agenttesla | 91fee98b5957d145f144b61107ea0283fc3e02eb7e19b432e868ee45ffdc528e

General

Target

91fee98b5957d145f144b61107ea0283fc3e02eb7e19b432e868ee45ffdc528e.exe
Size

288KB
MD5

10454890a3d7c7c0b7ec0bf7018141e4
SHA1

167ab9a5a9e0c56689f73d894a397b9c176701df
SHA256

91fee98b5957d145f144b61107ea0283fc3e02eb7e19b432e868ee45ffdc528e
SHA512

20518fd44aff080fddac3a508bcc3b29336ea87c868bd0faf639726b36479de4562ec639e425dbe06234ba5b4629da84b37228b199f8497a7777d36638f77e04
SSDEEP

6144:DT9nXr8bxYfMPcy4OmBag1+pF0lsmxRQQc+gpvEUkxNl:XNQb2fMPSOCwpCFRj0p8UkxNl

Score

10^/10

agenttesla discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.antoniomayol.com:21
Port:
21
Username:
[email protected]
Password:
cMhKDQUk1{;%

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 1 IoCs

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

flow	ioc
11	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1284 set thread context of 3212	1284	91fee98b5957d145f144b61107ea0283fc3e02eb7e19b432e868ee45ffdc528e.exe	83

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	91fee98b5957d145f144b61107ea0283fc3e02eb7e19b432e868ee45ffdc528e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3212	RegAsm.exe
3212	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3212	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1284 wrote to memory of 3212	1284	91fee98b5957d145f144b61107ea0283fc3e02eb7e19b432e868ee45ffdc528e.exe	83
PID 1284 wrote to memory of 3212	1284	91fee98b5957d145f144b61107ea0283fc3e02eb7e19b432e868ee45ffdc528e.exe	83
PID 1284 wrote to memory of 3212	1284	91fee98b5957d145f144b61107ea0283fc3e02eb7e19b432e868ee45ffdc528e.exe	83
PID 1284 wrote to memory of 3212	1284	91fee98b5957d145f144b61107ea0283fc3e02eb7e19b432e868ee45ffdc528e.exe	83
PID 1284 wrote to memory of 3212	1284	91fee98b5957d145f144b61107ea0283fc3e02eb7e19b432e868ee45ffdc528e.exe	83
PID 1284 wrote to memory of 3212	1284	91fee98b5957d145f144b61107ea0283fc3e02eb7e19b432e868ee45ffdc528e.exe	83
PID 1284 wrote to memory of 3212	1284	91fee98b5957d145f144b61107ea0283fc3e02eb7e19b432e868ee45ffdc528e.exe	83
PID 1284 wrote to memory of 3212	1284	91fee98b5957d145f144b61107ea0283fc3e02eb7e19b432e868ee45ffdc528e.exe	83

C:\Users\Admin\AppData\Local\Temp\91fee98b5957d145f144b61107ea0283fc3e02eb7e19b432e868ee45ffdc528e.exe
"C:\Users\Admin\AppData\Local\Temp\91fee98b5957d145f144b61107ea0283fc3e02eb7e19b432e868ee45ffdc528e.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1284
- 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
  PID:3212

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/1284-5-0x00000000751C0000-0x0000000075970000-memory.dmp

Filesize
7.7MB

Download
memory/1284-1-0x0000000000480000-0x00000000004D0000-memory.dmp

Filesize
320KB

Download
memory/1284-2-0x00000000751C0000-0x0000000075970000-memory.dmp

Filesize
7.7MB

Download
memory/1284-0-0x00000000751CE000-0x00000000751CF000-memory.dmp

Filesize
4KB

Download
memory/3212-7-0x0000000005660000-0x0000000005C04000-memory.dmp

Filesize
5.6MB

Download
memory/3212-6-0x00000000751C0000-0x0000000075970000-memory.dmp

Filesize
7.7MB

Download
memory/3212-3-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/3212-8-0x00000000751C0000-0x0000000075970000-memory.dmp

Filesize
7.7MB

Download
memory/3212-9-0x00000000052F0000-0x0000000005356000-memory.dmp

Filesize
408KB

Download
memory/3212-10-0x0000000006460000-0x00000000064B0000-memory.dmp

Filesize
320KB

Download
memory/3212-11-0x0000000006550000-0x00000000065E2000-memory.dmp

Filesize
584KB

Download
memory/3212-12-0x00000000064E0000-0x00000000064EA000-memory.dmp

Filesize
40KB

Download
memory/3212-13-0x00000000751C0000-0x0000000075970000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing