agenttesla | fc7eb157162927439876c4562b5384cc68db185bfcf91335c8c7edc1d2dcf5ff

General

Target

WZAgent.exe
Size

24.3MB
MD5

2812e3412cdfde43d093addd686f7541
SHA1

6044220194e89f9e4054ae049708aa364f4a2557
SHA256

fc7eb157162927439876c4562b5384cc68db185bfcf91335c8c7edc1d2dcf5ff
SHA512

8fa3035a2959854971539d0b62594c152c25417a6c55581eb91510730aed661e97698685a3566f7ade939cb1c55429f6b73fd9159f04de6e78571e55de2148a9
SSDEEP

393216:T/2gRyBpa4UEQ7mMzVR0/p/I3Eqg8OqnYTOWxhXNPQfLtCwzIuDSMivX:TupzUEQ7mkVR0RI/OqnYtdPY9SxvX

Score

10^/10

agenttesla agilenet evasion keylogger spyware stealer themida trojan

Malware Config

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
behavioral1/memory/4100-24-0x0000000020E70000-0x0000000021062000-memory.dmp	family_agenttesla

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

WZAgent.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ WZAgent.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	WZAgent.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:

WZAgent.exe

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

Loads dropped DLL 1 IoCs

Processes:

WZAgent.exe

pid process

4100 WZAgent.exe

pid	process
4100	WZAgent.exe

Obfuscated with Agile.Net obfuscator 3 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

Processes:

resource	yara_rule
behavioral1/memory/4100-6-0x0000000000400000-0x00000000023C0000-memory.dmp	agile_net
behavioral1/memory/4100-7-0x0000000000400000-0x00000000023C0000-memory.dmp	agile_net
behavioral1/memory/4100-34-0x0000000000400000-0x00000000023C0000-memory.dmp	agile_net

Themida packer 8 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/4100-6-0x0000000000400000-0x00000000023C0000-memory.dmp	themida
behavioral1/memory/4100-7-0x0000000000400000-0x00000000023C0000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\67086c7f-8595-4935-b455-2a765bd8e033\AgileDotNetRT64.dll	themida
behavioral1/memory/4100-15-0x00007FF9FB170000-0x00007FF9FBC99000-memory.dmp	themida
behavioral1/memory/4100-17-0x00007FF9FB170000-0x00007FF9FBC99000-memory.dmp	themida
behavioral1/memory/4100-29-0x00007FF9FB170000-0x00007FF9FBC99000-memory.dmp	themida
behavioral1/memory/4100-33-0x00007FF9FB170000-0x00007FF9FBC99000-memory.dmp	themida
behavioral1/memory/4100-34-0x0000000000400000-0x00000000023C0000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

WZAgent.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA WZAgent.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

WZAgent.exe

pid process

4100 WZAgent.exe
4100 WZAgent.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

WZAgent.exe

description pid process

Token: SeDebugPrivilege 4100 WZAgent.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	WZAgent.exe

pid	process
4100	WZAgent.exe
4100	WZAgent.exe

description	pid	process
Token: SeDebugPrivilege	4100	WZAgent.exe

C:\Users\Admin\AppData\Local\Temp\WZAgent.exe
"C:\Users\Admin\AppData\Local\Temp\WZAgent.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
PID:4100

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

Virtualization/Sandbox Evasion

1

T1497

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\67086c7f-8595-4935-b455-2a765bd8e033\AgileDotNetRT64.dll
Filesize
4.0MB

MD5
8e839b26c5efed6f41d6e854e5e97f5b

SHA1
5cb71374f72bf6a63ff65a6cda57ff66c3e54836

SHA256
1f2489fcd11f85db723f977f068988e81ed28581a4aec352ba4a2dc31419a011

SHA512
92446d7c2ccf41408d0a6be604b9aba3050192b40be887c2cee8f9aea0bd855503d6b827a8bdd554addd8d7c8ec947033f49060db493f756c3b2b70c04a17093

Download Submit
memory/4100-17-0x00007FF9FB170000-0x00007FF9FBC99000-memory.dmp

Filesize
11.2MB

Download
memory/4100-5-0x00007FFA1E8E0000-0x00007FFA1EC54000-memory.dmp

Filesize
3.5MB

Download
memory/4100-23-0x000000001EC50000-0x000000001ECC6000-memory.dmp

Filesize
472KB

Download
memory/4100-6-0x0000000000400000-0x00000000023C0000-memory.dmp

Filesize
31.8MB

Download
memory/4100-7-0x0000000000400000-0x00000000023C0000-memory.dmp

Filesize
31.8MB

Download
memory/4100-8-0x00007FFA1E8E0000-0x00007FFA1EC54000-memory.dmp

Filesize
3.5MB

Download
memory/4100-1-0x00007FFA1E939000-0x00007FFA1E93A000-memory.dmp

Filesize
4KB

Download
memory/4100-15-0x00007FF9FB170000-0x00007FF9FBC99000-memory.dmp

Filesize
11.2MB

Download
memory/4100-22-0x0000000021B30000-0x00000000227B6000-memory.dmp

Filesize
12.5MB

Download
memory/4100-0-0x0000000000400000-0x00000000023C0000-memory.dmp

Filesize
31.8MB

Download
memory/4100-35-0x00007FFA1E8E0000-0x00007FFA1EC54000-memory.dmp

Filesize
3.5MB

Download
memory/4100-2-0x00007FFA1E8E0000-0x00007FFA1EC54000-memory.dmp

Filesize
3.5MB

Download
memory/4100-18-0x00007FFA1E8E0000-0x00007FFA1EC54000-memory.dmp

Filesize
3.5MB

Download
memory/4100-24-0x0000000020E70000-0x0000000021062000-memory.dmp

Filesize
1.9MB

Download
memory/4100-25-0x00007FFA1E8E0000-0x00007FFA1EC54000-memory.dmp

Filesize
3.5MB

Download
memory/4100-26-0x0000000000400000-0x00000000023C0000-memory.dmp

Filesize
31.8MB

Download
memory/4100-28-0x0000000004E10000-0x00000000058D2000-memory.dmp

Filesize
10.8MB

Download
memory/4100-29-0x00007FF9FB170000-0x00007FF9FBC99000-memory.dmp

Filesize
11.2MB

Download
memory/4100-32-0x0000000004E10000-0x00000000058D2000-memory.dmp

Filesize
10.8MB

Download
memory/4100-33-0x00007FF9FB170000-0x00007FF9FBC99000-memory.dmp

Filesize
11.2MB

Download
memory/4100-34-0x0000000000400000-0x00000000023C0000-memory.dmp

Filesize
31.8MB

Download
memory/4100-21-0x00007FF9FDBD0000-0x00007FF9FDD1F000-memory.dmp

Filesize
1.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads