agenttesla | 4bcc19c324294a3b92ed5067ca495f51a05362edcb2cf7c09d8619842a25a99c

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
15-05-2024 14:41

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General

Target

Copy7510785002.exe
Size

4.7MB
MD5

40015adb59181ae2bc09e0f271373188
SHA1

f1690da2e26e5a7d31d3cce7b74a6185f60333f5
SHA256

4bcc19c324294a3b92ed5067ca495f51a05362edcb2cf7c09d8619842a25a99c
SHA512

e5cbf81c29bb44dbee01474e15bef92211f70b57f91489ca963e0f91cab7077081453ee2d2f833e7002d96fd0bdd8a70af3263d4ec548f2af22e4a672a893145
SSDEEP

24576:ULwV1goQrA9eYALPzgpICbdW/G/4ceP81kxr/wKXo4p/PGqA/v3MnU2ZRZhRVHTa:U0Vn

Score

10^/10

agenttesla asyncrat zgrat april3rd2024 keylogger persistence rat spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
66.29.151.236
Port:
587
Username:
[email protected]
Password:
s9jjoVvaZchS

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

April3rd2024

94.156.65.181:3434

Mutex

A234sdgrgMutex_6SI8OkPnk

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
66.29.151.236
Port:
587
Username:
[email protected]
Password:
s9jjoVvaZchS
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Detect ZGRat V1 34 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2304-2-0x0000000006F40000-0x0000000007176000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-12-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-16-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-46-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-66-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-68-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-64-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-62-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-60-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-58-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-56-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-54-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-52-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-50-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-48-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-44-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-42-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-38-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-36-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-40-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-32-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-30-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-26-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-24-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-20-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-18-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-14-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-10-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-34-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-8-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-28-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-6-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-23-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1
behavioral2/memory/2304-5-0x0000000006F40000-0x0000000007171000-memory.dmp	family_zgrat_v1

ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat
Async RAT payload 1 IoCs
rat

Processes:

resource yara_rule

C:\Users\Admin\AppData\Local\Temp\FB_7C36.tmp.exe family_asyncrat
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

RegAsm.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation RegAsm.exe
Executes dropped EXE 2 IoCs

Processes:

FB_7BC7.tmp.exeFB_7C36.tmp.exe

pid process

3108 FB_7BC7.tmp.exe
4712 FB_7C36.tmp.exe
Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\FB_7C36.tmp.exe	family_asyncrat

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation	RegAsm.exe

pid	process
3108	FB_7BC7.tmp.exe
4712	FB_7C36.tmp.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Copy7510785002.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\oouvef = "C:\\Users\\Admin\\AppData\\Roaming\\oouvef.exe"	Copy7510785002.exe

Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

22 api.ipify.org
23 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

Copy7510785002.exe

description pid process target process

PID 2304 set thread context of 1632 2304 Copy7510785002.exe RegAsm.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

FB_7BC7.tmp.exe

pid process

3108 FB_7BC7.tmp.exe
3108 FB_7BC7.tmp.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Copy7510785002.exeFB_7BC7.tmp.exe

description pid process

Token: SeDebugPrivilege 2304 Copy7510785002.exe
Token: SeDebugPrivilege 2304 Copy7510785002.exe
Token: SeDebugPrivilege 3108 FB_7BC7.tmp.exe

flow	ioc
22	api.ipify.org
23	api.ipify.org

description	pid	process	target process
PID 2304 set thread context of 1632	2304	Copy7510785002.exe	RegAsm.exe

pid	process
3108	FB_7BC7.tmp.exe
3108	FB_7BC7.tmp.exe

description	pid	process
Token: SeDebugPrivilege	2304	Copy7510785002.exe
Token: SeDebugPrivilege	2304	Copy7510785002.exe
Token: SeDebugPrivilege	3108	FB_7BC7.tmp.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Copy7510785002.exeRegAsm.exe

description	pid	process	target process
PID 2304 wrote to memory of 1632	2304	Copy7510785002.exe	RegAsm.exe
PID 2304 wrote to memory of 1632	2304	Copy7510785002.exe	RegAsm.exe
PID 2304 wrote to memory of 1632	2304	Copy7510785002.exe	RegAsm.exe
PID 2304 wrote to memory of 1632	2304	Copy7510785002.exe	RegAsm.exe
PID 2304 wrote to memory of 1632	2304	Copy7510785002.exe	RegAsm.exe
PID 2304 wrote to memory of 1632	2304	Copy7510785002.exe	RegAsm.exe
PID 2304 wrote to memory of 1632	2304	Copy7510785002.exe	RegAsm.exe
PID 2304 wrote to memory of 1632	2304	Copy7510785002.exe	RegAsm.exe
PID 2304 wrote to memory of 1632	2304	Copy7510785002.exe	RegAsm.exe
PID 1632 wrote to memory of 3108	1632	RegAsm.exe	FB_7BC7.tmp.exe
PID 1632 wrote to memory of 3108	1632	RegAsm.exe	FB_7BC7.tmp.exe
PID 1632 wrote to memory of 3108	1632	RegAsm.exe	FB_7BC7.tmp.exe
PID 1632 wrote to memory of 4712	1632	RegAsm.exe	FB_7C36.tmp.exe
PID 1632 wrote to memory of 4712	1632	RegAsm.exe	FB_7C36.tmp.exe
PID 1632 wrote to memory of 4712	1632	RegAsm.exe	FB_7C36.tmp.exe

C:\Users\Admin\AppData\Local\Temp\Copy7510785002.exe
"C:\Users\Admin\AppData\Local\Temp\Copy7510785002.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2304

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1632

C:\Users\Admin\AppData\Local\Temp\FB_7BC7.tmp.exe
"C:\Users\Admin\AppData\Local\Temp\FB_7BC7.tmp.exe"
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3108

C:\Users\Admin\AppData\Local\Temp\FB_7C36.tmp.exe
"C:\Users\Admin\AppData\Local\Temp\FB_7C36.tmp.exe"
3⤵
- Executes dropped EXE
PID:4712

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\FB_7BC7.tmp.exe
Filesize
237KB

MD5
8c4c985b5719d0acadafb2cc03f0e86e

SHA1
0e0644087a29575b5c4a1d3b76a79cf95c577d7b

SHA256
a2007da837ca22cd0e894946f9ce20a3352ac42c34c5930c159730ea4538e79b

SHA512
8255101de0ed591128c5d093cd683193a24f5044fc297e6e51ae58714b121164b480c9868c477c24d653a231dc17db4c5f78de9ccc084e14133cc95e14e6219c

Download Submit
C:\Users\Admin\AppData\Local\Temp\FB_7C36.tmp.exe
Filesize
45KB

MD5
ac190c9e687b2c110354d3809d32a57d

SHA1
3fdfeca134e469f6ac42e03b3d39359313fb36fc

SHA256
6c0291916555438da7d3705991100d295d480ae58b98147a4d83fbd3cfb8dc19

SHA512
161ae735acf5b60c6c906c1b0223838987a24cbb410623af2495b31e2e663561a6ecf1ad5f08956a6fb2134ebd32aaaa1573bae7e1c4abdfb7fb0ca8b2a9ecb5

Download Submit
memory/2304-26-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-4887-0x0000000007400000-0x0000000007472000-memory.dmp

Filesize
456KB

Download
memory/2304-0-0x0000000074C4E000-0x0000000074C4F000-memory.dmp

Filesize
4KB

Download
memory/2304-3-0x0000000007730000-0x0000000007CD4000-memory.dmp

Filesize
5.6MB

Download
memory/2304-4-0x0000000007220000-0x00000000072B2000-memory.dmp

Filesize
584KB

Download
memory/2304-12-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-16-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-46-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-66-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-68-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-64-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-62-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-60-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-58-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-56-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-54-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-52-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-50-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-48-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-44-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-42-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-38-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-36-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-40-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-32-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-30-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-2-0x0000000006F40000-0x0000000007176000-memory.dmp

Filesize
2.2MB

Download
memory/2304-24-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-20-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-18-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-14-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-10-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-34-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-8-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-28-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-6-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-23-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-5-0x0000000006F40000-0x0000000007171000-memory.dmp

Filesize
2.2MB

Download
memory/2304-4885-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/2304-4886-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/2304-1-0x0000000000E30000-0x00000000012E2000-memory.dmp

Filesize
4.7MB

Download
memory/2304-4888-0x00000000074C0000-0x000000000750C000-memory.dmp

Filesize
304KB

Download
memory/2304-4889-0x0000000007510000-0x0000000007564000-memory.dmp

Filesize
336KB

Download
memory/2304-4898-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/3108-4921-0x0000000000230000-0x0000000000272000-memory.dmp

Filesize
264KB

Download
memory/3108-4922-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download
memory/3108-4924-0x0000000004C90000-0x0000000004CF6000-memory.dmp

Filesize
408KB

Download
memory/3108-4925-0x00000000061A0000-0x00000000061F0000-memory.dmp

Filesize
320KB

Download
memory/3108-4926-0x0000000006290000-0x000000000632C000-memory.dmp

Filesize
624KB

Download
memory/3108-4927-0x0000000006360000-0x000000000636A000-memory.dmp

Filesize
40KB

Download
memory/3108-4928-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download
memory/4712-4920-0x0000000000320000-0x0000000000332000-memory.dmp

Filesize
72KB

Download
memory/4712-4923-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download
memory/4712-4929-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download