agenttesla | 9404c7a99bcdde02f50e378d1dffad170426af7c1c5c545b2f6fd57de48ffad5

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-11-2024 20:32

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General

Target

malware/EinTT.exe
Size

583KB
MD5

a4741e30b7b12d7b7ff728527bf7023e
SHA1

d8429912433ca80b1fde886c1e91af51abab5efe
SHA256

693b96514d1d57ee01269e74390bef130a9980cd91f8487cac6f3a89c4f18b25
SHA512

7532983d8d1ac79bfc1384320461ee807dbfd5399c82a01c2f86746adb50e614ab5ca85a466a512f9a9af0bab7cffabd98a2d37e5023815c2e3bfa962d360342
SSDEEP

6144:dO99nEZS3bUmSoiDnQtUcs99EwG4EJJjtnqN1+Wwv/UxTRJQF8gswo7r:wDEZfmwcAywwFxv/ifgf3E

Score

10^/10

agenttesla collection credential_access defense_evasion discovery keylogger spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.mushko-ps.com
Port:
587
Username:
[email protected]
Password:
Uma335@Mps

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.mushko-ps.com
Port:
587
Username:
[email protected]
Password:
Uma335@Mps
Email To:
[email protected]

Signatures

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

System Binary Proxy Execution: InstallUtil 1 TTPs 2 IoCs

Abuse InstallUtil to proxy execution of malicious code.

defense_evasion

InstallUtil

T1218.004

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe	EinTT.exe
Key opened	\Registry\Machine\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Custom\InstallUtil.exe	EinTT.exe

Executes dropped EXE 1 IoCs

pid	Process
4024	InstallUtil.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 3 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

Credentials from Web Browsers
T1555.003
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-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2204 set thread context of 4024	2204	EinTT.exe	90

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	EinTT.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2204	EinTT.exe
2204	EinTT.exe
4024	InstallUtil.exe
4024	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2204	EinTT.exe
Token: SeDebugPrivilege	4024	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 4024	2204	EinTT.exe	90
PID 2204 wrote to memory of 4024	2204	EinTT.exe	90
PID 2204 wrote to memory of 4024	2204	EinTT.exe	90
PID 2204 wrote to memory of 4024	2204	EinTT.exe	90
PID 2204 wrote to memory of 4024	2204	EinTT.exe	90
PID 2204 wrote to memory of 4024	2204	EinTT.exe	90
PID 2204 wrote to memory of 4024	2204	EinTT.exe	90
PID 2204 wrote to memory of 4024	2204	EinTT.exe	90

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\malware\EinTT.exe
"C:\Users\Admin\AppData\Local\Temp\malware\EinTT.exe"
1⤵
- System Binary Proxy Execution: InstallUtil
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2204
- C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
  "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
  2⤵
  - Executes dropped EXE
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4024

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

System Binary Proxy Execution

T1218

InstallUtil

T1218.004

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe

Filesize
41KB

MD5
5d4073b2eb6d217c19f2b22f21bf8d57

SHA1
f0209900fbf08d004b886a0b3ba33ea2b0bf9da8

SHA256
ac1a3f21fcc88f9cee7bf51581eafba24cc76c924f0821deb2afdf1080ddf3d3

SHA512
9ac94880684933ba3407cdc135abc3047543436567af14cd9269c4adc5a6535db7b867d6de0d6238a21b94e69f9890dbb5739155871a624520623a7e56872159

Download Submit
memory/2204-13-0x0000000005870000-0x000000000588A000-memory.dmp

Filesize
104KB

Download
memory/2204-3-0x0000000004C90000-0x0000000004D2C000-memory.dmp

Filesize
624KB

Download
memory/2204-15-0x0000000007530000-0x0000000007884000-memory.dmp

Filesize
3.3MB

Download
memory/2204-16-0x0000000006C20000-0x0000000006C42000-memory.dmp

Filesize
136KB

Download
memory/2204-5-0x00000000059B0000-0x00000000059E2000-memory.dmp

Filesize
200KB

Download
memory/2204-6-0x0000000007ED0000-0x0000000007EE6000-memory.dmp

Filesize
88KB

Download
memory/2204-7-0x0000000009EF0000-0x0000000009F82000-memory.dmp

Filesize
584KB

Download
memory/2204-8-0x0000000005B20000-0x0000000005B2A000-memory.dmp

Filesize
40KB

Download
memory/2204-9-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/2204-11-0x000000007445E000-0x000000007445F000-memory.dmp

Filesize
4KB

Download
memory/2204-12-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/2204-0-0x000000007445E000-0x000000007445F000-memory.dmp

Filesize
4KB

Download
memory/2204-14-0x00000000058F0000-0x00000000058F6000-memory.dmp

Filesize
24KB

Download
memory/2204-2-0x0000000005240000-0x00000000057E4000-memory.dmp

Filesize
5.6MB

Download
memory/2204-4-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/2204-22-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/2204-1-0x00000000001F0000-0x0000000000288000-memory.dmp

Filesize
608KB

Download
memory/4024-18-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/4024-23-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/4024-25-0x0000000005910000-0x0000000005928000-memory.dmp

Filesize
96KB

Download
memory/4024-24-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/4024-26-0x0000000005F80000-0x0000000005FE6000-memory.dmp

Filesize
408KB

Download
memory/4024-27-0x00000000066C0000-0x0000000006710000-memory.dmp

Filesize
320KB

Download
memory/4024-28-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/4024-29-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/4024-30-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download