agenttesla | 34d023e0f662d1dcacc5168a46a686bea468f3c7ea424c5af500b9d885c71121

Analysis

max time kernel
168s
max time network
161s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
18/07/2023, 20:46

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General

Target

INQUIRY 03746 SRC Project.exe
Size

222KB
MD5

fdc6598bd27d4707cdc94286ffb6ffc4
SHA1

ffc0d6d1df15adf481bb601bd3971873167b9cc5
SHA256

da9c5f609ebbcf19aef3d6992d451ccbe4fa77858660f6861146d1a486e1d98e
SHA512

f300adb7ba7d428added50de4443b07304fb222f2ab1a5e2a8e020f4e3a852f267cdb3241f6de7c5e2b040707e559d68a83a3679392b3bc878b4f2ed47869fe9
SSDEEP

6144:vYa6txz2Mad5XR9sNa57Zeb9cyU84Yas0eKY6r6b:vYnxJadz9VQb9erA6i

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan upx

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
ifeanyi@12

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
1660	INQUIRY 03746 SRC Project.exe

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

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4480-141-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral2/memory/4480-143-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral2/memory/4480-145-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral2/memory/4480-150-0x0000000000400000-0x0000000000444000-memory.dmp	upx

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1498570331-2313266200-788959944-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INQUIRY 03746 SRC Project.exe
Key opened	\REGISTRY\USER\S-1-5-21-1498570331-2313266200-788959944-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INQUIRY 03746 SRC Project.exe
Key opened	\REGISTRY\USER\S-1-5-21-1498570331-2313266200-788959944-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INQUIRY 03746 SRC Project.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1498570331-2313266200-788959944-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\soxtdmibwgbk = "C:\\Users\\Admin\\AppData\\Roaming\\otdyienwsb\\kgplueaj.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\INQUIRY 03746 SRC Project.exe\""	INQUIRY 03746 SRC Project.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
56	api.ipify.org
57	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1660 set thread context of 4480	1660	INQUIRY 03746 SRC Project.exe	88

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1660	INQUIRY 03746 SRC Project.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4480	INQUIRY 03746 SRC Project.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4480	INQUIRY 03746 SRC Project.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1660 wrote to memory of 4480	1660	INQUIRY 03746 SRC Project.exe	88
PID 1660 wrote to memory of 4480	1660	INQUIRY 03746 SRC Project.exe	88
PID 1660 wrote to memory of 4480	1660	INQUIRY 03746 SRC Project.exe	88
PID 1660 wrote to memory of 4480	1660	INQUIRY 03746 SRC Project.exe	88

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1498570331-2313266200-788959944-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INQUIRY 03746 SRC Project.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1498570331-2313266200-788959944-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	INQUIRY 03746 SRC Project.exe

C:\Users\Admin\AppData\Local\Temp\INQUIRY 03746 SRC Project.exe
"C:\Users\Admin\AppData\Local\Temp\INQUIRY 03746 SRC Project.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1660
- C:\Users\Admin\AppData\Local\Temp\INQUIRY 03746 SRC Project.exe
  "C:\Users\Admin\AppData\Local\Temp\INQUIRY 03746 SRC Project.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:4480

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsi2FF2.tmp\jjlylgcvwt.dll

Filesize
80KB

MD5
2c2e6a2f5a7e893a1b8c07fcf9d359b6

SHA1
fa2e8983df08166859e4d32130bc4adad237ee71

SHA256
06e0824c61f2dddcee4ea8afc345ab0c16762b5d598ceb4caf5e43bd42a14605

SHA512
4c75893440ff43fd82cc32ae75202237aeec863a5d40f4024a997f9dc31de248ffef8532959762bd2ba8e69791ac154917200a5dd500c119dccdaadb342c083c

Download Submit
memory/1660-139-0x00000000057F0000-0x00000000057F2000-memory.dmp

Filesize
8KB

Download
memory/4480-141-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4480-143-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4480-145-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4480-146-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/4480-147-0x0000000004AC0000-0x0000000004AD0000-memory.dmp

Filesize
64KB

Download
memory/4480-148-0x0000000004AC0000-0x0000000004AD0000-memory.dmp

Filesize
64KB

Download
memory/4480-149-0x0000000004AD0000-0x0000000005074000-memory.dmp

Filesize
5.6MB

Download
memory/4480-150-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4480-151-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/4480-153-0x0000000004AC0000-0x0000000004AD0000-memory.dmp

Filesize
64KB

Download
memory/4480-154-0x0000000004A20000-0x0000000004A86000-memory.dmp

Filesize
408KB

Download
memory/4480-155-0x0000000004AC0000-0x0000000004AD0000-memory.dmp

Filesize
64KB

Download
memory/4480-156-0x0000000004AC0000-0x0000000004AD0000-memory.dmp

Filesize
64KB

Download
memory/4480-158-0x0000000004AC0000-0x0000000004AD0000-memory.dmp

Filesize
64KB

Download
memory/4480-160-0x0000000005E00000-0x0000000005E92000-memory.dmp

Filesize
584KB

Download
memory/4480-161-0x00000000060A0000-0x00000000060AA000-memory.dmp

Filesize
40KB

Download
memory/4480-162-0x0000000005C50000-0x0000000005CA0000-memory.dmp

Filesize
320KB

Download
memory/4480-163-0x00000000061A0000-0x0000000006362000-memory.dmp

Filesize
1.8MB

Download
memory/4480-173-0x0000000006370000-0x000000000640C000-memory.dmp

Filesize
624KB

Download