agenttesla | 4d8922b974892bd34b0d1471b80c009e2bc87482771fd033b190807c5d2ef4a5

Analysis

max time kernel
92s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
08-12-2022 18:18

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General

Target

341ff4121328104ec5db8662d94cfdfdcffd7c36bc022a8fabea180d3c19adbc.exe
Size

970KB
MD5

32bbd2bd2b4d2e185783f25d64c6cdbf
SHA1

32413fb565d883ce6c73ceb0bf2244dbab4303c1
SHA256

341ff4121328104ec5db8662d94cfdfdcffd7c36bc022a8fabea180d3c19adbc
SHA512

283168bb49700cac4132e477b4bc82f7cf2109c9e942b16efeb545e5f0e97e510bf8f54cce5d5e05b0249a82928dcc09e51c8af98afa40dbd3393cadccdb4f11
SSDEEP

24576:TyeAKI2PDAEQeO6Ru9+DzOofcZ6IYrwg5+Rkz:TyepXPUH3oDzzful6e

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
host39.registrar-servers.com
Port:
587
Username:
enquiries@aircat-bn.cf
Password:
payment 12345

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:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.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

43 api.ipify.org
44 api.ipify.org

flow	ioc
43	api.ipify.org
44	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

Processes:

341ff4121328104ec5db8662d94cfdfdcffd7c36bc022a8fabea180d3c19adbc.exe

description	pid	process	target process
PID 4660 set thread context of 4720	4660	341ff4121328104ec5db8662d94cfdfdcffd7c36bc022a8fabea180d3c19adbc.exe	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

MSBuild.exe

pid process

4720 MSBuild.exe
4720 MSBuild.exe
4720 MSBuild.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

MSBuild.exe

description pid process

Token: SeDebugPrivilege 4720 MSBuild.exe

pid	process
4720	MSBuild.exe
4720	MSBuild.exe
4720	MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	4720	MSBuild.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

341ff4121328104ec5db8662d94cfdfdcffd7c36bc022a8fabea180d3c19adbc.exe

description	pid	process	target process
PID 4660 wrote to memory of 4720	4660	341ff4121328104ec5db8662d94cfdfdcffd7c36bc022a8fabea180d3c19adbc.exe	MSBuild.exe
PID 4660 wrote to memory of 4720	4660	341ff4121328104ec5db8662d94cfdfdcffd7c36bc022a8fabea180d3c19adbc.exe	MSBuild.exe
PID 4660 wrote to memory of 4720	4660	341ff4121328104ec5db8662d94cfdfdcffd7c36bc022a8fabea180d3c19adbc.exe	MSBuild.exe
PID 4660 wrote to memory of 4720	4660	341ff4121328104ec5db8662d94cfdfdcffd7c36bc022a8fabea180d3c19adbc.exe	MSBuild.exe
PID 4660 wrote to memory of 4720	4660	341ff4121328104ec5db8662d94cfdfdcffd7c36bc022a8fabea180d3c19adbc.exe	MSBuild.exe
PID 4660 wrote to memory of 4720	4660	341ff4121328104ec5db8662d94cfdfdcffd7c36bc022a8fabea180d3c19adbc.exe	MSBuild.exe
PID 4660 wrote to memory of 4720	4660	341ff4121328104ec5db8662d94cfdfdcffd7c36bc022a8fabea180d3c19adbc.exe	MSBuild.exe
PID 4660 wrote to memory of 4720	4660	341ff4121328104ec5db8662d94cfdfdcffd7c36bc022a8fabea180d3c19adbc.exe	MSBuild.exe

outlook_office_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\341ff4121328104ec5db8662d94cfdfdcffd7c36bc022a8fabea180d3c19adbc.exe
"C:\Users\Admin\AppData\Local\Temp\341ff4121328104ec5db8662d94cfdfdcffd7c36bc022a8fabea180d3c19adbc.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4660

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4720

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/4660-132-0x0000000000120000-0x0000000000218000-memory.dmp

Filesize
992KB

Download
memory/4660-133-0x00000000051A0000-0x0000000005744000-memory.dmp

Filesize
5.6MB

Download
memory/4660-134-0x0000000004BF0000-0x0000000004C82000-memory.dmp

Filesize
584KB

Download
memory/4660-135-0x0000000004C90000-0x0000000004D2C000-memory.dmp

Filesize
624KB

Download
memory/4660-136-0x0000000004BC0000-0x0000000004BCA000-memory.dmp

Filesize
40KB

Download
memory/4720-137-0x0000000000000000-mapping.dmp

Download
memory/4720-138-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4720-139-0x0000000006570000-0x00000000065D6000-memory.dmp

Filesize
408KB

Download
memory/4720-140-0x0000000006CB0000-0x0000000006D00000-memory.dmp

Filesize
320KB

Download