agenttesla | a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265

General

Target

a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe
Size

1.6MB
MD5

2fa23a2e93b10ae07013e24692f35b6d
SHA1

9481be2f68a244f9825295fda01c5f1fce66648d
SHA256

a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265
SHA512

21ecbe170b529c7373d9eda6750eaa7c7a578d995e75f54c4466ae2132dae0ec5f2d79e4fefceb05016b965031d2fdf568da604dfb367a886face4af10c5bacd
SSDEEP

12288:HEzZEAmD9/RR3biUuyjpgebm6YRAbAZRwox15bGz5XWCMmsI8txwFF71a0:HEzZ6/RR3b4spUZRJ15beWCMmywPp

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.trisquarespl.com
Port:
587
Username:
[email protected]
Password:
#)YFjJf1
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/1684-11-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/1684-15-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/1684-13-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/1684-8-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/1684-9-0x0000000000400000-0x0000000000440000-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/1684-11-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/1684-15-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/1684-13-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/1684-8-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/1684-9-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects executables packed with or use KoiVM 1 IoCs

resource	yara_rule
behavioral1/memory/2656-3-0x000000001A7F0000-0x000000001A884000-memory.dmp	INDICATOR_EXE_Packed_KoiVM

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

resource	yara_rule
behavioral1/memory/1684-11-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/1684-15-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/1684-13-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/1684-8-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/1684-9-0x0000000000400000-0x0000000000440000-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/1684-11-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/1684-15-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/1684-13-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/1684-8-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/1684-9-0x0000000000400000-0x0000000000440000-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/1684-11-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/1684-15-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/1684-13-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/1684-8-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/1684-9-0x0000000000400000-0x0000000000440000-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/1684-11-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/1684-15-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/1684-13-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/1684-8-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/1684-9-0x0000000000400000-0x0000000000440000-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

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 2656 set thread context of 1684	2656	a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe	28

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1684	regasm.exe
1684	regasm.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2656	a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe
Token: SeDebugPrivilege	1684	regasm.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2656 wrote to memory of 1684	2656	a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe	28
PID 2656 wrote to memory of 1684	2656	a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe	28
PID 2656 wrote to memory of 1684	2656	a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe	28
PID 2656 wrote to memory of 1684	2656	a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe	28
PID 2656 wrote to memory of 1684	2656	a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe	28
PID 2656 wrote to memory of 1684	2656	a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe	28
PID 2656 wrote to memory of 1684	2656	a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe	28
PID 2656 wrote to memory of 1684	2656	a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe	28
PID 2656 wrote to memory of 1684	2656	a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe	28
PID 2656 wrote to memory of 1684	2656	a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe	28
PID 2656 wrote to memory of 1684	2656	a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe	28
PID 2656 wrote to memory of 1684	2656	a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe	28
PID 2656 wrote to memory of 2772	2656	a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe	29
PID 2656 wrote to memory of 2772	2656	a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe	29
PID 2656 wrote to memory of 2772	2656	a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe	29

C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe
"C:\Users\Admin\AppData\Local\Temp\a2692baba867417cdb7c2a5b1c1ab8eec75a0359962872fdd218f844e836f265.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2656
- 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
  PID:1684
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2656 -s 676
  2⤵
  PID:2772

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/1684-8-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1684-15-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1684-9-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1684-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1684-5-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1684-11-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1684-6-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1684-13-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2656-1-0x0000000001050000-0x000000000106E000-memory.dmp

Filesize
120KB

Download
memory/2656-0-0x000007FEF5813000-0x000007FEF5814000-memory.dmp

Filesize
4KB

Download
memory/2656-3-0x000000001A7F0000-0x000000001A884000-memory.dmp

Filesize
592KB

Download
memory/2656-2-0x000007FEF5810000-0x000007FEF61FC000-memory.dmp

Filesize
9.9MB

Download
memory/2656-16-0x000007FEF5813000-0x000007FEF5814000-memory.dmp

Filesize
4KB

Download
memory/2656-17-0x000007FEF5810000-0x000007FEF61FC000-memory.dmp

Filesize
9.9MB

Download

Analysis

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