agenttesla | 8f756a0647aa0f1421ac081da6c16883c38c18008c96f50cd3a3545dd71af02c

General

Target

DRAFT_BL.scr
Size

671KB
MD5

04c8a416d116d67e72ab3913081d58c1
SHA1

47e52d3689f4ecd6be15ca46fcb2f2ef6c0885c3
SHA256

62fcdae1698a3257838b23279dfb2706ed7eb727cbe24e89ab2445565d45de04
SHA512

fb82d5cbbd277e74591e023ed3be0882c527d8224f152154801ac1aeaac6a0171510b88f602fde1c64ac9fd21e0b3682da68966fee0b3acc03694c0322d360ff

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
333link00win

Signatures

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

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1040-61-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla
behavioral1/memory/1040-62-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla
behavioral1/memory/1040-63-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla
behavioral1/memory/1040-64-0x000000000045451E-mapping.dmp	family_agenttesla
behavioral1/memory/1040-66-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla
behavioral1/memory/1040-68-0x0000000000400000-0x000000000045A000-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:

DRAFT_BL.scr

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DRAFT_BL.scr
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DRAFT_BL.scr
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DRAFT_BL.scr

Suspicious use of SetThreadContext 1 IoCs

Processes:

DRAFT_BL.scr

description pid process target process

PID 1964 set thread context of 1040 1964 DRAFT_BL.scr DRAFT_BL.scr
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

1984 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

DRAFT_BL.scr

pid process

1040 DRAFT_BL.scr
1040 DRAFT_BL.scr
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

DRAFT_BL.scr

description pid process

Token: SeDebugPrivilege 1040 DRAFT_BL.scr
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

DRAFT_BL.scr

pid process

1040 DRAFT_BL.scr

description	pid	process	target process
PID 1964 set thread context of 1040	1964	DRAFT_BL.scr	DRAFT_BL.scr

pid	process
1984	schtasks.exe

pid	process
1040	DRAFT_BL.scr
1040	DRAFT_BL.scr

description	pid	process
Token: SeDebugPrivilege	1040	DRAFT_BL.scr

pid	process
1040	DRAFT_BL.scr

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

DRAFT_BL.scr

description	pid	process	target process
PID 1964 wrote to memory of 1984	1964	DRAFT_BL.scr	schtasks.exe
PID 1964 wrote to memory of 1984	1964	DRAFT_BL.scr	schtasks.exe
PID 1964 wrote to memory of 1984	1964	DRAFT_BL.scr	schtasks.exe
PID 1964 wrote to memory of 1984	1964	DRAFT_BL.scr	schtasks.exe
PID 1964 wrote to memory of 1040	1964	DRAFT_BL.scr	DRAFT_BL.scr
PID 1964 wrote to memory of 1040	1964	DRAFT_BL.scr	DRAFT_BL.scr
PID 1964 wrote to memory of 1040	1964	DRAFT_BL.scr	DRAFT_BL.scr
PID 1964 wrote to memory of 1040	1964	DRAFT_BL.scr	DRAFT_BL.scr
PID 1964 wrote to memory of 1040	1964	DRAFT_BL.scr	DRAFT_BL.scr
PID 1964 wrote to memory of 1040	1964	DRAFT_BL.scr	DRAFT_BL.scr
PID 1964 wrote to memory of 1040	1964	DRAFT_BL.scr	DRAFT_BL.scr
PID 1964 wrote to memory of 1040	1964	DRAFT_BL.scr	DRAFT_BL.scr
PID 1964 wrote to memory of 1040	1964	DRAFT_BL.scr	DRAFT_BL.scr

outlook_office_path 1 IoCs

Processes:

DRAFT_BL.scr

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DRAFT_BL.scr

outlook_win_path 1 IoCs

Processes:

DRAFT_BL.scr

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DRAFT_BL.scr

C:\Users\Admin\AppData\Local\Temp\DRAFT_BL.scr
"C:\Users\Admin\AppData\Local\Temp\DRAFT_BL.scr" /S
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1964

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TElxBmUFdTXxW" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEA12.tmp"
2⤵
- Creates scheduled task(s)
PID:1984

C:\Users\Admin\AppData\Local\Temp\DRAFT_BL.scr
"C:\Users\Admin\AppData\Local\Temp\DRAFT_BL.scr"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1040

Network

MITRE ATT&CK Enterprise 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

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpEA12.tmp

Filesize
1KB

MD5
42a394522a436ee44198de7ae9d7c2a6

SHA1
fbe56b43755c22e882317fa267b359cbbc380d96

SHA256
5b8c5c8e9cd370017848a72f8eed482cc8678a5b882eb2504e6e3fd459204e1a

SHA512
9298a78c922cc075c5d9dc24a8e923133f8b80eb4d0c64799bb02e8c9ed953e9076e17504aa948df0b91dfa169ebc5c6a9ea0d0aa19a2917b278e06bc8ad92f2

Download Submit
memory/1040-61-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1040-58-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1040-59-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1040-62-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1040-63-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1040-64-0x000000000045451E-mapping.dmp

Download
memory/1040-66-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1040-68-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1040-70-0x0000000074AE0000-0x000000007508B000-memory.dmp

Filesize
5.7MB

Download
memory/1964-55-0x0000000074B50000-0x00000000750FB000-memory.dmp

Filesize
5.7MB

Download
memory/1964-54-0x0000000075401000-0x0000000075403000-memory.dmp

Filesize
8KB

Download
memory/1984-56-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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