agenttesla | 7a84ade5bcef198d32f876ff301affb17f25b9718d5471639d3285226ae1a23e

General

Target

new order.exe
Size

444KB
MD5

9d9881934e837298eef34f31bd4fdac6
SHA1

1d8e4add2babcd745934a6924efc52a73edf74ee
SHA256

1e41a4bc1146c02cf7e2e5f2a040ad3835f4852b675bfef98eeaed0c16d8bee3
SHA512

d9e512b4b0765bc050218bed8efcc1c2d07313b3204d1a255cd96b5bf237666ad4f44d7cc41e3cb38b09f35e31cb420391567c27272f4c905d6a25b0785a5c78

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 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/988-63-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/988-64-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/988-65-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/988-66-0x00000000004478DE-mapping.dmp	family_agenttesla
behavioral1/memory/988-68-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/988-70-0x0000000000400000-0x000000000044C000-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:

new order.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	new order.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	new order.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	new order.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

new order.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run\gKWBf = "C:\\Users\\Admin\\AppData\\Roaming\\gKWBf\\gKWBf.exe"	new order.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

new order.exe

description pid process target process

PID 848 set thread context of 988 848 new order.exe new order.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

1732 schtasks.exe
Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

new order.exenew order.exe

pid process

848 new order.exe
848 new order.exe
848 new order.exe
848 new order.exe
848 new order.exe
988 new order.exe
988 new order.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

new order.exenew order.exe

description pid process

Token: SeDebugPrivilege 848 new order.exe
Token: SeDebugPrivilege 988 new order.exe

description	pid	process	target process
PID 848 set thread context of 988	848	new order.exe	new order.exe

pid	process
1732	schtasks.exe

pid	process
848	new order.exe
848	new order.exe
848	new order.exe
848	new order.exe
848	new order.exe
988	new order.exe
988	new order.exe

description	pid	process
Token: SeDebugPrivilege	848	new order.exe
Token: SeDebugPrivilege	988	new order.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

new order.exe

description	pid	process	target process
PID 848 wrote to memory of 1732	848	new order.exe	schtasks.exe
PID 848 wrote to memory of 1732	848	new order.exe	schtasks.exe
PID 848 wrote to memory of 1732	848	new order.exe	schtasks.exe
PID 848 wrote to memory of 1732	848	new order.exe	schtasks.exe
PID 848 wrote to memory of 988	848	new order.exe	new order.exe
PID 848 wrote to memory of 988	848	new order.exe	new order.exe
PID 848 wrote to memory of 988	848	new order.exe	new order.exe
PID 848 wrote to memory of 988	848	new order.exe	new order.exe
PID 848 wrote to memory of 988	848	new order.exe	new order.exe
PID 848 wrote to memory of 988	848	new order.exe	new order.exe
PID 848 wrote to memory of 988	848	new order.exe	new order.exe
PID 848 wrote to memory of 988	848	new order.exe	new order.exe
PID 848 wrote to memory of 988	848	new order.exe	new order.exe

outlook_office_path 1 IoCs

Processes:

new order.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	new order.exe

outlook_win_path 1 IoCs

Processes:

new order.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	new order.exe

C:\Users\Admin\AppData\Local\Temp\new order.exe
"C:\Users\Admin\AppData\Local\Temp\new order.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:848

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xbxCRaah" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE956.tmp"
2⤵
- Creates scheduled task(s)
PID:1732

C:\Users\Admin\AppData\Local\Temp\new order.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:988

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

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\Temp\tmpE956.tmp
Filesize
1KB

MD5
bf5b08813c3216625328e0a951a9b51a

SHA1
48d8b85bfaf1bf8c26eba4fae31630f2bc4e9adf

SHA256
2f113421759260bc478da0df996f741948ab860ff89cf1a8b22e308a6cdc1a69

SHA512
27f1fad2231ff41e89783f855413f566d2a34bbfd6750991d2685a71d5045d5b4878b91b30ebc7904f28ef3269cd251ebae9e50c531c47aff2d553090a484a47

Download Submit
memory/848-55-0x0000000000390000-0x000000000039A000-memory.dmp

Filesize
40KB

Download
memory/848-56-0x00000000021F0000-0x0000000002256000-memory.dmp

Filesize
408KB

Download
memory/848-57-0x00000000042E0000-0x000000000432C000-memory.dmp

Filesize
304KB

Download
memory/848-54-0x0000000000C30000-0x0000000000CA6000-memory.dmp

Filesize
472KB

Download
memory/988-60-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/988-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/988-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/988-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/988-65-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/988-66-0x00000000004478DE-mapping.dmp

Download
memory/988-68-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/988-70-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/988-71-0x0000000075941000-0x0000000075943000-memory.dmp

Filesize
8KB

Download
memory/1732-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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