agenttesla | 452465e6ae5ed95bac8429eb7517fd5591c872932a352f33932dec36308e7b51

General

Target

bestelling0617_img.exe
Size

801KB
MD5

90cc17cfab3f7a33b6e75bc6d95af453
SHA1

2db5b5fe345cdc5b508880c1559706640c83009a
SHA256

c05f2597d7eefa874b49a615c112274a2d19e2149a420194aa428be36695268e
SHA512

746728a647cf3c4e8119158c753b5e4b18c53e14c562c06583872657078f25cf5b4323c08a6a1a00edb0bdca3e3db6b2cbb9bdc8e6272fb0c7960ed8602e2484

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

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/784-64-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla
behavioral1/memory/784-65-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla
behavioral1/memory/784-66-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla
behavioral1/memory/784-67-0x0000000000454AAE-mapping.dmp	family_agenttesla
behavioral1/memory/784-70-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla
behavioral1/memory/784-72-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla

Executes dropped EXE 1 IoCs

Processes:

RegAsm.exe

pid process

784 RegAsm.exe
Loads dropped DLL 2 IoCs

Processes:

bestelling0617_img.exeRegAsm.exe

pid process

2008 bestelling0617_img.exe
784 RegAsm.exe
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
T1081
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
T1081
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
T1081

pid	process
784	RegAsm.exe

pid	process
2008	bestelling0617_img.exe
784	RegAsm.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

bestelling0617_img.exe

description pid process target process

PID 2008 set thread context of 784 2008 bestelling0617_img.exe RegAsm.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

bestelling0617_img.exeRegAsm.exe

pid process

2008 bestelling0617_img.exe
2008 bestelling0617_img.exe
2008 bestelling0617_img.exe
784 RegAsm.exe
784 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

bestelling0617_img.exeRegAsm.exe

description pid process

Token: SeDebugPrivilege 2008 bestelling0617_img.exe
Token: SeDebugPrivilege 784 RegAsm.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

DllHost.exe

pid process

1372 DllHost.exe

description	pid	process	target process
PID 2008 set thread context of 784	2008	bestelling0617_img.exe	RegAsm.exe

pid	process
2008	bestelling0617_img.exe
2008	bestelling0617_img.exe
2008	bestelling0617_img.exe
784	RegAsm.exe
784	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	2008	bestelling0617_img.exe
Token: SeDebugPrivilege	784	RegAsm.exe

pid	process
1372	DllHost.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

bestelling0617_img.exe

description	pid	process	target process
PID 2008 wrote to memory of 784	2008	bestelling0617_img.exe	RegAsm.exe
PID 2008 wrote to memory of 784	2008	bestelling0617_img.exe	RegAsm.exe
PID 2008 wrote to memory of 784	2008	bestelling0617_img.exe	RegAsm.exe
PID 2008 wrote to memory of 784	2008	bestelling0617_img.exe	RegAsm.exe
PID 2008 wrote to memory of 784	2008	bestelling0617_img.exe	RegAsm.exe
PID 2008 wrote to memory of 784	2008	bestelling0617_img.exe	RegAsm.exe
PID 2008 wrote to memory of 784	2008	bestelling0617_img.exe	RegAsm.exe
PID 2008 wrote to memory of 784	2008	bestelling0617_img.exe	RegAsm.exe
PID 2008 wrote to memory of 784	2008	bestelling0617_img.exe	RegAsm.exe
PID 2008 wrote to memory of 784	2008	bestelling0617_img.exe	RegAsm.exe
PID 2008 wrote to memory of 784	2008	bestelling0617_img.exe	RegAsm.exe
PID 2008 wrote to memory of 784	2008	bestelling0617_img.exe	RegAsm.exe

outlook_office_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\bestelling0617_img.exe
"C:\Users\Admin\AppData\Local\Temp\bestelling0617_img.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2008

C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
"C:\Users\Admin\AppData\Local\Temp\RegAsm.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:784

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Suspicious use of FindShellTrayWindow
PID:1372

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
Filesize
63KB

MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

Download Submit
C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
Filesize
63KB

MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

Download Submit
C:\Users\Admin\Desktop\Purchase-Order9206.jpg
Filesize
43KB

MD5
7ba49b11471ba55f6a26f3c72ad420d5

SHA1
c21fb0fb3096a6d694ed0507667330b05e557f53

SHA256
f6d74b2258d02a8289dfd2be843ceef19befe9f7a46678fc855374e6eac82aae

SHA512
03c240084ab85123f67e66b8a8a7ad7eaad8700bc28ce94ba5c130468a659ee37bbcebdc40d536776b83af5cf2acf64e230ede9d4695d62d6f652ba29c947bd1

Download Submit
\Users\Admin\AppData\Local\Temp\RegAsm.exe
Filesize
63KB

MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

Download Submit
\Users\Admin\AppData\Local\Temp\RegAsm.exe
Filesize
63KB

MD5
b58b926c3574d28d5b7fdd2ca3ec30d5

SHA1
d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

SHA256
6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

SHA512
b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

Download Submit
memory/784-64-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/784-61-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/784-62-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/784-65-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/784-66-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/784-67-0x0000000000454AAE-mapping.dmp

Download
memory/784-70-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/784-72-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/2008-54-0x0000000000960000-0x0000000000A2E000-memory.dmp

Filesize
824KB

Download
memory/2008-59-0x0000000001FE0000-0x0000000001FEA000-memory.dmp

Filesize
40KB

Download
memory/2008-56-0x0000000000340000-0x0000000000354000-memory.dmp

Filesize
80KB

Download
memory/2008-55-0x0000000075DB1000-0x0000000075DB3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads