agenttesla | ec403bb4c5400f8cf0bde02c5c6cbad402f73307f84247be7605e49ec0ff7d52

Analysis

max time kernel
141s
max time network
120s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
19-12-2024 01:29

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General

Target

ec403bb4c5400f8cf0bde02c5c6cbad402f73307f84247be7605e49ec0ff7d52.exe
Size

1.1MB
MD5

75f20a9945c7e86ca2410653821f4429
SHA1

1258c4b711e67c7f0bf5a8eec801db6e4ec48918
SHA256

ec403bb4c5400f8cf0bde02c5c6cbad402f73307f84247be7605e49ec0ff7d52
SHA512

65d02dbc80d0366c9b91ec90d2fe36cd05230ffad088b1d76bb5c0264433faa4ace4a2674c5d076b8127794378473ed6c7cdebb1e9a58909d6de2eb23226da12
SSDEEP

12288:pVw26jIwQityY0vMA1MW9Kbwq3ILYWzBcOGHDN44PbytQ+xA/GGnt/rg:ph61pt9ZkM0mAFcOOLbd+2/Gs

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence spyware stealer trojan upx

Malware Config

Signatures

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

AgentTesla payload 7 IoCs

resource	yara_rule
behavioral1/memory/2760-13-0x0000000000380000-0x00000000003D6000-memory.dmp	family_agenttesla
behavioral1/memory/2760-12-0x0000000000380000-0x00000000003D6000-memory.dmp	family_agenttesla
behavioral1/memory/2760-10-0x0000000000400000-0x00000000004B8000-memory.dmp	family_agenttesla
behavioral1/memory/2760-9-0x0000000000400000-0x00000000004B8000-memory.dmp	family_agenttesla
behavioral1/memory/2760-25-0x0000000000400000-0x00000000004B8000-memory.dmp	family_agenttesla
behavioral1/memory/2760-24-0x0000000000400000-0x00000000004B8000-memory.dmp	family_agenttesla
behavioral1/memory/2760-26-0x0000000000400000-0x00000000004B8000-memory.dmp	family_agenttesla

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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ec403bb4c5400f8cf0bde02c5c6cbad402f73307f84247be7605e49ec0ff7d52.exe
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ec403bb4c5400f8cf0bde02c5c6cbad402f73307f84247be7605e49ec0ff7d52.exe
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ec403bb4c5400f8cf0bde02c5c6cbad402f73307f84247be7605e49ec0ff7d52.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\WifyAb = "C:\\Users\\Admin\\AppData\\Roaming\\WifyAb\\WifyAb.exe"	ec403bb4c5400f8cf0bde02c5c6cbad402f73307f84247be7605e49ec0ff7d52.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2668 set thread context of 2760	2668	ec403bb4c5400f8cf0bde02c5c6cbad402f73307f84247be7605e49ec0ff7d52.exe	30

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2760-3-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2760-10-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2760-11-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2760-9-0x0000000000400000-0x00000000004B8000-memory.dmp	upx
behavioral1/memory/2760-8-0x0000000000400000-0x00000000004B8000-memory.dmp	upx

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	ec403bb4c5400f8cf0bde02c5c6cbad402f73307f84247be7605e49ec0ff7d52.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ec403bb4c5400f8cf0bde02c5c6cbad402f73307f84247be7605e49ec0ff7d52.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2668	ec403bb4c5400f8cf0bde02c5c6cbad402f73307f84247be7605e49ec0ff7d52.exe
2760	ec403bb4c5400f8cf0bde02c5c6cbad402f73307f84247be7605e49ec0ff7d52.exe
2760	ec403bb4c5400f8cf0bde02c5c6cbad402f73307f84247be7605e49ec0ff7d52.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2668	ec403bb4c5400f8cf0bde02c5c6cbad402f73307f84247be7605e49ec0ff7d52.exe
2668	ec403bb4c5400f8cf0bde02c5c6cbad402f73307f84247be7605e49ec0ff7d52.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2760	ec403bb4c5400f8cf0bde02c5c6cbad402f73307f84247be7605e49ec0ff7d52.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 2760	2668	ec403bb4c5400f8cf0bde02c5c6cbad402f73307f84247be7605e49ec0ff7d52.exe	30
PID 2668 wrote to memory of 2760	2668	ec403bb4c5400f8cf0bde02c5c6cbad402f73307f84247be7605e49ec0ff7d52.exe	30
PID 2668 wrote to memory of 2760	2668	ec403bb4c5400f8cf0bde02c5c6cbad402f73307f84247be7605e49ec0ff7d52.exe	30
PID 2668 wrote to memory of 2760	2668	ec403bb4c5400f8cf0bde02c5c6cbad402f73307f84247be7605e49ec0ff7d52.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ec403bb4c5400f8cf0bde02c5c6cbad402f73307f84247be7605e49ec0ff7d52.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ec403bb4c5400f8cf0bde02c5c6cbad402f73307f84247be7605e49ec0ff7d52.exe

C:\Users\Admin\AppData\Local\Temp\ec403bb4c5400f8cf0bde02c5c6cbad402f73307f84247be7605e49ec0ff7d52.exe
"C:\Users\Admin\AppData\Local\Temp\ec403bb4c5400f8cf0bde02c5c6cbad402f73307f84247be7605e49ec0ff7d52.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Users\Admin\AppData\Local\Temp\ec403bb4c5400f8cf0bde02c5c6cbad402f73307f84247be7605e49ec0ff7d52.exe
  "C:\Users\Admin\AppData\Local\Temp\ec403bb4c5400f8cf0bde02c5c6cbad402f73307f84247be7605e49ec0ff7d52.exe"
  2⤵
  - 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:2760

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/2668-0-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/2668-1-0x0000000000492000-0x00000000004C1000-memory.dmp

Filesize
188KB

Download
memory/2668-5-0x0000000000492000-0x00000000004C1000-memory.dmp

Filesize
188KB

Download
memory/2668-2-0x0000000000400000-0x000000000051C000-memory.dmp

Filesize
1.1MB

Download
memory/2760-10-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2760-12-0x0000000000380000-0x00000000003D6000-memory.dmp

Filesize
344KB

Download
memory/2760-13-0x0000000000380000-0x00000000003D6000-memory.dmp

Filesize
344KB

Download
memory/2760-11-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2760-9-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2760-8-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2760-3-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2760-25-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2760-24-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2760-26-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download