agenttesla | 2a6e3032b6079436784946962682489bb0f60b37ed9cf5f9104cca3dec8130e0

General

Target

74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe
Size

952KB
MD5

9113e90180121aef04bce6f955abcd3f
SHA1

083ccca74257bafc6547a6e4bcb9b3c59703c076
SHA256

74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4
SHA512

ff67d25b1f9c8c917b18a982f195c98e14ad2a5073fc4b99b90e363bf61c450162ed19a61620a3ab1473670f4d2beb96d913cc1d78620c09ba51f002b81dc256
SSDEEP

12288:1+Txbat6yWIWEYeozu38EF3FfC4f3R9fGUhG3xCVITuREvqkxQWXQJixJ8nitW9a:qC6yaEVK5w9uwG

Score

10^/10

agenttesla collection credential_access defense_evasion discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.dm-teh.com
Port:
587
Username:
[email protected]
Password:
Vm@(O;CO.vEQ
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 1 IoCs

resource	yara_rule
behavioral2/memory/780-18-0x0000000000700000-0x000000000073C000-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

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
Key opened	\Registry\Machine\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Custom\InstallUtil.exe	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe
File created	C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe

Executes dropped EXE 1 IoCs

pid	Process
780	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 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-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3836 set thread context of 780	3836	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe	94

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	InstallUtil.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3836	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe
780	InstallUtil.exe
780	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3836	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe
Token: SeDebugPrivilege	780	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3836 wrote to memory of 780	3836	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe	94
PID 3836 wrote to memory of 780	3836	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe	94
PID 3836 wrote to memory of 780	3836	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe	94
PID 3836 wrote to memory of 780	3836	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe	94
PID 3836 wrote to memory of 780	3836	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe	94
PID 3836 wrote to memory of 780	3836	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe	94
PID 3836 wrote to memory of 780	3836	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe	94
PID 3836 wrote to memory of 780	3836	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe	94

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe
"C:\Users\Admin\AppData\Local\Temp\74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.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:3836
- 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:780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

System Binary Proxy Execution

1

T1218

InstallUtil

1

T1218.004

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

Loading Replay Monitor...

Downloads

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

Filesize
41KB

MD5
5d4073b2eb6d217c19f2b22f21bf8d57

SHA1
f0209900fbf08d004b886a0b3ba33ea2b0bf9da8

SHA256
ac1a3f21fcc88f9cee7bf51581eafba24cc76c924f0821deb2afdf1080ddf3d3

SHA512
9ac94880684933ba3407cdc135abc3047543436567af14cd9269c4adc5a6535db7b867d6de0d6238a21b94e69f9890dbb5739155871a624520623a7e56872159

Download Submit
memory/780-27-0x00000000746E0000-0x0000000074E90000-memory.dmp

Filesize
7.7MB

Download
memory/780-26-0x00000000746E0000-0x0000000074E90000-memory.dmp

Filesize
7.7MB

Download
memory/780-25-0x00000000060C0000-0x0000000006110000-memory.dmp

Filesize
320KB

Download
memory/780-24-0x00000000746E0000-0x0000000074E90000-memory.dmp

Filesize
7.7MB

Download
memory/780-23-0x00000000746E0000-0x0000000074E90000-memory.dmp

Filesize
7.7MB

Download
memory/780-22-0x0000000005B00000-0x0000000005B66000-memory.dmp

Filesize
408KB

Download
memory/780-21-0x0000000005020000-0x0000000005038000-memory.dmp

Filesize
96KB

Download
memory/780-20-0x00000000746E0000-0x0000000074E90000-memory.dmp

Filesize
7.7MB

Download
memory/780-18-0x0000000000700000-0x000000000073C000-memory.dmp

Filesize
240KB

Download
memory/780-17-0x00000000746E0000-0x0000000074E90000-memory.dmp

Filesize
7.7MB

Download
memory/3836-5-0x00000000746E0000-0x0000000074E90000-memory.dmp

Filesize
7.7MB

Download
memory/3836-11-0x00000000062B0000-0x00000000062C2000-memory.dmp

Filesize
72KB

Download
memory/3836-19-0x00000000746E0000-0x0000000074E90000-memory.dmp

Filesize
7.7MB

Download
memory/3836-9-0x00000000746E0000-0x0000000074E90000-memory.dmp

Filesize
7.7MB

Download
memory/3836-8-0x00000000746EE000-0x00000000746EF000-memory.dmp

Filesize
4KB

Download
memory/3836-7-0x00000000077D0000-0x00000000077DA000-memory.dmp

Filesize
40KB

Download
memory/3836-6-0x0000000002600000-0x000000000262C000-memory.dmp

Filesize
176KB

Download
memory/3836-0-0x00000000746EE000-0x00000000746EF000-memory.dmp

Filesize
4KB

Download
memory/3836-4-0x0000000004E40000-0x0000000004EDC000-memory.dmp

Filesize
624KB

Download
memory/3836-3-0x0000000004D00000-0x0000000004D92000-memory.dmp

Filesize
584KB

Download
memory/3836-2-0x00000000052B0000-0x0000000005854000-memory.dmp

Filesize
5.6MB

Download
memory/3836-1-0x0000000000210000-0x0000000000304000-memory.dmp

Filesize
976KB

Download

Analysis

Sharing