agenttesla | b5207f0926bad09e9bdcdc3616a5c64eab2f15b9f83f795913b3136270352b57

General

Target

Business_Collaboration _Sweden_Inquiry_FOR _TD_1244177_9240526/PCAdministratorDocumentsBusiness_Coll.exe
Size

375KB
MD5

cfbcd854837c534f289e2d2dbe36cecb
SHA1

cb4c05591c9ccb8b770267cc722dbdcb7a47575a
SHA256

57b69ba0d82d045182a8a91fb72d8daafc146d140e517222537e3c4d6933cee1
SHA512

20e752cc77912a26284ebe6d48875dbface377161e96f5e0fb18571fc62d3d23a11d54ac1c2ba2c119a4061a57fd95ac0e96713f9e3867a959081d9694bac0fa
SSDEEP

6144:1WF7Mmuvhgn15rLnDjgNL+g2kVb3LxFDMs/fvi6TFbX/UnFV2y:gF7MvvYrLnD0NL+gJbxF4sPi6Wn5

Score

10^/10

agenttesla discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.aureus-investment.com
Port:
587
Username:
[email protected]
Password:
Hqg8QvUEUagY
Email To:
[email protected]

Signatures

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

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	api.ipify.org
5	api.ipify.org
6	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2620 set thread context of 2140	2620	PCAdministratorDocumentsBusiness_Coll.exe	30

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2140	RegAsm.exe
2140	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2140	RegAsm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2140	RegAsm.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2620 wrote to memory of 2140	2620	PCAdministratorDocumentsBusiness_Coll.exe	30
PID 2620 wrote to memory of 2140	2620	PCAdministratorDocumentsBusiness_Coll.exe	30
PID 2620 wrote to memory of 2140	2620	PCAdministratorDocumentsBusiness_Coll.exe	30
PID 2620 wrote to memory of 2140	2620	PCAdministratorDocumentsBusiness_Coll.exe	30
PID 2620 wrote to memory of 2140	2620	PCAdministratorDocumentsBusiness_Coll.exe	30
PID 2620 wrote to memory of 2140	2620	PCAdministratorDocumentsBusiness_Coll.exe	30
PID 2620 wrote to memory of 2140	2620	PCAdministratorDocumentsBusiness_Coll.exe	30
PID 2620 wrote to memory of 2140	2620	PCAdministratorDocumentsBusiness_Coll.exe	30
PID 2620 wrote to memory of 2140	2620	PCAdministratorDocumentsBusiness_Coll.exe	30
PID 2620 wrote to memory of 2140	2620	PCAdministratorDocumentsBusiness_Coll.exe	30
PID 2620 wrote to memory of 2140	2620	PCAdministratorDocumentsBusiness_Coll.exe	30
PID 2620 wrote to memory of 2140	2620	PCAdministratorDocumentsBusiness_Coll.exe	30

C:\Users\Admin\AppData\Local\Temp\Business_Collaboration _Sweden_Inquiry_FOR _TD_1244177_9240526\PCAdministratorDocumentsBusiness_Coll.exe
"C:\Users\Admin\AppData\Local\Temp\Business_Collaboration _Sweden_Inquiry_FOR _TD_1244177_9240526\PCAdministratorDocumentsBusiness_Coll.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2620
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2140

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

4

T1552

Credentials In Files

3

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

4

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2140-4-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2140-8-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2140-13-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2140-15-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2140-12-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2140-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2140-6-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2140-5-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2620-1-0x00000000009B0000-0x0000000000A14000-memory.dmp

Filesize
400KB

Download
memory/2620-2-0x00000000040F0000-0x0000000004148000-memory.dmp

Filesize
352KB

Download
memory/2620-3-0x0000000074370000-0x0000000074A5E000-memory.dmp

Filesize
6.9MB

Download
memory/2620-16-0x0000000074370000-0x0000000074A5E000-memory.dmp

Filesize
6.9MB

Download
memory/2620-0-0x000000007437E000-0x000000007437F000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing