agenttesla | 603715e9b17c8bb9ce42224e8ab2699a6cf9f851b992f3af13ae393351d4e54c

General

Target

NHWJOC9C.exe
Size

457KB
MD5

ac32d76fe133ae35db1adf7172ab92ee
SHA1

88f89cbb5dde794c3af43e0d9726749e9944bbaf
SHA256

9bca8f7366390a1fac5bfcc29896ce8d4e75475eb9a3b41af7293e9c6b718451
SHA512

12dbfb6bb8d473011e812fd1956ebad90fbd10bfd18d13f019ff4c59d48c4e74cfb649d5bca9e16f11214f84e7af3c0d9d656027cb939f32e70250651eeebd25

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://asnbanknl.com/
Port:
21
Username:
smartpips
Password:
3mPf4$l2

Protocol: ftp
Host:
ftp://asnbanknl.com/
Port:
21
Username:
smartpips
Password:
3mPf4$l2

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/960-63-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/960-64-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/960-65-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/960-66-0x0000000000446A1E-mapping.dmp	family_agenttesla
behavioral1/memory/960-70-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/960-68-0x0000000000400000-0x000000000044C000-memory.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:

NHWJOC9C.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	NHWJOC9C.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	NHWJOC9C.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	NHWJOC9C.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

NHWJOC9C.exe

description pid process target process

PID 1936 set thread context of 960 1936 NHWJOC9C.exe NHWJOC9C.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1740 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

NHWJOC9C.exeNHWJOC9C.exe

pid process

1936 NHWJOC9C.exe
960 NHWJOC9C.exe
960 NHWJOC9C.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

NHWJOC9C.exeNHWJOC9C.exe

description pid process

Token: SeDebugPrivilege 1936 NHWJOC9C.exe
Token: SeDebugPrivilege 960 NHWJOC9C.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

NHWJOC9C.exe

pid process

960 NHWJOC9C.exe

description	pid	process	target process
PID 1936 set thread context of 960	1936	NHWJOC9C.exe	NHWJOC9C.exe

pid	process
1740	schtasks.exe

pid	process
1936	NHWJOC9C.exe
960	NHWJOC9C.exe
960	NHWJOC9C.exe

description	pid	process
Token: SeDebugPrivilege	1936	NHWJOC9C.exe
Token: SeDebugPrivilege	960	NHWJOC9C.exe

pid	process
960	NHWJOC9C.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

NHWJOC9C.exe

description	pid	process	target process
PID 1936 wrote to memory of 1740	1936	NHWJOC9C.exe	schtasks.exe
PID 1936 wrote to memory of 1740	1936	NHWJOC9C.exe	schtasks.exe
PID 1936 wrote to memory of 1740	1936	NHWJOC9C.exe	schtasks.exe
PID 1936 wrote to memory of 1740	1936	NHWJOC9C.exe	schtasks.exe
PID 1936 wrote to memory of 992	1936	NHWJOC9C.exe	NHWJOC9C.exe
PID 1936 wrote to memory of 992	1936	NHWJOC9C.exe	NHWJOC9C.exe
PID 1936 wrote to memory of 992	1936	NHWJOC9C.exe	NHWJOC9C.exe
PID 1936 wrote to memory of 992	1936	NHWJOC9C.exe	NHWJOC9C.exe
PID 1936 wrote to memory of 960	1936	NHWJOC9C.exe	NHWJOC9C.exe
PID 1936 wrote to memory of 960	1936	NHWJOC9C.exe	NHWJOC9C.exe
PID 1936 wrote to memory of 960	1936	NHWJOC9C.exe	NHWJOC9C.exe
PID 1936 wrote to memory of 960	1936	NHWJOC9C.exe	NHWJOC9C.exe
PID 1936 wrote to memory of 960	1936	NHWJOC9C.exe	NHWJOC9C.exe
PID 1936 wrote to memory of 960	1936	NHWJOC9C.exe	NHWJOC9C.exe
PID 1936 wrote to memory of 960	1936	NHWJOC9C.exe	NHWJOC9C.exe
PID 1936 wrote to memory of 960	1936	NHWJOC9C.exe	NHWJOC9C.exe
PID 1936 wrote to memory of 960	1936	NHWJOC9C.exe	NHWJOC9C.exe

outlook_office_path 1 IoCs

Processes:

NHWJOC9C.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	NHWJOC9C.exe

outlook_win_path 1 IoCs

Processes:

NHWJOC9C.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	NHWJOC9C.exe

C:\Users\Admin\AppData\Local\Temp\NHWJOC9C.exe
"C:\Users\Admin\AppData\Local\Temp\NHWJOC9C.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1936

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qHHcmeNIB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3592.tmp"
2⤵
- Creates scheduled task(s)
PID:1740

C:\Users\Admin\AppData\Local\Temp\NHWJOC9C.exe
"{path}"
2⤵
PID:992

C:\Users\Admin\AppData\Local\Temp\NHWJOC9C.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:960

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

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\tmp3592.tmp

Filesize
1KB

MD5
fe9863297824823353b06d0888f5033e

SHA1
25601f144c5b1bd9ad21d6fd100552977b5bce83

SHA256
d5bbdb890e0107260da75a7c49634f27e8a14ee899d71031d3c57af53cd34bce

SHA512
dace4579a34506de6d2447166b47a93c121b7c0a233580cc2d15a8db4562578f0e524bc3c048905d7a91a2c1ba8efdf801daa3e47f0718119943c9ac971be6a1

Download Submit
memory/960-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/960-60-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/960-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/960-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/960-65-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/960-66-0x0000000000446A1E-mapping.dmp

Download
memory/960-70-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/960-68-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1740-58-0x0000000000000000-mapping.dmp

Download
memory/1936-56-0x00000000041D0000-0x0000000004224000-memory.dmp

Filesize
336KB

Download
memory/1936-57-0x0000000074DD1000-0x0000000074DD3000-memory.dmp

Filesize
8KB

Download
memory/1936-55-0x0000000000240000-0x000000000024A000-memory.dmp

Filesize
40KB

Download
memory/1936-54-0x0000000000D50000-0x0000000000DC8000-memory.dmp

Filesize
480KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads