agenttesla | fe07a568a1b28b5896f53ed9ef1be70fbda09f99f176c34e7e3f81e6ebfed81c

General

Target

Universal170920.exe
Size

492KB
MD5

1029af374ae0accd05afd9874ac61f3f
SHA1

3a37c6fe8e5120e828b6b21ccd8c440f332e86dc
SHA256

68624d31f561c1e2b735c18ecef36cc6c648803a19b34d1d75bf5815f3037675
SHA512

4b40af392516f84528fb7617f90457969889cfa2d9e2583b3e92ba9ea914e891fa2188bb1ec25ae70dc43eefe85020754ec4c6182de06209f1f9d11de159486b

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.transfastc.com
Port:
587
Username:
[email protected]
Password:
Godalone147

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/1848-64-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1848-65-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1848-66-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1848-67-0x0000000000446AEE-mapping.dmp	family_agenttesla
behavioral1/memory/1848-69-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1848-71-0x0000000000400000-0x000000000044C000-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:

Universal170920.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	Universal170920.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Universal170920.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Universal170920.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Universal170920.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run\YYtJku = "C:\\Users\\Admin\\AppData\\Roaming\\YYtJku\\YYtJku.exe"	Universal170920.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Universal170920.exe

description pid process target process

PID 1036 set thread context of 1848 1036 Universal170920.exe Universal170920.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 4 IoCs

Processes:

Universal170920.exeUniversal170920.exe

pid process

1036 Universal170920.exe
1036 Universal170920.exe
1848 Universal170920.exe
1848 Universal170920.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

Universal170920.exe

pid process

1848 Universal170920.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Universal170920.exeUniversal170920.exe

description pid process

Token: SeDebugPrivilege 1036 Universal170920.exe
Token: SeDebugPrivilege 1848 Universal170920.exe

description	pid	process	target process
PID 1036 set thread context of 1848	1036	Universal170920.exe	Universal170920.exe

pid	process
1732	schtasks.exe

pid	process
1036	Universal170920.exe
1036	Universal170920.exe
1848	Universal170920.exe
1848	Universal170920.exe

pid	process
1848	Universal170920.exe

description	pid	process
Token: SeDebugPrivilege	1036	Universal170920.exe
Token: SeDebugPrivilege	1848	Universal170920.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

Universal170920.exe

description	pid	process	target process
PID 1036 wrote to memory of 1732	1036	Universal170920.exe	schtasks.exe
PID 1036 wrote to memory of 1732	1036	Universal170920.exe	schtasks.exe
PID 1036 wrote to memory of 1732	1036	Universal170920.exe	schtasks.exe
PID 1036 wrote to memory of 1732	1036	Universal170920.exe	schtasks.exe
PID 1036 wrote to memory of 1848	1036	Universal170920.exe	Universal170920.exe
PID 1036 wrote to memory of 1848	1036	Universal170920.exe	Universal170920.exe
PID 1036 wrote to memory of 1848	1036	Universal170920.exe	Universal170920.exe
PID 1036 wrote to memory of 1848	1036	Universal170920.exe	Universal170920.exe
PID 1036 wrote to memory of 1848	1036	Universal170920.exe	Universal170920.exe
PID 1036 wrote to memory of 1848	1036	Universal170920.exe	Universal170920.exe
PID 1036 wrote to memory of 1848	1036	Universal170920.exe	Universal170920.exe
PID 1036 wrote to memory of 1848	1036	Universal170920.exe	Universal170920.exe
PID 1036 wrote to memory of 1848	1036	Universal170920.exe	Universal170920.exe

outlook_office_path 1 IoCs

Processes:

Universal170920.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	Universal170920.exe

outlook_win_path 1 IoCs

Processes:

Universal170920.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	Universal170920.exe

C:\Users\Admin\AppData\Local\Temp\Universal170920.exe
"C:\Users\Admin\AppData\Local\Temp\Universal170920.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1036

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tgPdWfy" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB1F2.tmp"
2⤵
- Creates scheduled task(s)
PID:1732

C:\Users\Admin\AppData\Local\Temp\Universal170920.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1848

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

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

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB1F2.tmp

Filesize
1KB

MD5
35c214d624207ae074ad2e61b135307b

SHA1
cc05ff2e76fe5a478ceb274e9a7d5218994e69e0

SHA256
07336986076834019381dcf358a88ad151f78776d4fc572148e11081ede6f397

SHA512
f32c71c31ec584218ee187ea05353a95e5687a9a67538433b205ff2209514346ee8b935a99cf2ace328e1dfda9d21bb55172d23943a699e246c56e90cbd90afe

Download Submit
memory/1036-57-0x0000000000AB0000-0x0000000000B18000-memory.dmp

Filesize
416KB

Download
memory/1036-56-0x00000000007A0000-0x00000000007AA000-memory.dmp

Filesize
40KB

Download
memory/1036-54-0x0000000001300000-0x0000000001382000-memory.dmp

Filesize
520KB

Download
memory/1036-58-0x00000000001F0000-0x000000000023A000-memory.dmp

Filesize
296KB

Download
memory/1036-55-0x0000000075941000-0x0000000075943000-memory.dmp

Filesize
8KB

Download
memory/1732-59-0x0000000000000000-mapping.dmp

Download
memory/1848-62-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1848-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1848-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1848-65-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1848-66-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1848-67-0x0000000000446AEE-mapping.dmp

Download
memory/1848-69-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1848-71-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads