agenttesla | 53b88a249d4c970ada7b688e9e44282aa3a36c44a4b170bd2988b5b53c8a224b

General

Target

Invoice0167562.exe
Size

635KB
MD5

204ac6e77b42347b084cd3fc41850fc1
SHA1

fe84f5afeceb6b463eb4505f51d2d868bf20d330
SHA256

53b88a249d4c970ada7b688e9e44282aa3a36c44a4b170bd2988b5b53c8a224b
SHA512

c0e7d63bc3e6a66854e342eb222892a140bde52d4af646b9e1125f2de04b1d9f6e6e99ae04d15d334af09165246e8bc7da11b728b55bf36acdf06a94d9fedbaa
SSDEEP

12288:rK6momWOHSR+MSaaICgYeem6OvbVXgX/8hHVbzvzg0WOvnbp9:Db/BR+Mtz0m6QVX0Y1U0/

Score

10^/10

agenttesla credential_access discovery execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.mailo.com
Port:
587
Username:
[email protected]
Password:
Nosakhare1995
Email To:
[email protected]

Signatures

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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1932	powershell.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

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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\ZyINVm = "C:\\Users\\Admin\\AppData\\Roaming\\ZyINVm\\ZyINVm.exe"	Invoice0167562.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	api.ipify.org
5	api.ipify.org
6	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1716 set thread context of 2736	1716	Invoice0167562.exe	35

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 4 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Invoice0167562.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Invoice0167562.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1592	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1716	Invoice0167562.exe
1716	Invoice0167562.exe
2736	Invoice0167562.exe
2736	Invoice0167562.exe
1932	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1716	Invoice0167562.exe
Token: SeDebugPrivilege	2736	Invoice0167562.exe
Token: SeDebugPrivilege	1932	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2736	Invoice0167562.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1716 wrote to memory of 1932	1716	Invoice0167562.exe	31
PID 1716 wrote to memory of 1932	1716	Invoice0167562.exe	31
PID 1716 wrote to memory of 1932	1716	Invoice0167562.exe	31
PID 1716 wrote to memory of 1932	1716	Invoice0167562.exe	31
PID 1716 wrote to memory of 1592	1716	Invoice0167562.exe	33
PID 1716 wrote to memory of 1592	1716	Invoice0167562.exe	33
PID 1716 wrote to memory of 1592	1716	Invoice0167562.exe	33
PID 1716 wrote to memory of 1592	1716	Invoice0167562.exe	33
PID 1716 wrote to memory of 2736	1716	Invoice0167562.exe	35
PID 1716 wrote to memory of 2736	1716	Invoice0167562.exe	35
PID 1716 wrote to memory of 2736	1716	Invoice0167562.exe	35
PID 1716 wrote to memory of 2736	1716	Invoice0167562.exe	35
PID 1716 wrote to memory of 2736	1716	Invoice0167562.exe	35
PID 1716 wrote to memory of 2736	1716	Invoice0167562.exe	35
PID 1716 wrote to memory of 2736	1716	Invoice0167562.exe	35
PID 1716 wrote to memory of 2736	1716	Invoice0167562.exe	35
PID 1716 wrote to memory of 2736	1716	Invoice0167562.exe	35

C:\Users\Admin\AppData\Local\Temp\Invoice0167562.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice0167562.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1716
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\OfGudSe.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1932
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OfGudSe" /XML "C:\Users\Admin\AppData\Local\Temp\tmpECB0.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1592
- C:\Users\Admin\AppData\Local\Temp\Invoice0167562.exe
  "C:\Users\Admin\AppData\Local\Temp\Invoice0167562.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2736

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

4

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpECB0.tmp

Filesize
1KB

MD5
8d1310e877e444d05fa05ad19747268e

SHA1
682db14a4c0e34b48de01f06b53e6873e0946b96

SHA256
8d86fa5026f583821440c1a33cdd12a3110ad4cf7576248208230902b5aa8fbc

SHA512
f38f99af75efc61871754e55788a1a0ed9f39288c7e153e5be53cba4fc5eb0270d130f87270be09bea5e68dc061400a440d0252c6cfb2fe6e03ed22bf6a08d8b

Download Submit
memory/1716-8-0x0000000004EC0000-0x0000000004F3C000-memory.dmp

Filesize
496KB

Download
memory/1716-3-0x0000000000640000-0x0000000000654000-memory.dmp

Filesize
80KB

Download
memory/1716-1-0x0000000000EF0000-0x0000000000F94000-memory.dmp

Filesize
656KB

Download
memory/1716-4-0x0000000073F1E000-0x0000000073F1F000-memory.dmp

Filesize
4KB

Download
memory/1716-5-0x0000000073F10000-0x00000000745FE000-memory.dmp

Filesize
6.9MB

Download
memory/1716-6-0x0000000000900000-0x000000000090A000-memory.dmp

Filesize
40KB

Download
memory/1716-7-0x0000000000910000-0x000000000091E000-memory.dmp

Filesize
56KB

Download
memory/1716-0-0x0000000073F1E000-0x0000000073F1F000-memory.dmp

Filesize
4KB

Download
memory/1716-29-0x0000000073F10000-0x00000000745FE000-memory.dmp

Filesize
6.9MB

Download
memory/1716-2-0x0000000073F10000-0x00000000745FE000-memory.dmp

Filesize
6.9MB

Download
memory/2736-20-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2736-14-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2736-18-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2736-28-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2736-26-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2736-23-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2736-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2736-16-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads