agenttesla | 403c6000e18a07af09302916198f8c5a97026be5e617a447e58d5bd685e84456

General

Target

pymt receipt 001.exe
Size

461KB
MD5

6ac28e32390868adb3399e5332e77a2d
SHA1

73b73cf43572e1b416ee6f610a24e035e6574ec0
SHA256

3f9bad2b998ec7429ea897361105af0a53f30bcc3535fd6af5abc65387899552
SHA512

846cc7c9135630523fdff2ef2eb638bbd52cf30cf3c9b79ec462572b655d501186453ca9b8f9bfc7bec033534da1a15ee7a47a472ce495e667ba61eb9ffd83f7

Score

10^/10

agenttesla collection coreentity keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
7*noaCk_l6G+

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/1684-56-0x0000000000430000-0x0000000000438000-memory.dmp	coreentity

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1840-61-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1840-62-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1840-64-0x000000000044938E-mapping.dmp	family_agenttesla
behavioral1/memory/1840-63-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1840-66-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1840-68-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla

ReZer0 packer 1 IoCs

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

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1684-57-0x0000000004720000-0x0000000004776000-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-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

pymt receipt 001.exe

description pid process target process

PID 1684 set thread context of 1840 1684 pymt receipt 001.exe RegSvcs.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegSvcs.exe

pid process

1840 RegSvcs.exe
1840 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 1840 RegSvcs.exe

description	pid	process	target process
PID 1684 set thread context of 1840	1684	pymt receipt 001.exe	RegSvcs.exe

pid	process
1840	RegSvcs.exe
1840	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1840	RegSvcs.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

pymt receipt 001.exe

description	pid	process	target process
PID 1684 wrote to memory of 1840	1684	pymt receipt 001.exe	RegSvcs.exe
PID 1684 wrote to memory of 1840	1684	pymt receipt 001.exe	RegSvcs.exe
PID 1684 wrote to memory of 1840	1684	pymt receipt 001.exe	RegSvcs.exe
PID 1684 wrote to memory of 1840	1684	pymt receipt 001.exe	RegSvcs.exe
PID 1684 wrote to memory of 1840	1684	pymt receipt 001.exe	RegSvcs.exe
PID 1684 wrote to memory of 1840	1684	pymt receipt 001.exe	RegSvcs.exe
PID 1684 wrote to memory of 1840	1684	pymt receipt 001.exe	RegSvcs.exe
PID 1684 wrote to memory of 1840	1684	pymt receipt 001.exe	RegSvcs.exe
PID 1684 wrote to memory of 1840	1684	pymt receipt 001.exe	RegSvcs.exe
PID 1684 wrote to memory of 1840	1684	pymt receipt 001.exe	RegSvcs.exe
PID 1684 wrote to memory of 1840	1684	pymt receipt 001.exe	RegSvcs.exe
PID 1684 wrote to memory of 1840	1684	pymt receipt 001.exe	RegSvcs.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\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-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\pymt receipt 001.exe
"C:\Users\Admin\AppData\Local\Temp\pymt receipt 001.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1684

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:1840

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/1684-54-0x00000000001F0000-0x000000000026A000-memory.dmp

Filesize
488KB

Download
memory/1684-55-0x0000000074F91000-0x0000000074F93000-memory.dmp

Filesize
8KB

Download
memory/1684-56-0x0000000000430000-0x0000000000438000-memory.dmp

Filesize
32KB

Download
memory/1684-57-0x0000000004720000-0x0000000004776000-memory.dmp

Filesize
344KB

Download
memory/1840-58-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1840-59-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1840-61-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1840-62-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1840-64-0x000000000044938E-mapping.dmp

Download
memory/1840-63-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1840-66-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1840-68-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads