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 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3552-137-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

NHWJOC9C.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	NHWJOC9C.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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

NHWJOC9C.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	NHWJOC9C.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	NHWJOC9C.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	NHWJOC9C.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

NHWJOC9C.exe

description pid process target process

PID 3064 set thread context of 3552 3064 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

4400 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

NHWJOC9C.exe

pid process

3552 NHWJOC9C.exe
3552 NHWJOC9C.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

NHWJOC9C.exe

description pid process

Token: SeDebugPrivilege 3552 NHWJOC9C.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

NHWJOC9C.exe

pid process

3552 NHWJOC9C.exe

description	pid	process	target process
PID 3064 set thread context of 3552	3064	NHWJOC9C.exe	NHWJOC9C.exe

pid	process
4400	schtasks.exe

pid	process
3552	NHWJOC9C.exe
3552	NHWJOC9C.exe

description	pid	process
Token: SeDebugPrivilege	3552	NHWJOC9C.exe

pid	process
3552	NHWJOC9C.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

NHWJOC9C.exe

description	pid	process	target process
PID 3064 wrote to memory of 4400	3064	NHWJOC9C.exe	schtasks.exe
PID 3064 wrote to memory of 4400	3064	NHWJOC9C.exe	schtasks.exe
PID 3064 wrote to memory of 4400	3064	NHWJOC9C.exe	schtasks.exe
PID 3064 wrote to memory of 3552	3064	NHWJOC9C.exe	NHWJOC9C.exe
PID 3064 wrote to memory of 3552	3064	NHWJOC9C.exe	NHWJOC9C.exe
PID 3064 wrote to memory of 3552	3064	NHWJOC9C.exe	NHWJOC9C.exe
PID 3064 wrote to memory of 3552	3064	NHWJOC9C.exe	NHWJOC9C.exe
PID 3064 wrote to memory of 3552	3064	NHWJOC9C.exe	NHWJOC9C.exe
PID 3064 wrote to memory of 3552	3064	NHWJOC9C.exe	NHWJOC9C.exe
PID 3064 wrote to memory of 3552	3064	NHWJOC9C.exe	NHWJOC9C.exe
PID 3064 wrote to memory of 3552	3064	NHWJOC9C.exe	NHWJOC9C.exe

outlook_office_path 1 IoCs

Processes:

NHWJOC9C.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\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-1-5-21-3751123196-3323558407-1869646069-1000\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⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3064

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qHHcmeNIB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6968.tmp"
2⤵
- Creates scheduled task(s)
PID:4400

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:3552

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

Query Registry

1

T1012

System Information Discovery

2

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\Microsoft\CLR_v4.0_32\UsageLogs\NHWJOC9C.exe.log

Filesize
507B

MD5
76ffb2f33cb32ade8fc862a67599e9d8

SHA1
920cc4ab75b36d2f9f6e979b74db568973c49130

SHA256
f1a3724670e3379318ec9c73f6f39058cab0ab013ba3cd90c047c3d701362310

SHA512
f33502c2e1bb30c05359bfc6819ca934642a1e01874e3060349127d792694d56ad22fccd6c9477b8ee50d66db35785779324273f509576b48b7f85577e001b4e

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp6968.tmp

Filesize
1KB

MD5
151b08e97e89f02ffb241a9c34eddfa4

SHA1
52bbd8b2263cc452eabbd5f97fff9d15844850d9

SHA256
d04c8c661a67869b1bf62f82d21acdb9fa286af94b5c467458a443fa889ebced

SHA512
51c48254b4cd60e6300528930dd1faf30c6aa19e9733b4030034e7264de7f63a9d4fe9d3cdcb1630ecebb1863a8b75ae9c803f4c186ffbde9f31083ba67695d1

Download Submit
memory/3064-130-0x0000000000810000-0x0000000000888000-memory.dmp

Filesize
480KB

Download
memory/3064-131-0x00000000058F0000-0x0000000005E94000-memory.dmp

Filesize
5.6MB

Download
memory/3064-132-0x0000000005240000-0x00000000052D2000-memory.dmp

Filesize
584KB

Download
memory/3064-133-0x00000000053E0000-0x000000000547C000-memory.dmp

Filesize
624KB

Download
memory/3552-136-0x0000000000000000-mapping.dmp

Download
memory/3552-137-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3552-139-0x0000000006390000-0x00000000063F6000-memory.dmp

Filesize
408KB

Download
memory/3552-140-0x0000000006A40000-0x0000000006A90000-memory.dmp

Filesize
320KB

Download
memory/3552-141-0x00000000070E0000-0x00000000070EA000-memory.dmp

Filesize
40KB

Download
memory/4400-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads