agenttesla | b87109f4ac9d75b339c8fa1a08ac67db70d386eb73e95f88c47596bf3d94f7ea

General

Target

RICEVUTA DI PAGAMENTO.exe
Size

1.3MB
MD5

f8918c093f62e7df3a88f3c55e5c62da
SHA1

5ece572d3d72558a1c044251cd521dd5e369a727
SHA256

356fd7a50b9d0c286d7251ede5b8e8ed9ec8c51a4480a88d5e054e52d352fec3
SHA512

462bfee0c1158847545a696e0354c4ca581f09ba822be2fe148e324fc21e5d04eac231de92674e30e962244d9dbf2ee2b1bb98ff8bcc095b109995ce54045298
SSDEEP

24576:iU9aY1wLhuxBr8sDzsKc4nVjhNW3CknC7/c2nEwRTPlJpDOPCBeuOHHTDf7:iNY1tpzsKc4nthNW3YU0E6DpDOPCBZOj

Score

10^/10

agenttesla guloader discovery downloader keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.concaribe.com
Port:
21
Username:
[email protected]
Password:
ro}UWgz#!38E

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
1532	RICEVUTA DI PAGAMENTO.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

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
11	api.ipify.org
12	api.ipify.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
3208	RICEVUTA DI PAGAMENTO.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1532	RICEVUTA DI PAGAMENTO.exe
3208	RICEVUTA DI PAGAMENTO.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\resources\mesanmast\lindre.sum	RICEVUTA DI PAGAMENTO.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	RICEVUTA DI PAGAMENTO.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RICEVUTA DI PAGAMENTO.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3208	RICEVUTA DI PAGAMENTO.exe
3208	RICEVUTA DI PAGAMENTO.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1532	RICEVUTA DI PAGAMENTO.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3208	RICEVUTA DI PAGAMENTO.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1532 wrote to memory of 3208	1532	RICEVUTA DI PAGAMENTO.exe	86
PID 1532 wrote to memory of 3208	1532	RICEVUTA DI PAGAMENTO.exe	86
PID 1532 wrote to memory of 3208	1532	RICEVUTA DI PAGAMENTO.exe	86
PID 1532 wrote to memory of 3208	1532	RICEVUTA DI PAGAMENTO.exe	86

C:\Users\Admin\AppData\Local\Temp\RICEVUTA DI PAGAMENTO.exe
"C:\Users\Admin\AppData\Local\Temp\RICEVUTA DI PAGAMENTO.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1532
- C:\Users\Admin\AppData\Local\Temp\RICEVUTA DI PAGAMENTO.exe
  "C:\Users\Admin\AppData\Local\Temp\RICEVUTA DI PAGAMENTO.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3208

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\nsu8609.tmp\System.dll

Filesize
11KB

MD5
fccff8cb7a1067e23fd2e2b63971a8e1

SHA1
30e2a9e137c1223a78a0f7b0bf96a1c361976d91

SHA256
6fcea34c8666b06368379c6c402b5321202c11b00889401c743fb96c516c679e

SHA512
f4335e84e6f8d70e462a22f1c93d2998673a7616c868177cac3e8784a3be1d7d0bb96f2583fa0ed82f4f2b6b8f5d9b33521c279a42e055d80a94b4f3f1791e0c

Download Submit
memory/1532-21-0x0000000003220000-0x000000000472D000-memory.dmp

Filesize
21.1MB

Download
memory/1532-22-0x0000000077461000-0x0000000077581000-memory.dmp

Filesize
1.1MB

Download
memory/1532-23-0x0000000074154000-0x0000000074155000-memory.dmp

Filesize
4KB

Download
memory/1532-25-0x0000000003220000-0x000000000472D000-memory.dmp

Filesize
21.1MB

Download
memory/3208-26-0x00000000016B0000-0x0000000002BBD000-memory.dmp

Filesize
21.1MB

Download
memory/3208-27-0x00000000774E8000-0x00000000774E9000-memory.dmp

Filesize
4KB

Download
memory/3208-28-0x0000000077505000-0x0000000077506000-memory.dmp

Filesize
4KB

Download
memory/3208-29-0x0000000000450000-0x00000000016A4000-memory.dmp

Filesize
18.3MB

Download
memory/3208-30-0x00000000016B0000-0x0000000002BBD000-memory.dmp

Filesize
21.1MB

Download
memory/3208-31-0x0000000000450000-0x0000000000492000-memory.dmp

Filesize
264KB

Download
memory/3208-32-0x00000000016B0000-0x0000000002BBD000-memory.dmp

Filesize
21.1MB

Download
memory/3208-33-0x0000000035570000-0x0000000035B14000-memory.dmp

Filesize
5.6MB

Download
memory/3208-34-0x0000000035C80000-0x0000000035CE6000-memory.dmp

Filesize
408KB

Download
memory/3208-36-0x0000000036640000-0x0000000036690000-memory.dmp

Filesize
320KB

Download
memory/3208-37-0x0000000036690000-0x0000000036722000-memory.dmp

Filesize
584KB

Download
memory/3208-38-0x0000000036760000-0x000000003676A000-memory.dmp

Filesize
40KB

Download
memory/3208-39-0x0000000077461000-0x0000000077581000-memory.dmp

Filesize
1.1MB

Download

Analysis

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