agenttesla | f93fadb07a86ab75302290d70b2adb3bdbd55f48bd4357147436cb5f2466af58

General

Target

SPECIFICATIONS.exe
Size

593KB
MD5

22f0e30734f6f9b47f01e8a4c0b5c3b2
SHA1

c165ee5537f8a0f40fdb28020caf45d896195224
SHA256

f11112b253e141587881a55fe11cb6de669b7a9988fcd1b6b70c9caffc302e07
SHA512

b7da4110b918da2f8986707e169cf05ead4523b41b7c6d3bb999ca78d9ce9db0784d510b866da80c37dd93e2fba87588d2a8e8b7d92786a85bbb34472a2c19a1
SSDEEP

12288:POykmX/JQYZN3EgyhqkR/1PUhyV21xEkFqVcsQaqAqn26jZsU:2NAxQOlfm918hyVIxEaGcsQRAA26t1

Score

10^/10

agenttesla discovery evasion execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: ftp
Host:
ftp.ercolina-usa.com
Port:
21
Username:
[email protected]
Password:
nXe0M~WkW&nJ

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.ercolina-usa.com
Port:
21
Username:
[email protected]
Password:
nXe0M~WkW&nJ

Signatures

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

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	SPECIFICATIONS.exe

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
1200	powershell.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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\newapp = "C:\\Users\\Admin\\AppData\\Roaming\\newapp\\newapp.exe"	jsc.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	SPECIFICATIONS.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	SPECIFICATIONS.exe

Looks up external IP address via web service 2 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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1388 set thread context of 3068	1388	SPECIFICATIONS.exe	33

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 1 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	jsc.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1200	powershell.exe
3068	jsc.exe
3068	jsc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1200	powershell.exe
Token: SeDebugPrivilege	3068	jsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3068	jsc.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1388 wrote to memory of 1200	1388	SPECIFICATIONS.exe	31
PID 1388 wrote to memory of 1200	1388	SPECIFICATIONS.exe	31
PID 1388 wrote to memory of 1200	1388	SPECIFICATIONS.exe	31
PID 1388 wrote to memory of 3068	1388	SPECIFICATIONS.exe	33
PID 1388 wrote to memory of 3068	1388	SPECIFICATIONS.exe	33
PID 1388 wrote to memory of 3068	1388	SPECIFICATIONS.exe	33
PID 1388 wrote to memory of 3068	1388	SPECIFICATIONS.exe	33
PID 1388 wrote to memory of 3068	1388	SPECIFICATIONS.exe	33
PID 1388 wrote to memory of 3068	1388	SPECIFICATIONS.exe	33
PID 1388 wrote to memory of 3068	1388	SPECIFICATIONS.exe	33
PID 1388 wrote to memory of 3068	1388	SPECIFICATIONS.exe	33
PID 1388 wrote to memory of 3068	1388	SPECIFICATIONS.exe	33
PID 1388 wrote to memory of 2916	1388	SPECIFICATIONS.exe	34
PID 1388 wrote to memory of 2916	1388	SPECIFICATIONS.exe	34
PID 1388 wrote to memory of 2916	1388	SPECIFICATIONS.exe	34

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	SPECIFICATIONS.exe

C:\Users\Admin\AppData\Local\Temp\SPECIFICATIONS.exe
"C:\Users\Admin\AppData\Local\Temp\SPECIFICATIONS.exe"
1⤵
- UAC bypass
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1388
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\SPECIFICATIONS.exe" -Force
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1200
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.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:3068
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 1388 -s 812
  2⤵
  PID:2916

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Impair Defenses

1

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1200-8-0x0000000002830000-0x00000000028B0000-memory.dmp

Filesize
512KB

Download
memory/1200-21-0x000000001B500000-0x000000001B7E2000-memory.dmp

Filesize
2.9MB

Download
memory/1200-22-0x0000000001E20000-0x0000000001E28000-memory.dmp

Filesize
32KB

Download
memory/1388-0-0x000007FEF5A93000-0x000007FEF5A94000-memory.dmp

Filesize
4KB

Download
memory/1388-1-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/1388-2-0x000007FEF5A90000-0x000007FEF647C000-memory.dmp

Filesize
9.9MB

Download
memory/1388-3-0x00000000006A0000-0x0000000000736000-memory.dmp

Filesize
600KB

Download
memory/1388-25-0x000007FEF5A90000-0x000007FEF647C000-memory.dmp

Filesize
9.9MB

Download
memory/3068-20-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/3068-18-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/3068-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3068-19-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/3068-16-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/3068-13-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/3068-9-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/3068-11-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads