agenttesla | 959b6ea6911bdd717e0675b34721eb87fa9b8cbab3dfd785b2dbb292d5cd1eb5

Analysis

max time kernel
141s
max time network
122s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29-04-2024 04:51

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General

Target

Zhejiang Beifeng quotation.exe
Size

750KB
MD5

ccb26b0248d76e4861c4ab3c7d4dbf2b
SHA1

d82bf2747f14a9bd14ff13f22ce1b558d6b8a495
SHA256

e7cb1048d6ed1b7ce7cf749aa86a335d0a5ac62a6912bdcffe6fc90ad6898f09
SHA512

b90237a8bca255eab4b7929f0ccb078830d1041a3064364509e2941f0bf535ea011b2bff227d7a4ba92c131e2ab6f98f51b18bf26dd669910a018e6b24913f95
SSDEEP

12288:mzvyFcE4IMkvtlLnUHRyC0ZQXO7dEkPopRfx9aUdh0DLyNP+H0V9un:MGcUvtGoC02Ohz45ra403+KK9+

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan upx

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
HEoxefZ9

Signatures

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

AgentTesla payload 9 IoCs

resource	yara_rule
behavioral1/memory/2660-14-0x0000000000350000-0x000000000039C000-memory.dmp	family_agenttesla
behavioral1/memory/2660-15-0x0000000000400000-0x00000000004A5000-memory.dmp	family_agenttesla
behavioral1/memory/2660-13-0x0000000000350000-0x000000000039C000-memory.dmp	family_agenttesla
behavioral1/memory/2660-10-0x0000000000400000-0x00000000004A5000-memory.dmp	family_agenttesla
behavioral1/memory/2660-44-0x0000000002270000-0x00000000022B0000-memory.dmp	family_agenttesla
behavioral1/memory/2660-35-0x0000000001F20000-0x0000000001F30000-memory.dmp	family_agenttesla
behavioral1/memory/2660-27-0x0000000076030000-0x0000000076140000-memory.dmp	family_agenttesla
behavioral1/memory/2660-45-0x0000000000400000-0x00000000004A5000-memory.dmp	family_agenttesla
behavioral1/memory/2660-58-0x0000000002270000-0x00000000022B0000-memory.dmp	family_agenttesla

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\app.vbs	notepad.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
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
T1552.001
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
T1552.001
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
T1552.001

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2660-5-0x0000000000400000-0x00000000004A5000-memory.dmp	upx
behavioral1/memory/2660-15-0x0000000000400000-0x00000000004A5000-memory.dmp	upx
behavioral1/memory/2660-11-0x0000000000400000-0x00000000004A5000-memory.dmp	upx
behavioral1/memory/2660-10-0x0000000000400000-0x00000000004A5000-memory.dmp	upx
behavioral1/memory/2660-8-0x0000000000400000-0x00000000004A5000-memory.dmp	upx
behavioral1/memory/2660-36-0x0000000001F20000-0x0000000001F30000-memory.dmp	upx
behavioral1/memory/2660-52-0x0000000001F20000-0x0000000001F30000-memory.dmp	upx

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Zhejiang Beifeng quotation.exe
Key opened	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Zhejiang Beifeng quotation.exe
Key opened	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Zhejiang Beifeng quotation.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\YYtJku = "C:\\Users\\Admin\\AppData\\Roaming\\YYtJku\\YYtJku.exe"	Zhejiang Beifeng quotation.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2292 set thread context of 2660	2292	Zhejiang Beifeng quotation.exe	29

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2292	Zhejiang Beifeng quotation.exe
2660	Zhejiang Beifeng quotation.exe
2660	Zhejiang Beifeng quotation.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2292	Zhejiang Beifeng quotation.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2660	Zhejiang Beifeng quotation.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2660	Zhejiang Beifeng quotation.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2292 wrote to memory of 1788	2292	Zhejiang Beifeng quotation.exe	28
PID 2292 wrote to memory of 1788	2292	Zhejiang Beifeng quotation.exe	28
PID 2292 wrote to memory of 1788	2292	Zhejiang Beifeng quotation.exe	28
PID 2292 wrote to memory of 1788	2292	Zhejiang Beifeng quotation.exe	28
PID 2292 wrote to memory of 1788	2292	Zhejiang Beifeng quotation.exe	28
PID 2292 wrote to memory of 1788	2292	Zhejiang Beifeng quotation.exe	28
PID 2292 wrote to memory of 2660	2292	Zhejiang Beifeng quotation.exe	29
PID 2292 wrote to memory of 2660	2292	Zhejiang Beifeng quotation.exe	29
PID 2292 wrote to memory of 2660	2292	Zhejiang Beifeng quotation.exe	29
PID 2292 wrote to memory of 2660	2292	Zhejiang Beifeng quotation.exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Zhejiang Beifeng quotation.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Zhejiang Beifeng quotation.exe

C:\Users\Admin\AppData\Local\Temp\Zhejiang Beifeng quotation.exe
"C:\Users\Admin\AppData\Local\Temp\Zhejiang Beifeng quotation.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2292
- C:\Windows\SysWOW64\notepad.exe
  "C:\Windows\system32\notepad.exe"
  2⤵
  - Drops startup file
  PID:1788
- C:\Users\Admin\AppData\Local\Temp\Zhejiang Beifeng quotation.exe
  "C:\Users\Admin\AppData\Local\Temp\Zhejiang Beifeng quotation.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2660

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1788-9-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/1788-3-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2292-1-0x0000000000250000-0x0000000000259000-memory.dmp

Filesize
36KB

Download
memory/2292-2-0x0000000000300000-0x0000000000301000-memory.dmp

Filesize
4KB

Download
memory/2292-0-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2292-6-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/2660-40-0x0000000076030000-0x0000000076140000-memory.dmp

Filesize
1.1MB

Download
memory/2660-34-0x0000000001F20000-0x0000000001F30000-memory.dmp

Filesize
64KB

Download
memory/2660-13-0x0000000000350000-0x000000000039C000-memory.dmp

Filesize
304KB

Download
memory/2660-11-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download
memory/2660-10-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download
memory/2660-14-0x0000000000350000-0x000000000039C000-memory.dmp

Filesize
304KB

Download
memory/2660-8-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download
memory/2660-37-0x0000000001F20000-0x0000000001F30000-memory.dmp

Filesize
64KB

Download
memory/2660-36-0x0000000001F20000-0x0000000001F30000-memory.dmp

Filesize
64KB

Download
memory/2660-39-0x0000000074570000-0x0000000074B1B000-memory.dmp

Filesize
5.7MB

Download
memory/2660-42-0x0000000076030000-0x0000000076140000-memory.dmp

Filesize
1.1MB

Download
memory/2660-41-0x0000000076030000-0x0000000076140000-memory.dmp

Filesize
1.1MB

Download
memory/2660-44-0x0000000002270000-0x00000000022B0000-memory.dmp

Filesize
256KB

Download
memory/2660-43-0x0000000076030000-0x0000000076140000-memory.dmp

Filesize
1.1MB

Download
memory/2660-5-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download
memory/2660-38-0x0000000074570000-0x0000000074B1B000-memory.dmp

Filesize
5.7MB

Download
memory/2660-35-0x0000000001F20000-0x0000000001F30000-memory.dmp

Filesize
64KB

Download
memory/2660-15-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download
memory/2660-33-0x0000000001F20000-0x0000000001F30000-memory.dmp

Filesize
64KB

Download
memory/2660-32-0x0000000001F20000-0x0000000001F30000-memory.dmp

Filesize
64KB

Download
memory/2660-31-0x0000000001F20000-0x0000000001F30000-memory.dmp

Filesize
64KB

Download
memory/2660-30-0x0000000076030000-0x0000000076140000-memory.dmp

Filesize
1.1MB

Download
memory/2660-29-0x0000000001F20000-0x0000000001F30000-memory.dmp

Filesize
64KB

Download
memory/2660-28-0x0000000001F20000-0x0000000001F30000-memory.dmp

Filesize
64KB

Download
memory/2660-27-0x0000000076030000-0x0000000076140000-memory.dmp

Filesize
1.1MB

Download
memory/2660-45-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download
memory/2660-47-0x0000000074570000-0x0000000074B1B000-memory.dmp

Filesize
5.7MB

Download
memory/2660-50-0x0000000001F20000-0x0000000001F30000-memory.dmp

Filesize
64KB

Download
memory/2660-49-0x0000000001F20000-0x0000000001F30000-memory.dmp

Filesize
64KB

Download
memory/2660-52-0x0000000001F20000-0x0000000001F30000-memory.dmp

Filesize
64KB

Download
memory/2660-51-0x0000000001F20000-0x0000000001F30000-memory.dmp

Filesize
64KB

Download
memory/2660-53-0x0000000001F20000-0x0000000001F30000-memory.dmp

Filesize
64KB

Download
memory/2660-54-0x0000000074570000-0x0000000074B1B000-memory.dmp

Filesize
5.7MB

Download
memory/2660-55-0x0000000002270000-0x00000000022B0000-memory.dmp

Filesize
256KB

Download
memory/2660-58-0x0000000002270000-0x00000000022B0000-memory.dmp

Filesize
256KB

Download
memory/2660-62-0x0000000002270000-0x00000000022B0000-memory.dmp

Filesize
256KB

Download