agenttesla | 733813587f5ab7a88aaa597563ee9e3a566bb3c4c7ad411eab6fb14c7ead28b9

General

Target

items 001.xlsm.exe
Size

859KB
MD5

fb7e94850448226bd2a498aa3b1563ea
SHA1

d700879ce59f46b7a774db6e4cb106245971e235
SHA256

2a4411192b4d6c488f67079fa17e4c245825df49a8858fadd887dd616ab1c0a3
SHA512

d43314e5e70070127c60813c026a928f5ee76fd92c94dee516adf6104b59337585fcab030e9678eb2447e67f1e9f355b7c20dc669569f8b1f164feb5dca6c631

Score

10^/10

agenttesla collection coreentity evasion keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.villanika.gr
Port:
587
Username:
info@villanika.gr
Password:
n2^-9wE@Wl}t

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

CoreEntity .NET Packer 2 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/1860-57-0x0000000000220000-0x0000000000228000-memory.dmp	coreentity
behavioral1/memory/788-98-0x0000000000380000-0x0000000000388000-memory.dmp	coreentity

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1328-103-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1328-104-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1328-105-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1328-106-0x000000000044C6EE-mapping.dmp	family_agenttesla
behavioral1/memory/1328-108-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1328-110-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

ReZer0 packer 2 IoCs

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

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1860-58-0x0000000004C30000-0x0000000004CBC000-memory.dmp	rezer0
behavioral1/memory/788-99-0x0000000005E30000-0x0000000005E88000-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-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

items 001.xlsm.exeRegSvcs.exe

description	pid	process	target process
PID 1860 set thread context of 788	1860	items 001.xlsm.exe	RegSvcs.exe
PID 788 set thread context of 1328	788	RegSvcs.exe	RegSvcs.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

1664 REG.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

RegSvcs.exeRegSvcs.exe

pid process

788 RegSvcs.exe
1328 RegSvcs.exe
1328 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

RegSvcs.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 788 RegSvcs.exe
Token: SeDebugPrivilege 1328 RegSvcs.exe

pid	process
1664	REG.exe

pid	process
788	RegSvcs.exe
1328	RegSvcs.exe
1328	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	788	RegSvcs.exe
Token: SeDebugPrivilege	1328	RegSvcs.exe

Suspicious use of WriteProcessMemory 34 IoCs

Processes:

items 001.xlsm.exeRegSvcs.exeRegSvcs.exe

description	pid	process	target process
PID 1860 wrote to memory of 788	1860	items 001.xlsm.exe	RegSvcs.exe
PID 1860 wrote to memory of 788	1860	items 001.xlsm.exe	RegSvcs.exe
PID 1860 wrote to memory of 788	1860	items 001.xlsm.exe	RegSvcs.exe
PID 1860 wrote to memory of 788	1860	items 001.xlsm.exe	RegSvcs.exe
PID 1860 wrote to memory of 788	1860	items 001.xlsm.exe	RegSvcs.exe
PID 1860 wrote to memory of 788	1860	items 001.xlsm.exe	RegSvcs.exe
PID 1860 wrote to memory of 788	1860	items 001.xlsm.exe	RegSvcs.exe
PID 1860 wrote to memory of 788	1860	items 001.xlsm.exe	RegSvcs.exe
PID 1860 wrote to memory of 788	1860	items 001.xlsm.exe	RegSvcs.exe
PID 1860 wrote to memory of 788	1860	items 001.xlsm.exe	RegSvcs.exe
PID 1860 wrote to memory of 788	1860	items 001.xlsm.exe	RegSvcs.exe
PID 1860 wrote to memory of 788	1860	items 001.xlsm.exe	RegSvcs.exe
PID 1860 wrote to memory of 788	1860	items 001.xlsm.exe	RegSvcs.exe
PID 1860 wrote to memory of 788	1860	items 001.xlsm.exe	RegSvcs.exe
PID 788 wrote to memory of 1328	788	RegSvcs.exe	RegSvcs.exe
PID 788 wrote to memory of 1328	788	RegSvcs.exe	RegSvcs.exe
PID 788 wrote to memory of 1328	788	RegSvcs.exe	RegSvcs.exe
PID 788 wrote to memory of 1328	788	RegSvcs.exe	RegSvcs.exe
PID 788 wrote to memory of 1328	788	RegSvcs.exe	RegSvcs.exe
PID 788 wrote to memory of 1328	788	RegSvcs.exe	RegSvcs.exe
PID 788 wrote to memory of 1328	788	RegSvcs.exe	RegSvcs.exe
PID 788 wrote to memory of 1328	788	RegSvcs.exe	RegSvcs.exe
PID 788 wrote to memory of 1328	788	RegSvcs.exe	RegSvcs.exe
PID 788 wrote to memory of 1328	788	RegSvcs.exe	RegSvcs.exe
PID 788 wrote to memory of 1328	788	RegSvcs.exe	RegSvcs.exe
PID 788 wrote to memory of 1328	788	RegSvcs.exe	RegSvcs.exe
PID 1328 wrote to memory of 1664	1328	RegSvcs.exe	REG.exe
PID 1328 wrote to memory of 1664	1328	RegSvcs.exe	REG.exe
PID 1328 wrote to memory of 1664	1328	RegSvcs.exe	REG.exe
PID 1328 wrote to memory of 1664	1328	RegSvcs.exe	REG.exe
PID 1328 wrote to memory of 1488	1328	RegSvcs.exe	netsh.exe
PID 1328 wrote to memory of 1488	1328	RegSvcs.exe	netsh.exe
PID 1328 wrote to memory of 1488	1328	RegSvcs.exe	netsh.exe
PID 1328 wrote to memory of 1488	1328	RegSvcs.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\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-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\items 001.xlsm.exe
"C:\Users\Admin\AppData\Local\Temp\items 001.xlsm.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1860

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:788

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
3⤵
- 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:1328

C:\Windows\SysWOW64\REG.exe
REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
4⤵
- Modifies registry key
PID:1664

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
4⤵
PID:1488

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/788-79-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/788-97-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/788-99-0x0000000005E30000-0x0000000005E88000-memory.dmp

Filesize
352KB

Download
memory/788-81-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/788-98-0x0000000000380000-0x0000000000388000-memory.dmp

Filesize
32KB

Download
memory/788-59-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/788-60-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/788-62-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/788-64-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/788-65-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/788-80-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/788-68-0x000000000048600A-mapping.dmp

Download
memory/788-94-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/788-70-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/788-72-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/788-74-0x0000000000570000-0x00000000005D2000-memory.dmp

Filesize
392KB

Download
memory/788-76-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/788-77-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/788-78-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/788-75-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/788-66-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/788-95-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/788-67-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/788-84-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/788-83-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/788-86-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/788-88-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/788-89-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/788-92-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/1328-100-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1328-106-0x000000000044C6EE-mapping.dmp

Download
memory/1328-110-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1328-103-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1328-108-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1328-105-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1328-101-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1328-104-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1488-113-0x0000000000000000-mapping.dmp

Download
memory/1664-112-0x0000000000000000-mapping.dmp

Download
memory/1860-54-0x00000000009C0000-0x0000000000A9E000-memory.dmp

Filesize
888KB

Download
memory/1860-57-0x0000000000220000-0x0000000000228000-memory.dmp

Filesize
32KB

Download
memory/1860-58-0x0000000004C30000-0x0000000004CBC000-memory.dmp

Filesize
560KB

Download
memory/1860-56-0x0000000075E41000-0x0000000075E43000-memory.dmp

Filesize
8KB

Download
memory/1860-55-0x0000000000460000-0x00000000004FE000-memory.dmp

Filesize
632KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads