agenttesla | b732593ae4c3d533d3ec021f91be15f52dc0f9799fae9ec7fdcddf4155e1c110

General

Target

AITSlip3409748invexe.exe
Size

589KB
MD5

b796e38c482448f701956276a3a0d0e6
SHA1

0d4ef72c89b7794eb5c4e23d636d39a8e38481be
SHA256

b732593ae4c3d533d3ec021f91be15f52dc0f9799fae9ec7fdcddf4155e1c110
SHA512

ef40781de9b7226617451a3bffc870d560054d4f333aa48d452f116439de490353dfb2c3929498c187517639b5ed8fdefe2142b893ff99930f958033bc3fd7bb
SSDEEP

12288:GBlP14nzTX4tPFwVR2+6irp0NAPXy9Al:a514nzMtWVInZ2Fl

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.chestronics.com
Port:
587
Username:
[email protected]
Password:
]DV(A,K%8op6
Email To:
[email protected]

Signatures

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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AITSlip3409748invexe.exe
Key opened	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AITSlip3409748invexe.exe
Key opened	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AITSlip3409748invexe.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
33	api.ipify.org
34	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5080 set thread context of 960	5080	AITSlip3409748invexe.exe	86

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
960	AITSlip3409748invexe.exe
960	AITSlip3409748invexe.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	960	AITSlip3409748invexe.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 5080 wrote to memory of 960	5080	AITSlip3409748invexe.exe	86
PID 5080 wrote to memory of 960	5080	AITSlip3409748invexe.exe	86
PID 5080 wrote to memory of 960	5080	AITSlip3409748invexe.exe	86
PID 5080 wrote to memory of 960	5080	AITSlip3409748invexe.exe	86
PID 5080 wrote to memory of 960	5080	AITSlip3409748invexe.exe	86
PID 5080 wrote to memory of 960	5080	AITSlip3409748invexe.exe	86
PID 5080 wrote to memory of 960	5080	AITSlip3409748invexe.exe	86
PID 5080 wrote to memory of 960	5080	AITSlip3409748invexe.exe	86

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AITSlip3409748invexe.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AITSlip3409748invexe.exe

C:\Users\Admin\AppData\Local\Temp\AITSlip3409748invexe.exe
"C:\Users\Admin\AppData\Local\Temp\AITSlip3409748invexe.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5080
- C:\Users\Admin\AppData\Local\Temp\AITSlip3409748invexe.exe
  "C:\Users\Admin\AppData\Local\Temp\AITSlip3409748invexe.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:960

Network

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

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\AITSlip3409748invexe.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/960-140-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/960-147-0x0000000006950000-0x0000000006B12000-memory.dmp

Filesize
1.8MB

Download
memory/960-146-0x0000000006730000-0x0000000006780000-memory.dmp

Filesize
320KB

Download
memory/960-145-0x0000000005060000-0x0000000005070000-memory.dmp

Filesize
64KB

Download
memory/960-144-0x0000000005060000-0x0000000005070000-memory.dmp

Filesize
64KB

Download
memory/960-143-0x0000000004EE0000-0x0000000004F46000-memory.dmp

Filesize
408KB

Download
memory/5080-136-0x0000000005420000-0x0000000005430000-memory.dmp

Filesize
64KB

Download
memory/5080-139-0x000000000AC90000-0x000000000AD2C000-memory.dmp

Filesize
624KB

Download
memory/5080-138-0x0000000005420000-0x0000000005430000-memory.dmp

Filesize
64KB

Download
memory/5080-137-0x0000000005220000-0x000000000522A000-memory.dmp

Filesize
40KB

Download
memory/5080-133-0x00000000007E0000-0x000000000087A000-memory.dmp

Filesize
616KB

Download
memory/5080-135-0x0000000005240000-0x00000000052D2000-memory.dmp

Filesize
584KB

Download
memory/5080-134-0x0000000005750000-0x0000000005CF4000-memory.dmp

Filesize
5.6MB

Download

Analysis

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