agenttesla | cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101

General

Target

cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe
Size

501KB
MD5

3796b911951b048081a1a7829465f85b
SHA1

d07fb3c24272525dcb467445e3ddacf5072938a9
SHA256

cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101
SHA512

9f549d4f1b156e9fd129950f69583f3a9156bd40230b6fb00d68a42c35fc8f7af6b48a7bf08d6fee254667a5e3cb496cc11afafe39d21b1b760c1be21b62c467
SSDEEP

12288:y2ZyhvUi2iNPmCEdbrom61QUP7faoMNp7sklOYT:pghUi1lEdbrKzyJg+T

Score

10^/10

agenttesla discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
project2021blessing

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/1748-10-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1748-8-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1748-18-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1748-16-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1748-14-0x0000000000400000-0x000000000043C000-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

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\NXLun = "C:\\Users\\Admin\\AppData\\Roaming\\NXLun\\NXLun.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2480 set thread context of 1748	2480	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe	31

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	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2480	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe
2480	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe
1748	RegSvcs.exe
1748	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2480	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe
Token: SeDebugPrivilege	1748	RegSvcs.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2480 wrote to memory of 1748	2480	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe	31
PID 2480 wrote to memory of 1748	2480	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe	31
PID 2480 wrote to memory of 1748	2480	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe	31
PID 2480 wrote to memory of 1748	2480	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe	31
PID 2480 wrote to memory of 1748	2480	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe	31
PID 2480 wrote to memory of 1748	2480	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe	31
PID 2480 wrote to memory of 1748	2480	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe	31
PID 2480 wrote to memory of 1748	2480	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe	31
PID 2480 wrote to memory of 1748	2480	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe	31
PID 2480 wrote to memory of 1748	2480	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe	31
PID 2480 wrote to memory of 1748	2480	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe	31
PID 2480 wrote to memory of 1748	2480	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe	31

C:\Users\Admin\AppData\Local\Temp\cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe
"C:\Users\Admin\AppData\Local\Temp\cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2480
- 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
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1748

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

Discovery

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/1748-14-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1748-6-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1748-10-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1748-8-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1748-22-0x00000000749B0000-0x000000007509E000-memory.dmp

Filesize
6.9MB

Download
memory/1748-21-0x00000000749B0000-0x000000007509E000-memory.dmp

Filesize
6.9MB

Download
memory/1748-7-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1748-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1748-19-0x00000000749B0000-0x000000007509E000-memory.dmp

Filesize
6.9MB

Download
memory/1748-23-0x00000000749B0000-0x000000007509E000-memory.dmp

Filesize
6.9MB

Download
memory/1748-16-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1748-18-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2480-0-0x00000000749BE000-0x00000000749BF000-memory.dmp

Filesize
4KB

Download
memory/2480-1-0x00000000000E0000-0x0000000000164000-memory.dmp

Filesize
528KB

Download
memory/2480-2-0x00000000749B0000-0x000000007509E000-memory.dmp

Filesize
6.9MB

Download
memory/2480-20-0x00000000749B0000-0x000000007509E000-memory.dmp

Filesize
6.9MB

Download
memory/2480-5-0x0000000004B30000-0x0000000004B90000-memory.dmp

Filesize
384KB

Download
memory/2480-4-0x00000000749B0000-0x000000007509E000-memory.dmp

Filesize
6.9MB

Download
memory/2480-3-0x0000000000300000-0x000000000030E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads