agenttesla | 2c576b998e6702ea876cb32e8ff457709d292f7d139f1a737f26f69f29e2259a

General

Target

RICEVUTA DI PAGAMENTO.exe
Size

674KB
MD5

ef5b44f40df78dc49c1180b671a7d089
SHA1

0707aa3c6ae1abc38d08618132453e89f1b54c5a
SHA256

687b2c10e61814fa7b2b3ae17c8a2f04fef5b3ddbfd12bba5948a7377b26afde
SHA512

2919e804a8f92c05c3375e142e3657249acc2f267339a61ceaed791b33ed758c1c1563afd420c43856c00c4437dddfd898f4af04fe65cddb67cc774c742dc2e8
SSDEEP

12288:GFgYxnPNPMRLsNcVRa+zXQOV51P9hg2RATP:aVSRLsNp2Tz2

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
3408	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
3	api.ipify.org
4	api.ipify.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
4584	RICEVUTA DI PAGAMENTO.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
3408	RICEVUTA DI PAGAMENTO.exe
4584	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
4584	RICEVUTA DI PAGAMENTO.exe
4584	RICEVUTA DI PAGAMENTO.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3408	RICEVUTA DI PAGAMENTO.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4584	RICEVUTA DI PAGAMENTO.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3408 wrote to memory of 4584	3408	RICEVUTA DI PAGAMENTO.exe	80
PID 3408 wrote to memory of 4584	3408	RICEVUTA DI PAGAMENTO.exe	80
PID 3408 wrote to memory of 4584	3408	RICEVUTA DI PAGAMENTO.exe	80
PID 3408 wrote to memory of 4584	3408	RICEVUTA DI PAGAMENTO.exe	80

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
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3408
- 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:4584

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\nsx7225.tmp\System.dll

Filesize
11KB

MD5
0063d48afe5a0cdc02833145667b6641

SHA1
e7eb614805d183ecb1127c62decb1a6be1b4f7a8

SHA256
ac9dfe3b35ea4b8932536ed7406c29a432976b685cc5322f94ef93df920fede7

SHA512
71cbbcaeb345e09306e368717ea0503fe8df485be2e95200febc61bcd8ba74fb4211cd263c232f148c0123f6c6f2e3fd4ea20bdecc4070f5208c35c6920240f0

Download Submit
memory/3408-24-0x0000000003240000-0x0000000005B9D000-memory.dmp

Filesize
41.4MB

Download
memory/3408-25-0x0000000077D71000-0x0000000077E91000-memory.dmp

Filesize
1.1MB

Download
memory/3408-26-0x0000000074A64000-0x0000000074A65000-memory.dmp

Filesize
4KB

Download
memory/3408-28-0x0000000003240000-0x0000000005B9D000-memory.dmp

Filesize
41.4MB

Download
memory/4584-27-0x00000000016D0000-0x000000000402D000-memory.dmp

Filesize
41.4MB

Download
memory/4584-29-0x00000000016D0000-0x000000000402D000-memory.dmp

Filesize
41.4MB

Download
memory/4584-30-0x0000000000470000-0x00000000016C4000-memory.dmp

Filesize
18.3MB

Download
memory/4584-31-0x0000000000470000-0x00000000016C4000-memory.dmp

Filesize
18.3MB

Download
memory/4584-32-0x00000000016D0000-0x000000000402D000-memory.dmp

Filesize
41.4MB

Download
memory/4584-33-0x0000000000470000-0x00000000004B2000-memory.dmp

Filesize
264KB

Download
memory/4584-34-0x0000000036B80000-0x0000000037124000-memory.dmp

Filesize
5.6MB

Download
memory/4584-35-0x0000000036AA0000-0x0000000036B06000-memory.dmp

Filesize
408KB

Download
memory/4584-36-0x0000000037AB0000-0x0000000037B00000-memory.dmp

Filesize
320KB

Download
memory/4584-37-0x0000000037B00000-0x0000000037B92000-memory.dmp

Filesize
584KB

Download
memory/4584-38-0x0000000037BD0000-0x0000000037BDA000-memory.dmp

Filesize
40KB

Download

Analysis

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