agenttesla | ceb1ec779efff156df9bca2e40e6f588207ea4f13a22b34195195cc5118315cf

General

Target

signed_19272.exe
Size

485KB
MD5

29fe793a432bfccb58d667ffb3b32547
SHA1

d7cce5305cb72e8f0ac1331c1178527e9936a071
SHA256

3f4d8c350538601c60ddb8393b0c70904bbb81be0b59478770730dfe7a243e76
SHA512

43cbb5ace671963742b3727407e03c223850e168b54a03ea3a48b9b51e68558e5289b1d70d994bfcc5788530fb079b7bc523f7d23a401cad734e4b00ebbe09df

Score

10^/10

agenttesla collection coreentity keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.pptoursperu.com
Port:
587
Username:
[email protected]
Password:
mailppt2019-

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/1636-57-0x0000000000690000-0x0000000000698000-memory.dmp	coreentity

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1800-62-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1800-63-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1800-64-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1800-65-0x000000000044BE5E-mapping.dmp	family_agenttesla
behavioral1/memory/1800-67-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1800-69-0x0000000000400000-0x0000000000450000-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/1636-58-0x0000000004AF0000-0x0000000004B48000-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:

signed_19272.exe

description pid process target process

PID 1636 set thread context of 1800 1636 signed_19272.exe RegSvcs.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegSvcs.exe

pid process

1800 RegSvcs.exe
1800 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 1800 RegSvcs.exe

description	pid	process	target process
PID 1636 set thread context of 1800	1636	signed_19272.exe	RegSvcs.exe

pid	process
1800	RegSvcs.exe
1800	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1800	RegSvcs.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

signed_19272.exe

description	pid	process	target process
PID 1636 wrote to memory of 1800	1636	signed_19272.exe	RegSvcs.exe
PID 1636 wrote to memory of 1800	1636	signed_19272.exe	RegSvcs.exe
PID 1636 wrote to memory of 1800	1636	signed_19272.exe	RegSvcs.exe
PID 1636 wrote to memory of 1800	1636	signed_19272.exe	RegSvcs.exe
PID 1636 wrote to memory of 1800	1636	signed_19272.exe	RegSvcs.exe
PID 1636 wrote to memory of 1800	1636	signed_19272.exe	RegSvcs.exe
PID 1636 wrote to memory of 1800	1636	signed_19272.exe	RegSvcs.exe
PID 1636 wrote to memory of 1800	1636	signed_19272.exe	RegSvcs.exe
PID 1636 wrote to memory of 1800	1636	signed_19272.exe	RegSvcs.exe
PID 1636 wrote to memory of 1800	1636	signed_19272.exe	RegSvcs.exe
PID 1636 wrote to memory of 1800	1636	signed_19272.exe	RegSvcs.exe
PID 1636 wrote to memory of 1800	1636	signed_19272.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\signed_19272.exe
"C:\Users\Admin\AppData\Local\Temp\signed_19272.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1636

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:1800

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/1636-54-0x00000000000C0000-0x0000000000140000-memory.dmp

Filesize
512KB

Download
memory/1636-55-0x00000000003A0000-0x0000000000402000-memory.dmp

Filesize
392KB

Download
memory/1636-56-0x0000000075DE1000-0x0000000075DE3000-memory.dmp

Filesize
8KB

Download
memory/1636-57-0x0000000000690000-0x0000000000698000-memory.dmp

Filesize
32KB

Download
memory/1636-58-0x0000000004AF0000-0x0000000004B48000-memory.dmp

Filesize
352KB

Download
memory/1800-59-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1800-60-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1800-62-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1800-63-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1800-64-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1800-65-0x000000000044BE5E-mapping.dmp

Download
memory/1800-67-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1800-69-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads