agenttesla | 041def9971fbfe69b1ec7a3287682639c108f185f7c1ad1074c66a028333ab70

General

Target

NGHfInJvQIvDYac.exe
Size

833KB
MD5

030a21d056d9018283c058c8c59d1f97
SHA1

49caeb5288cec9da848ceef9e7044c2dd76fb451
SHA256

d6f7433bde15c8e568327aca58764818429eb451f087a7c3f10c6c9a81dffaf9
SHA512

d9e64a0a6ebae8810e76a9f78ba16cbeae154d147e0bbba54c6d21278a34592783ab00b0f2c100173f50d9f51aec7101d87141bc885dddfa552ce2521704f35d
SSDEEP

12288:RnKUjdkHK7zdtcaEoRgLHnLXX5LTDsah2O2jEhhLqkgzuazSxjCgAhuANMD:RKUj5RtcaFKLHDtaDjEhpqkWuaAjCok

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.yucesankepenk.com.tr
Port:
587
Username:
[email protected]
Password:
Rbv7r%to2@RR

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/1868-13-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	NGHfInJvQIvDYac.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 3 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

Credentials from Web Browsers
T1555.003
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-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	NGHfInJvQIvDYac.exe
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	NGHfInJvQIvDYac.exe
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	NGHfInJvQIvDYac.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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mBRCdKH = "C:\\Users\\Admin\\AppData\\Roaming\\mBRCdKH\\mBRCdKH.exe"	NGHfInJvQIvDYac.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 64 set thread context of 1868	64	NGHfInJvQIvDYac.exe	91

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1868	NGHfInJvQIvDYac.exe
1868	NGHfInJvQIvDYac.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1868	NGHfInJvQIvDYac.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1868	NGHfInJvQIvDYac.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1868	NGHfInJvQIvDYac.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 64 wrote to memory of 1868	64	NGHfInJvQIvDYac.exe	91
PID 64 wrote to memory of 1868	64	NGHfInJvQIvDYac.exe	91
PID 64 wrote to memory of 1868	64	NGHfInJvQIvDYac.exe	91
PID 64 wrote to memory of 1868	64	NGHfInJvQIvDYac.exe	91
PID 64 wrote to memory of 1868	64	NGHfInJvQIvDYac.exe	91
PID 64 wrote to memory of 1868	64	NGHfInJvQIvDYac.exe	91
PID 64 wrote to memory of 1868	64	NGHfInJvQIvDYac.exe	91
PID 64 wrote to memory of 1868	64	NGHfInJvQIvDYac.exe	91

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	NGHfInJvQIvDYac.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	NGHfInJvQIvDYac.exe

C:\Users\Admin\AppData\Local\Temp\NGHfInJvQIvDYac.exe
"C:\Users\Admin\AppData\Local\Temp\NGHfInJvQIvDYac.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:64
- C:\Users\Admin\AppData\Local\Temp\NGHfInJvQIvDYac.exe
  "C:\Users\Admin\AppData\Local\Temp\NGHfInJvQIvDYac.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 behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:1868

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

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

5

T1552

Credentials In Files

4

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

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\NGHfInJvQIvDYac.exe.log

Filesize
1KB

MD5
17573558c4e714f606f997e5157afaac

SHA1
13e16e9415ceef429aaf124139671ebeca09ed23

SHA256
c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

SHA512
f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

Download Submit
memory/64-12-0x0000000009BD0000-0x0000000009C0C000-memory.dmp

Filesize
240KB

Download
memory/64-8-0x0000000005B10000-0x0000000005B26000-memory.dmp

Filesize
88KB

Download
memory/64-3-0x0000000005C80000-0x0000000006224000-memory.dmp

Filesize
5.6MB

Download
memory/64-4-0x00000000056D0000-0x0000000005762000-memory.dmp

Filesize
584KB

Download
memory/64-5-0x00000000055F0000-0x00000000055FA000-memory.dmp

Filesize
40KB

Download
memory/64-6-0x00000000057D0000-0x0000000005826000-memory.dmp

Filesize
344KB

Download
memory/64-7-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/64-17-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/64-9-0x000000007477E000-0x000000007477F000-memory.dmp

Filesize
4KB

Download
memory/64-10-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/64-11-0x0000000007540000-0x00000000075DC000-memory.dmp

Filesize
624KB

Download
memory/64-2-0x0000000005630000-0x00000000056CC000-memory.dmp

Filesize
624KB

Download
memory/64-0-0x000000007477E000-0x000000007477F000-memory.dmp

Filesize
4KB

Download
memory/64-1-0x0000000000B30000-0x0000000000C06000-memory.dmp

Filesize
856KB

Download
memory/1868-25-0x0000000000DC0000-0x0000000000E10000-memory.dmp

Filesize
320KB

Download
memory/1868-13-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1868-18-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/1868-19-0x0000000005320000-0x0000000005338000-memory.dmp

Filesize
96KB

Download
memory/1868-20-0x00000000055A0000-0x0000000005606000-memory.dmp

Filesize
408KB

Download
memory/1868-21-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/1868-22-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/1868-16-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/1868-26-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/1868-27-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads