agenttesla | db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6 | Triage

Analysis

max time kernel
143s
max time network
46s
platform
windows7_x64
resource
win7-20220414-en
submitted
24-05-2022 21:26

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General

Target

db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe
Size

381KB
MD5

cacf618c8c192f885722c4c4386da202
SHA1

08617dfd366a53afc487f48e447434d2a0cce058
SHA256

db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6
SHA512

a817cf4b9b4927bdd190aff7cece2a41de9eeafc6814f72d9e96c39340d0c27d9f64de4c94259c34e780897702701bd032aa82e98ba6f3b340dcea690247bea7

Score

10^/10

agenttesla collection keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
tonyrikardo@yandex.com
Password:
akachukwu123@

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/960-61-0x0000000000400000-0x000000000044A000-memory.dmp	family_agenttesla
behavioral1/memory/960-62-0x0000000000400000-0x000000000044A000-memory.dmp	family_agenttesla
behavioral1/memory/960-64-0x00000000004455BE-mapping.dmp	family_agenttesla
behavioral1/memory/960-63-0x0000000000400000-0x000000000044A000-memory.dmp	family_agenttesla
behavioral1/memory/960-66-0x0000000000400000-0x000000000044A000-memory.dmp	family_agenttesla
behavioral1/memory/960-68-0x0000000000400000-0x000000000044A000-memory.dmp	family_agenttesla

ReZer0 packer 1 IoCs

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

Processes:

resource	yara_rule
behavioral1/memory/1096-57-0x0000000004350000-0x00000000043A2000-memory.dmp	rezer0

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

Email Collection

Processes:

db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.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	db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe

description	pid	process	target process
PID 1096 set thread context of 960	1096	db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe	db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe

pid	process
960	db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe
960	db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe

description pid process

Token: SeDebugPrivilege 960 db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe

description	pid	process	target process
PID 1096 wrote to memory of 960	1096	db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe	db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe
PID 1096 wrote to memory of 960	1096	db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe	db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe
PID 1096 wrote to memory of 960	1096	db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe	db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe
PID 1096 wrote to memory of 960	1096	db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe	db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe
PID 1096 wrote to memory of 960	1096	db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe	db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe
PID 1096 wrote to memory of 960	1096	db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe	db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe
PID 1096 wrote to memory of 960	1096	db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe	db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe
PID 1096 wrote to memory of 960	1096	db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe	db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe
PID 1096 wrote to memory of 960	1096	db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe	db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe

outlook_office_path 1 IoCs

Processes:

db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.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	db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe

outlook_win_path 1 IoCs

Processes:

db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.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	db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe

C:\Users\Admin\AppData\Local\Temp\db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe
"C:\Users\Admin\AppData\Local\Temp\db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1096

C:\Users\Admin\AppData\Local\Temp\db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe
"C:\Users\Admin\AppData\Local\Temp\db2cc7258075d37820ed3344f5dcc4784be1ac8cc33a6d02627ea3dccf06b5f6.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:960

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/960-58-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/960-59-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/960-61-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/960-62-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/960-64-0x00000000004455BE-mapping.dmp

Download
memory/960-63-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/960-66-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/960-68-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/1096-54-0x00000000002D0000-0x0000000000336000-memory.dmp

Filesize
408KB

Download
memory/1096-55-0x0000000075FB1000-0x0000000075FB3000-memory.dmp

Filesize
8KB

Download
memory/1096-56-0x0000000000490000-0x0000000000498000-memory.dmp

Filesize
32KB

Download
memory/1096-57-0x0000000004350000-0x00000000043A2000-memory.dmp

Filesize
328KB

Download