agenttesla | 2a6e3032b6079436784946962682489bb0f60b37ed9cf5f9104cca3dec8130e0

Analysis

max time kernel
133s
max time network
121s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
02/09/2024, 02:06

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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 5 IoCs

resource	yara_rule
behavioral1/memory/3044-16-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/3044-17-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/3044-20-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/3044-25-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/3044-23-0x0000000000400000-0x000000000043C000-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

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	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe
Key opened	\Registry\Machine\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Custom\InstallUtil.exe	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe

Executes dropped EXE 1 IoCs

pid	Process
3044	InstallUtil.exe

Loads dropped DLL 1 IoCs

pid	Process
2360	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.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-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2360 set thread context of 3044	2360	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.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	InstallUtil.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2360	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe
3044	InstallUtil.exe
3044	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2360	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe
Token: SeDebugPrivilege	3044	InstallUtil.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2360 wrote to memory of 3044	2360	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe	31
PID 2360 wrote to memory of 3044	2360	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe	31
PID 2360 wrote to memory of 3044	2360	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe	31
PID 2360 wrote to memory of 3044	2360	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe	31
PID 2360 wrote to memory of 3044	2360	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe	31
PID 2360 wrote to memory of 3044	2360	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe	31
PID 2360 wrote to memory of 3044	2360	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe	31
PID 2360 wrote to memory of 3044	2360	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe	31
PID 2360 wrote to memory of 3044	2360	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe	31
PID 2360 wrote to memory of 3044	2360	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe	31
PID 2360 wrote to memory of 3044	2360	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe	31
PID 2360 wrote to memory of 3044	2360	74cf0cd3c6d97651a240bdcadef58f88a9f56e06ceaf9b247777a023a81583b4.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\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
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2360
- 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:3044

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

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Downloads

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

Filesize
40KB

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
memory/2360-0-0x0000000073F8E000-0x0000000073F8F000-memory.dmp

Filesize
4KB

Download
memory/2360-1-0x0000000001290000-0x0000000001384000-memory.dmp

Filesize
976KB

Download
memory/2360-2-0x0000000073F80000-0x000000007466E000-memory.dmp

Filesize
6.9MB

Download
memory/2360-3-0x0000000000300000-0x000000000032C000-memory.dmp

Filesize
176KB

Download
memory/2360-4-0x0000000073F8E000-0x0000000073F8F000-memory.dmp

Filesize
4KB

Download
memory/2360-5-0x0000000073F80000-0x000000007466E000-memory.dmp

Filesize
6.9MB

Download
memory/2360-8-0x0000000073F80000-0x000000007466E000-memory.dmp

Filesize
6.9MB

Download
memory/2360-7-0x0000000000350000-0x0000000000362000-memory.dmp

Filesize
72KB

Download
memory/2360-27-0x0000000073F80000-0x000000007466E000-memory.dmp

Filesize
6.9MB

Download
memory/3044-14-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3044-16-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3044-17-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3044-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3044-20-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3044-25-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3044-23-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3044-12-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3044-28-0x0000000073F80000-0x000000007466E000-memory.dmp

Filesize
6.9MB

Download
memory/3044-29-0x0000000073F80000-0x000000007466E000-memory.dmp

Filesize
6.9MB

Download
memory/3044-30-0x0000000073F80000-0x000000007466E000-memory.dmp

Filesize
6.9MB

Download
memory/3044-31-0x0000000073F80000-0x000000007466E000-memory.dmp

Filesize
6.9MB

Download