agenttesla | 015ddffd4dc9f5e7f09d79f5d60d5ef42b9054f63522766fd5f2ecbb7196d667

General

Target

015ddffd4dc9f5e7f09d79f5d60d5ef42b9054f63522766fd5f2ecbb7196d667.exe
Size

2.5MB
MD5

8777abeae397cf3033273c614b777c2e
SHA1

c90bdf41a1447986b7307ba256613e2e21c62a33
SHA256

015ddffd4dc9f5e7f09d79f5d60d5ef42b9054f63522766fd5f2ecbb7196d667
SHA512

3a89ba6b462f8648122d8b9b2fc9cb9be2d46614cfec0c3ab3193ae86f0a8aba561a88d63d0009167686bd44ac3ecaf1f0ad808fcee722d84995fdf2c5fe6fcf
SSDEEP

24576:1qCdMP5SdezpyFNrhSCPuoX0k6O2BusxExVJhevLg31+mYGnKBF2JETXHOa5WL3n:1P6hSrcCPT0JvLg31+mYGnKDRTXs3S4

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.temikan.com.tr
Port:
587
Username:
[email protected]
Password:
temikan63
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. 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3012-5-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/3012-3-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/3012-1-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_EXE_Packed_GEN01

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3012-5-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/3012-3-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/3012-1-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects executables referencing Windows vault credential objects. Observed in infostealers 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3012-5-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/3012-3-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/3012-1-0x0000000000400000-0x0000000000440000-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 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3012-5-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/3012-3-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/3012-1-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

Detects executables referencing many email and collaboration clients. Observed in information stealers 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3012-5-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/3012-3-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/3012-1-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

Detects executables referencing many file transfer clients. Observed in information stealers 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3012-5-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/3012-3-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/3012-1-0x0000000000400000-0x0000000000440000-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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

015ddffd4dc9f5e7f09d79f5d60d5ef42b9054f63522766fd5f2ecbb7196d667.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\015ddffd4dc9f5e7f09d79f5d60d5ef42b9054f63522766fd5f2ecbb7196d667 = "\"C:\\Users\\Admin\\015ddffd4dc9f5e7f09d79f5d60d5ef42b9054f63522766fd5f2ecbb7196d667.exe\""	015ddffd4dc9f5e7f09d79f5d60d5ef42b9054f63522766fd5f2ecbb7196d667.exe

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

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

flow	ioc
4	api.ipify.org
5	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

Processes:

015ddffd4dc9f5e7f09d79f5d60d5ef42b9054f63522766fd5f2ecbb7196d667.exe

description	pid	process	target process
PID 1760 set thread context of 3012	1760	015ddffd4dc9f5e7f09d79f5d60d5ef42b9054f63522766fd5f2ecbb7196d667.exe	regasm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

regasm.exe

pid process

3012 regasm.exe
3012 regasm.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

regasm.exe

description pid process

Token: SeDebugPrivilege 3012 regasm.exe

pid	process
3012	regasm.exe
3012	regasm.exe

description	pid	process
Token: SeDebugPrivilege	3012	regasm.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

015ddffd4dc9f5e7f09d79f5d60d5ef42b9054f63522766fd5f2ecbb7196d667.exe

description	pid	process	target process
PID 1760 wrote to memory of 3012	1760	015ddffd4dc9f5e7f09d79f5d60d5ef42b9054f63522766fd5f2ecbb7196d667.exe	regasm.exe
PID 1760 wrote to memory of 3012	1760	015ddffd4dc9f5e7f09d79f5d60d5ef42b9054f63522766fd5f2ecbb7196d667.exe	regasm.exe
PID 1760 wrote to memory of 3012	1760	015ddffd4dc9f5e7f09d79f5d60d5ef42b9054f63522766fd5f2ecbb7196d667.exe	regasm.exe
PID 1760 wrote to memory of 3012	1760	015ddffd4dc9f5e7f09d79f5d60d5ef42b9054f63522766fd5f2ecbb7196d667.exe	regasm.exe
PID 1760 wrote to memory of 3012	1760	015ddffd4dc9f5e7f09d79f5d60d5ef42b9054f63522766fd5f2ecbb7196d667.exe	regasm.exe
PID 1760 wrote to memory of 3012	1760	015ddffd4dc9f5e7f09d79f5d60d5ef42b9054f63522766fd5f2ecbb7196d667.exe	regasm.exe
PID 1760 wrote to memory of 3012	1760	015ddffd4dc9f5e7f09d79f5d60d5ef42b9054f63522766fd5f2ecbb7196d667.exe	regasm.exe
PID 1760 wrote to memory of 3012	1760	015ddffd4dc9f5e7f09d79f5d60d5ef42b9054f63522766fd5f2ecbb7196d667.exe	regasm.exe
PID 1760 wrote to memory of 3012	1760	015ddffd4dc9f5e7f09d79f5d60d5ef42b9054f63522766fd5f2ecbb7196d667.exe	regasm.exe
PID 1760 wrote to memory of 3012	1760	015ddffd4dc9f5e7f09d79f5d60d5ef42b9054f63522766fd5f2ecbb7196d667.exe	regasm.exe
PID 1760 wrote to memory of 3012	1760	015ddffd4dc9f5e7f09d79f5d60d5ef42b9054f63522766fd5f2ecbb7196d667.exe	regasm.exe
PID 1760 wrote to memory of 3012	1760	015ddffd4dc9f5e7f09d79f5d60d5ef42b9054f63522766fd5f2ecbb7196d667.exe	regasm.exe

C:\Users\Admin\AppData\Local\Temp\015ddffd4dc9f5e7f09d79f5d60d5ef42b9054f63522766fd5f2ecbb7196d667.exe
"C:\Users\Admin\AppData\Local\Temp\015ddffd4dc9f5e7f09d79f5d60d5ef42b9054f63522766fd5f2ecbb7196d667.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1760

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:3012

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

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

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Downloads

memory/3012-5-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3012-3-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3012-1-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads