agenttesla | 480399626e44d18f78ed91b3c8340fdcf9fbb3025030d14b35090c8790aa19b0

Analysis

max time kernel
140s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28-03-2024 21:33

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General

Target

PO.exe
Size

640KB
MD5

77d0521505f69632ad6740ff52a29790
SHA1

a771c88ec2e7d267474ced87d047673de3d86df9
SHA256

b36fafecaa9f3252bc38d71ef8d16cff142337c8f5f8e98c414a057277c7cbe1
SHA512

125adc6617aa5fbdab97f5ff84ad6308dcb9bb838f41df410a39f304bc448c52da03a48c84c217272a7fac7593a4a2bbfa6de1f0edaa9527924e1ee7f549f432
SSDEEP

12288:6spOCWdZKUZ+SPwGVG5uzVOfxYxcUR55Oue3UUBTpV501/tQ:BAVdZrZ+SPw5szyWCUHYpV5C/O

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
sg2plcpnl0023.prod.sin2.secureserver.net
Port:
587
Username:
[email protected]
Password:
User@40378

Signatures

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

AgentTesla payload 7 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2632-10-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2632-11-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2632-18-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2632-16-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2632-14-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2632-21-0x00000000041E0000-0x0000000004220000-memory.dmp	family_agenttesla
behavioral1/memory/2632-24-0x00000000041E0000-0x0000000004220000-memory.dmp	family_agenttesla

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-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

RegSvcs.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Run\NXLun = "C:\\Users\\Admin\\AppData\\Roaming\\NXLun\\NXLun.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

PO.exe

description pid process target process

PID 2844 set thread context of 2632 2844 PO.exe RegSvcs.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

PO.exeRegSvcs.exe

pid process

2844 PO.exe
2844 PO.exe
2632 RegSvcs.exe
2632 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PO.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 2844 PO.exe
Token: SeDebugPrivilege 2632 RegSvcs.exe

description	pid	process	target process
PID 2844 set thread context of 2632	2844	PO.exe	RegSvcs.exe

pid	process
2844	PO.exe
2844	PO.exe
2632	RegSvcs.exe
2632	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	2844	PO.exe
Token: SeDebugPrivilege	2632	RegSvcs.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

PO.exe

description	pid	process	target process
PID 2844 wrote to memory of 2632	2844	PO.exe	RegSvcs.exe
PID 2844 wrote to memory of 2632	2844	PO.exe	RegSvcs.exe
PID 2844 wrote to memory of 2632	2844	PO.exe	RegSvcs.exe
PID 2844 wrote to memory of 2632	2844	PO.exe	RegSvcs.exe
PID 2844 wrote to memory of 2632	2844	PO.exe	RegSvcs.exe
PID 2844 wrote to memory of 2632	2844	PO.exe	RegSvcs.exe
PID 2844 wrote to memory of 2632	2844	PO.exe	RegSvcs.exe
PID 2844 wrote to memory of 2632	2844	PO.exe	RegSvcs.exe
PID 2844 wrote to memory of 2632	2844	PO.exe	RegSvcs.exe
PID 2844 wrote to memory of 2632	2844	PO.exe	RegSvcs.exe
PID 2844 wrote to memory of 2632	2844	PO.exe	RegSvcs.exe
PID 2844 wrote to memory of 2632	2844	PO.exe	RegSvcs.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description ioc process

Key opened \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\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-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\PO.exe
"C:\Users\Admin\AppData\Local\Temp\PO.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2844

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2632

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

memory/2632-14-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2632-7-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2632-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2632-11-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2632-26-0x00000000041E0000-0x0000000004220000-memory.dmp

Filesize
256KB

Download
memory/2632-24-0x00000000041E0000-0x0000000004220000-memory.dmp

Filesize
256KB

Download
memory/2632-23-0x0000000074110000-0x00000000747FE000-memory.dmp

Filesize
6.9MB

Download
memory/2632-16-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2632-18-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2632-10-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2632-27-0x00000000041E0000-0x0000000004220000-memory.dmp

Filesize
256KB

Download
memory/2632-21-0x00000000041E0000-0x0000000004220000-memory.dmp

Filesize
256KB

Download
memory/2632-9-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2632-20-0x0000000074110000-0x00000000747FE000-memory.dmp

Filesize
6.9MB

Download
memory/2844-6-0x0000000005E60000-0x0000000005EE2000-memory.dmp

Filesize
520KB

Download
memory/2844-0-0x0000000000340000-0x00000000003E6000-memory.dmp

Filesize
664KB

Download
memory/2844-19-0x0000000074110000-0x00000000747FE000-memory.dmp

Filesize
6.9MB

Download
memory/2844-2-0x0000000004CA0000-0x0000000004CE0000-memory.dmp

Filesize
256KB

Download
memory/2844-1-0x0000000074110000-0x00000000747FE000-memory.dmp

Filesize
6.9MB

Download
memory/2844-5-0x0000000004CA0000-0x0000000004CE0000-memory.dmp

Filesize
256KB

Download
memory/2844-4-0x0000000074110000-0x00000000747FE000-memory.dmp

Filesize
6.9MB

Download
memory/2844-3-0x0000000000490000-0x00000000004A8000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads