agenttesla | c013e2e7042bb9edb28a5b612acee9cf65d295e84c4ff1e2e0073db33b4511b6

General

Target

157b0e9ca724857af7eb346cba94ab85_JaffaCakes118.ps1
Size

524KB
MD5

157b0e9ca724857af7eb346cba94ab85
SHA1

9f34a6c259299860e7fa4cffd120d403e4a93e03
SHA256

c013e2e7042bb9edb28a5b612acee9cf65d295e84c4ff1e2e0073db33b4511b6
SHA512

048ad6e4014d760a7d2ddefbedc4913e923104441513df40d5b10ee19687201063e55b144ff37c8633a0f6b545bfd822da8d90c48676278855d720bad0982ade
SSDEEP

6144:+EM+0RRdILiJUeCuZk7jgOgRK9D+nlNJieP/4NzGFp:FMILiJUeCuZYgvRK9D+nlNJieP/4N2

Score

10^/10

agenttesla collection credential_access discovery execution keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

http://180.214.239.67/k/p15o/inc/ecae3584545810.php

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/2228-17-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2228-15-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2228-20-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2228-24-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2228-22-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	aspnet_compiler.exe

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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2316 set thread context of 2228	2316	powershell.exe	32

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2316	powershell.exe

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	aspnet_compiler.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2316	powershell.exe
2228	aspnet_compiler.exe
2228	aspnet_compiler.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2316	powershell.exe
Token: SeDebugPrivilege	2228	aspnet_compiler.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2228	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2316 wrote to memory of 2228	2316	powershell.exe	32
PID 2316 wrote to memory of 2228	2316	powershell.exe	32
PID 2316 wrote to memory of 2228	2316	powershell.exe	32
PID 2316 wrote to memory of 2228	2316	powershell.exe	32
PID 2316 wrote to memory of 2228	2316	powershell.exe	32
PID 2316 wrote to memory of 2228	2316	powershell.exe	32
PID 2316 wrote to memory of 2228	2316	powershell.exe	32
PID 2316 wrote to memory of 2228	2316	powershell.exe	32
PID 2316 wrote to memory of 2228	2316	powershell.exe	32

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\157b0e9ca724857af7eb346cba94ab85_JaffaCakes118.ps1
1⤵
- Suspicious use of SetThreadContext
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2316
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  #Powershell
  2⤵
  - Drops file in Drivers directory
  - 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:2228

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2228-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2228-25-0x00000000743AE000-0x00000000743AF000-memory.dmp

Filesize
4KB

Download
memory/2228-12-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2228-15-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2228-31-0x00000000743A0000-0x0000000074A8E000-memory.dmp

Filesize
6.9MB

Download
memory/2228-29-0x00000000743A0000-0x0000000074A8E000-memory.dmp

Filesize
6.9MB

Download
memory/2228-28-0x00000000743AE000-0x00000000743AF000-memory.dmp

Filesize
4KB

Download
memory/2228-27-0x00000000743A0000-0x0000000074A8E000-memory.dmp

Filesize
6.9MB

Download
memory/2228-17-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2228-20-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2228-22-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2228-32-0x00000000743A0000-0x0000000074A8E000-memory.dmp

Filesize
6.9MB

Download
memory/2228-14-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2228-24-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2316-6-0x0000000001E80000-0x0000000001E88000-memory.dmp

Filesize
32KB

Download
memory/2316-4-0x000007FEF5BDE000-0x000007FEF5BDF000-memory.dmp

Filesize
4KB

Download
memory/2316-5-0x000000001B6F0000-0x000000001B9D2000-memory.dmp

Filesize
2.9MB

Download
memory/2316-26-0x000007FEF5920000-0x000007FEF62BD000-memory.dmp

Filesize
9.6MB

Download
memory/2316-11-0x00000000022F0000-0x0000000002302000-memory.dmp

Filesize
72KB

Download
memory/2316-10-0x000007FEF5920000-0x000007FEF62BD000-memory.dmp

Filesize
9.6MB

Download
memory/2316-9-0x000007FEF5920000-0x000007FEF62BD000-memory.dmp

Filesize
9.6MB

Download
memory/2316-8-0x000007FEF5920000-0x000007FEF62BD000-memory.dmp

Filesize
9.6MB

Download
memory/2316-7-0x000007FEF5920000-0x000007FEF62BD000-memory.dmp

Filesize
9.6MB

Download

Analysis

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