agenttesla | 5388210464c4a682e90abb97106518c925647f8c165a21961b74db15d293b446

General

Target

3582133.exe
Size

460KB
MD5

814d60b47619ff47a081818e6d2fdb02
SHA1

3356b6d7a362db8c0aa04afe798870aa6f9ae966
SHA256

e4392c3867a7b38a96f352f3249358e0144717bde4adf6473e5f994904a98bb3
SHA512

edabbcc51509ec59a908616d7d3b43f8e56f99a026e218b8fd6980de382618c83cd890a983a7774517d1853c356f8f6df19173976740a4f774bb0976c9bf43fa

Score

10^/10

agenttesla collection coreentity evasion keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.israelagroconsultant.com
Port:
587
Username:
info@israelagroconsultant.com
Password:
israelagro@123

Signatures

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

CoreEntity .NET Packer 1 IoCs

A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

coreentity

Processes:

resource	yara_rule
behavioral1/memory/1832-56-0x0000000000290000-0x0000000000298000-memory.dmp	coreentity

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1392-61-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1392-62-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1392-63-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1392-64-0x000000000044C75E-mapping.dmp	family_agenttesla
behavioral1/memory/1392-68-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1392-66-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1832-57-0x00000000005E0000-0x0000000000638000-memory.dmp	rezer0

Disables Task Manager via registry modification
evasion
Drops file in Drivers directory 1 IoCs

Processes:

RegSvcs.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	RegSvcs.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

3582133.exe

description pid process target process

PID 1832 set thread context of 1392 1832 3582133.exe RegSvcs.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

1004 REG.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

3582133.exeRegSvcs.exe

pid process

1832 3582133.exe
1832 3582133.exe
1832 3582133.exe
1392 RegSvcs.exe
1392 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

3582133.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 1832 3582133.exe
Token: SeDebugPrivilege 1392 RegSvcs.exe

description	pid	process	target process
PID 1832 set thread context of 1392	1832	3582133.exe	RegSvcs.exe

pid	process
1004	REG.exe

pid	process
1832	3582133.exe
1832	3582133.exe
1832	3582133.exe
1392	RegSvcs.exe
1392	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1832	3582133.exe
Token: SeDebugPrivilege	1392	RegSvcs.exe

Suspicious use of WriteProcessMemory 41 IoCs

Processes:

3582133.exeRegSvcs.exe

description	pid	process	target process
PID 1832 wrote to memory of 936	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 936	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 936	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 936	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 936	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 936	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 936	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 1468	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 1468	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 1468	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 1468	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 1468	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 1468	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 1468	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 608	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 608	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 608	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 608	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 608	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 608	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 608	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 1392	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 1392	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 1392	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 1392	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 1392	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 1392	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 1392	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 1392	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 1392	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 1392	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 1392	1832	3582133.exe	RegSvcs.exe
PID 1832 wrote to memory of 1392	1832	3582133.exe	RegSvcs.exe
PID 1392 wrote to memory of 1004	1392	RegSvcs.exe	REG.exe
PID 1392 wrote to memory of 1004	1392	RegSvcs.exe	REG.exe
PID 1392 wrote to memory of 1004	1392	RegSvcs.exe	REG.exe
PID 1392 wrote to memory of 1004	1392	RegSvcs.exe	REG.exe
PID 1392 wrote to memory of 572	1392	RegSvcs.exe	netsh.exe
PID 1392 wrote to memory of 572	1392	RegSvcs.exe	netsh.exe
PID 1392 wrote to memory of 572	1392	RegSvcs.exe	netsh.exe
PID 1392 wrote to memory of 572	1392	RegSvcs.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\3582133.exe
"C:\Users\Admin\AppData\Local\Temp\3582133.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1832

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
PID:936

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
PID:1468

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
PID:608

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1392

C:\Windows\SysWOW64\REG.exe
REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
3⤵
- Modifies registry key
PID:1004

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:572

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/572-71-0x0000000000000000-mapping.dmp

Download
memory/1004-70-0x0000000000000000-mapping.dmp

Download
memory/1392-64-0x000000000044C75E-mapping.dmp

Download
memory/1392-58-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1392-59-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1392-61-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1392-62-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1392-63-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1392-68-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1392-66-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1832-57-0x00000000005E0000-0x0000000000638000-memory.dmp

Filesize
352KB

Download
memory/1832-54-0x0000000000F80000-0x0000000000FFA000-memory.dmp

Filesize
488KB

Download
memory/1832-56-0x0000000000290000-0x0000000000298000-memory.dmp

Filesize
32KB

Download
memory/1832-55-0x0000000076191000-0x0000000076193000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads