agenttesla | 43d66102096b171d791582ce4ad7881c68946594a91fa9c4931e9fae6b70e806

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
31-03-2023 11:05

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General

Target

tmp.exe
Size

455KB
MD5

e47210accd809054f50bb4f1c765004e
SHA1

a37d125ebe7641fd00addf211083cafe08335f06
SHA256

43d66102096b171d791582ce4ad7881c68946594a91fa9c4931e9fae6b70e806
SHA512

78a402c688b230fb5fdcdb41de13d5e4b4712be0bc55b71d2275cb6072c0734a3aef172d72088ade88d308b6337c1b928ebea5cfe8079b43dcb0e45775fc0252
SSDEEP

12288:ZjXTfWDjZOeitDtLlP547QTbIbjGV3u3Cj3YE2:J7WfZOfllIbjIeScD

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

https://api.telegram.org/bot2134979594:AAFk4QkrlHlt2a-q-EhIoHZBbzxSH0QxiBI/

Signatures

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

jsc.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jsc.exe
Key opened	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jsc.exe
Key opened	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jsc.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.

Processes:

flow ioc

20 api.ipify.org
19 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

tmp.exe

description pid process target process

PID 432 set thread context of 3340 432 tmp.exe jsc.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

jsc.exe

description pid process

Token: SeDebugPrivilege 3340 jsc.exe

flow	ioc
20	api.ipify.org
19	api.ipify.org

description	pid	process	target process
PID 432 set thread context of 3340	432	tmp.exe	jsc.exe

description	pid	process
Token: SeDebugPrivilege	3340	jsc.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

tmp.exe

description	pid	process	target process
PID 432 wrote to memory of 3340	432	tmp.exe	jsc.exe
PID 432 wrote to memory of 3340	432	tmp.exe	jsc.exe
PID 432 wrote to memory of 3340	432	tmp.exe	jsc.exe
PID 432 wrote to memory of 3340	432	tmp.exe	jsc.exe
PID 432 wrote to memory of 3340	432	tmp.exe	jsc.exe
PID 432 wrote to memory of 3340	432	tmp.exe	jsc.exe
PID 432 wrote to memory of 3340	432	tmp.exe	jsc.exe
PID 432 wrote to memory of 3340	432	tmp.exe	jsc.exe

outlook_office_path 1 IoCs

Processes:

jsc.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jsc.exe

outlook_win_path 1 IoCs

Processes:

jsc.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jsc.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:432

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\jsc.exe
"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\jsc.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3340

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/432-133-0x000001737E4B0000-0x000001737E526000-memory.dmp

Filesize
472KB

Download
memory/432-134-0x000001731A610000-0x000001731A620000-memory.dmp

Filesize
64KB

Download
memory/3340-135-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/3340-137-0x00000000059A0000-0x0000000005F44000-memory.dmp

Filesize
5.6MB

Download
memory/3340-138-0x0000000005350000-0x00000000053B6000-memory.dmp

Filesize
408KB

Download
memory/3340-139-0x0000000005540000-0x0000000005550000-memory.dmp

Filesize
64KB

Download
memory/3340-140-0x0000000006F00000-0x0000000006F92000-memory.dmp

Filesize
584KB

Download
memory/3340-141-0x0000000006EE0000-0x0000000006EEA000-memory.dmp

Filesize
40KB

Download
memory/3340-142-0x0000000007140000-0x0000000007190000-memory.dmp

Filesize
320KB

Download
memory/3340-143-0x0000000007360000-0x0000000007522000-memory.dmp

Filesize
1.8MB

Download
memory/3340-144-0x0000000005540000-0x0000000005550000-memory.dmp

Filesize
64KB

Download