agenttesla | 0529d40fa3862effee179c50182e13cc40c69430faa45c92345e4ff3c70ff728

General

Target

Purchase order.exe
Size

487KB
MD5

6edcb0cc90c7c37a54da443354408fc9
SHA1

79191db9b9eb5a3fcffe4e01e5e78d5efca11acf
SHA256

0529d40fa3862effee179c50182e13cc40c69430faa45c92345e4ff3c70ff728
SHA512

668f80287ce6166a4921e6b9b55336ffb100d4237fd8d6f8d9e7d68320007924977f7bef0323d2b24e0aee083405a21275de95a5b421f63fbaad59a424544050

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.gcsenagency.com
Port:
587
Username:
[email protected]
Password:
supt@3081#

Signatures

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

AgentTesla Payload 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/972-66-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/972-67-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/972-68-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/972-69-0x00000000004375DE-mapping.dmp	family_agenttesla
behavioral1/memory/972-70-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

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
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 stealer

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 stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

Purchase order.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase order.exe
Key opened	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase order.exe
Key opened	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase order.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Purchase order.exe

description pid process target process

PID 1528 set thread context of 972 1528 Purchase order.exe Purchase order.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

828 schtasks.exe

description	pid	process	target process
PID 1528 set thread context of 972	1528	Purchase order.exe	Purchase order.exe

pid	process
828	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

Purchase order.exePurchase order.exe

pid	process
1528	Purchase order.exe
1528	Purchase order.exe
1528	Purchase order.exe
1528	Purchase order.exe
1528	Purchase order.exe
1528	Purchase order.exe
1528	Purchase order.exe
1528	Purchase order.exe
972	Purchase order.exe
972	Purchase order.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Purchase order.exePurchase order.exe

description pid process

Token: SeDebugPrivilege 1528 Purchase order.exe
Token: SeDebugPrivilege 972 Purchase order.exe

description	pid	process
Token: SeDebugPrivilege	1528	Purchase order.exe
Token: SeDebugPrivilege	972	Purchase order.exe

Suspicious use of WriteProcessMemory 29 IoCs

Processes:

Purchase order.exe

description	pid	process	target process
PID 1528 wrote to memory of 828	1528	Purchase order.exe	schtasks.exe
PID 1528 wrote to memory of 828	1528	Purchase order.exe	schtasks.exe
PID 1528 wrote to memory of 828	1528	Purchase order.exe	schtasks.exe
PID 1528 wrote to memory of 828	1528	Purchase order.exe	schtasks.exe
PID 1528 wrote to memory of 1816	1528	Purchase order.exe	Purchase order.exe
PID 1528 wrote to memory of 1816	1528	Purchase order.exe	Purchase order.exe
PID 1528 wrote to memory of 1816	1528	Purchase order.exe	Purchase order.exe
PID 1528 wrote to memory of 1816	1528	Purchase order.exe	Purchase order.exe
PID 1528 wrote to memory of 1216	1528	Purchase order.exe	Purchase order.exe
PID 1528 wrote to memory of 1216	1528	Purchase order.exe	Purchase order.exe
PID 1528 wrote to memory of 1216	1528	Purchase order.exe	Purchase order.exe
PID 1528 wrote to memory of 1216	1528	Purchase order.exe	Purchase order.exe
PID 1528 wrote to memory of 1916	1528	Purchase order.exe	Purchase order.exe
PID 1528 wrote to memory of 1916	1528	Purchase order.exe	Purchase order.exe
PID 1528 wrote to memory of 1916	1528	Purchase order.exe	Purchase order.exe
PID 1528 wrote to memory of 1916	1528	Purchase order.exe	Purchase order.exe
PID 1528 wrote to memory of 620	1528	Purchase order.exe	Purchase order.exe
PID 1528 wrote to memory of 620	1528	Purchase order.exe	Purchase order.exe
PID 1528 wrote to memory of 620	1528	Purchase order.exe	Purchase order.exe
PID 1528 wrote to memory of 620	1528	Purchase order.exe	Purchase order.exe
PID 1528 wrote to memory of 972	1528	Purchase order.exe	Purchase order.exe
PID 1528 wrote to memory of 972	1528	Purchase order.exe	Purchase order.exe
PID 1528 wrote to memory of 972	1528	Purchase order.exe	Purchase order.exe
PID 1528 wrote to memory of 972	1528	Purchase order.exe	Purchase order.exe
PID 1528 wrote to memory of 972	1528	Purchase order.exe	Purchase order.exe
PID 1528 wrote to memory of 972	1528	Purchase order.exe	Purchase order.exe
PID 1528 wrote to memory of 972	1528	Purchase order.exe	Purchase order.exe
PID 1528 wrote to memory of 972	1528	Purchase order.exe	Purchase order.exe
PID 1528 wrote to memory of 972	1528	Purchase order.exe	Purchase order.exe

outlook_office_path 1 IoCs

Processes:

Purchase order.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase order.exe

outlook_win_path 1 IoCs

Processes:

Purchase order.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase order.exe

C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase order.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1528

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ylcXsjxPH" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5522.tmp"
2⤵
- Creates scheduled task(s)
PID:828

C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
"{path}"
2⤵
PID:1816

C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
"{path}"
2⤵
PID:1216

C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
"{path}"
2⤵
PID:1916

C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
"{path}"
2⤵
PID:620

C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:972

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp5522.tmp
MD5
154a5635cd12c71adf25f987af6839b4

SHA1
d689ea98374f1b6d86c02e7887a3f9faf2c92c2d

SHA256
f9637b51cfe2fb80ac4bc0d0580d639173c7f6a09cc72dedced875a7ceea2cb7

SHA512
f8e43e2d255d23c11bf1e36ac1d10854a084283dd79fc6e112e6e5cc80ef6103216409788b693647cedfafd1eac6c7d016bfdaa1c311b66137196069fa8771e7

Download Submit
memory/828-62-0x0000000000000000-mapping.dmp

Download
memory/972-68-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/972-67-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/972-73-0x0000000004961000-0x0000000004962000-memory.dmp

Filesize
4KB

Download
memory/972-72-0x0000000004960000-0x0000000004961000-memory.dmp

Filesize
4KB

Download
memory/972-70-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/972-69-0x00000000004375DE-mapping.dmp

Download
memory/972-64-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/972-65-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/972-66-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1528-58-0x0000000004C90000-0x0000000004C91000-memory.dmp

Filesize
4KB

Download
memory/1528-55-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/1528-57-0x00000000758F1000-0x00000000758F3000-memory.dmp

Filesize
8KB

Download
memory/1528-59-0x00000000002E0000-0x00000000002E5000-memory.dmp

Filesize
20KB

Download
memory/1528-61-0x0000000001FA0000-0x0000000001FD8000-memory.dmp

Filesize
224KB

Download
memory/1528-60-0x0000000005620000-0x000000000569D000-memory.dmp

Filesize
500KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads