agenttesla | 66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7

Analysis

max time kernel
119s
max time network
129s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
16/04/2024, 01:13

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General

Target

66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe
Size

1007KB
MD5

3fdac5be870ce5d0c30c06854203624a
SHA1

616317b2de7a62935c0630439b4bd884e8c79f3e
SHA256

66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7
SHA512

686fb0dcd723a1fe005b8d4f0e1d014caf1a9b7eebceffd75b48949f7fce3a32457d215fbbe0d65ef69c98a52b0190cc8feaf90b363cae7ee311344aba7342a9
SSDEEP

12288:UJ4NBFTi6/LSqFb4R7u59FSIogAHpXBoftbQleal:a4NH/LScb4Vu5aIogIpXe6lea

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.almaks.rs
Port:
587
Username:
[email protected]
Password:
102Alma03-3
Email To:
[email protected]

Signatures

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

Detect packed .NET executables. Mostly AgentTeslaV4. 5 IoCs

resource	yara_rule
behavioral1/memory/2688-17-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2688-18-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2688-21-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2688-23-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2688-25-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 5 IoCs

resource	yara_rule
behavioral1/memory/2688-17-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2688-18-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2688-21-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2688-23-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2688-25-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 5 IoCs

resource	yara_rule
behavioral1/memory/2688-17-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/2688-18-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/2688-21-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/2688-23-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/2688-25-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL

Detects executables packed with SmartAssembly 1 IoCs

resource	yara_rule
behavioral1/memory/2112-5-0x0000000000580000-0x000000000058C000-memory.dmp	INDICATOR_EXE_Packed_SmartAssembly

Detects executables referencing Windows vault credential objects. Observed in infostealers 5 IoCs

resource	yara_rule
behavioral1/memory/2688-17-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2688-18-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2688-21-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2688-23-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2688-25-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 5 IoCs

resource	yara_rule
behavioral1/memory/2688-17-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2688-18-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2688-21-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2688-23-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2688-25-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

Detects executables referencing many email and collaboration clients. Observed in information stealers 5 IoCs

resource	yara_rule
behavioral1/memory/2688-17-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2688-18-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2688-21-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2688-23-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2688-25-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

Detects executables referencing many file transfer clients. Observed in information stealers 5 IoCs

resource	yara_rule
behavioral1/memory/2688-17-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2688-18-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2688-21-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2688-23-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2688-25-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

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

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-1-5-21-778096762-2241304387-192235952-1000\Software\Microsoft\Windows\CurrentVersion\Run\NcnBt = "C:\\Users\\Admin\\AppData\\Roaming\\NcnBt\\NcnBt.exe"	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe

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
4	api.ipify.org
5	api.ipify.org
6	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2112 set thread context of 2688	2112	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	32

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
2596	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2688	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe
2688	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe
2664	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2688	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe
Token: SeDebugPrivilege	2664	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 2664	2112	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	28
PID 2112 wrote to memory of 2664	2112	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	28
PID 2112 wrote to memory of 2664	2112	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	28
PID 2112 wrote to memory of 2664	2112	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	28
PID 2112 wrote to memory of 2596	2112	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	30
PID 2112 wrote to memory of 2596	2112	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	30
PID 2112 wrote to memory of 2596	2112	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	30
PID 2112 wrote to memory of 2596	2112	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	30
PID 2112 wrote to memory of 2688	2112	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	32
PID 2112 wrote to memory of 2688	2112	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	32
PID 2112 wrote to memory of 2688	2112	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	32
PID 2112 wrote to memory of 2688	2112	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	32
PID 2112 wrote to memory of 2688	2112	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	32
PID 2112 wrote to memory of 2688	2112	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	32
PID 2112 wrote to memory of 2688	2112	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	32
PID 2112 wrote to memory of 2688	2112	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	32
PID 2112 wrote to memory of 2688	2112	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	32

C:\Users\Admin\AppData\Local\Temp\66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe
"C:\Users\Admin\AppData\Local\Temp\66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2112
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\XJRRUUSuj.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2664
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XJRRUUSuj" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7CAF.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2596
- C:\Users\Admin\AppData\Local\Temp\66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe
  "C:\Users\Admin\AppData\Local\Temp\66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2688

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp7CAF.tmp

Filesize
1KB

MD5
4d2f18e1f8f234be4d40b22bd8da7f02

SHA1
e23d13d94be73e4c1cb95815610d6f8a62e045b4

SHA256
9f72de5518282d8e6f7c58346cd76410d331d8b53fcb35bbfb013198d8554c26

SHA512
2a48aae986619a196f174b6810a9390aae94727404ce1d9d7be9150751355d454a93d2c10daaab6763378f9e3c276233d172275a9f58e9ecda33b0c94d7a1d9f

Download Submit
memory/2112-6-0x0000000004F70000-0x0000000004FF4000-memory.dmp

Filesize
528KB

Download
memory/2112-2-0x00000000006E0000-0x0000000000720000-memory.dmp

Filesize
256KB

Download
memory/2112-3-0x00000000002A0000-0x00000000002B2000-memory.dmp

Filesize
72KB

Download
memory/2112-4-0x0000000000470000-0x0000000000478000-memory.dmp

Filesize
32KB

Download
memory/2112-5-0x0000000000580000-0x000000000058C000-memory.dmp

Filesize
48KB

Download
memory/2112-26-0x0000000073E10000-0x00000000744FE000-memory.dmp

Filesize
6.9MB

Download
memory/2112-1-0x0000000073E10000-0x00000000744FE000-memory.dmp

Filesize
6.9MB

Download
memory/2112-0-0x00000000013B0000-0x00000000014B2000-memory.dmp

Filesize
1.0MB

Download
memory/2664-33-0x000000006E410000-0x000000006E9BB000-memory.dmp

Filesize
5.7MB

Download
memory/2664-32-0x00000000023D0000-0x0000000002410000-memory.dmp

Filesize
256KB

Download
memory/2664-31-0x00000000023D0000-0x0000000002410000-memory.dmp

Filesize
256KB

Download
memory/2664-30-0x000000006E410000-0x000000006E9BB000-memory.dmp

Filesize
5.7MB

Download
memory/2664-29-0x000000006E410000-0x000000006E9BB000-memory.dmp

Filesize
5.7MB

Download
memory/2688-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2688-25-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2688-23-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2688-27-0x0000000073E10000-0x00000000744FE000-memory.dmp

Filesize
6.9MB

Download
memory/2688-28-0x0000000001290000-0x00000000012D0000-memory.dmp

Filesize
256KB

Download
memory/2688-21-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2688-18-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2688-17-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2688-16-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2688-14-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2688-35-0x0000000073E10000-0x00000000744FE000-memory.dmp

Filesize
6.9MB

Download