIRY.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:1892

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NZzDkPTGGai" /XML "C:\Users\Admin\AppData\Local\Temp\tmp90DB.tmp"
2⤵
- Creates scheduled task(s)
PID:1852

C:\Users\Admin\AppData\Local\Temp\INQUIRY.exe
"C:\Users\Admin\AppData\Local\Temp\INQUIRY.exe"
2⤵
PID:640

C:\Users\Admin\AppData\Local\Temp\INQUIRY.exe
"C:\Users\Admin\AppData\Local\Temp\INQUIRY.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:428

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp90DB.tmp

Filesize
1KB

MD5
909ba30bc1f54999453956586ea12424

SHA1
91deb57bd58348a095f3aae82c41a3a8d45991b0

SHA256
4c4747d6cf6b0c1c1fe7111620f1380213f92bdb5469a823d599ff431ea56436

SHA512
26f2e763f0175001c74107e59f8956764536d53777bfe489612a202a281345cae960e568096fc2044ffc299a8e95fc86b52a6c5712bd1c6249ac911fa4ed7c70

Download Submit
memory/428-61-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/428-58-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/428-59-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/428-62-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/428-63-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/428-64-0x00000000004542FE-mapping.dmp

Download
memory/428-66-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/428-68-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/428-70-0x0000000074A30000-0x0000000074FDB000-memory.dmp

Filesize
5.7MB

Download
memory/1852-56-0x0000000000000000-mapping.dmp

Download
memory/1892-55-0x0000000074A30000-0x0000000074FDB000-memory.dmp

Filesize
5.7MB

Download
memory/1892-54-0x0000000075801000-0x0000000075803000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads