agenttesla | acc1283fdd8eb6fc76069a30db6f082461fe87bc470cfc6fda0873c08f99ba13

Analysis

max time kernel
140s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-09-2024 15:58

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General

Target

RFQ Delivery 3 Stones Excel.exe
Size

857KB
MD5

ee4a98eb8c3adef7708a6974f5931b25
SHA1

d45813a6b419be0a4cea2a07ef7cb8a75e261293
SHA256

a2e301c703d79b6d39f84d4135ff8bb2681500b1da30d034285453d5cb493a55
SHA512

b6ae06d0dc4a0c0c3cf273fcfa6c3afd47377ee27e87276a0e17451d067fd0156d38c99b231e2d7dd28a4c0b386267a3fe97aa4995e9daa0e54b36eaa401f5b2
SSDEEP

12288:l59M/CUUzFaobCO4kBSzCg6UPH//tg+QZYhyFMVBuWj+5286A28nV67a4z:lrYUhzRsCg6Yn++QKySKq7bAhVUz

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan upx

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
zgZsPQ$0

Signatures

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

AgentTesla payload 7 IoCs

resource	yara_rule
behavioral1/memory/2816-12-0x0000000000350000-0x000000000038C000-memory.dmp	family_agenttesla
behavioral1/memory/2816-14-0x0000000000400000-0x0000000000485000-memory.dmp	family_agenttesla
behavioral1/memory/2816-11-0x0000000000350000-0x000000000038C000-memory.dmp	family_agenttesla
behavioral1/memory/2816-10-0x0000000000400000-0x0000000000485000-memory.dmp	family_agenttesla
behavioral1/memory/2816-9-0x0000000000400000-0x0000000000485000-memory.dmp	family_agenttesla
behavioral1/memory/2816-28-0x0000000075640000-0x0000000075750000-memory.dmp	family_agenttesla
behavioral1/memory/2816-43-0x0000000000400000-0x0000000000485000-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\shipping.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 3 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

Credentials from Web Browsers
T1555.003
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ Delivery 3 Stones Excel.exe
Key opened	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ Delivery 3 Stones Excel.exe
Key opened	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ Delivery 3 Stones Excel.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
2	api.ipify.org
3	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2092 set thread context of 2816	2092	RFQ Delivery 3 Stones Excel.exe	31

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2816-8-0x0000000000400000-0x0000000000485000-memory.dmp	upx
behavioral1/memory/2816-6-0x0000000000400000-0x0000000000485000-memory.dmp	upx
behavioral1/memory/2816-14-0x0000000000400000-0x0000000000485000-memory.dmp	upx
behavioral1/memory/2816-10-0x0000000000400000-0x0000000000485000-memory.dmp	upx
behavioral1/memory/2816-9-0x0000000000400000-0x0000000000485000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RFQ Delivery 3 Stones Excel.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RFQ Delivery 3 Stones Excel.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2092	RFQ Delivery 3 Stones Excel.exe
2816	RFQ Delivery 3 Stones Excel.exe
2816	RFQ Delivery 3 Stones Excel.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2092	RFQ Delivery 3 Stones Excel.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2816	RFQ Delivery 3 Stones Excel.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2092 wrote to memory of 2796	2092	RFQ Delivery 3 Stones Excel.exe	30
PID 2092 wrote to memory of 2796	2092	RFQ Delivery 3 Stones Excel.exe	30
PID 2092 wrote to memory of 2796	2092	RFQ Delivery 3 Stones Excel.exe	30
PID 2092 wrote to memory of 2796	2092	RFQ Delivery 3 Stones Excel.exe	30
PID 2092 wrote to memory of 2796	2092	RFQ Delivery 3 Stones Excel.exe	30
PID 2092 wrote to memory of 2796	2092	RFQ Delivery 3 Stones Excel.exe	30
PID 2092 wrote to memory of 2816	2092	RFQ Delivery 3 Stones Excel.exe	31
PID 2092 wrote to memory of 2816	2092	RFQ Delivery 3 Stones Excel.exe	31
PID 2092 wrote to memory of 2816	2092	RFQ Delivery 3 Stones Excel.exe	31
PID 2092 wrote to memory of 2816	2092	RFQ Delivery 3 Stones Excel.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ Delivery 3 Stones Excel.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ Delivery 3 Stones Excel.exe

C:\Users\Admin\AppData\Local\Temp\RFQ Delivery 3 Stones Excel.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ Delivery 3 Stones Excel.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2092
- C:\Windows\SysWOW64\notepad.exe
  "C:\Windows\system32\notepad.exe"
  2⤵
  - Drops startup file
  - System Location Discovery: System Language Discovery
  PID:2796
- C:\Users\Admin\AppData\Local\Temp\RFQ Delivery 3 Stones Excel.exe
  "C:\Users\Admin\AppData\Local\Temp\RFQ Delivery 3 Stones Excel.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2816

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2092-1-0x0000000000890000-0x00000000008A1000-memory.dmp

Filesize
68KB

Download
memory/2092-3-0x00000000008C0000-0x00000000008C1000-memory.dmp

Filesize
4KB

Download
memory/2092-2-0x0000000000890000-0x00000000008A1000-memory.dmp

Filesize
68KB

Download
memory/2092-0-0x00000000003C0000-0x00000000003C1000-memory.dmp

Filesize
4KB

Download
memory/2092-13-0x0000000000400000-0x00000000004DD000-memory.dmp

Filesize
884KB

Download
memory/2796-15-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/2796-4-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/2816-29-0x0000000075640000-0x0000000075750000-memory.dmp

Filesize
1.1MB

Download
memory/2816-32-0x0000000075640000-0x0000000075750000-memory.dmp

Filesize
1.1MB

Download
memory/2816-12-0x0000000000350000-0x000000000038C000-memory.dmp

Filesize
240KB

Download
memory/2816-14-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/2816-6-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/2816-11-0x0000000000350000-0x000000000038C000-memory.dmp

Filesize
240KB

Download
memory/2816-10-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/2816-9-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/2816-28-0x0000000075640000-0x0000000075750000-memory.dmp

Filesize
1.1MB

Download
memory/2816-8-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/2816-33-0x0000000075640000-0x0000000075750000-memory.dmp

Filesize
1.1MB

Download
memory/2816-35-0x0000000075640000-0x0000000075750000-memory.dmp

Filesize
1.1MB

Download
memory/2816-34-0x0000000075640000-0x0000000075750000-memory.dmp

Filesize
1.1MB

Download
memory/2816-26-0x0000000075651000-0x0000000075652000-memory.dmp

Filesize
4KB

Download
memory/2816-31-0x0000000075640000-0x0000000075750000-memory.dmp

Filesize
1.1MB

Download
memory/2816-30-0x0000000075640000-0x0000000075750000-memory.dmp

Filesize
1.1MB

Download
memory/2816-36-0x0000000075640000-0x0000000075750000-memory.dmp

Filesize
1.1MB

Download
memory/2816-37-0x0000000075640000-0x0000000075750000-memory.dmp

Filesize
1.1MB

Download
memory/2816-38-0x0000000075640000-0x0000000075750000-memory.dmp

Filesize
1.1MB

Download
memory/2816-39-0x0000000075640000-0x0000000075750000-memory.dmp

Filesize
1.1MB

Download
memory/2816-40-0x0000000075640000-0x0000000075750000-memory.dmp

Filesize
1.1MB

Download
memory/2816-41-0x0000000075640000-0x0000000075750000-memory.dmp

Filesize
1.1MB

Download
memory/2816-42-0x0000000075640000-0x0000000075750000-memory.dmp

Filesize
1.1MB

Download
memory/2816-43-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/2816-44-0x0000000075651000-0x0000000075652000-memory.dmp

Filesize
4KB

Download