agenttesla | 6ae09da6c46ebbcf7349275f0df74d6e5f652141fdd1ee73505f9a02d00d1a7e

General

Target

_CNXTHG2.EXE
Size

597KB
MD5

6e0929f7dd27fbd8a1e8dcc5ce64a8ab
SHA1

4b7d56b114757b315531e793ec1a350cc9c260e8
SHA256

0ddffa900afacce4077361358e7b2b84efcec6a89814d21cff463976070f2be7
SHA512

bfa4d9bc057c2cdd2c74a01042eaaade3123a4602354f1ce4a904beed8f5a01142943df7bd443764a2b1250a6b1e5b39e2205bbe097abdb69a5522d49cff57ce

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.omindexgroup.com/
Port:
21
Username:
[email protected]
Password:
UfB@t!s%IxwV

Signatures

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

AgentTesla Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1244-124-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/1244-125-0x00000000004375FE-mapping.dmp	family_agenttesla

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

_CNXTHG2.EXE

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	_CNXTHG2.EXE
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	_CNXTHG2.EXE
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	_CNXTHG2.EXE

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

_CNXTHG2.EXE

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run\newapp = "C:\\Users\\Admin\\AppData\\Roaming\\newapp\\newapp.exe"	_CNXTHG2.EXE

Suspicious use of SetThreadContext 1 IoCs

Processes:

_CNXTHG2.EXE

description pid process target process

PID 2188 set thread context of 1244 2188 _CNXTHG2.EXE _CNXTHG2.EXE
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

_CNXTHG2.EXE_CNXTHG2.EXE

pid process

2188 _CNXTHG2.EXE
2188 _CNXTHG2.EXE
2188 _CNXTHG2.EXE
2188 _CNXTHG2.EXE
1244 _CNXTHG2.EXE
1244 _CNXTHG2.EXE
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

_CNXTHG2.EXE_CNXTHG2.EXE

description pid process

Token: SeDebugPrivilege 2188 _CNXTHG2.EXE
Token: SeDebugPrivilege 1244 _CNXTHG2.EXE
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

_CNXTHG2.EXE

pid process

1244 _CNXTHG2.EXE

description	pid	process	target process
PID 2188 set thread context of 1244	2188	_CNXTHG2.EXE	_CNXTHG2.EXE

pid	process
2188	_CNXTHG2.EXE
2188	_CNXTHG2.EXE
2188	_CNXTHG2.EXE
2188	_CNXTHG2.EXE
1244	_CNXTHG2.EXE
1244	_CNXTHG2.EXE

description	pid	process
Token: SeDebugPrivilege	2188	_CNXTHG2.EXE
Token: SeDebugPrivilege	1244	_CNXTHG2.EXE

pid	process
1244	_CNXTHG2.EXE

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

_CNXTHG2.EXE

description	pid	process	target process
PID 2188 wrote to memory of 744	2188	_CNXTHG2.EXE	_CNXTHG2.EXE
PID 2188 wrote to memory of 744	2188	_CNXTHG2.EXE	_CNXTHG2.EXE
PID 2188 wrote to memory of 744	2188	_CNXTHG2.EXE	_CNXTHG2.EXE
PID 2188 wrote to memory of 1032	2188	_CNXTHG2.EXE	_CNXTHG2.EXE
PID 2188 wrote to memory of 1032	2188	_CNXTHG2.EXE	_CNXTHG2.EXE
PID 2188 wrote to memory of 1032	2188	_CNXTHG2.EXE	_CNXTHG2.EXE
PID 2188 wrote to memory of 1244	2188	_CNXTHG2.EXE	_CNXTHG2.EXE
PID 2188 wrote to memory of 1244	2188	_CNXTHG2.EXE	_CNXTHG2.EXE
PID 2188 wrote to memory of 1244	2188	_CNXTHG2.EXE	_CNXTHG2.EXE
PID 2188 wrote to memory of 1244	2188	_CNXTHG2.EXE	_CNXTHG2.EXE
PID 2188 wrote to memory of 1244	2188	_CNXTHG2.EXE	_CNXTHG2.EXE
PID 2188 wrote to memory of 1244	2188	_CNXTHG2.EXE	_CNXTHG2.EXE
PID 2188 wrote to memory of 1244	2188	_CNXTHG2.EXE	_CNXTHG2.EXE
PID 2188 wrote to memory of 1244	2188	_CNXTHG2.EXE	_CNXTHG2.EXE

outlook_office_path 1 IoCs

Processes:

_CNXTHG2.EXE

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	_CNXTHG2.EXE

outlook_win_path 1 IoCs

Processes:

_CNXTHG2.EXE

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	_CNXTHG2.EXE

C:\Users\Admin\AppData\Local\Temp\_CNXTHG2.EXE
"C:\Users\Admin\AppData\Local\Temp\_CNXTHG2.EXE"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2188

C:\Users\Admin\AppData\Local\Temp\_CNXTHG2.EXE
"C:\Users\Admin\AppData\Local\Temp\_CNXTHG2.EXE"
2⤵
PID:744

C:\Users\Admin\AppData\Local\Temp\_CNXTHG2.EXE
"C:\Users\Admin\AppData\Local\Temp\_CNXTHG2.EXE"
2⤵
PID:1032

C:\Users\Admin\AppData\Local\Temp\_CNXTHG2.EXE
"C:\Users\Admin\AppData\Local\Temp\_CNXTHG2.EXE"
2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1244

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\_CNXTHG2.EXE.log

MD5
0c2899d7c6746f42d5bbe088c777f94c

SHA1
622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

SHA256
5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

SHA512
ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

Download Submit
memory/1244-124-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1244-133-0x0000000005DF0000-0x0000000005DF1000-memory.dmp

Filesize
4KB

Download
memory/1244-132-0x00000000052C0000-0x00000000052C1000-memory.dmp

Filesize
4KB

Download
memory/1244-131-0x00000000051D0000-0x00000000051D1000-memory.dmp

Filesize
4KB

Download
memory/1244-125-0x00000000004375FE-mapping.dmp

Download
memory/2188-119-0x0000000004DD0000-0x00000000052CE000-memory.dmp

Filesize
5.0MB

Download
memory/2188-123-0x000000000ADF0000-0x000000000AE48000-memory.dmp

Filesize
352KB

Download
memory/2188-122-0x00000000051E0000-0x00000000051E8000-memory.dmp

Filesize
32KB

Download
memory/2188-121-0x000000000AAA0000-0x000000000AAA1000-memory.dmp

Filesize
4KB

Download
memory/2188-120-0x0000000004D90000-0x0000000004D91000-memory.dmp

Filesize
4KB

Download
memory/2188-115-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2188-118-0x0000000004DD0000-0x0000000004DD1000-memory.dmp

Filesize
4KB

Download
memory/2188-117-0x00000000052D0000-0x00000000052D1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads