agenttesla | 3058943ae31559238e25e88e6dfbba109ba0848c129a9742795797337f27bf3e

General

Target

PO_5063588533982668888839393665187368.exe
Size

1.4MB
MD5

07ebe75a608e5afd94a06bc865f6eb71
SHA1

6501f07c81528541bf3efd4a103d3a19d1ddbcb4
SHA256

f5e0b21161bfe9a8f8805186f8124f81e12c5430b82efdc1743b0ed343a5a4dd
SHA512

7f68c2ecdabaaa61a8a64c5a226e00161e5be35e8ca3a82453fb8e89146342e3ce2b410c222dc20a7bf0bf00b41008ab9faa689ebea4d659b5b1337205409336
SSDEEP

24576:vuMVMzHC/rDrAoD48AT9Ndd8loPwtJhUADiiB2Lln/bsOgAdjv0LZiV:vuM0HC/r11yNdCGPsPUGIngABvKU

Score

10^/10

agenttesla guloader discovery downloader keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.carbognin.it
Port:
21
Username:
[email protected]
Password:
59Cif8wZUH#X

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Agenttesla family
agenttesla
Guloader family
guloader
Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader

Loads dropped DLL 1 IoCs

pid	Process
4048	PO_5063588533982668888839393665187368.exe

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

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
1624	PO_5063588533982668888839393665187368.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4048	PO_5063588533982668888839393665187368.exe
1624	PO_5063588533982668888839393665187368.exe

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

System Information Discovery
T1082

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	PO_5063588533982668888839393665187368.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO_5063588533982668888839393665187368.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1624	PO_5063588533982668888839393665187368.exe
1624	PO_5063588533982668888839393665187368.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4048	PO_5063588533982668888839393665187368.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1624	PO_5063588533982668888839393665187368.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4048 wrote to memory of 1624	4048	PO_5063588533982668888839393665187368.exe	96
PID 4048 wrote to memory of 1624	4048	PO_5063588533982668888839393665187368.exe	96
PID 4048 wrote to memory of 1624	4048	PO_5063588533982668888839393665187368.exe	96
PID 4048 wrote to memory of 1624	4048	PO_5063588533982668888839393665187368.exe	96

C:\Users\Admin\AppData\Local\Temp\PO_5063588533982668888839393665187368.exe
"C:\Users\Admin\AppData\Local\Temp\PO_5063588533982668888839393665187368.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4048
- C:\Users\Admin\AppData\Local\Temp\PO_5063588533982668888839393665187368.exe
  "C:\Users\Admin\AppData\Local\Temp\PO_5063588533982668888839393665187368.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1624

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 Information Discovery

1

T1082

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\nst764B.tmp\System.dll

Filesize
12KB

MD5
12b140583e3273ee1f65016becea58c4

SHA1
92df24d11797fefd2e1f8d29be9dfd67c56c1ada

SHA256
014f1dfeb842cf7265a3644bc6903c592abe9049bfc7396829172d3d72c4d042

SHA512
49ffdfa1941361430b6acb3555fd3aa05e4120f28cbdf7ceaa2af5937d0b8cccd84471cf63f06f97cf203b4aa20f226bdad082e9421b8e6b62ab6e1e9fc1e68a

Download Submit
memory/1624-36-0x0000000072B3E000-0x0000000072B3F000-memory.dmp

Filesize
4KB

Download
memory/1624-39-0x0000000038AF0000-0x0000000038B56000-memory.dmp

Filesize
408KB

Download
memory/1624-46-0x0000000072B30000-0x00000000732E0000-memory.dmp

Filesize
7.7MB

Download
memory/1624-26-0x00000000016B0000-0x0000000005863000-memory.dmp

Filesize
65.7MB

Download
memory/1624-28-0x0000000077CC8000-0x0000000077CC9000-memory.dmp

Filesize
4KB

Download
memory/1624-27-0x0000000000450000-0x00000000016A4000-memory.dmp

Filesize
18.3MB

Download
memory/1624-29-0x0000000077CE5000-0x0000000077CE6000-memory.dmp

Filesize
4KB

Download
memory/1624-33-0x0000000000450000-0x00000000016A4000-memory.dmp

Filesize
18.3MB

Download
memory/1624-45-0x0000000072B3E000-0x0000000072B3F000-memory.dmp

Filesize
4KB

Download
memory/1624-43-0x0000000039010000-0x000000003901A000-memory.dmp

Filesize
40KB

Download
memory/1624-35-0x00000000016B0000-0x0000000005863000-memory.dmp

Filesize
65.7MB

Download
memory/1624-38-0x0000000038540000-0x0000000038AE4000-memory.dmp

Filesize
5.6MB

Download
memory/1624-37-0x0000000000450000-0x0000000000492000-memory.dmp

Filesize
264KB

Download
memory/1624-34-0x0000000077C41000-0x0000000077D61000-memory.dmp

Filesize
1.1MB

Download
memory/1624-40-0x0000000072B30000-0x00000000732E0000-memory.dmp

Filesize
7.7MB

Download
memory/1624-41-0x0000000038EE0000-0x0000000038F30000-memory.dmp

Filesize
320KB

Download
memory/1624-42-0x0000000038F40000-0x0000000038FD2000-memory.dmp

Filesize
584KB

Download
memory/4048-25-0x0000000074895000-0x0000000074896000-memory.dmp

Filesize
4KB

Download
memory/4048-23-0x0000000077C41000-0x0000000077D61000-memory.dmp

Filesize
1.1MB

Download
memory/4048-24-0x0000000077C41000-0x0000000077D61000-memory.dmp

Filesize
1.1MB

Download

Analysis

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