agenttesla | 968b35df94059f162a58a881cfcd63c0f2b2daf904f9599c48fade1f4fde8605

General

Target

968b35df94059f162a58a881cfcd63c0f2b2daf904f9599c48fade1f4fde8605.exe
Size

637KB
MD5

1e5cf68be8be84206025810b3e0b1454
SHA1

69ccfa76796e58b9ebd30c1928d00f02caa60cac
SHA256

968b35df94059f162a58a881cfcd63c0f2b2daf904f9599c48fade1f4fde8605
SHA512

2ddfcbb652358cafedb962c704316aa651bf0809f0e38dec4d8bf764733f5b9ca8756ea64ed03c4294285d43e49f7cb5a70fb98f29d9e382438beac71d498759
SSDEEP

12288:zrKj8uwR0PbmCkq2AhEPQb39hcW1WLNKUqdLiCvgMEmCwDe3G:z2AuwR0PbmCjhEP0xiBM+bMi2

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.blancahotel.com
Port:
587
Username:
[email protected]
Password:
J4OsTW6J
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/1748-14-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/1748-11-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/1748-9-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/1748-18-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/1748-16-0x0000000000400000-0x0000000000440000-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/1748-14-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/1748-11-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/1748-9-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/1748-18-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/1748-16-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects executables packed with or use KoiVM 1 IoCs

resource	yara_rule
behavioral1/memory/2064-4-0x0000000000520000-0x00000000005B4000-memory.dmp	INDICATOR_EXE_Packed_KoiVM

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

resource	yara_rule
behavioral1/memory/1748-14-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/1748-11-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/1748-9-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/1748-18-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/1748-16-0x0000000000400000-0x0000000000440000-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/1748-14-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/1748-11-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/1748-9-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/1748-18-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/1748-16-0x0000000000400000-0x0000000000440000-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/1748-14-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/1748-11-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/1748-9-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/1748-18-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/1748-16-0x0000000000400000-0x0000000000440000-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/1748-14-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/1748-11-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/1748-9-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/1748-18-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/1748-16-0x0000000000400000-0x0000000000440000-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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2064 set thread context of 1748	2064	968b35df94059f162a58a881cfcd63c0f2b2daf904f9599c48fade1f4fde8605.exe	28

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1748	regasm.exe
1748	regasm.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2064	968b35df94059f162a58a881cfcd63c0f2b2daf904f9599c48fade1f4fde8605.exe
Token: SeDebugPrivilege	1748	regasm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1748	regasm.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2064 wrote to memory of 1748	2064	968b35df94059f162a58a881cfcd63c0f2b2daf904f9599c48fade1f4fde8605.exe	28
PID 2064 wrote to memory of 1748	2064	968b35df94059f162a58a881cfcd63c0f2b2daf904f9599c48fade1f4fde8605.exe	28
PID 2064 wrote to memory of 1748	2064	968b35df94059f162a58a881cfcd63c0f2b2daf904f9599c48fade1f4fde8605.exe	28
PID 2064 wrote to memory of 1748	2064	968b35df94059f162a58a881cfcd63c0f2b2daf904f9599c48fade1f4fde8605.exe	28
PID 2064 wrote to memory of 1748	2064	968b35df94059f162a58a881cfcd63c0f2b2daf904f9599c48fade1f4fde8605.exe	28
PID 2064 wrote to memory of 1748	2064	968b35df94059f162a58a881cfcd63c0f2b2daf904f9599c48fade1f4fde8605.exe	28
PID 2064 wrote to memory of 1748	2064	968b35df94059f162a58a881cfcd63c0f2b2daf904f9599c48fade1f4fde8605.exe	28
PID 2064 wrote to memory of 1748	2064	968b35df94059f162a58a881cfcd63c0f2b2daf904f9599c48fade1f4fde8605.exe	28
PID 2064 wrote to memory of 1748	2064	968b35df94059f162a58a881cfcd63c0f2b2daf904f9599c48fade1f4fde8605.exe	28
PID 2064 wrote to memory of 1748	2064	968b35df94059f162a58a881cfcd63c0f2b2daf904f9599c48fade1f4fde8605.exe	28
PID 2064 wrote to memory of 1748	2064	968b35df94059f162a58a881cfcd63c0f2b2daf904f9599c48fade1f4fde8605.exe	28
PID 2064 wrote to memory of 1748	2064	968b35df94059f162a58a881cfcd63c0f2b2daf904f9599c48fade1f4fde8605.exe	28
PID 2064 wrote to memory of 2960	2064	968b35df94059f162a58a881cfcd63c0f2b2daf904f9599c48fade1f4fde8605.exe	29
PID 2064 wrote to memory of 2960	2064	968b35df94059f162a58a881cfcd63c0f2b2daf904f9599c48fade1f4fde8605.exe	29
PID 2064 wrote to memory of 2960	2064	968b35df94059f162a58a881cfcd63c0f2b2daf904f9599c48fade1f4fde8605.exe	29

C:\Users\Admin\AppData\Local\Temp\968b35df94059f162a58a881cfcd63c0f2b2daf904f9599c48fade1f4fde8605.exe
"C:\Users\Admin\AppData\Local\Temp\968b35df94059f162a58a881cfcd63c0f2b2daf904f9599c48fade1f4fde8605.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2064
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1748
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2064 -s 652
  2⤵
  PID:2960

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

Lateral Movement

Collection

Data from Local System

4

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1748-9-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1748-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1748-16-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1748-18-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1748-11-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1748-5-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1748-14-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1748-7-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2064-1-0x00000000001A0000-0x00000000001B4000-memory.dmp

Filesize
80KB

Download
memory/2064-0-0x000007FEF5693000-0x000007FEF5694000-memory.dmp

Filesize
4KB

Download
memory/2064-4-0x0000000000520000-0x00000000005B4000-memory.dmp

Filesize
592KB

Download
memory/2064-3-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/2064-2-0x000007FEF5690000-0x000007FEF607C000-memory.dmp

Filesize
9.9MB

Download
memory/2064-19-0x000007FEF5693000-0x000007FEF5694000-memory.dmp

Filesize
4KB

Download
memory/2064-20-0x000007FEF5690000-0x000007FEF607C000-memory.dmp

Filesize
9.9MB

Download

Analysis

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