agenttesla | 340a1019886e0ecc7af290da92dad1389d53d91c2b0887b4cf631ef01be1591d

Analysis

max time kernel
135s
max time network
104s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
29/08/2024, 20:04

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General

Target

PI-897657546.exe
Size

619KB
MD5

bce45e9ce0d7582aadf9258a7f2c11d4
SHA1

e6364b28735b2612a871f13bbe0186775a6f3dbd
SHA256

7e6df8e621709bf5a958031c2826bc1dccc91cc36fc47e783504342061f7f67c
SHA512

9704c9c52a77e04d6f6d54e73ff7acfc4bb2b69cff20f44d2bfaa15154fa8935d7e3a893a5645bccba2af74fc00e9c4f606e4432d665bec74f5362ac7a6cc348
SSDEEP

6144:3aUPSc6VEJD6LpMWHPjsk3yzS5saUQq4MKtPxXJ6/mydrhCfiOp90o9rL9R8:3aUb6VEt6jHrr33qvKJ9JCoiA9RPA

Score

10^/10

agenttesla agilenet collection credential_access defense_evasion discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.totalise.co.uk
Port:
587
Username:
[email protected]
Password:
Password1

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/4356-32-0x0000000000400000-0x000000000044C000-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	PI-897657546.exe
Key opened	\Registry\Machine\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Custom\InstallUtil.exe	zumag.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	PI-897657546.exe

Executes dropped EXE 2 IoCs

pid	Process
3416	zumag.exe
4356	InstallUtil.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
behavioral2/memory/452-4-0x0000000005190000-0x00000000051A4000-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
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-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zumag = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\AppData\\Roaming\\zumag.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3416 set thread context of 4356	3416	zumag.exe	101

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 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	PI-897657546.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zumag.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
452	PI-897657546.exe
452	PI-897657546.exe
452	PI-897657546.exe
452	PI-897657546.exe
452	PI-897657546.exe
452	PI-897657546.exe
452	PI-897657546.exe
452	PI-897657546.exe
452	PI-897657546.exe
452	PI-897657546.exe
452	PI-897657546.exe
452	PI-897657546.exe
452	PI-897657546.exe
452	PI-897657546.exe
452	PI-897657546.exe
452	PI-897657546.exe
452	PI-897657546.exe
452	PI-897657546.exe
452	PI-897657546.exe
452	PI-897657546.exe
452	PI-897657546.exe
452	PI-897657546.exe
452	PI-897657546.exe
452	PI-897657546.exe
3416	zumag.exe
3416	zumag.exe
3416	zumag.exe
4356	InstallUtil.exe
4356	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	452	PI-897657546.exe
Token: SeDebugPrivilege	3416	zumag.exe
Token: SeDebugPrivilege	4356	InstallUtil.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4356	InstallUtil.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 452 wrote to memory of 4180	452	PI-897657546.exe	87
PID 452 wrote to memory of 4180	452	PI-897657546.exe	87
PID 452 wrote to memory of 4180	452	PI-897657546.exe	87
PID 4180 wrote to memory of 2796	4180	cmd.exe	89
PID 4180 wrote to memory of 2796	4180	cmd.exe	89
PID 4180 wrote to memory of 2796	4180	cmd.exe	89
PID 452 wrote to memory of 3416	452	PI-897657546.exe	97
PID 452 wrote to memory of 3416	452	PI-897657546.exe	97
PID 452 wrote to memory of 3416	452	PI-897657546.exe	97
PID 3416 wrote to memory of 4356	3416	zumag.exe	101
PID 3416 wrote to memory of 4356	3416	zumag.exe	101
PID 3416 wrote to memory of 4356	3416	zumag.exe	101
PID 3416 wrote to memory of 4356	3416	zumag.exe	101
PID 3416 wrote to memory of 4356	3416	zumag.exe	101
PID 3416 wrote to memory of 4356	3416	zumag.exe	101
PID 3416 wrote to memory of 4356	3416	zumag.exe	101
PID 3416 wrote to memory of 4356	3416	zumag.exe	101

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\PI-897657546.exe
"C:\Users\Admin\AppData\Local\Temp\PI-897657546.exe"
1⤵
- System Binary Proxy Execution: InstallUtil
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:452
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v zumag /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\zumag.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4180
- - C:\Windows\SysWOW64\reg.exe
    REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v zumag /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\zumag.exe"
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    PID:2796
- C:\Users\Admin\AppData\Roaming\zumag.exe
  "C:\Users\Admin\AppData\Roaming\zumag.exe"
  2⤵
  - System Binary Proxy Execution: InstallUtil
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3416
- - C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
    "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
    3⤵
    - Executes dropped EXE
    - 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:4356

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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

Query Registry

T1012

System Information Discovery

T1082

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

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

Filesize
41KB

MD5
5d4073b2eb6d217c19f2b22f21bf8d57

SHA1
f0209900fbf08d004b886a0b3ba33ea2b0bf9da8

SHA256
ac1a3f21fcc88f9cee7bf51581eafba24cc76c924f0821deb2afdf1080ddf3d3

SHA512
9ac94880684933ba3407cdc135abc3047543436567af14cd9269c4adc5a6535db7b867d6de0d6238a21b94e69f9890dbb5739155871a624520623a7e56872159

Download Submit
C:\Users\Admin\AppData\Roaming\zumag.exe

Filesize
619KB

MD5
bce45e9ce0d7582aadf9258a7f2c11d4

SHA1
e6364b28735b2612a871f13bbe0186775a6f3dbd

SHA256
7e6df8e621709bf5a958031c2826bc1dccc91cc36fc47e783504342061f7f67c

SHA512
9704c9c52a77e04d6f6d54e73ff7acfc4bb2b69cff20f44d2bfaa15154fa8935d7e3a893a5645bccba2af74fc00e9c4f606e4432d665bec74f5362ac7a6cc348

Download Submit
memory/452-13-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/452-9-0x00000000054C0000-0x00000000054C8000-memory.dmp

Filesize
32KB

Download
memory/452-4-0x0000000005190000-0x00000000051A4000-memory.dmp

Filesize
80KB

Download
memory/452-5-0x00000000051A0000-0x00000000051A8000-memory.dmp

Filesize
32KB

Download
memory/452-6-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/452-7-0x0000000005200000-0x0000000005208000-memory.dmp

Filesize
32KB

Download
memory/452-8-0x0000000005670000-0x00000000056B4000-memory.dmp

Filesize
272KB

Download
memory/452-1-0x00000000007A0000-0x0000000000840000-memory.dmp

Filesize
640KB

Download
memory/452-11-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/452-12-0x000000007443E000-0x000000007443F000-memory.dmp

Filesize
4KB

Download
memory/452-0-0x000000007443E000-0x000000007443F000-memory.dmp

Filesize
4KB

Download
memory/452-2-0x00000000056E0000-0x0000000005C84000-memory.dmp

Filesize
5.6MB

Download
memory/452-3-0x0000000005210000-0x00000000052A2000-memory.dmp

Filesize
584KB

Download
memory/452-27-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/3416-36-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/3416-29-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/3416-31-0x00000000064C0000-0x00000000064E2000-memory.dmp

Filesize
136KB

Download
memory/3416-25-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/3416-28-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/4356-32-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4356-37-0x00000000050A0000-0x000000000513C000-memory.dmp

Filesize
624KB

Download
memory/4356-38-0x0000000005580000-0x0000000005598000-memory.dmp

Filesize
96KB

Download
memory/4356-39-0x0000000005D40000-0x0000000005DA6000-memory.dmp

Filesize
408KB

Download
memory/4356-40-0x0000000006400000-0x0000000006450000-memory.dmp

Filesize
320KB

Download
memory/4356-41-0x00000000063C0000-0x00000000063CA000-memory.dmp

Filesize
40KB

Download