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 5 IoCs

resource	yara_rule
behavioral1/memory/2740-21-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2740-19-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2740-17-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2740-13-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2740-11-0x0000000000400000-0x000000000043C000-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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\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-1-5-21-3290804112-2823094203-3137964600-1000\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 2112 set thread context of 2740	2112	JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe	30

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

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2112	JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe
2112	JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe
2740	RegSvcs.exe
2740	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2112	JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe
Token: SeDebugPrivilege	2740	RegSvcs.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 2740	2112	JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe	30
PID 2112 wrote to memory of 2740	2112	JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe	30
PID 2112 wrote to memory of 2740	2112	JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe	30
PID 2112 wrote to memory of 2740	2112	JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe	30
PID 2112 wrote to memory of 2740	2112	JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe	30
PID 2112 wrote to memory of 2740	2112	JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe	30
PID 2112 wrote to memory of 2740	2112	JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe	30
PID 2112 wrote to memory of 2740	2112	JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe	30
PID 2112 wrote to memory of 2740	2112	JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe	30
PID 2112 wrote to memory of 2740	2112	JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe	30
PID 2112 wrote to memory of 2740	2112	JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe	30
PID 2112 wrote to memory of 2740	2112	JaffaCakes118_0b5beef801a105065d60c914ddfe9d35.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\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:2112
- 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:2740

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

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Downloads

memory/2112-0-0x000000007483E000-0x000000007483F000-memory.dmp

Filesize
4KB

Download
memory/2112-1-0x0000000000F20000-0x0000000000FA6000-memory.dmp

Filesize
536KB

Download
memory/2112-2-0x0000000074830000-0x0000000074F1E000-memory.dmp

Filesize
6.9MB

Download
memory/2112-3-0x0000000000410000-0x000000000041E000-memory.dmp

Filesize
56KB

Download
memory/2112-4-0x000000007483E000-0x000000007483F000-memory.dmp

Filesize
4KB

Download
memory/2112-5-0x0000000074830000-0x0000000074F1E000-memory.dmp

Filesize
6.9MB

Download
memory/2112-6-0x0000000004BA0000-0x0000000004C00000-memory.dmp

Filesize
384KB

Download
memory/2112-23-0x0000000074830000-0x0000000074F1E000-memory.dmp

Filesize
6.9MB

Download
memory/2740-17-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2740-9-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2740-21-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2740-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2740-22-0x0000000074830000-0x0000000074F1E000-memory.dmp

Filesize
6.9MB

Download
memory/2740-13-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2740-11-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2740-19-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2740-7-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2740-24-0x0000000074830000-0x0000000074F1E000-memory.dmp

Filesize
6.9MB

Download
memory/2740-25-0x0000000074830000-0x0000000074F1E000-memory.dmp

Filesize
6.9MB

Download
memory/2740-26-0x0000000074830000-0x0000000074F1E000-memory.dmp

Filesize
6.9MB

Download
memory/2740-29-0x0000000074830000-0x0000000074F1E000-memory.dmp

Filesize
6.9MB

Download
memory/2740-30-0x0000000074830000-0x0000000074F1E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads