agenttesla | 69f8a5c1c6cc3a38c16323205d857f376e0f8831f0fb4de555b736fd237cd646

General

Target

SOA.exe
Size

486KB
MD5

8083a9f113f6ee458ec96ae28c423ffc
SHA1

f6a0b2a4f1d86181771f1f71850a5ae682e62dc1
SHA256

286746a21e00a444f5dba54bf184545a1a8a5c5c5d813139f130ee0940d0009f
SHA512

e496fbb0afeed32c7f6f9044ae113201d17cd6bb941a4bcda53dc62fbcfff4baabfb77ba237fcc628b948a9fbc4fcdb2d12955476a2d1af8681f273a7f8dcbcc

Score

10^/10

agenttesla collection coreentity evasion keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.rajapindah.com
Port:
587
Username:
[email protected]
Password:
#r4j#citeureup#13

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/864-56-0x0000000000560000-0x0000000000568000-memory.dmp	coreentity

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1352-61-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1352-62-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1352-63-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1352-64-0x000000000044B25E-mapping.dmp	family_agenttesla
behavioral1/memory/1352-66-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1352-68-0x0000000000400000-0x0000000000450000-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/864-57-0x0000000004B80000-0x0000000004BD8000-memory.dmp	rezer0

Disables Task Manager via registry modification
evasion
Drops file in Drivers directory 1 IoCs

Processes:

RegSvcs.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	RegSvcs.exe

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:

SOA.exe

description pid process target process

PID 864 set thread context of 1352 864 SOA.exe RegSvcs.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

1460 REG.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegSvcs.exe

pid process

1352 RegSvcs.exe
1352 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 1352 RegSvcs.exe

description	pid	process	target process
PID 864 set thread context of 1352	864	SOA.exe	RegSvcs.exe

pid	process
1460	REG.exe

pid	process
1352	RegSvcs.exe
1352	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1352	RegSvcs.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

SOA.exeRegSvcs.exe

description	pid	process	target process
PID 864 wrote to memory of 1352	864	SOA.exe	RegSvcs.exe
PID 864 wrote to memory of 1352	864	SOA.exe	RegSvcs.exe
PID 864 wrote to memory of 1352	864	SOA.exe	RegSvcs.exe
PID 864 wrote to memory of 1352	864	SOA.exe	RegSvcs.exe
PID 864 wrote to memory of 1352	864	SOA.exe	RegSvcs.exe
PID 864 wrote to memory of 1352	864	SOA.exe	RegSvcs.exe
PID 864 wrote to memory of 1352	864	SOA.exe	RegSvcs.exe
PID 864 wrote to memory of 1352	864	SOA.exe	RegSvcs.exe
PID 864 wrote to memory of 1352	864	SOA.exe	RegSvcs.exe
PID 864 wrote to memory of 1352	864	SOA.exe	RegSvcs.exe
PID 864 wrote to memory of 1352	864	SOA.exe	RegSvcs.exe
PID 864 wrote to memory of 1352	864	SOA.exe	RegSvcs.exe
PID 1352 wrote to memory of 1460	1352	RegSvcs.exe	REG.exe
PID 1352 wrote to memory of 1460	1352	RegSvcs.exe	REG.exe
PID 1352 wrote to memory of 1460	1352	RegSvcs.exe	REG.exe
PID 1352 wrote to memory of 1460	1352	RegSvcs.exe	REG.exe
PID 1352 wrote to memory of 1892	1352	RegSvcs.exe	netsh.exe
PID 1352 wrote to memory of 1892	1352	RegSvcs.exe	netsh.exe
PID 1352 wrote to memory of 1892	1352	RegSvcs.exe	netsh.exe
PID 1352 wrote to memory of 1892	1352	RegSvcs.exe	netsh.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\SOA.exe
"C:\Users\Admin\AppData\Local\Temp\SOA.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:864

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1352

C:\Windows\SysWOW64\REG.exe
REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
3⤵
- Modifies registry key
PID:1460

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1892

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/864-54-0x0000000000C20000-0x0000000000CA0000-memory.dmp

Filesize
512KB

Download
memory/864-55-0x00000000755A1000-0x00000000755A3000-memory.dmp

Filesize
8KB

Download
memory/864-56-0x0000000000560000-0x0000000000568000-memory.dmp

Filesize
32KB

Download
memory/864-57-0x0000000004B80000-0x0000000004BD8000-memory.dmp

Filesize
352KB

Download
memory/1352-58-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1352-59-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1352-61-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1352-62-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1352-63-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1352-64-0x000000000044B25E-mapping.dmp

Download
memory/1352-66-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1352-68-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1460-70-0x0000000000000000-mapping.dmp

Download
memory/1892-71-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads