agenttesla | 9760939f7944a82916cf2fb969108374fbea6bb77217dbd01899b71b16d8a6a0

Analysis

max time kernel
121s
max time network
121s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
23/08/2024, 21:38

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General

Target

TNTPL 01092033102.exe
Size

876KB
MD5

7224c9668610d2e7c722e98e2aa937cb
SHA1

528fd30e17878c4382170293fde01b3486293c9e
SHA256

86b7a8f781a421b4e69ef1538bc1c122b0f317acbab82fa23356dfebb18af991
SHA512

da994362157f2909db63ce8bc4eab8073e450e0652750e3153c491c53411ee69bce91796de0d8e5f6dddb5e667bbd1be318c292b34eb4387d625d28114530272
SSDEEP

6144:6ZYZWBXFXfMrKmcewHuqIDU7/5mgS7q0XQxvV2B/TsSZ7ADmQK5DLlH:dxFEIDC/5mi5KLsS2KhR

Score

10^/10

agenttesla agilenet collection credential_access defense_evasion discovery keylogger spyware stealer trojan

Malware Config

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/2648-19-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla
behavioral1/memory/2648-17-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla
behavioral1/memory/2648-23-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla
behavioral1/memory/2648-26-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla
behavioral1/memory/2648-30-0x0000000000400000-0x0000000000466000-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	TNTPL 01092033102.exe
Key opened	\Registry\Machine\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Custom\InstallUtil.exe	TNTPL 01092033102.exe

Executes dropped EXE 1 IoCs

pid	Process
2648	InstallUtil.exe

Loads dropped DLL 1 IoCs

pid	Process
2864	TNTPL 01092033102.exe

Obfuscated with Agile.Net obfuscator 1 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

resource	yara_rule
behavioral1/memory/2864-2-0x00000000002D0000-0x00000000002E4000-memory.dmp	agile_net

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2864 set thread context of 2648	2864	TNTPL 01092033102.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	TNTPL 01092033102.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2864	TNTPL 01092033102.exe
2648	InstallUtil.exe
2648	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2864	TNTPL 01092033102.exe
Token: SeDebugPrivilege	2648	InstallUtil.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2864 wrote to memory of 2648	2864	TNTPL 01092033102.exe	31
PID 2864 wrote to memory of 2648	2864	TNTPL 01092033102.exe	31
PID 2864 wrote to memory of 2648	2864	TNTPL 01092033102.exe	31
PID 2864 wrote to memory of 2648	2864	TNTPL 01092033102.exe	31
PID 2864 wrote to memory of 2648	2864	TNTPL 01092033102.exe	31
PID 2864 wrote to memory of 2648	2864	TNTPL 01092033102.exe	31
PID 2864 wrote to memory of 2648	2864	TNTPL 01092033102.exe	31
PID 2864 wrote to memory of 2648	2864	TNTPL 01092033102.exe	31
PID 2864 wrote to memory of 2648	2864	TNTPL 01092033102.exe	31
PID 2864 wrote to memory of 2648	2864	TNTPL 01092033102.exe	31
PID 2864 wrote to memory of 2648	2864	TNTPL 01092033102.exe	31
PID 2864 wrote to memory of 2648	2864	TNTPL 01092033102.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\TNTPL 01092033102.exe
"C:\Users\Admin\AppData\Local\Temp\TNTPL 01092033102.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:2864
- 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:2648

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

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

Filesize
40KB

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
memory/2648-23-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2648-31-0x0000000074180000-0x000000007486E000-memory.dmp

Filesize
6.9MB

Download
memory/2648-34-0x0000000074180000-0x000000007486E000-memory.dmp

Filesize
6.9MB

Download
memory/2648-33-0x0000000074180000-0x000000007486E000-memory.dmp

Filesize
6.9MB

Download
memory/2648-30-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2648-17-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2648-26-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2648-15-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2648-19-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2648-13-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2648-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2864-2-0x00000000002D0000-0x00000000002E4000-memory.dmp

Filesize
80KB

Download
memory/2864-1-0x0000000000AD0000-0x0000000000BB2000-memory.dmp

Filesize
904KB

Download
memory/2864-9-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2864-0-0x000000007418E000-0x000000007418F000-memory.dmp

Filesize
4KB

Download
memory/2864-8-0x0000000074180000-0x000000007486E000-memory.dmp

Filesize
6.9MB

Download
memory/2864-7-0x0000000074180000-0x000000007486E000-memory.dmp

Filesize
6.9MB

Download
memory/2864-5-0x0000000074180000-0x000000007486E000-memory.dmp

Filesize
6.9MB

Download
memory/2864-4-0x000000007418E000-0x000000007418F000-memory.dmp

Filesize
4KB

Download
memory/2864-32-0x0000000074180000-0x000000007486E000-memory.dmp

Filesize
6.9MB

Download
memory/2864-3-0x0000000074180000-0x000000007486E000-memory.dmp

Filesize
6.9MB

Download