agenttesla | 7b0d27def7d743d8a91bd89449e914d7b92b0966f0fdf768cbd6849a09532103

General

Target

PRODUCTS NEEDED (CN).exe
Size

514KB
MD5

4195b0b7b1ec9072a8717a7d7a13cfab
SHA1

2dfe70908bd40de09651083d74ddd5f65daf9ce6
SHA256

9f0a0182a91d2b110b48f2ec84c078b680655fc6b887f6b622367da1180ce6af
SHA512

a62fa26578eeb4452840549c409cce6616f111198656210e353b651b249f98b178d84d11f42725777733052a4af050e51e3b4bcca5390a96ebe8090765737f4c

Score

10^/10

agenttesla collection coreentity keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.ru
Port:
587
Username:
[email protected]
Password:
solomon12345$$$1

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/1272-56-0x0000000000520000-0x0000000000528000-memory.dmp	coreentity

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1596-61-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1596-62-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1596-63-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1596-64-0x0000000000449EEE-mapping.dmp	family_agenttesla
behavioral1/memory/1596-66-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1596-68-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla

CoreCCC Packer 1 IoCs

Detects CoreCCC packer used to load .NET malware.

Processes:

resource	yara_rule
behavioral1/memory/1272-54-0x0000000000310000-0x0000000000396000-memory.dmp	coreccc

ReZer0 packer 1 IoCs

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

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1272-57-0x0000000004720000-0x0000000004776000-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:

PRODUCTS NEEDED (CN).exe

description pid process target process

PID 1272 set thread context of 1596 1272 PRODUCTS NEEDED (CN).exe RegSvcs.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegSvcs.exe

pid process

1596 RegSvcs.exe
1596 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 1596 RegSvcs.exe

description	pid	process	target process
PID 1272 set thread context of 1596	1272	PRODUCTS NEEDED (CN).exe	RegSvcs.exe

pid	process
1596	RegSvcs.exe
1596	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1596	RegSvcs.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

PRODUCTS NEEDED (CN).exe

description	pid	process	target process
PID 1272 wrote to memory of 1596	1272	PRODUCTS NEEDED (CN).exe	RegSvcs.exe
PID 1272 wrote to memory of 1596	1272	PRODUCTS NEEDED (CN).exe	RegSvcs.exe
PID 1272 wrote to memory of 1596	1272	PRODUCTS NEEDED (CN).exe	RegSvcs.exe
PID 1272 wrote to memory of 1596	1272	PRODUCTS NEEDED (CN).exe	RegSvcs.exe
PID 1272 wrote to memory of 1596	1272	PRODUCTS NEEDED (CN).exe	RegSvcs.exe
PID 1272 wrote to memory of 1596	1272	PRODUCTS NEEDED (CN).exe	RegSvcs.exe
PID 1272 wrote to memory of 1596	1272	PRODUCTS NEEDED (CN).exe	RegSvcs.exe
PID 1272 wrote to memory of 1596	1272	PRODUCTS NEEDED (CN).exe	RegSvcs.exe
PID 1272 wrote to memory of 1596	1272	PRODUCTS NEEDED (CN).exe	RegSvcs.exe
PID 1272 wrote to memory of 1596	1272	PRODUCTS NEEDED (CN).exe	RegSvcs.exe
PID 1272 wrote to memory of 1596	1272	PRODUCTS NEEDED (CN).exe	RegSvcs.exe
PID 1272 wrote to memory of 1596	1272	PRODUCTS NEEDED (CN).exe	RegSvcs.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\PRODUCTS NEEDED (CN).exe
"C:\Users\Admin\AppData\Local\Temp\PRODUCTS NEEDED (CN).exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1272

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1596

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1272-54-0x0000000000310000-0x0000000000396000-memory.dmp

Filesize
536KB

Download
memory/1272-55-0x0000000076171000-0x0000000076173000-memory.dmp

Filesize
8KB

Download
memory/1272-56-0x0000000000520000-0x0000000000528000-memory.dmp

Filesize
32KB

Download
memory/1272-57-0x0000000004720000-0x0000000004776000-memory.dmp

Filesize
344KB

Download
memory/1596-58-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1596-59-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1596-61-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1596-62-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1596-63-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1596-64-0x0000000000449EEE-mapping.dmp

Download
memory/1596-66-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1596-68-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads