agenttesla | 7db5974f16db1242a0212877eaf417100c33251811963573ac3eff2b4864fd6f

General

Target

purchase order.exe
Size

975KB
MD5

63c86be77aff4ce6c9b8b05457fc99b9
SHA1

5d3442c88ec022d2029d91633375e7e19bb60084
SHA256

f458911cad980b38b8c73ec5b8755b9b5d0d1ff6906ed78da4d5f6ec79b5acf8
SHA512

9c0892973d6b484a231f22d4c085fa797c815ef8e0c9c061249b44436886eba6e6cccc185977965451a778edc1ead34051595a68d77873bdf3e680ceba525fdb
SSDEEP

24576:KZLUMT+pWX9juJoJeZLUMT+pWX9juJoJmz:KWw+00Ww+0cz

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.yitaipackaging.com
Port:
587
Username:
[email protected]
Password:
22799213

Signatures

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

AgentTesla payload 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2716-21-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/2716-25-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/2716-23-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/2716-17-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/2716-16-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

purchase order.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts purchase order.exe
Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
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
T1552.001
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
T1552.001
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
T1552.001

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	purchase order.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

purchase order.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	purchase order.exe
Key opened	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	purchase order.exe
Key opened	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	purchase order.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

purchase order.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\gKWBf = "C:\\Users\\Admin\\AppData\\Roaming\\gKWBf\\gKWBf.exe"	purchase order.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

purchase order.exe

description pid process target process

PID 1180 set thread context of 2716 1180 purchase order.exe purchase order.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

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/Job
T1053

Processes:

schtasks.exe

pid process

2840 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

344 REG.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

purchase order.exepurchase order.exe

pid process

1180 purchase order.exe
1180 purchase order.exe
1180 purchase order.exe
2716 purchase order.exe
2716 purchase order.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

purchase order.exepurchase order.exe

description pid process

Token: SeDebugPrivilege 1180 purchase order.exe
Token: SeDebugPrivilege 2716 purchase order.exe

description	pid	process	target process
PID 1180 set thread context of 2716	1180	purchase order.exe	purchase order.exe

pid	process
2840	schtasks.exe

pid	process
344	REG.exe

pid	process
1180	purchase order.exe
1180	purchase order.exe
1180	purchase order.exe
2716	purchase order.exe
2716	purchase order.exe

description	pid	process
Token: SeDebugPrivilege	1180	purchase order.exe
Token: SeDebugPrivilege	2716	purchase order.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

purchase order.exepurchase order.exe

description	pid	process	target process
PID 1180 wrote to memory of 2840	1180	purchase order.exe	schtasks.exe
PID 1180 wrote to memory of 2840	1180	purchase order.exe	schtasks.exe
PID 1180 wrote to memory of 2840	1180	purchase order.exe	schtasks.exe
PID 1180 wrote to memory of 2840	1180	purchase order.exe	schtasks.exe
PID 1180 wrote to memory of 2716	1180	purchase order.exe	purchase order.exe
PID 1180 wrote to memory of 2716	1180	purchase order.exe	purchase order.exe
PID 1180 wrote to memory of 2716	1180	purchase order.exe	purchase order.exe
PID 1180 wrote to memory of 2716	1180	purchase order.exe	purchase order.exe
PID 1180 wrote to memory of 2716	1180	purchase order.exe	purchase order.exe
PID 1180 wrote to memory of 2716	1180	purchase order.exe	purchase order.exe
PID 1180 wrote to memory of 2716	1180	purchase order.exe	purchase order.exe
PID 1180 wrote to memory of 2716	1180	purchase order.exe	purchase order.exe
PID 1180 wrote to memory of 2716	1180	purchase order.exe	purchase order.exe
PID 2716 wrote to memory of 344	2716	purchase order.exe	REG.exe
PID 2716 wrote to memory of 344	2716	purchase order.exe	REG.exe
PID 2716 wrote to memory of 344	2716	purchase order.exe	REG.exe
PID 2716 wrote to memory of 344	2716	purchase order.exe	REG.exe

outlook_office_path 1 IoCs

Processes:

purchase order.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	purchase order.exe

outlook_win_path 1 IoCs

Processes:

purchase order.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	purchase order.exe

C:\Users\Admin\AppData\Local\Temp\purchase order.exe
"C:\Users\Admin\AppData\Local\Temp\purchase order.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1180

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\awxzgc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8B4F.tmp"
2⤵
- Creates scheduled task(s)
PID:2840

C:\Users\Admin\AppData\Local\Temp\purchase order.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:2716

C:\Windows\SysWOW64\REG.exe
REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System / v DisableTaskMgr / t REG_DWORD / d 1 / f
3⤵
- Modifies registry key
PID:344

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

2

T1112

Credential Access

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

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\tmp8B4F.tmp

Filesize
1KB

MD5
1a97099c1c2ce1b49a9756d83c5f575d

SHA1
e28492c831796264046cc946fc10b00ef995a29c

SHA256
7f3d5aad660785ccf273359ca539b9eae18e7bc4a2c51207c0c8499a0baa2e36

SHA512
8c17010984177f67e6dde07cb07222e93e097ee1533f74bc96532cdaedd2f65a6629e9b0c39fcf770c9a7b8bb99ab7a417285ac98442a01a7ca43491fd22b024

Download Submit
memory/1180-4-0x0000000074940000-0x000000007502E000-memory.dmp

Filesize
6.9MB

Download
memory/1180-5-0x0000000004F10000-0x0000000004F50000-memory.dmp

Filesize
256KB

Download
memory/1180-26-0x0000000074940000-0x000000007502E000-memory.dmp

Filesize
6.9MB

Download
memory/1180-0-0x0000000001090000-0x000000000118A000-memory.dmp

Filesize
1000KB

Download
memory/1180-1-0x0000000074940000-0x000000007502E000-memory.dmp

Filesize
6.9MB

Download
memory/1180-6-0x0000000000EE0000-0x0000000000F42000-memory.dmp

Filesize
392KB

Download
memory/1180-7-0x0000000001020000-0x0000000001080000-memory.dmp

Filesize
384KB

Download
memory/1180-2-0x0000000004F10000-0x0000000004F50000-memory.dmp

Filesize
256KB

Download
memory/1180-3-0x0000000000340000-0x000000000034A000-memory.dmp

Filesize
40KB

Download
memory/2716-23-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2716-25-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2716-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2716-17-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2716-16-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2716-13-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2716-12-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2716-21-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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