agenttesla | 1496e0af114dcc7b8a582a6640cd662e03682597021c5443b713d238093e8097

General

Target

JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe
Size

508KB
MD5

0b5beef801a105065d60c914ddfe9d35
SHA1

65b5d01bd6a75c690ef1b3912dfd964e7d220474
SHA256

1496e0af114dcc7b8a582a6640cd662e03682597021c5443b713d238093e8097
SHA512

3f4b8718bddba82e2d2c0791d63980e54b348af1e0e7eedea1fde66308db093c24c56445586789b195ce2691152969403242b5b26badec300fa27c358d6c2a7e
SSDEEP

12288:bnrspLUi2iNDMrU2tmm9Az51qhimWJTfoTESU5x7GGuhoE:DgBUi1FMqzLEpWJTRx7Eh5

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
sg2plcpnl0023.prod.sin2.secureserver.net
Port:
587
Username:
[email protected]
Password:
User@40378

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral2/memory/2736-11-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	RegSvcs.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-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NXLun = "C:\\Users\\Admin\\AppData\\Roaming\\NXLun\\NXLun.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 748 set thread context of 2736	748	JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe	99

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	JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
748	JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe
748	JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe
2736	RegSvcs.exe
2736	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	748	JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe
Token: SeDebugPrivilege	2736	RegSvcs.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 748 wrote to memory of 2736	748	JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe	99
PID 748 wrote to memory of 2736	748	JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe	99
PID 748 wrote to memory of 2736	748	JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe	99
PID 748 wrote to memory of 2736	748	JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe	99
PID 748 wrote to memory of 2736	748	JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe	99
PID 748 wrote to memory of 2736	748	JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe	99
PID 748 wrote to memory of 2736	748	JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe	99
PID 748 wrote to memory of 2736	748	JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe	99

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:748
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2736

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

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

Loading Replay Monitor...

Downloads

memory/748-10-0x0000000006500000-0x0000000006560000-memory.dmp

Filesize
384KB

Download
memory/748-9-0x00000000062B0000-0x000000000634C000-memory.dmp

Filesize
624KB

Download
memory/748-2-0x00000000059E0000-0x0000000005F84000-memory.dmp

Filesize
5.6MB

Download
memory/748-3-0x00000000054D0000-0x0000000005562000-memory.dmp

Filesize
584KB

Download
memory/748-4-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/748-5-0x0000000005570000-0x000000000557A000-memory.dmp

Filesize
40KB

Download
memory/748-6-0x0000000005710000-0x000000000571E000-memory.dmp

Filesize
56KB

Download
memory/748-7-0x0000000074D7E000-0x0000000074D7F000-memory.dmp

Filesize
4KB

Download
memory/748-8-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/748-14-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/748-1-0x0000000000A80000-0x0000000000B06000-memory.dmp

Filesize
536KB

Download
memory/748-0-0x0000000074D7E000-0x0000000074D7F000-memory.dmp

Filesize
4KB

Download
memory/2736-11-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2736-13-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/2736-15-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/2736-16-0x00000000053F0000-0x0000000005408000-memory.dmp

Filesize
96KB

Download
memory/2736-17-0x0000000005640000-0x00000000056A6000-memory.dmp

Filesize
408KB

Download
memory/2736-18-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/2736-19-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/2736-22-0x0000000006600000-0x0000000006650000-memory.dmp

Filesize
320KB

Download
memory/2736-23-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/2736-24-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads