agenttesla | f7b3070840100d32f65bba384b75f42a31bbb1dc75df43ce5d978a82ca2eda41

General

Target

DOCUMENTS.exe
Size

512KB
MD5

c7b589b2c0ee8d2012007bf390786745
SHA1

b7d88731a5d9993772693715a713a15c48c33316
SHA256

229082e6470957bbc79991b39d292de7465999a94311c23fc0c2c03035ae42c3
SHA512

cc051b504a0837b5d18023361aece8b6ff5532a1f5f9a224aa587a2521ee4a4cad8e02591bd97358e79598f255e4e322066da45363af488fdd97bd00c1f15eb9

Score

10^/10

agenttesla snakebot collection coreentity keylogger rezer0 snakebot spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
midnapore@mpjewellers.com
Password:
mpjw2013

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/1652-56-0x0000000001D30000-0x0000000001D38000-memory.dmp	coreentity

SnakeBOT
SnakeBOT is a heavily obfuscated .NET downloader.
snakebot

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1700-61-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1700-62-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1700-63-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1700-64-0x000000000044AB1E-mapping.dmp	family_agenttesla
behavioral1/memory/1700-66-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1700-68-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla

Contains SnakeBOT related strings 1 IoCs

snakebot

Processes:

resource	yara_rule
behavioral1/memory/1652-54-0x0000000000010000-0x000000000009A000-memory.dmp	snakebot_strings

ReZer0 packer 1 IoCs

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

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1652-57-0x0000000007CA0000-0x0000000007CF6000-memory.dmp	rezer0

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

DOCUMENTS.exe

description pid process target process

PID 1652 set thread context of 1700 1652 DOCUMENTS.exe RegSvcs.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegSvcs.exe

pid process

1700 RegSvcs.exe
1700 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

DOCUMENTS.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 1652 DOCUMENTS.exe
Token: SeDebugPrivilege 1700 RegSvcs.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

DOCUMENTS.exeRegSvcs.exe

pid process

1652 DOCUMENTS.exe
1652 DOCUMENTS.exe
1700 RegSvcs.exe

description	pid	process	target process
PID 1652 set thread context of 1700	1652	DOCUMENTS.exe	RegSvcs.exe

pid	process
1700	RegSvcs.exe
1700	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1652	DOCUMENTS.exe
Token: SeDebugPrivilege	1700	RegSvcs.exe

pid	process
1652	DOCUMENTS.exe
1652	DOCUMENTS.exe
1700	RegSvcs.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

DOCUMENTS.exeRegSvcs.exe

description	pid	process	target process
PID 1652 wrote to memory of 1700	1652	DOCUMENTS.exe	RegSvcs.exe
PID 1652 wrote to memory of 1700	1652	DOCUMENTS.exe	RegSvcs.exe
PID 1652 wrote to memory of 1700	1652	DOCUMENTS.exe	RegSvcs.exe
PID 1652 wrote to memory of 1700	1652	DOCUMENTS.exe	RegSvcs.exe
PID 1652 wrote to memory of 1700	1652	DOCUMENTS.exe	RegSvcs.exe
PID 1652 wrote to memory of 1700	1652	DOCUMENTS.exe	RegSvcs.exe
PID 1652 wrote to memory of 1700	1652	DOCUMENTS.exe	RegSvcs.exe
PID 1652 wrote to memory of 1700	1652	DOCUMENTS.exe	RegSvcs.exe
PID 1652 wrote to memory of 1700	1652	DOCUMENTS.exe	RegSvcs.exe
PID 1652 wrote to memory of 1700	1652	DOCUMENTS.exe	RegSvcs.exe
PID 1652 wrote to memory of 1700	1652	DOCUMENTS.exe	RegSvcs.exe
PID 1652 wrote to memory of 1700	1652	DOCUMENTS.exe	RegSvcs.exe
PID 1700 wrote to memory of 332	1700	RegSvcs.exe	netsh.exe
PID 1700 wrote to memory of 332	1700	RegSvcs.exe	netsh.exe
PID 1700 wrote to memory of 332	1700	RegSvcs.exe	netsh.exe
PID 1700 wrote to memory of 332	1700	RegSvcs.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\DOCUMENTS.exe
"C:\Users\Admin\AppData\Local\Temp\DOCUMENTS.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1652

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1700

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:332

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/332-70-0x0000000000000000-mapping.dmp

Download
memory/1652-54-0x0000000000010000-0x000000000009A000-memory.dmp

Filesize
552KB

Download
memory/1652-55-0x0000000076461000-0x0000000076463000-memory.dmp

Filesize
8KB

Download
memory/1652-56-0x0000000001D30000-0x0000000001D38000-memory.dmp

Filesize
32KB

Download
memory/1652-57-0x0000000007CA0000-0x0000000007CF6000-memory.dmp

Filesize
344KB

Download
memory/1700-61-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1700-59-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1700-62-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1700-63-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1700-64-0x000000000044AB1E-mapping.dmp

Download
memory/1700-66-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1700-68-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1700-58-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads