agenttesla | ea8779bb436427af92289d75ee7510e1784bf6772729091abcc350cdf773058c

Analysis

max time kernel
13s
max time network
12s
platform
windows11-21h2_x64
resource
win11-20240611-en
resource tags

arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system
submitted
28-06-2024 19:58

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General

Target

WZAgent (1).exe
Size

26.2MB
MD5

4cf978f2749291d8d9a722cf8bd9d9ea
SHA1

2580a9be8bc6994987cc4951a4690efd7077ea92
SHA256

ea8779bb436427af92289d75ee7510e1784bf6772729091abcc350cdf773058c
SHA512

d1ba2ea6a06cf5241bd26319b7bd2da7cb3ca0453496703fa66413cc56edf9893414a970dfb67451cfb85ef735305986958ba852287b3dc63b7cf28ab351d61d
SSDEEP

786432:Ov1EWULlsocwpd3XHEquH6rdEePFG/7vG43EY6:Ov1EWusor8j6r714

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/1428-23-0x0000000020350000-0x0000000020542000-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 (1).exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ WZAgent (1).exe

resource	yara_rule
behavioral1/memory/1428-23-0x0000000020350000-0x0000000020542000-memory.dmp	family_agenttesla

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	WZAgent (1).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 (1).exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	WZAgent (1).exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	WZAgent (1).exe

Loads dropped DLL 1 IoCs

Processes:

WZAgent (1).exe

pid process

1428 WZAgent (1).exe
Obfuscated with Agile.Net obfuscator 2 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/1428-7-0x0000000000400000-0x0000000002606000-memory.dmp agile_net
behavioral1/memory/1428-8-0x0000000000400000-0x0000000002606000-memory.dmp agile_net

pid	process
1428	WZAgent (1).exe

resource	yara_rule
behavioral1/memory/1428-7-0x0000000000400000-0x0000000002606000-memory.dmp	agile_net
behavioral1/memory/1428-8-0x0000000000400000-0x0000000002606000-memory.dmp	agile_net

Themida packer 6 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/1428-7-0x0000000000400000-0x0000000002606000-memory.dmp	themida
behavioral1/memory/1428-8-0x0000000000400000-0x0000000002606000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\883e7960-a7ed-4b7f-b414-8446eabbb7d5\AgileDotNetRT64.dll	themida
behavioral1/memory/1428-15-0x00007FF945850000-0x00007FF946379000-memory.dmp	themida
behavioral1/memory/1428-17-0x00007FF945850000-0x00007FF946379000-memory.dmp	themida
behavioral1/memory/1428-25-0x00007FF945850000-0x00007FF946379000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

WZAgent (1).exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA WZAgent (1).exe
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

WZAgent (1).exe

pid process

1428 WZAgent (1).exe
1428 WZAgent (1).exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

WZAgent (1).exe

description pid process

Token: SeDebugPrivilege 1428 WZAgent (1).exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	WZAgent (1).exe

pid	process
1428	WZAgent (1).exe
1428	WZAgent (1).exe

description	pid	process
Token: SeDebugPrivilege	1428	WZAgent (1).exe

C:\Users\Admin\AppData\Local\Temp\WZAgent (1).exe
"C:\Users\Admin\AppData\Local\Temp\WZAgent (1).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:1428

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\883e7960-a7ed-4b7f-b414-8446eabbb7d5\AgileDotNetRT64.dll
Filesize
4.0MB

MD5
8e839b26c5efed6f41d6e854e5e97f5b

SHA1
5cb71374f72bf6a63ff65a6cda57ff66c3e54836

SHA256
1f2489fcd11f85db723f977f068988e81ed28581a4aec352ba4a2dc31419a011

SHA512
92446d7c2ccf41408d0a6be604b9aba3050192b40be887c2cee8f9aea0bd855503d6b827a8bdd554addd8d7c8ec947033f49060db493f756c3b2b70c04a17093

Download Submit
memory/1428-15-0x00007FF945850000-0x00007FF946379000-memory.dmp

Filesize
11.2MB

Download
memory/1428-17-0x00007FF945850000-0x00007FF946379000-memory.dmp

Filesize
11.2MB

Download
memory/1428-0-0x0000000000400000-0x0000000002606000-memory.dmp

Filesize
34.0MB

Download
memory/1428-4-0x00007FF968580000-0x00007FF96863D000-memory.dmp

Filesize
756KB

Download
memory/1428-7-0x0000000000400000-0x0000000002606000-memory.dmp

Filesize
34.0MB

Download
memory/1428-8-0x0000000000400000-0x0000000002606000-memory.dmp

Filesize
34.0MB

Download
memory/1428-2-0x00007FF968580000-0x00007FF96863D000-memory.dmp

Filesize
756KB

Download
memory/1428-1-0x00007FF96859A000-0x00007FF96859B000-memory.dmp

Filesize
4KB

Download
memory/1428-3-0x00007FF968580000-0x00007FF96863D000-memory.dmp

Filesize
756KB

Download
memory/1428-20-0x00007FF95B370000-0x00007FF95B4BF000-memory.dmp

Filesize
1.3MB

Download
memory/1428-21-0x0000000021010000-0x0000000021E68000-memory.dmp

Filesize
14.3MB

Download
memory/1428-22-0x000000001E130000-0x000000001E1A6000-memory.dmp

Filesize
472KB

Download
memory/1428-23-0x0000000020350000-0x0000000020542000-memory.dmp

Filesize
1.9MB

Download
memory/1428-25-0x00007FF945850000-0x00007FF946379000-memory.dmp

Filesize
11.2MB

Download
memory/1428-26-0x0000000000400000-0x0000000002606000-memory.dmp

Filesize
34.0MB

Download