agenttesla | 5988d11b83423cfd48d121732e165533443e8a5186bc83ff79659608c358559a

General

Target

vbc.exe
Size

677KB
MD5

3050dad5399374e22b0f70c92c58be91
SHA1

55deeefcb19f2584248deaa0c7a53fc8fbcb55d7
SHA256

5988d11b83423cfd48d121732e165533443e8a5186bc83ff79659608c358559a
SHA512

d7b3c9a600b4d58e70de26ac36b9bce61364045ef75a5fb61706c15e58fbd7e3002897ee69d625a051fc29dc35ecd82a268c7f8c45e2436575fc7c37fb693182
SSDEEP

12288:y2TlEYAcN8pPgOJwCCvfXsJH3LzVkib6RzNOU5qNV+:NzGYOJwCCnXIWDhqNo

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
kV$bSqJ1 daniel
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
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
T1081
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
T1081
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
T1081
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe
Key opened	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe
Key opened	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe

Adds Run key 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-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Windows\CurrentVersion\Run\gcWPrHZ = "C:\\Users\\Admin\\AppData\\Roaming\\gcWPrHZ\\gcWPrHZ.exe"	vbc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2032 set thread context of 1028	2032	vbc.exe	29

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
876	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2032	vbc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2032	vbc.exe
Token: SeDebugPrivilege	1028	vbc.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 876	2032	vbc.exe	27
PID 2032 wrote to memory of 876	2032	vbc.exe	27
PID 2032 wrote to memory of 876	2032	vbc.exe	27
PID 2032 wrote to memory of 876	2032	vbc.exe	27
PID 2032 wrote to memory of 1028	2032	vbc.exe	29
PID 2032 wrote to memory of 1028	2032	vbc.exe	29
PID 2032 wrote to memory of 1028	2032	vbc.exe	29
PID 2032 wrote to memory of 1028	2032	vbc.exe	29
PID 2032 wrote to memory of 1028	2032	vbc.exe	29
PID 2032 wrote to memory of 1028	2032	vbc.exe	29
PID 2032 wrote to memory of 1028	2032	vbc.exe	29
PID 2032 wrote to memory of 1028	2032	vbc.exe	29
PID 2032 wrote to memory of 1028	2032	vbc.exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe

C:\Users\Admin\AppData\Local\Temp\vbc.exe
"C:\Users\Admin\AppData\Local\Temp\vbc.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2032
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XHdAzTo" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD5F6.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:876
- C:\Users\Admin\AppData\Local\Temp\vbc.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1028

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

Scripting

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

Scripting

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpD5F6.tmp

Filesize
1KB

MD5
b0ae48d3f5ba99d079149080a17f4b91

SHA1
e36321ef3bf9417772d766a4a9303976bb2563ac

SHA256
c95e7b97668eecff10d6a1e5d6e0d4ecf5c24267d7e9698538b368a96fe2e98a

SHA512
b37091a7ce7dfb9186621ca11db4558a230b5d9d85547d35f140fd2f9bc979fef9c13689bf89c24106a132f73b074810404f278c07a9d0c6a1865a029210b0a1

Download Submit
memory/1028-68-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1028-67-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1028-75-0x00000000005D0000-0x0000000000610000-memory.dmp

Filesize
256KB

Download
memory/1028-73-0x00000000005D0000-0x0000000000610000-memory.dmp

Filesize
256KB

Download
memory/1028-72-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1028-70-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1028-63-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1028-66-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1028-65-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1028-64-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2032-56-0x0000000000240000-0x000000000024C000-memory.dmp

Filesize
48KB

Download
memory/2032-54-0x00000000009B0000-0x0000000000A60000-memory.dmp

Filesize
704KB

Download
memory/2032-55-0x0000000004990000-0x00000000049D0000-memory.dmp

Filesize
256KB

Download
memory/2032-59-0x00000000021E0000-0x0000000002210000-memory.dmp

Filesize
192KB

Download
memory/2032-58-0x0000000004EF0000-0x0000000004F6C000-memory.dmp

Filesize
496KB

Download
memory/2032-57-0x0000000004990000-0x00000000049D0000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads