agenttesla | 775f508ce9aa128d16970e85f0b02f8f200c50dde94a1e345621069dd7042330

General

Target

SWIFT-MT108.exe
Size

933KB
MD5

871b03e7a9ec6bebfcb55b5e4b913959
SHA1

c3ecd6469209c4821f817b1e3a9a985aa7481a4c
SHA256

775f508ce9aa128d16970e85f0b02f8f200c50dde94a1e345621069dd7042330
SHA512

da34d41196feb0bdaac6327039d31a392793440ac1bb0f93beb8e7443fb53698475298b3be499dc0f9806c27db7e5baa1557e3d9fb605696a410857bb3769323

Score

10^/10

spyware keylogger trojan stealer agenttesla persistence

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
smtp.bnb-spa.com
Port:
587
Username:
[email protected]
Password:
}iPxp@l#21aE

Signatures

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2808 wrote to memory of 3812	2808	SWIFT-MT108.exe	67
PID 2808 wrote to memory of 3812	2808	SWIFT-MT108.exe	67
PID 2808 wrote to memory of 3812	2808	SWIFT-MT108.exe	67
PID 2808 wrote to memory of 3812	2808	SWIFT-MT108.exe	67
PID 2808 wrote to memory of 3812	2808	SWIFT-MT108.exe	67
PID 2808 wrote to memory of 3840	2808	SWIFT-MT108.exe	68
PID 2808 wrote to memory of 3840	2808	SWIFT-MT108.exe	68
PID 2808 wrote to memory of 3840	2808	SWIFT-MT108.exe	68

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2808	SWIFT-MT108.exe

UPX packed file 3 IoCs

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

resource	yara_rule
behavioral2/memory/3840-1-0x0000000000400000-0x00000000004AF000-memory.dmp	upx
behavioral2/memory/3840-3-0x0000000000400000-0x00000000004AF000-memory.dmp	upx
behavioral2/memory/3840-4-0x0000000000400000-0x00000000004AF000-memory.dmp	upx

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\nmp.vbs	notepad.exe

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

Data from Local System
T1005

Credentials in Files
T1081

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2808	SWIFT-MT108.exe
2808	SWIFT-MT108.exe
3840	SWIFT-MT108.exe
3840	SWIFT-MT108.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2808 set thread context of 3840	2808	SWIFT-MT108.exe	68

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3840	SWIFT-MT108.exe

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

Data from Local System
T1005

Credentials in Files
T1081
AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

Adds Run entry to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Windows\CurrentVersion\Run\Mymp4 = "C:\\Users\\Admin\\AppData\\Roaming\\Mymp4\\Mymp4.exe"	SWIFT-MT108.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

Data from Local System
T1005

Credentials in Files
T1081

C:\Users\Admin\AppData\Local\Temp\SWIFT-MT108.exe
"C:\Users\Admin\AppData\Local\Temp\SWIFT-MT108.exe"
1⤵
- Suspicious use of WriteProcessMemory
- Suspicious behavior: MapViewOfSection
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetThreadContext
PID:2808
- C:\Windows\SysWOW64\notepad.exe
  "C:\Windows\system32\notepad.exe"
  2⤵
  - Drops startup file
  PID:3812
- C:\Users\Admin\AppData\Local\Temp\SWIFT-MT108.exe
  "C:\Users\Admin\AppData\Local\Temp\SWIFT-MT108.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Adds Run entry to start application
  PID:3840

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3840-1-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/3840-3-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/3840-4-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/3840-5-0x00000000021A0000-0x00000000021F2000-memory.dmp

Filesize
328KB

Download
memory/3840-6-0x0000000002332000-0x0000000002333000-memory.dmp

Filesize
4KB

Download

Analysis

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