agenttesla | fca3ee47989e23b3b32dbc0654e6cd4f20a9fea219871f7ca295890d61fae129

General

Target

fca3ee47989e23b3b32dbc0654e6cd4f20a9fea219871f7ca295890d61fae129.exe
Size

920KB
MD5

567de8c1d9a8518f25e1759e6c3fa0ca
SHA1

0e38ca05d8509247194f2bf19fa52dae10ffbba0
SHA256

fca3ee47989e23b3b32dbc0654e6cd4f20a9fea219871f7ca295890d61fae129
SHA512

76a0e983bdd5a514d4f61901e95772d0c272bf4260b4f938b87d5987ba73c34b62b123d81982f020f3ec5ad3736472be237731f48ebe79ee923f06b52e0ee12f
SSDEEP

24576:zVL5gaDIOPfXBW5FMADx5lfp3/+bnkpWiqmxjNSuYKCtcu:zVL5gaDIQRWsAjb3mnkFxZSu

Score

10^/10

agenttesla collection discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://discord.com/api/webhooks/1075887334303748266/u8Nrxb0SNd0-_hLZmle74zb3s1_g7nazO4AFHWQ-xeAnmWLI8dX4hffXPdxsWEWxdEMM

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fca3ee47989e23b3b32dbc0654e6cd4f20a9fea219871f7ca295890d61fae129.exe
Key opened	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fca3ee47989e23b3b32dbc0654e6cd4f20a9fea219871f7ca295890d61fae129.exe
Key opened	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fca3ee47989e23b3b32dbc0654e6cd4f20a9fea219871f7ca295890d61fae129.exe

Looks up external IP address via web service 2 IoCs

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

flow	ioc
34	api.ipify.org
35	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1892 set thread context of 2552	1892	fca3ee47989e23b3b32dbc0654e6cd4f20a9fea219871f7ca295890d61fae129.exe	98

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	fca3ee47989e23b3b32dbc0654e6cd4f20a9fea219871f7ca295890d61fae129.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fca3ee47989e23b3b32dbc0654e6cd4f20a9fea219871f7ca295890d61fae129.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2552	fca3ee47989e23b3b32dbc0654e6cd4f20a9fea219871f7ca295890d61fae129.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2552	fca3ee47989e23b3b32dbc0654e6cd4f20a9fea219871f7ca295890d61fae129.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1892 wrote to memory of 2552	1892	fca3ee47989e23b3b32dbc0654e6cd4f20a9fea219871f7ca295890d61fae129.exe	98
PID 1892 wrote to memory of 2552	1892	fca3ee47989e23b3b32dbc0654e6cd4f20a9fea219871f7ca295890d61fae129.exe	98
PID 1892 wrote to memory of 2552	1892	fca3ee47989e23b3b32dbc0654e6cd4f20a9fea219871f7ca295890d61fae129.exe	98
PID 1892 wrote to memory of 2552	1892	fca3ee47989e23b3b32dbc0654e6cd4f20a9fea219871f7ca295890d61fae129.exe	98
PID 1892 wrote to memory of 2552	1892	fca3ee47989e23b3b32dbc0654e6cd4f20a9fea219871f7ca295890d61fae129.exe	98
PID 1892 wrote to memory of 2552	1892	fca3ee47989e23b3b32dbc0654e6cd4f20a9fea219871f7ca295890d61fae129.exe	98
PID 1892 wrote to memory of 2552	1892	fca3ee47989e23b3b32dbc0654e6cd4f20a9fea219871f7ca295890d61fae129.exe	98
PID 1892 wrote to memory of 2552	1892	fca3ee47989e23b3b32dbc0654e6cd4f20a9fea219871f7ca295890d61fae129.exe	98

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fca3ee47989e23b3b32dbc0654e6cd4f20a9fea219871f7ca295890d61fae129.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fca3ee47989e23b3b32dbc0654e6cd4f20a9fea219871f7ca295890d61fae129.exe

C:\Users\Admin\AppData\Local\Temp\fca3ee47989e23b3b32dbc0654e6cd4f20a9fea219871f7ca295890d61fae129.exe
"C:\Users\Admin\AppData\Local\Temp\fca3ee47989e23b3b32dbc0654e6cd4f20a9fea219871f7ca295890d61fae129.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1892
- C:\Users\Admin\AppData\Local\Temp\fca3ee47989e23b3b32dbc0654e6cd4f20a9fea219871f7ca295890d61fae129.exe
  "C:\Users\Admin\AppData\Local\Temp\fca3ee47989e23b3b32dbc0654e6cd4f20a9fea219871f7ca295890d61fae129.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:2552

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

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\fca3ee47989e23b3b32dbc0654e6cd4f20a9fea219871f7ca295890d61fae129.exe.log

Filesize
1KB

MD5
9c8ef6dc66746f36312b5ad4f1ad6ca0

SHA1
6e8b71e07bbeacf20e8174dd8934dcd62bf84345

SHA256
1e1581ebd843ceb83d75cbc88961cc855f663ec83ca71e48eb62f40439f54799

SHA512
255a9ea3f6c5faff3357b51399e017e3027c50aa8cde79ba796fb8632d0fa44c6228ee892f56834c0f8e5f83032a2982c3e625f03839fbf63071290c0c9b2451

Download Submit
memory/1892-10-0x0000000007970000-0x0000000007A0C000-memory.dmp

Filesize
624KB

Download
memory/1892-5-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

Filesize
4KB

Download
memory/1892-11-0x00000000075A0000-0x00000000075D2000-memory.dmp

Filesize
200KB

Download
memory/1892-1-0x0000000000020000-0x000000000010C000-memory.dmp

Filesize
944KB

Download
memory/1892-16-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/1892-6-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/1892-7-0x0000000007120000-0x000000000712C000-memory.dmp

Filesize
48KB

Download
memory/1892-8-0x0000000007810000-0x00000000078CA000-memory.dmp

Filesize
744KB

Download
memory/1892-9-0x0000000007E80000-0x0000000008424000-memory.dmp

Filesize
5.6MB

Download
memory/1892-0-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

Filesize
4KB

Download
memory/1892-3-0x00000000024A0000-0x00000000024B6000-memory.dmp

Filesize
88KB

Download
memory/1892-2-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/1892-4-0x0000000007140000-0x00000000071D2000-memory.dmp

Filesize
584KB

Download
memory/2552-12-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2552-15-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2552-17-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2552-18-0x0000000005730000-0x0000000005796000-memory.dmp

Filesize
408KB

Download
memory/2552-19-0x0000000007370000-0x000000000737A000-memory.dmp

Filesize
40KB

Download
memory/2552-20-0x00000000073E0000-0x0000000007430000-memory.dmp

Filesize
320KB

Download
memory/2552-21-0x00000000076B0000-0x0000000007872000-memory.dmp

Filesize
1.8MB

Download
memory/2552-22-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download

Analysis

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