agenttesla | 4278e2830a06201c8d2bd5352272fbe141c0c245013a2de2d1b6e221d7b0550d

General

Target

OPLSU19HP4286.gz.exe
Size

598KB
MD5

7a2ea0c3cc1f0c59f5d35a09843ce4f2
SHA1

2b224c79f1392587d91b3e9c379b9a23adc4767d
SHA256

a6599b417be167f4a56b09497a4e42a60305c59b564b872246c2c6a6f368c44a
SHA512

89d867eaa6f51bda727acac536a3e748cbaa1e6eb08d92883b252b361ca100f4cb2acd0dbcf8d5d5e4591adf506c32c2a042b4e6eecd67a45cb2c541ce3002a6

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.ahrass.com
Port:
587
Username:
mohamedadjal@ahrass.com
Password:
chukwuma22

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/1420-138-0x0000000000400000-0x0000000000452000-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:

OPLSU19HP4286.gz.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	OPLSU19HP4286.gz.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:

OPLSU19HP4286.gz.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OPLSU19HP4286.gz.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OPLSU19HP4286.gz.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OPLSU19HP4286.gz.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

OPLSU19HP4286.gz.exe

description pid process target process

PID 4256 set thread context of 1420 4256 OPLSU19HP4286.gz.exe OPLSU19HP4286.gz.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

4252 schtasks.exe

description	pid	process	target process
PID 4256 set thread context of 1420	4256	OPLSU19HP4286.gz.exe	OPLSU19HP4286.gz.exe

pid	process
4252	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

OPLSU19HP4286.gz.exeOPLSU19HP4286.gz.exe

pid	process
4256	OPLSU19HP4286.gz.exe
4256	OPLSU19HP4286.gz.exe
4256	OPLSU19HP4286.gz.exe
4256	OPLSU19HP4286.gz.exe
1420	OPLSU19HP4286.gz.exe
1420	OPLSU19HP4286.gz.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

OPLSU19HP4286.gz.exeOPLSU19HP4286.gz.exe

description pid process

Token: SeDebugPrivilege 4256 OPLSU19HP4286.gz.exe
Token: SeDebugPrivilege 1420 OPLSU19HP4286.gz.exe

description	pid	process
Token: SeDebugPrivilege	4256	OPLSU19HP4286.gz.exe
Token: SeDebugPrivilege	1420	OPLSU19HP4286.gz.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

OPLSU19HP4286.gz.exeOPLSU19HP4286.gz.exe

description	pid	process	target process
PID 4256 wrote to memory of 4252	4256	OPLSU19HP4286.gz.exe	schtasks.exe
PID 4256 wrote to memory of 4252	4256	OPLSU19HP4286.gz.exe	schtasks.exe
PID 4256 wrote to memory of 4252	4256	OPLSU19HP4286.gz.exe	schtasks.exe
PID 4256 wrote to memory of 1420	4256	OPLSU19HP4286.gz.exe	OPLSU19HP4286.gz.exe
PID 4256 wrote to memory of 1420	4256	OPLSU19HP4286.gz.exe	OPLSU19HP4286.gz.exe
PID 4256 wrote to memory of 1420	4256	OPLSU19HP4286.gz.exe	OPLSU19HP4286.gz.exe
PID 4256 wrote to memory of 1420	4256	OPLSU19HP4286.gz.exe	OPLSU19HP4286.gz.exe
PID 4256 wrote to memory of 1420	4256	OPLSU19HP4286.gz.exe	OPLSU19HP4286.gz.exe
PID 4256 wrote to memory of 1420	4256	OPLSU19HP4286.gz.exe	OPLSU19HP4286.gz.exe
PID 4256 wrote to memory of 1420	4256	OPLSU19HP4286.gz.exe	OPLSU19HP4286.gz.exe
PID 4256 wrote to memory of 1420	4256	OPLSU19HP4286.gz.exe	OPLSU19HP4286.gz.exe
PID 1420 wrote to memory of 2124	1420	OPLSU19HP4286.gz.exe	netsh.exe
PID 1420 wrote to memory of 2124	1420	OPLSU19HP4286.gz.exe	netsh.exe
PID 1420 wrote to memory of 2124	1420	OPLSU19HP4286.gz.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

OPLSU19HP4286.gz.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	OPLSU19HP4286.gz.exe

outlook_win_path 1 IoCs

Processes:

OPLSU19HP4286.gz.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	OPLSU19HP4286.gz.exe

C:\Users\Admin\AppData\Local\Temp\OPLSU19HP4286.gz.exe
"C:\Users\Admin\AppData\Local\Temp\OPLSU19HP4286.gz.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4256

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tOJobcOCKeOEZY" /XML "C:\Users\Admin\AppData\Local\Temp\tmp73B9.tmp"
2⤵
- Creates scheduled task(s)
PID:4252

C:\Users\Admin\AppData\Local\Temp\OPLSU19HP4286.gz.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1420

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:2124

Network

MITRE ATT&CK Matrix ATT&CK 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

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\OPLSU19HP4286.gz.exe.log
Filesize
1KB

MD5
400f1cc1a0a0ce1cdabda365ab3368ce

SHA1
1ecf683f14271d84f3b6063493dce00ff5f42075

SHA256
c8fa64f4b69df13ed6408fd4a204f318a36c2f38c85d4a4d42adfc9173f73765

SHA512
14c8cfd58d097e5e89c8cabe1e665173f1ccf604a9ef70cdcb84116e265f90819c19c891be408e0ad7e29086a5c2ea2883b7a7d1184878dbbac63e2cabcd1c45

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp73B9.tmp
Filesize
1KB

MD5
ee87c93116a4c280770dfc736dc13bd9

SHA1
fb1c10f4128d37c8220b0c0b2c37eb55514892fd

SHA256
6e4070abc58d77a2904c251a0d65df256f0ed34d89dcd460eb62dccf2da91add

SHA512
14a84c00e1582cbf05742b468e15d1e863a10f0bcb75cb689ef0dbdc0e103ce36de98490b4a18dc0e20db55853376d21a8881ea1457ae440fdbc9f1bd256bee1

Download Submit
memory/1420-137-0x0000000000000000-mapping.dmp

Download
memory/1420-138-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1420-140-0x0000000005B70000-0x0000000005BD6000-memory.dmp

Filesize
408KB

Download
memory/1420-141-0x0000000006630000-0x0000000006680000-memory.dmp

Filesize
320KB

Download
memory/2124-142-0x0000000000000000-mapping.dmp

Download
memory/4252-135-0x0000000000000000-mapping.dmp

Download
memory/4256-132-0x0000000005540000-0x00000000055D2000-memory.dmp

Filesize
584KB

Download
memory/4256-133-0x0000000005520000-0x000000000552A000-memory.dmp

Filesize
40KB

Download
memory/4256-134-0x0000000009300000-0x000000000939C000-memory.dmp

Filesize
624KB

Download
memory/4256-130-0x00000000007A0000-0x000000000083C000-memory.dmp

Filesize
624KB

Download
memory/4256-131-0x0000000005950000-0x0000000005EF4000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads