agenttesla | 9191f5a9acd51585880fb47d8992aada6cfea3c7a9af9909cbd32eef49862acf

General

Target

NEW SIGNED CONTRACTS.exe
Size

719KB
MD5

c8c2b93f8b79377e5d346edfbf9504b3
SHA1

0e38e95f3cdba184363c9b2930a5f4d7d84895c2
SHA256

58800a690eb8217cf31f262261c856ceb8b73a580b1daab25f1cdac61394f918
SHA512

1d1dc875502359ee460fe6ad3437cfe3c511b9a18916a95f21ce3d5eae389b32029dc5f943d64f115cafaeb58d140b965a51bb5f6b837aadf0f1243c7d7fc571
SSDEEP

12288:ufZYRxA4Y5lyA/BxSPCn2m9ugFv4ji7X6RejFjb4+Z8ZLe9MQcIneW1caCoLXz4E:DRa2mAqUijSej9b4K+LccOeN4Xz4H1

Score

10^/10

agenttesla discovery execution keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.stilbo.eu
Port:
587
Username:
[email protected]
Password:
StilBO_#1
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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2808	powershell.exe
2764	powershell.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

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
4	api.ipify.org
5	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1924 set thread context of 2840	1924	NEW SIGNED CONTRACTS.exe	37

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 5 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NEW SIGNED CONTRACTS.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NEW SIGNED CONTRACTS.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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
2756	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2840	NEW SIGNED CONTRACTS.exe
2840	NEW SIGNED CONTRACTS.exe
2764	powershell.exe
2808	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2840	NEW SIGNED CONTRACTS.exe
Token: SeDebugPrivilege	2808	powershell.exe
Token: SeDebugPrivilege	2764	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2840	NEW SIGNED CONTRACTS.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1924 wrote to memory of 2808	1924	NEW SIGNED CONTRACTS.exe	31
PID 1924 wrote to memory of 2808	1924	NEW SIGNED CONTRACTS.exe	31
PID 1924 wrote to memory of 2808	1924	NEW SIGNED CONTRACTS.exe	31
PID 1924 wrote to memory of 2808	1924	NEW SIGNED CONTRACTS.exe	31
PID 1924 wrote to memory of 2764	1924	NEW SIGNED CONTRACTS.exe	33
PID 1924 wrote to memory of 2764	1924	NEW SIGNED CONTRACTS.exe	33
PID 1924 wrote to memory of 2764	1924	NEW SIGNED CONTRACTS.exe	33
PID 1924 wrote to memory of 2764	1924	NEW SIGNED CONTRACTS.exe	33
PID 1924 wrote to memory of 2756	1924	NEW SIGNED CONTRACTS.exe	35
PID 1924 wrote to memory of 2756	1924	NEW SIGNED CONTRACTS.exe	35
PID 1924 wrote to memory of 2756	1924	NEW SIGNED CONTRACTS.exe	35
PID 1924 wrote to memory of 2756	1924	NEW SIGNED CONTRACTS.exe	35
PID 1924 wrote to memory of 2840	1924	NEW SIGNED CONTRACTS.exe	37
PID 1924 wrote to memory of 2840	1924	NEW SIGNED CONTRACTS.exe	37
PID 1924 wrote to memory of 2840	1924	NEW SIGNED CONTRACTS.exe	37
PID 1924 wrote to memory of 2840	1924	NEW SIGNED CONTRACTS.exe	37
PID 1924 wrote to memory of 2840	1924	NEW SIGNED CONTRACTS.exe	37
PID 1924 wrote to memory of 2840	1924	NEW SIGNED CONTRACTS.exe	37
PID 1924 wrote to memory of 2840	1924	NEW SIGNED CONTRACTS.exe	37
PID 1924 wrote to memory of 2840	1924	NEW SIGNED CONTRACTS.exe	37
PID 1924 wrote to memory of 2840	1924	NEW SIGNED CONTRACTS.exe	37

C:\Users\Admin\AppData\Local\Temp\NEW SIGNED CONTRACTS.exe
"C:\Users\Admin\AppData\Local\Temp\NEW SIGNED CONTRACTS.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1924
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\NEW SIGNED CONTRACTS.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2808
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DPgPZhZIZ.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2764
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DPgPZhZIZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD9EB.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2756
- C:\Users\Admin\AppData\Local\Temp\NEW SIGNED CONTRACTS.exe
  "C:\Users\Admin\AppData\Local\Temp\NEW SIGNED CONTRACTS.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2840

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

4

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpD9EB.tmp

Filesize
1KB

MD5
d415c8c2ea93f5d5605822b183d4271c

SHA1
658ccc4f7d92d9dec78c41b3462e33e3c904789a

SHA256
9c90291f0af0ab7bfe86e5cd8acaf1b9991811b0b55a19bd8d92e11cac8d8f23

SHA512
64864e6b4d8b1a0a10a98904e02dfd2ad80bf568b65ae1452b723290807f73b9b3e68f7f679c5cd479e7921b376fbe707837f3d25a9616fd22c4cf0ff6ad6a0b

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\7WNCUM0RT4J1HZ33U1AV.temp

Filesize
7KB

MD5
a0bc10baf1a7c8b0ce85d41e3a422635

SHA1
9cc0ae5c6501b53a859317a4aa2bcb78e2a640dd

SHA256
879d521b87f99062c9a1819fa271be1a9cdb2f842059cb8e7375bfd540ea3ddc

SHA512
e6edb6c49cdcdc5272381895d00184498b3a6c87dcbb6c9a15903e6bab94c7c99523089cece7f33a5e63d3a387edeefd8fe8a86f62b118109d6f56d7d5cf7519

Download Submit
memory/1924-4-0x000000007415E000-0x000000007415F000-memory.dmp

Filesize
4KB

Download
memory/1924-31-0x0000000074150000-0x000000007483E000-memory.dmp

Filesize
6.9MB

Download
memory/1924-0-0x000000007415E000-0x000000007415F000-memory.dmp

Filesize
4KB

Download
memory/1924-5-0x0000000074150000-0x000000007483E000-memory.dmp

Filesize
6.9MB

Download
memory/1924-6-0x0000000004D40000-0x0000000004DC6000-memory.dmp

Filesize
536KB

Download
memory/1924-2-0x0000000074150000-0x000000007483E000-memory.dmp

Filesize
6.9MB

Download
memory/1924-1-0x0000000001190000-0x000000000124A000-memory.dmp

Filesize
744KB

Download
memory/1924-3-0x00000000005D0000-0x00000000005EA000-memory.dmp

Filesize
104KB

Download
memory/2840-19-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2840-25-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2840-28-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2840-30-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2840-29-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2840-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2840-23-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2840-21-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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