agenttesla | 975ec4a6250960b45606ce9c155560c3283a3df4ffab69ec81f8cabdbc714b0e

General

Target

62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe
Size

574KB
MD5

00fe3f2a77b6bb57385d403411d45e39
SHA1

ad101cb7eab390ed45ec84294da65059aa2fde70
SHA256

62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918
SHA512

b7fedd8e92b2569130df1faa8cfd5736d457c98991d0a14ce059e05b37bea79e36cd970d06510b4397c08333737d166c8e7121c037713e35fd5fabe53290aa13
SSDEEP

12288:YmEUG3Ap0FzZL2gSOfVxTaSaSehhjtrS2KlP:Yrp3E0FzZDSm3W+IU

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
milax.tk
Port:
587
Username:
[email protected]
Password:
7213575aceACE@#$
Email To:
[email protected]

Signatures

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

AgentTesla payload 5 IoCs

resource	yara_rule
behavioral4/memory/2696-11-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral4/memory/2696-19-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral4/memory/2696-9-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral4/memory/2696-17-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral4/memory/2696-15-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.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
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2336 set thread context of 2696	2336	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe	31

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2696	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe
2696	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2696	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2696	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2336 wrote to memory of 2696	2336	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe	31
PID 2336 wrote to memory of 2696	2336	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe	31
PID 2336 wrote to memory of 2696	2336	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe	31
PID 2336 wrote to memory of 2696	2336	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe	31
PID 2336 wrote to memory of 2696	2336	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe	31
PID 2336 wrote to memory of 2696	2336	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe	31
PID 2336 wrote to memory of 2696	2336	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe	31
PID 2336 wrote to memory of 2696	2336	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe	31
PID 2336 wrote to memory of 2696	2336	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe

C:\Users\Admin\AppData\Local\Temp\62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe
"C:\Users\Admin\AppData\Local\Temp\62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2336
- C:\Users\Admin\AppData\Local\Temp\62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe
  "C:\Users\Admin\AppData\Local\Temp\62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:2696

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

5

T1552

Credentials In Files

4

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2336-0-0x00000000743DE000-0x00000000743DF000-memory.dmp

Filesize
4KB

Download
memory/2336-1-0x0000000000A90000-0x0000000000B26000-memory.dmp

Filesize
600KB

Download
memory/2336-2-0x00000000743D0000-0x0000000074ABE000-memory.dmp

Filesize
6.9MB

Download
memory/2336-3-0x0000000000680000-0x000000000068A000-memory.dmp

Filesize
40KB

Download
memory/2336-4-0x00000000743DE000-0x00000000743DF000-memory.dmp

Filesize
4KB

Download
memory/2336-5-0x00000000743D0000-0x0000000074ABE000-memory.dmp

Filesize
6.9MB

Download
memory/2336-6-0x00000000061B0000-0x0000000006220000-memory.dmp

Filesize
448KB

Download
memory/2336-21-0x00000000743D0000-0x0000000074ABE000-memory.dmp

Filesize
6.9MB

Download
memory/2696-7-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2696-20-0x00000000743D0000-0x0000000074ABE000-memory.dmp

Filesize
6.9MB

Download
memory/2696-8-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2696-9-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2696-17-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2696-15-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2696-11-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2696-19-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2696-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2696-22-0x00000000743D0000-0x0000000074ABE000-memory.dmp

Filesize
6.9MB

Download
memory/2696-23-0x00000000743D0000-0x0000000074ABE000-memory.dmp

Filesize
6.9MB

Download
memory/2696-24-0x00000000743D0000-0x0000000074ABE000-memory.dmp

Filesize
6.9MB

Download
memory/2696-26-0x00000000743D0000-0x0000000074ABE000-memory.dmp

Filesize
6.9MB

Download
memory/2696-27-0x00000000743D0000-0x0000000074ABE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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