agenttesla | 5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6 | Triage

Analysis

max time kernel
133s
max time network
124s
platform
windows10_x64
resource
win10-en-20210920
submitted
22-10-2021 15:37

Sharing

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General

Target

5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe
Size

736KB
MD5

6908cd5efe5473c75c9f2fc4a0b71557
SHA1

4e9bbcaf024a89dba6b9e2df0324b6903bdfa6f0
SHA256

5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6
SHA512

bdfa188b32876f0f1fc0fa842fc964fcadedf024f2c10964e2fc093f2994d953ca7036c70c7d484c767a8d0a278c59ababb1ea851a1021bc7eb52beae5a47487

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.tccinfaes.com
Port:
587
Username:
margaridasantos@tccinfaes.com
Password:
TccBps1427log

Signatures

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

AgentTesla Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1016-124-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1016-125-0x000000000043760E-mapping.dmp	family_agenttesla
behavioral1/memory/1016-131-0x00000000052F0000-0x00000000057EE000-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

Email Collection

Processes:

5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe

description	pid	process	target process
PID 2612 set thread context of 1016	2612	5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe	5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe

pid	process
1016	5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe
1016	5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe

description pid process

Token: SeDebugPrivilege 1016 5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe

description	pid	process	target process
PID 2612 wrote to memory of 1016	2612	5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe	5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe
PID 2612 wrote to memory of 1016	2612	5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe	5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe
PID 2612 wrote to memory of 1016	2612	5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe	5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe
PID 2612 wrote to memory of 1016	2612	5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe	5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe
PID 2612 wrote to memory of 1016	2612	5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe	5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe
PID 2612 wrote to memory of 1016	2612	5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe	5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe
PID 2612 wrote to memory of 1016	2612	5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe	5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe
PID 2612 wrote to memory of 1016	2612	5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe	5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe

outlook_office_path 1 IoCs

Processes:

5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe

outlook_win_path 1 IoCs

Processes:

5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe

C:\Users\Admin\AppData\Local\Temp\5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe
"C:\Users\Admin\AppData\Local\Temp\5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2612

C:\Users\Admin\AppData\Local\Temp\5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe
"C:\Users\Admin\AppData\Local\Temp\5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1016

Network

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

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\5db2f2a9d86b6af21d70f614d0d918f22febf3ec5915e05d83b1fa791e4917d6.exe.log
MD5
0c2899d7c6746f42d5bbe088c777f94c

SHA1
622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

SHA256
5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

SHA512
ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

Download Submit
memory/1016-124-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1016-133-0x0000000006070000-0x0000000006071000-memory.dmp

Filesize
4KB

Download
memory/1016-132-0x0000000005FE0000-0x0000000005FE1000-memory.dmp

Filesize
4KB

Download
memory/1016-131-0x00000000052F0000-0x00000000057EE000-memory.dmp

Filesize
5.0MB

Download
memory/1016-125-0x000000000043760E-mapping.dmp

Download
memory/2612-119-0x0000000007AB0000-0x0000000007FAE000-memory.dmp

Filesize
5.0MB

Download
memory/2612-123-0x000000000A2B0000-0x000000000A308000-memory.dmp

Filesize
352KB

Download
memory/2612-122-0x000000000A210000-0x000000000A211000-memory.dmp

Filesize
4KB

Download
memory/2612-121-0x0000000007D50000-0x0000000007D57000-memory.dmp

Filesize
28KB

Download
memory/2612-120-0x00000000056D0000-0x00000000056D1000-memory.dmp

Filesize
4KB

Download
memory/2612-115-0x0000000000C90000-0x0000000000C91000-memory.dmp

Filesize
4KB

Download
memory/2612-118-0x0000000007AB0000-0x0000000007AB1000-memory.dmp

Filesize
4KB

Download
memory/2612-117-0x0000000007FB0000-0x0000000007FB1000-memory.dmp

Filesize
4KB

Download