agenttesla | 34d1e9c4e769bbae5f256b28c1e7adbf6366cdf75eb143bcc0ddfbc7b94acca2

General

Target

552460340f9f8a431305b4cb9ec20875.exe
Size

657KB
MD5

552460340f9f8a431305b4cb9ec20875
SHA1

a820d9df54f4fbe736cfb75fb6ea95086137814f
SHA256

34d1e9c4e769bbae5f256b28c1e7adbf6366cdf75eb143bcc0ddfbc7b94acca2
SHA512

8f966d835126c4bdf6abd2402fa4e2b409243f7b2bf85cc34ac37208b34de673b19ab4f3ef624c9e9be05b0d3f35b554a63a81681aed4cdcff83852b2fda487b
SSDEEP

12288:5TC70LaoPh0tdo3K0+i/dQmUuLC7mSMCFQc5DfcJ:c7poP6tC36kQm7GM/ch4

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5806691582:AAH6u3QmlmdvCPddcnWF_1vIYT8ymbk2K8M/

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-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	552460340f9f8a431305b4cb9ec20875.exe
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	552460340f9f8a431305b4cb9ec20875.exe
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	552460340f9f8a431305b4cb9ec20875.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
21	api.ipify.org
22	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4964 set thread context of 4632	4964	552460340f9f8a431305b4cb9ec20875.exe	84

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4632	552460340f9f8a431305b4cb9ec20875.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4964 wrote to memory of 4632	4964	552460340f9f8a431305b4cb9ec20875.exe	84
PID 4964 wrote to memory of 4632	4964	552460340f9f8a431305b4cb9ec20875.exe	84
PID 4964 wrote to memory of 4632	4964	552460340f9f8a431305b4cb9ec20875.exe	84
PID 4964 wrote to memory of 4632	4964	552460340f9f8a431305b4cb9ec20875.exe	84
PID 4964 wrote to memory of 4632	4964	552460340f9f8a431305b4cb9ec20875.exe	84
PID 4964 wrote to memory of 4632	4964	552460340f9f8a431305b4cb9ec20875.exe	84
PID 4964 wrote to memory of 4632	4964	552460340f9f8a431305b4cb9ec20875.exe	84
PID 4964 wrote to memory of 4632	4964	552460340f9f8a431305b4cb9ec20875.exe	84

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	552460340f9f8a431305b4cb9ec20875.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	552460340f9f8a431305b4cb9ec20875.exe

C:\Users\Admin\AppData\Local\Temp\552460340f9f8a431305b4cb9ec20875.exe
"C:\Users\Admin\AppData\Local\Temp\552460340f9f8a431305b4cb9ec20875.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4964
- C:\Users\Admin\AppData\Local\Temp\552460340f9f8a431305b4cb9ec20875.exe
  "C:\Users\Admin\AppData\Local\Temp\552460340f9f8a431305b4cb9ec20875.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4632

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\552460340f9f8a431305b4cb9ec20875.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/4632-140-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/4632-147-0x0000000005900000-0x0000000005910000-memory.dmp

Filesize
64KB

Download
memory/4632-146-0x0000000007650000-0x0000000007812000-memory.dmp

Filesize
1.8MB

Download
memory/4632-145-0x0000000007320000-0x0000000007370000-memory.dmp

Filesize
320KB

Download
memory/4632-144-0x0000000005900000-0x0000000005910000-memory.dmp

Filesize
64KB

Download
memory/4632-143-0x00000000057A0000-0x0000000005806000-memory.dmp

Filesize
408KB

Download
memory/4964-136-0x00000000054F0000-0x00000000054FA000-memory.dmp

Filesize
40KB

Download
memory/4964-139-0x0000000007100000-0x000000000719C000-memory.dmp

Filesize
624KB

Download
memory/4964-138-0x0000000005710000-0x0000000005720000-memory.dmp

Filesize
64KB

Download
memory/4964-137-0x0000000005710000-0x0000000005720000-memory.dmp

Filesize
64KB

Download
memory/4964-133-0x0000000000A50000-0x0000000000AFA000-memory.dmp

Filesize
680KB

Download
memory/4964-135-0x0000000005350000-0x00000000053E2000-memory.dmp

Filesize
584KB

Download
memory/4964-134-0x0000000005820000-0x0000000005DC4000-memory.dmp

Filesize
5.6MB

Download

Analysis

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