agenttesla | 7f42d837b15c2f7ef2e2fb062381770bd7913f7f4621fb9bec7bfffbb410b5e3

General

Target

invoice.exe
Size

790KB
MD5

17a7310d17d72b264cbb9f216ebaedc5
SHA1

2de56901f9898e71135327620c2618c1fbff6c1c
SHA256

7f42d837b15c2f7ef2e2fb062381770bd7913f7f4621fb9bec7bfffbb410b5e3
SHA512

73c846fee6dce722d423d854d618c5850e278eadf5b853f7805a512d8a30fe0e4107d4a8f069aff1939306ff3ce259d6643a3e5f1c956fb3c6fb6873e7794622

Score

10^/10

agenttesla keylogger spyware stealer trojan upx

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.serviciocitroen.com
Port:
587
Username:
[email protected]
Password:
FXO]%cdB8gx-

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

AgentTesla Payload 3 IoCs

resource	yara_rule
behavioral1/memory/1488-3-0x0000000000400000-0x00000000004A5000-memory.dmp	family_agenttesla
behavioral1/memory/1488-4-0x0000000001C80000-0x0000000001CCC000-memory.dmp	family_agenttesla
behavioral1/memory/1488-6-0x00000000004B0000-0x00000000004F6000-memory.dmp	family_agenttesla

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1488-0-0x0000000000400000-0x00000000004A5000-memory.dmp	upx
behavioral1/memory/1488-2-0x0000000000400000-0x00000000004A5000-memory.dmp	upx
behavioral1/memory/1488-3-0x0000000000400000-0x00000000004A5000-memory.dmp	upx

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

Data from Local System
T1005

Credentials in Files
T1081
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

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1456 set thread context of 1488	1456	invoice.exe	24

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1456	invoice.exe
1488	invoice.exe
1488	invoice.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1456	invoice.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1488	invoice.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1456 wrote to memory of 1488	1456	invoice.exe	24
PID 1456 wrote to memory of 1488	1456	invoice.exe	24
PID 1456 wrote to memory of 1488	1456	invoice.exe	24
PID 1456 wrote to memory of 1488	1456	invoice.exe	24

C:\Users\Admin\AppData\Local\Temp\invoice.exe
"C:\Users\Admin\AppData\Local\Temp\invoice.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1456
- C:\Users\Admin\AppData\Local\Temp\invoice.exe
  "C:\Users\Admin\AppData\Local\Temp\invoice.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1488

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1488-0-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download
memory/1488-2-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download
memory/1488-3-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download
memory/1488-4-0x0000000001C80000-0x0000000001CCC000-memory.dmp

Filesize
304KB

Download
memory/1488-5-0x0000000001DF2000-0x0000000001DF3000-memory.dmp

Filesize
4KB

Download
memory/1488-6-0x00000000004B0000-0x00000000004F6000-memory.dmp

Filesize
280KB

Download

Analysis

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