agenttesla | ae451bf0f958bf82ce70a55e5e0af6fbb70f1b06cd0bacb5bdc196c16f6da11b

General

Target

Proforma Invoice.exe
Size

923KB
MD5

2b952a9344d926a08dfd69de423528e2
SHA1

823670d855617a727ae9d9aa0858e49c558bcf41
SHA256

ae451bf0f958bf82ce70a55e5e0af6fbb70f1b06cd0bacb5bdc196c16f6da11b
SHA512

e9783f69df250cbee29aba8ef09bdbf0de4a6ca1f181b1505bd772aec43753b828befc46e717f6654a0010de93dbe9623abc3027746e8b383e2cb02712159236

Score

10^/10

spyware keylogger trojan stealer agenttesla persistence

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
smtp.shyuanhzimeng.com
Port:
587
Username:
[email protected]
Password:
I$uEADXU7

Signatures

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

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sales1.vbs	notepad.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1740	Proforma Invoice.exe
1740	Proforma Invoice.exe
4088	Proforma Invoice.exe
4088	Proforma Invoice.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1740	Proforma Invoice.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1740 set thread context of 4088	1740	Proforma Invoice.exe	69

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4088	Proforma Invoice.exe

UPX packed file 3 IoCs

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

resource	yara_rule
behavioral2/memory/4088-1-0x0000000000400000-0x00000000004A4000-memory.dmp	upx
behavioral2/memory/4088-3-0x0000000000400000-0x00000000004A4000-memory.dmp	upx
behavioral2/memory/4088-4-0x0000000000400000-0x00000000004A4000-memory.dmp	upx

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1740 wrote to memory of 1988	1740	Proforma Invoice.exe	68
PID 1740 wrote to memory of 1988	1740	Proforma Invoice.exe	68
PID 1740 wrote to memory of 1988	1740	Proforma Invoice.exe	68
PID 1740 wrote to memory of 1988	1740	Proforma Invoice.exe	68
PID 1740 wrote to memory of 1988	1740	Proforma Invoice.exe	68
PID 1740 wrote to memory of 4088	1740	Proforma Invoice.exe	69
PID 1740 wrote to memory of 4088	1740	Proforma Invoice.exe	69
PID 1740 wrote to memory of 4088	1740	Proforma Invoice.exe	69

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

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-1-5-21-1231583446-2617009595-2137880041-1000\Software\Microsoft\Windows\CurrentVersion\Run\DsWhv = "C:\\Users\\Admin\\AppData\\Roaming\\DsWhv\\DsWhv.exe"	Proforma Invoice.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
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\Proforma Invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Proforma Invoice.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1740
- C:\Windows\SysWOW64\notepad.exe
  "C:\Windows\system32\notepad.exe"
  2⤵
  - Drops startup file
  PID:1988
- C:\Users\Admin\AppData\Local\Temp\Proforma Invoice.exe
  "C:\Users\Admin\AppData\Local\Temp\Proforma Invoice.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Adds Run entry to start application
  PID:4088

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/4088-1-0x0000000000400000-0x00000000004A4000-memory.dmp

Filesize
656KB

Download
memory/4088-3-0x0000000000400000-0x00000000004A4000-memory.dmp

Filesize
656KB

Download
memory/4088-4-0x0000000000400000-0x00000000004A4000-memory.dmp

Filesize
656KB

Download
memory/4088-5-0x00000000021D0000-0x000000000221C000-memory.dmp

Filesize
304KB

Download
memory/4088-6-0x0000000002262000-0x0000000002263000-memory.dmp

Filesize
4KB

Download

Analysis

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