agenttesla | b22198ac3df18326aba01db3b50038e880327bad5ec59cc248848cd98d5eb0f6

Analysis

max time kernel
147s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-11-2024 03:13

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General

Target

b22198ac3df18326aba01db3b50038e880327bad5ec59cc248848cd98d5eb0f6.exe
Size

347KB
MD5

daf2c3b134b7eb351027b07f9134093a
SHA1

bef5e2fbbb6409182e19025aa6eef37de9e2d9b5
SHA256

b22198ac3df18326aba01db3b50038e880327bad5ec59cc248848cd98d5eb0f6
SHA512

1041b5b3dcd1463a286dc9dada110f26dffc6ff8a8791527488e4527f09e13d82da79c9cab61aabf0e87cf04840b1ab5a839c0a427d39c1ba33f543c013e10d5
SSDEEP

6144:irT55Efr24puFmFySo/NJrMyzqPOEK6l6wQVaIucpahQMqgCNz1ZB3WpWIUAHcpv:m5Cfr2LQyh/rLcdQVhucjM1CDQQPpNGH

Score

10^/10

agenttesla redline xworm foz collection discovery execution infostealer keylogger persistence rat spyware stealer trojan

Malware Config

Extracted

Family

xworm

Version

5.0

212.162.149.53:7071

Mutex

9GNxvcpH1EHQrLdj

Attributes

Install_directory
%AppData%
install_file
XClient.exe

aes.plain

Extracted

Family

redline

Botnet

FOZ

212.162.149.53:36014

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
s82.gocheapweb.com
Port:
587
Username:
[email protected]
Password:
london@1759
Email To:
[email protected]

Signatures

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

Detect Xworm Payload 3 IoCs

resource	yara_rule
behavioral1/files/0x000a0000000122ce-5.dat	family_xworm
behavioral1/memory/2640-9-0x00000000003C0000-0x00000000003D0000-memory.dmp	family_xworm
behavioral1/memory/2224-39-0x0000000001070000-0x0000000001080000-memory.dmp	family_xworm

RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
infostealer redline

RedLine payload 3 IoCs

resource	yara_rule
behavioral1/files/0x0008000000015d07-12.dat	family_redline
behavioral1/memory/2820-15-0x0000000000810000-0x0000000000862000-memory.dmp	family_redline
behavioral1/memory/2640-23-0x000000001AD40000-0x000000001AD92000-memory.dmp	family_redline

Redline family
redline
Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1636	powershell.exe

Drops startup file 4 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	XClient.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	XClient.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\apihost.exe.lnk	XClient.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	apihost.exe

Executes dropped EXE 3 IoCs

pid	Process
2640	XClient.exe
2820	build.exe
2224	apihost.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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	XClient.exe
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	XClient.exe
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	XClient.exe

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	apihost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	XClient.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
8	checkip.dyndns.org
11	api.ipify.org
12	api.ipify.org

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 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	build.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3008	timeout.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1976	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
2640	XClient.exe
2224	apihost.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2640	XClient.exe
2820	build.exe
2820	build.exe
2820	build.exe
2640	XClient.exe
2640	XClient.exe
1636	powershell.exe
2640	XClient.exe
2640	XClient.exe
2224	apihost.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2640	XClient.exe
Token: SeDebugPrivilege	2820	build.exe
Token: SeDebugPrivilege	1636	powershell.exe
Token: SeDebugPrivilege	2224	apihost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2640	XClient.exe
2224	apihost.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 2700 wrote to memory of 2640	2700	b22198ac3df18326aba01db3b50038e880327bad5ec59cc248848cd98d5eb0f6.exe	31
PID 2700 wrote to memory of 2640	2700	b22198ac3df18326aba01db3b50038e880327bad5ec59cc248848cd98d5eb0f6.exe	31
PID 2700 wrote to memory of 2640	2700	b22198ac3df18326aba01db3b50038e880327bad5ec59cc248848cd98d5eb0f6.exe	31
PID 2700 wrote to memory of 2820	2700	b22198ac3df18326aba01db3b50038e880327bad5ec59cc248848cd98d5eb0f6.exe	32
PID 2700 wrote to memory of 2820	2700	b22198ac3df18326aba01db3b50038e880327bad5ec59cc248848cd98d5eb0f6.exe	32
PID 2700 wrote to memory of 2820	2700	b22198ac3df18326aba01db3b50038e880327bad5ec59cc248848cd98d5eb0f6.exe	32
PID 2700 wrote to memory of 2820	2700	b22198ac3df18326aba01db3b50038e880327bad5ec59cc248848cd98d5eb0f6.exe	32
PID 2640 wrote to memory of 1636	2640	XClient.exe	34
PID 2640 wrote to memory of 1636	2640	XClient.exe	34
PID 2640 wrote to memory of 1636	2640	XClient.exe	34
PID 2640 wrote to memory of 1976	2640	XClient.exe	36
PID 2640 wrote to memory of 1976	2640	XClient.exe	36
PID 2640 wrote to memory of 1976	2640	XClient.exe	36
PID 2640 wrote to memory of 2224	2640	XClient.exe	38
PID 2640 wrote to memory of 2224	2640	XClient.exe	38
PID 2640 wrote to memory of 2224	2640	XClient.exe	38
PID 2224 wrote to memory of 2420	2224	apihost.exe	40
PID 2224 wrote to memory of 2420	2224	apihost.exe	40
PID 2224 wrote to memory of 2420	2224	apihost.exe	40
PID 2420 wrote to memory of 3008	2420	cmd.exe	42
PID 2420 wrote to memory of 3008	2420	cmd.exe	42
PID 2420 wrote to memory of 3008	2420	cmd.exe	42

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	XClient.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	XClient.exe

C:\Users\Admin\AppData\Local\Temp\b22198ac3df18326aba01db3b50038e880327bad5ec59cc248848cd98d5eb0f6.exe
"C:\Users\Admin\AppData\Local\Temp\b22198ac3df18326aba01db3b50038e880327bad5ec59cc248848cd98d5eb0f6.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2700
- C:\Users\Admin\AppData\Local\Temp\XClient.exe
  "C:\Users\Admin\AppData\Local\Temp\XClient.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  - outlook_win_path
  PID:2640
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\ACCApi'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1636
- - C:\Windows\system32\schtasks.exe
    "schtasks.exe" /create /tn AccSys /tr "C:\Users\Admin\AppData\Roaming\ACCApi\apihost.exe" /st 03:18 /du 23:59 /sc daily /ri 1 /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:1976
- - C:\Users\Admin\AppData\Roaming\ACCApi\apihost.exe
    "C:\Users\Admin\AppData\Roaming\ACCApi\apihost.exe"
    3⤵
    - Drops startup file
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: AddClipboardFormatListener
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2224
  - - C:\Windows\system32\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp1B7C.tmp.bat""
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2420
    - - C:\Windows\system32\timeout.exe
        
        timeout 3
        5⤵
        Delays execution with timeout.exe
        
        PID:3008
- C:\Users\Admin\AppData\Local\Temp\build.exe
  "C:\Users\Admin\AppData\Local\Temp\build.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2820

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

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

Query Registry

T1012

System Information Discovery

T1082

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

C:\Users\Admin\AppData\Local\Temp\XClient.exe

Filesize
40KB

MD5
1c5cf825e29b63a62c3c8b1589d51a1e

SHA1
ea4f1dceeeea35b6bd17f4040511bbd0341246a8

SHA256
d868406f1fdc6a5c15a70f03f6279fb8a3fe190ea5a4911bf6839fc483c753b0

SHA512
c780aff70b930ea221ffd96081c02116f76d2c7b20590fff6ab04038e2aef50ad57eb8f28a67c4dfdb6a00e3fe393e1238d448c3f346585242ee18d180203fd2

Download Submit
C:\Users\Admin\AppData\Local\Temp\build.exe

Filesize
300KB

MD5
1ed2ecae05aaa1c505136f5252287cc7

SHA1
2c73c09437c4c1d5e90013a6ca7a65ac0a5fadc5

SHA256
d771f70ba342e5d4cd7f129a4a2b4a6c6c7293233135f266db33f356986a70f9

SHA512
ca82139310ea62ec8703f6fcb19d843644a5ce40323e8f7857c9fd3173bb0796eb20f9002209b9fcbfa7ce9858fe3b932e070f8449bc2736b6712d39515d9219

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp1B7C.tmp.bat

Filesize
163B

MD5
8daec21600bbaf32c82068014abc5299

SHA1
b981a92256e62d6f15d8f69e0a4e42edebfc8f18

SHA256
35eeaae44db0d3b101b44273164c84b8048bf75fb2e2f3317a60de440b3db05a

SHA512
1c14f9c14e9396303811051176a7e61ccf7a80a4d2f45b74764eb486321f90beb8ffdead5bce2ed38d90ad005639dd56e10f7a8e8d0084e9f596c1760ed10153

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk

Filesize
692B

MD5
d46c024c459146cd02408b2a932387ca

SHA1
8c5c6bb10663d146b7ec28bd0c0f58bcf14cc3e8

SHA256
45fefbff8150f3cf5159e99982cc8ba082ae1e1a96ff6f46dcc78035dab78d92

SHA512
d2ddc999bd43746a9e4cfbbc2df2f6115e964ba208767b0776d37f778feef0e2517d5ac9196dad0be77e05aeba970b8d63cebcbd9b47082ff15ecc94b072dd75

Download Submit
memory/1636-31-0x000000001B5D0000-0x000000001B8B2000-memory.dmp

Filesize
2.9MB

Download
memory/1636-32-0x0000000001D90000-0x0000000001D98000-memory.dmp

Filesize
32KB

Download
memory/2224-46-0x0000000000BE0000-0x0000000000BEC000-memory.dmp

Filesize
48KB

Download
memory/2224-39-0x0000000001070000-0x0000000001080000-memory.dmp

Filesize
64KB

Download
memory/2640-23-0x000000001AD40000-0x000000001AD92000-memory.dmp

Filesize
328KB

Download
memory/2640-22-0x0000000000390000-0x00000000003AE000-memory.dmp

Filesize
120KB

Download
memory/2640-24-0x00000000004F0000-0x0000000000508000-memory.dmp

Filesize
96KB

Download
memory/2640-25-0x00000000023F0000-0x0000000002434000-memory.dmp

Filesize
272KB

Download
memory/2640-21-0x000007FEF6620000-0x000007FEF700C000-memory.dmp

Filesize
9.9MB

Download
memory/2640-16-0x000007FEF6620000-0x000007FEF700C000-memory.dmp

Filesize
9.9MB

Download
memory/2640-40-0x000007FEF6620000-0x000007FEF700C000-memory.dmp

Filesize
9.9MB

Download
memory/2640-9-0x00000000003C0000-0x00000000003D0000-memory.dmp

Filesize
64KB

Download
memory/2700-0-0x000007FEF6623000-0x000007FEF6624000-memory.dmp

Filesize
4KB

Download
memory/2700-14-0x000007FEF6620000-0x000007FEF700C000-memory.dmp

Filesize
9.9MB

Download
memory/2700-1-0x0000000000920000-0x000000000097E000-memory.dmp

Filesize
376KB

Download
memory/2820-15-0x0000000000810000-0x0000000000862000-memory.dmp

Filesize
328KB

Download