agenttesla | b2e883d87fa1f254b672219863556f3b84459e173b45d544025b8223f611d953

General

Target

PMR#RFQ_PRICE.exe
Size

470KB
MD5

564e463d0cbe16ecccae36838683debe
SHA1

3b6e76c28b673fcc8d2378e9ae3ee7944ad9fc1c
SHA256

9fb0d4a6cb16d10fc8c584647a21530ec375abf85b5a48d7d7578ebe6dc36f27
SHA512

19c392bfc97a2cd8d6c07703ccd8c7c182a7ab5e314c60ffa086080c72f3225326648d00b990afe9ea6c7faa030d23fee85a95e32d55cb96793f6e4b13a3afdb

Score

10^/10

agenttesla collection coreentity evasion 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/776-56-0x0000000000470000-0x0000000000478000-memory.dmp	coreentity

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1484-61-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1484-62-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1484-63-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1484-64-0x000000000044ABAE-mapping.dmp	family_agenttesla
behavioral1/memory/1484-66-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1484-68-0x0000000000400000-0x0000000000450000-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/776-57-0x0000000000F90000-0x0000000000FE6000-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:

PMR#RFQ_PRICE.exe

description pid process target process

PID 776 set thread context of 1484 776 PMR#RFQ_PRICE.exe RegSvcs.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

336 REG.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegSvcs.exe

pid process

1484 RegSvcs.exe
1484 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 1484 RegSvcs.exe

description	pid	process	target process
PID 776 set thread context of 1484	776	PMR#RFQ_PRICE.exe	RegSvcs.exe

pid	process
336	REG.exe

pid	process
1484	RegSvcs.exe
1484	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1484	RegSvcs.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

PMR#RFQ_PRICE.exeRegSvcs.exe

description	pid	process	target process
PID 776 wrote to memory of 1484	776	PMR#RFQ_PRICE.exe	RegSvcs.exe
PID 776 wrote to memory of 1484	776	PMR#RFQ_PRICE.exe	RegSvcs.exe
PID 776 wrote to memory of 1484	776	PMR#RFQ_PRICE.exe	RegSvcs.exe
PID 776 wrote to memory of 1484	776	PMR#RFQ_PRICE.exe	RegSvcs.exe
PID 776 wrote to memory of 1484	776	PMR#RFQ_PRICE.exe	RegSvcs.exe
PID 776 wrote to memory of 1484	776	PMR#RFQ_PRICE.exe	RegSvcs.exe
PID 776 wrote to memory of 1484	776	PMR#RFQ_PRICE.exe	RegSvcs.exe
PID 776 wrote to memory of 1484	776	PMR#RFQ_PRICE.exe	RegSvcs.exe
PID 776 wrote to memory of 1484	776	PMR#RFQ_PRICE.exe	RegSvcs.exe
PID 776 wrote to memory of 1484	776	PMR#RFQ_PRICE.exe	RegSvcs.exe
PID 776 wrote to memory of 1484	776	PMR#RFQ_PRICE.exe	RegSvcs.exe
PID 776 wrote to memory of 1484	776	PMR#RFQ_PRICE.exe	RegSvcs.exe
PID 1484 wrote to memory of 336	1484	RegSvcs.exe	REG.exe
PID 1484 wrote to memory of 336	1484	RegSvcs.exe	REG.exe
PID 1484 wrote to memory of 336	1484	RegSvcs.exe	REG.exe
PID 1484 wrote to memory of 336	1484	RegSvcs.exe	REG.exe
PID 1484 wrote to memory of 1712	1484	RegSvcs.exe	netsh.exe
PID 1484 wrote to memory of 1712	1484	RegSvcs.exe	netsh.exe
PID 1484 wrote to memory of 1712	1484	RegSvcs.exe	netsh.exe
PID 1484 wrote to memory of 1712	1484	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\PMR#RFQ_PRICE.exe
"C:\Users\Admin\AppData\Local\Temp\PMR#RFQ_PRICE.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:776

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:1484

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:336

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1712

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/336-70-0x0000000000000000-mapping.dmp

Download
memory/776-54-0x0000000001000000-0x000000000107C000-memory.dmp

Filesize
496KB

Download
memory/776-55-0x00000000753B1000-0x00000000753B3000-memory.dmp

Filesize
8KB

Download
memory/776-56-0x0000000000470000-0x0000000000478000-memory.dmp

Filesize
32KB

Download
memory/776-57-0x0000000000F90000-0x0000000000FE6000-memory.dmp

Filesize
344KB

Download
memory/1484-61-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1484-59-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1484-62-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1484-63-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1484-64-0x000000000044ABAE-mapping.dmp

Download
memory/1484-66-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1484-68-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1484-58-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1712-71-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads