agenttesla | da0db468513004794ec95a01cc97e5bf4d76a277b7ab7fcabb47ceff6498910e

General

Target

QUOTATIO.exe
Size

502KB
MD5

6090c40a1022d3265f2dc7867cd533bb
SHA1

bc5eabceb7a959345421c536219fdbf23602e4e2
SHA256

bdf6444b7ff7cd5866894e61e0ccd96d61d8af22c0043df49d2adcf3659fa853
SHA512

b5d4bc23a7840e03eeffe1f6e5c93c81e42342bb839064607050d8f43d44aae6e51c2200a4e41cc387603ac461157341f66245808a43065090c23902d42aa08a

Score

10^/10

agenttesla collection coreentity keylogger rezer0 spyware stealer trojan

Malware Config

Signatures

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

CoreEntity .NET Packer 1 IoCs

A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

coreentity

Processes:

resource	yara_rule
behavioral1/memory/1128-56-0x0000000000480000-0x0000000000488000-memory.dmp	coreentity

AgentTesla Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1128-60-0x00000000050B0000-0x0000000005102000-memory.dmp	family_agenttesla

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1128-57-0x0000000001FC0000-0x0000000002018000-memory.dmp	rezer0

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:

QUOTATIO.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	QUOTATIO.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	QUOTATIO.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	QUOTATIO.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

1540 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

QUOTATIO.exe

pid process

1128 QUOTATIO.exe
1128 QUOTATIO.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

QUOTATIO.exe

description pid process

Token: SeDebugPrivilege 1128 QUOTATIO.exe

pid	process
1540	schtasks.exe

pid	process
1128	QUOTATIO.exe
1128	QUOTATIO.exe

description	pid	process
Token: SeDebugPrivilege	1128	QUOTATIO.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

QUOTATIO.exe

description	pid	process	target process
PID 1128 wrote to memory of 1540	1128	QUOTATIO.exe	schtasks.exe
PID 1128 wrote to memory of 1540	1128	QUOTATIO.exe	schtasks.exe
PID 1128 wrote to memory of 1540	1128	QUOTATIO.exe	schtasks.exe
PID 1128 wrote to memory of 1540	1128	QUOTATIO.exe	schtasks.exe
PID 1128 wrote to memory of 1140	1128	QUOTATIO.exe	netsh.exe
PID 1128 wrote to memory of 1140	1128	QUOTATIO.exe	netsh.exe
PID 1128 wrote to memory of 1140	1128	QUOTATIO.exe	netsh.exe
PID 1128 wrote to memory of 1140	1128	QUOTATIO.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

QUOTATIO.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	QUOTATIO.exe

outlook_win_path 1 IoCs

Processes:

QUOTATIO.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	QUOTATIO.exe

C:\Users\Admin\AppData\Local\Temp\QUOTATIO.exe
"C:\Users\Admin\AppData\Local\Temp\QUOTATIO.exe"
1⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1128

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bfpnXuLs" /XML "C:\Users\Admin\AppData\Local\Temp\tmp85D3.tmp"
2⤵
- Creates scheduled task(s)
PID:1540

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
2⤵
PID:1140

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\tmp85D3.tmp
Filesize
1KB

MD5
a29d5827f0c255248267693a1b62e050

SHA1
3666c290f64e5b50f3519651915d5578a8e9970b

SHA256
ead5404cfd8db3b72d196f8663ed1d8725660c02bdb1eb1dc8453309e125206c

SHA512
284cee28b3beb98cbe46cb505a3b3ad1720e5e04510d770b22e9d0c3313a3c57780b645a3f154f0e5d170ee74e41ae5979d92fd7d0ecbd8ab2eb763343ce2a85

Download Submit
memory/1128-54-0x0000000000080000-0x0000000000104000-memory.dmp

Filesize
528KB

Download
memory/1128-55-0x0000000075B71000-0x0000000075B73000-memory.dmp

Filesize
8KB

Download
memory/1128-56-0x0000000000480000-0x0000000000488000-memory.dmp

Filesize
32KB

Download
memory/1128-57-0x0000000001FC0000-0x0000000002018000-memory.dmp

Filesize
352KB

Download
memory/1128-60-0x00000000050B0000-0x0000000005102000-memory.dmp

Filesize
328KB

Download
memory/1140-61-0x0000000000000000-mapping.dmp

Download
memory/1540-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads