agenttesla | 3fb6e1925a0ef970149daeeb17b68d01e5ae9b8e11d756a079024e6aa408452f

General

Target

HALLEY.exe
Size

497KB
MD5

b3364f04d488a8ea67c1e1e4fb47ea28
SHA1

2deb277b823cf83c36bcbf631e4821353ca9b0bc
SHA256

3fb6e1925a0ef970149daeeb17b68d01e5ae9b8e11d756a079024e6aa408452f
SHA512

a085cd89d17256e2fd1f2ca6331d3240c5f0f6d5f39d6319ee4892032f04b9d303aa18fba17ab1b0ee799aea8d834a77882d4ff57af4a4d063a7764a07bcec8c

Score

10^/10

agenttesla coreentity keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
eaidworkforce@yandex.com
Password:
mandiesel91

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

CoreEntity .NET Packer 1 IoCs

A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

coreentity

Processes:

resource	yara_rule
behavioral1/memory/1668-4-0x0000000000490000-0x0000000000493000-memory.dmp	coreentity

AgentTesla Payload 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1708-6-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1708-7-0x000000000044C95E-mapping.dmp	family_agenttesla
behavioral1/memory/1708-8-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1708-9-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

rezer0 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1668-5-0x0000000004BD0000-0x0000000004C23000-memory.dmp	rezer0

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

Data from Local System
T1005

Credentials in Files
T1081
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

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Suspicious use of SetThreadContext 1 IoCs

Processes:

HALLEY.exe

description pid process target process

PID 1668 set thread context of 1708 1668 HALLEY.exe HALLEY.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

HALLEY.exeHALLEY.exe

pid process

1668 HALLEY.exe
1668 HALLEY.exe
1708 HALLEY.exe
1708 HALLEY.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

HALLEY.exeHALLEY.exe

description pid process

Token: SeDebugPrivilege 1668 HALLEY.exe
Token: SeDebugPrivilege 1708 HALLEY.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

HALLEY.exe

pid process

1708 HALLEY.exe

description	pid	process	target process
PID 1668 set thread context of 1708	1668	HALLEY.exe	HALLEY.exe

pid	process
1668	HALLEY.exe
1668	HALLEY.exe
1708	HALLEY.exe
1708	HALLEY.exe

description	pid	process
Token: SeDebugPrivilege	1668	HALLEY.exe
Token: SeDebugPrivilege	1708	HALLEY.exe

pid	process
1708	HALLEY.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

HALLEY.exeHALLEY.exe

description	pid	process	target process
PID 1668 wrote to memory of 1708	1668	HALLEY.exe	HALLEY.exe
PID 1668 wrote to memory of 1708	1668	HALLEY.exe	HALLEY.exe
PID 1668 wrote to memory of 1708	1668	HALLEY.exe	HALLEY.exe
PID 1668 wrote to memory of 1708	1668	HALLEY.exe	HALLEY.exe
PID 1668 wrote to memory of 1708	1668	HALLEY.exe	HALLEY.exe
PID 1668 wrote to memory of 1708	1668	HALLEY.exe	HALLEY.exe
PID 1668 wrote to memory of 1708	1668	HALLEY.exe	HALLEY.exe
PID 1668 wrote to memory of 1708	1668	HALLEY.exe	HALLEY.exe
PID 1668 wrote to memory of 1708	1668	HALLEY.exe	HALLEY.exe
PID 1708 wrote to memory of 432	1708	HALLEY.exe	netsh.exe
PID 1708 wrote to memory of 432	1708	HALLEY.exe	netsh.exe
PID 1708 wrote to memory of 432	1708	HALLEY.exe	netsh.exe
PID 1708 wrote to memory of 432	1708	HALLEY.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\HALLEY.exe
"C:\Users\Admin\AppData\Local\Temp\HALLEY.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1668

C:\Users\Admin\AppData\Local\Temp\HALLEY.exe
"{path}"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1708

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:432

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Exfiltration

Command and Control

Impact

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Downloads

memory/432-13-0x0000000000000000-mapping.dmp

Download
memory/1668-0-0x0000000074640000-0x0000000074D2E000-memory.dmp

Filesize
6.9MB

Download
memory/1668-1-0x0000000000D00000-0x0000000000D01000-memory.dmp

Filesize
4KB

Download
memory/1668-3-0x0000000004AB0000-0x0000000004B0B000-memory.dmp

Filesize
364KB

Download
memory/1668-4-0x0000000000490000-0x0000000000493000-memory.dmp

Filesize
12KB

Download
memory/1668-5-0x0000000004BD0000-0x0000000004C23000-memory.dmp

Filesize
332KB

Download
memory/1708-6-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1708-7-0x000000000044C95E-mapping.dmp

Download
memory/1708-8-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1708-9-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1708-10-0x0000000074640000-0x0000000074D2E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads