agenttesla | 9945bf23a859272ab1ed1a68c37a75f0609e1b43030a5fa6ef4d12e7641df825

General

Target

Order#8548.exe
Size

499KB
MD5

9f52af692b997df95786dc14c22b8a44
SHA1

84830cf35779cafa57970943cb5b40070067e9a4
SHA256

b4207b682440113fab88288c35c84e6af33ba52aa5d82d0dcbc339c532672818
SHA512

88536971d76de30034b641bb6a64bfc5758194fbc6654cefa0e2b4195b253136f00cade30f14695c1d6c59f0e72e7cb42f8a4e72608ddb8f0642761be083d257

Score

10^/10

agenttesla collection coreentity keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.kteadubai.com
Port:
587
Username:
[email protected]
Password:
bt3tw9wqh#B

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
behavioral3/memory/1992-56-0x0000000000720000-0x0000000000728000-memory.dmp	coreentity

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral3/memory/1120-61-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral3/memory/1120-62-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral3/memory/1120-63-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral3/memory/1120-64-0x000000000044C8AE-mapping.dmp	family_agenttesla
behavioral3/memory/1120-66-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral3/memory/1120-68-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

ReZer0 packer 1 IoCs

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

rezer0

Processes:

resource	yara_rule
behavioral3/memory/1992-57-0x0000000004A60000-0x0000000004AB8000-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:

Order#8548.exe

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	Order#8548.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Order#8548.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Order#8548.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Order#8548.exe

description pid process target process

PID 1992 set thread context of 1120 1992 Order#8548.exe Order#8548.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Order#8548.exe

pid process

1120 Order#8548.exe
1120 Order#8548.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Order#8548.exe

description pid process

Token: SeDebugPrivilege 1120 Order#8548.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Order#8548.exe

pid process

1120 Order#8548.exe

description	pid	process	target process
PID 1992 set thread context of 1120	1992	Order#8548.exe	Order#8548.exe

pid	process
1120	Order#8548.exe
1120	Order#8548.exe

description	pid	process
Token: SeDebugPrivilege	1120	Order#8548.exe

pid	process
1120	Order#8548.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

Order#8548.exeOrder#8548.exe

description	pid	process	target process
PID 1992 wrote to memory of 1120	1992	Order#8548.exe	Order#8548.exe
PID 1992 wrote to memory of 1120	1992	Order#8548.exe	Order#8548.exe
PID 1992 wrote to memory of 1120	1992	Order#8548.exe	Order#8548.exe
PID 1992 wrote to memory of 1120	1992	Order#8548.exe	Order#8548.exe
PID 1992 wrote to memory of 1120	1992	Order#8548.exe	Order#8548.exe
PID 1992 wrote to memory of 1120	1992	Order#8548.exe	Order#8548.exe
PID 1992 wrote to memory of 1120	1992	Order#8548.exe	Order#8548.exe
PID 1992 wrote to memory of 1120	1992	Order#8548.exe	Order#8548.exe
PID 1992 wrote to memory of 1120	1992	Order#8548.exe	Order#8548.exe
PID 1120 wrote to memory of 364	1120	Order#8548.exe	netsh.exe
PID 1120 wrote to memory of 364	1120	Order#8548.exe	netsh.exe
PID 1120 wrote to memory of 364	1120	Order#8548.exe	netsh.exe
PID 1120 wrote to memory of 364	1120	Order#8548.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

Order#8548.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Order#8548.exe

outlook_win_path 1 IoCs

Processes:

Order#8548.exe

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	Order#8548.exe

C:\Users\Admin\AppData\Local\Temp\Order#8548.exe
"C:\Users\Admin\AppData\Local\Temp\Order#8548.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1992

C:\Users\Admin\AppData\Local\Temp\Order#8548.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1120

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:364

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

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/364-70-0x0000000000000000-mapping.dmp

Download
memory/1120-64-0x000000000044C8AE-mapping.dmp

Download
memory/1120-58-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1120-59-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1120-61-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1120-62-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1120-63-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1120-66-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1120-68-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1992-56-0x0000000000720000-0x0000000000728000-memory.dmp

Filesize
32KB

Download
memory/1992-57-0x0000000004A60000-0x0000000004AB8000-memory.dmp

Filesize
352KB

Download
memory/1992-54-0x0000000000C40000-0x0000000000CC4000-memory.dmp

Filesize
528KB

Download
memory/1992-55-0x00000000768D1000-0x00000000768D3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads