agenttesla | 504f5f1a3d00d7be92e8b4c8149e35ce2313f1aad4cd13a16c4db7c46d6efb01

General

Target

504f5f1a3d00d7be92e8b4c8149e35ce2313f1aad4cd13a16c4db7c46d6efb01.exe
Size

608KB
MD5

f0cc1b3ad62c95620da01942c0104d0b
SHA1

4a68a6f94b2aba191e62887adfb77b2f79a9d099
SHA256

504f5f1a3d00d7be92e8b4c8149e35ce2313f1aad4cd13a16c4db7c46d6efb01
SHA512

e113271328d5e66f1f7e96f71cdb6ff2a00cc9d9894366349b5f603d0efc20233d9a0997d0102181737e45d8b493660ad4fb4120d157ce9dadbac8bef7005ea5
SSDEEP

12288:kXs2nLnqwF+u91tmqqBUYMxVczDstGtzmg4x4KvcjHmjzr/2TxusiWhcC:kXznLnP+FHgCDssRmjCOzr/2TsHWWC

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:
#YQnq^Yy5
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

Processes:

resource	yara_rule
behavioral1/memory/2916-9-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2916-18-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2916-16-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2916-14-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2916-11-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_EXE_Packed_GEN01

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

Processes:

resource	yara_rule
behavioral1/memory/2916-9-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2916-18-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2916-16-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2916-14-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2916-11-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects executables packed with or use KoiVM 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2428-4-0x0000000001F40000-0x0000000001FD4000-memory.dmp	INDICATOR_EXE_Packed_KoiVM

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

Processes:

resource	yara_rule
behavioral1/memory/2916-9-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2916-18-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2916-16-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2916-14-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2916-11-0x0000000000400000-0x0000000000440000-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

Processes:

resource	yara_rule
behavioral1/memory/2916-9-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2916-18-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2916-16-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2916-14-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2916-11-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

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

Processes:

resource	yara_rule
behavioral1/memory/2916-9-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2916-18-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2916-16-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2916-14-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2916-11-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

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

Processes:

resource	yara_rule
behavioral1/memory/2916-9-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2916-18-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2916-16-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2916-14-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2916-11-0x0000000000400000-0x0000000000440000-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.

Processes:

flow ioc

3 api.ipify.org
2 api.ipify.org

flow	ioc
3	api.ipify.org
2	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

Processes:

504f5f1a3d00d7be92e8b4c8149e35ce2313f1aad4cd13a16c4db7c46d6efb01.exe

description	pid	process	target process
PID 2428 set thread context of 2916	2428	504f5f1a3d00d7be92e8b4c8149e35ce2313f1aad4cd13a16c4db7c46d6efb01.exe	regasm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

regasm.exe

pid process

2916 regasm.exe
2916 regasm.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

regasm.exe

description pid process

Token: SeDebugPrivilege 2916 regasm.exe

pid	process
2916	regasm.exe
2916	regasm.exe

description	pid	process
Token: SeDebugPrivilege	2916	regasm.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

504f5f1a3d00d7be92e8b4c8149e35ce2313f1aad4cd13a16c4db7c46d6efb01.exe

description	pid	process	target process
PID 2428 wrote to memory of 2916	2428	504f5f1a3d00d7be92e8b4c8149e35ce2313f1aad4cd13a16c4db7c46d6efb01.exe	regasm.exe
PID 2428 wrote to memory of 2916	2428	504f5f1a3d00d7be92e8b4c8149e35ce2313f1aad4cd13a16c4db7c46d6efb01.exe	regasm.exe
PID 2428 wrote to memory of 2916	2428	504f5f1a3d00d7be92e8b4c8149e35ce2313f1aad4cd13a16c4db7c46d6efb01.exe	regasm.exe
PID 2428 wrote to memory of 2916	2428	504f5f1a3d00d7be92e8b4c8149e35ce2313f1aad4cd13a16c4db7c46d6efb01.exe	regasm.exe
PID 2428 wrote to memory of 2916	2428	504f5f1a3d00d7be92e8b4c8149e35ce2313f1aad4cd13a16c4db7c46d6efb01.exe	regasm.exe
PID 2428 wrote to memory of 2916	2428	504f5f1a3d00d7be92e8b4c8149e35ce2313f1aad4cd13a16c4db7c46d6efb01.exe	regasm.exe
PID 2428 wrote to memory of 2916	2428	504f5f1a3d00d7be92e8b4c8149e35ce2313f1aad4cd13a16c4db7c46d6efb01.exe	regasm.exe
PID 2428 wrote to memory of 2916	2428	504f5f1a3d00d7be92e8b4c8149e35ce2313f1aad4cd13a16c4db7c46d6efb01.exe	regasm.exe
PID 2428 wrote to memory of 2916	2428	504f5f1a3d00d7be92e8b4c8149e35ce2313f1aad4cd13a16c4db7c46d6efb01.exe	regasm.exe
PID 2428 wrote to memory of 2916	2428	504f5f1a3d00d7be92e8b4c8149e35ce2313f1aad4cd13a16c4db7c46d6efb01.exe	regasm.exe
PID 2428 wrote to memory of 2916	2428	504f5f1a3d00d7be92e8b4c8149e35ce2313f1aad4cd13a16c4db7c46d6efb01.exe	regasm.exe
PID 2428 wrote to memory of 2916	2428	504f5f1a3d00d7be92e8b4c8149e35ce2313f1aad4cd13a16c4db7c46d6efb01.exe	regasm.exe
PID 2428 wrote to memory of 2440	2428	504f5f1a3d00d7be92e8b4c8149e35ce2313f1aad4cd13a16c4db7c46d6efb01.exe	WerFault.exe
PID 2428 wrote to memory of 2440	2428	504f5f1a3d00d7be92e8b4c8149e35ce2313f1aad4cd13a16c4db7c46d6efb01.exe	WerFault.exe
PID 2428 wrote to memory of 2440	2428	504f5f1a3d00d7be92e8b4c8149e35ce2313f1aad4cd13a16c4db7c46d6efb01.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\504f5f1a3d00d7be92e8b4c8149e35ce2313f1aad4cd13a16c4db7c46d6efb01.exe
"C:\Users\Admin\AppData\Local\Temp\504f5f1a3d00d7be92e8b4c8149e35ce2313f1aad4cd13a16c4db7c46d6efb01.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2428

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:2916

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2428 -s 628
2⤵
PID:2440

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

memory/2428-19-0x000007FEF4E43000-0x000007FEF4E44000-memory.dmp

Filesize
4KB

Download
memory/2428-1-0x00000000003D0000-0x00000000003DC000-memory.dmp

Filesize
48KB

Download
memory/2428-2-0x000007FEF4E40000-0x000007FEF582C000-memory.dmp

Filesize
9.9MB

Download
memory/2428-3-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/2428-4-0x0000000001F40000-0x0000000001FD4000-memory.dmp

Filesize
592KB

Download
memory/2428-20-0x000007FEF4E40000-0x000007FEF582C000-memory.dmp

Filesize
9.9MB

Download
memory/2428-0-0x000007FEF4E43000-0x000007FEF4E44000-memory.dmp

Filesize
4KB

Download
memory/2916-5-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2916-18-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2916-16-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2916-14-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2916-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2916-11-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2916-9-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2916-7-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads