agenttesla | 90c016c8affd8f058d6f190169aad49f6394cdf444aad8c0abc350df6553d447

General

Target

c27416bf42c21f536df09f8fa31eade8.exe
Size

614KB
MD5

c27416bf42c21f536df09f8fa31eade8
SHA1

520ccc18455dd84c64e93501bf9291499321bf43
SHA256

90c016c8affd8f058d6f190169aad49f6394cdf444aad8c0abc350df6553d447
SHA512

4ea3dbe14919d681c7d9b619bd130a2316f903ea97c43a7d973565f349f7bdd3c0946baa4c9f6fa61072c5748c518ea5d8be7e7fa8b4d189923a6d56f3c3f818
SSDEEP

12288:JG+mycGFINRA9isTmfxqAKsGHncjEL1j16u9HPFi7rWGf+Vr7GnpVLZHuEQigHT/:JGNaILwis6tKzcjs

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.melstar.in
Port:
587
Username:
[email protected]
Password:
natraj1978_24

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral2/memory/2104-13-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	c27416bf42c21f536df09f8fa31eade8.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

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-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c27416bf42c21f536df09f8fa31eade8.exe
Key opened	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c27416bf42c21f536df09f8fa31eade8.exe
Key opened	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c27416bf42c21f536df09f8fa31eade8.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-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kprUEGC = "C:\\Users\\Admin\\AppData\\Roaming\\kprUEGC\\kprUEGC.exe"	c27416bf42c21f536df09f8fa31eade8.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3736 set thread context of 2104	3736	c27416bf42c21f536df09f8fa31eade8.exe	94

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
3736	c27416bf42c21f536df09f8fa31eade8.exe
3736	c27416bf42c21f536df09f8fa31eade8.exe
3736	c27416bf42c21f536df09f8fa31eade8.exe
2104	c27416bf42c21f536df09f8fa31eade8.exe
2104	c27416bf42c21f536df09f8fa31eade8.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3736	c27416bf42c21f536df09f8fa31eade8.exe
Token: SeDebugPrivilege	2104	c27416bf42c21f536df09f8fa31eade8.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2104	c27416bf42c21f536df09f8fa31eade8.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3736 wrote to memory of 2104	3736	c27416bf42c21f536df09f8fa31eade8.exe	94
PID 3736 wrote to memory of 2104	3736	c27416bf42c21f536df09f8fa31eade8.exe	94
PID 3736 wrote to memory of 2104	3736	c27416bf42c21f536df09f8fa31eade8.exe	94
PID 3736 wrote to memory of 2104	3736	c27416bf42c21f536df09f8fa31eade8.exe	94
PID 3736 wrote to memory of 2104	3736	c27416bf42c21f536df09f8fa31eade8.exe	94
PID 3736 wrote to memory of 2104	3736	c27416bf42c21f536df09f8fa31eade8.exe	94
PID 3736 wrote to memory of 2104	3736	c27416bf42c21f536df09f8fa31eade8.exe	94
PID 3736 wrote to memory of 2104	3736	c27416bf42c21f536df09f8fa31eade8.exe	94

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c27416bf42c21f536df09f8fa31eade8.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	c27416bf42c21f536df09f8fa31eade8.exe

C:\Users\Admin\AppData\Local\Temp\c27416bf42c21f536df09f8fa31eade8.exe
"C:\Users\Admin\AppData\Local\Temp\c27416bf42c21f536df09f8fa31eade8.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3736
- C:\Users\Admin\AppData\Local\Temp\c27416bf42c21f536df09f8fa31eade8.exe
  "{path}"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:2104

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

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\c27416bf42c21f536df09f8fa31eade8.exe.log

Filesize
1KB

MD5
400f1cc1a0a0ce1cdabda365ab3368ce

SHA1
1ecf683f14271d84f3b6063493dce00ff5f42075

SHA256
c8fa64f4b69df13ed6408fd4a204f318a36c2f38c85d4a4d42adfc9173f73765

SHA512
14c8cfd58d097e5e89c8cabe1e665173f1ccf604a9ef70cdcb84116e265f90819c19c891be408e0ad7e29086a5c2ea2883b7a7d1184878dbbac63e2cabcd1c45

Download Submit
memory/2104-13-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2104-27-0x00000000056B0000-0x00000000056C0000-memory.dmp

Filesize
64KB

Download
memory/2104-26-0x00000000056B0000-0x00000000056C0000-memory.dmp

Filesize
64KB

Download
memory/2104-25-0x0000000006830000-0x0000000006880000-memory.dmp

Filesize
320KB

Download
memory/2104-23-0x00000000056B0000-0x00000000056C0000-memory.dmp

Filesize
64KB

Download
memory/2104-22-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/2104-20-0x0000000006590000-0x00000000065F6000-memory.dmp

Filesize
408KB

Download
memory/2104-19-0x0000000005BF0000-0x0000000005C08000-memory.dmp

Filesize
96KB

Download
memory/2104-18-0x00000000056B0000-0x00000000056C0000-memory.dmp

Filesize
64KB

Download
memory/2104-17-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/3736-6-0x0000000005280000-0x000000000528A000-memory.dmp

Filesize
40KB

Download
memory/3736-7-0x0000000005660000-0x0000000005668000-memory.dmp

Filesize
32KB

Download
memory/3736-11-0x00000000089B0000-0x0000000008A34000-memory.dmp

Filesize
528KB

Download
memory/3736-10-0x0000000005040000-0x0000000005050000-memory.dmp

Filesize
64KB

Download
memory/3736-16-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/3736-9-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/3736-8-0x0000000007030000-0x00000000070CC000-memory.dmp

Filesize
624KB

Download
memory/3736-12-0x0000000004E60000-0x0000000004E9E000-memory.dmp

Filesize
248KB

Download
memory/3736-1-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/3736-5-0x00000000052F0000-0x0000000005382000-memory.dmp

Filesize
584KB

Download
memory/3736-4-0x0000000005700000-0x0000000005CA4000-memory.dmp

Filesize
5.6MB

Download
memory/3736-3-0x0000000005040000-0x0000000005050000-memory.dmp

Filesize
64KB

Download
memory/3736-2-0x0000000004F60000-0x0000000004FC6000-memory.dmp

Filesize
408KB

Download
memory/3736-0-0x0000000000430000-0x00000000004D0000-memory.dmp

Filesize
640KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads