agenttesla | d3f412827de9746af6ee41fd134ab53734ce666f9786fec6020e73090b39d3fb

General

Target

REMITANCE ADVICE.exe
Size

719KB
MD5

de64989943967579858fe30c6c10e969
SHA1

00a162896289a64b0488d9a46bb7888bac5b7a0f
SHA256

0eb506623215bfd28e3f1b9f7f34b0fc254b0a2fe8a91f5cd0a62f26bd739169
SHA512

0df8a190958bdb15d0b000541ea31f4bcc5f1e7bb85cbe129d9438d763e5e8c9d056e4a32f33e7a42891fe1b0589e40588783a3d5ae6585057f1fbae232c42a1

Score

10^/10

agenttesla collection 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

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1784-61-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1784-63-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1784-62-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1784-64-0x000000000044ABAE-mapping.dmp	family_agenttesla
behavioral1/memory/1784-66-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1784-68-0x0000000000400000-0x0000000000450000-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/1984-57-0x0000000005030000-0x0000000005088000-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-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

REMITANCE ADVICE.exe

description pid process target process

PID 1984 set thread context of 1784 1984 REMITANCE ADVICE.exe RegSvcs.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

1176 REG.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

REMITANCE ADVICE.exeRegSvcs.exe

pid process

1984 REMITANCE ADVICE.exe
1984 REMITANCE ADVICE.exe
1784 RegSvcs.exe
1784 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

REMITANCE ADVICE.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 1984 REMITANCE ADVICE.exe
Token: SeDebugPrivilege 1784 RegSvcs.exe

description	pid	process	target process
PID 1984 set thread context of 1784	1984	REMITANCE ADVICE.exe	RegSvcs.exe

pid	process
1176	REG.exe

pid	process
1984	REMITANCE ADVICE.exe
1984	REMITANCE ADVICE.exe
1784	RegSvcs.exe
1784	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1984	REMITANCE ADVICE.exe
Token: SeDebugPrivilege	1784	RegSvcs.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

REMITANCE ADVICE.exeRegSvcs.exe

description	pid	process	target process
PID 1984 wrote to memory of 1784	1984	REMITANCE ADVICE.exe	RegSvcs.exe
PID 1984 wrote to memory of 1784	1984	REMITANCE ADVICE.exe	RegSvcs.exe
PID 1984 wrote to memory of 1784	1984	REMITANCE ADVICE.exe	RegSvcs.exe
PID 1984 wrote to memory of 1784	1984	REMITANCE ADVICE.exe	RegSvcs.exe
PID 1984 wrote to memory of 1784	1984	REMITANCE ADVICE.exe	RegSvcs.exe
PID 1984 wrote to memory of 1784	1984	REMITANCE ADVICE.exe	RegSvcs.exe
PID 1984 wrote to memory of 1784	1984	REMITANCE ADVICE.exe	RegSvcs.exe
PID 1984 wrote to memory of 1784	1984	REMITANCE ADVICE.exe	RegSvcs.exe
PID 1984 wrote to memory of 1784	1984	REMITANCE ADVICE.exe	RegSvcs.exe
PID 1984 wrote to memory of 1784	1984	REMITANCE ADVICE.exe	RegSvcs.exe
PID 1984 wrote to memory of 1784	1984	REMITANCE ADVICE.exe	RegSvcs.exe
PID 1984 wrote to memory of 1784	1984	REMITANCE ADVICE.exe	RegSvcs.exe
PID 1784 wrote to memory of 1176	1784	RegSvcs.exe	REG.exe
PID 1784 wrote to memory of 1176	1784	RegSvcs.exe	REG.exe
PID 1784 wrote to memory of 1176	1784	RegSvcs.exe	REG.exe
PID 1784 wrote to memory of 1176	1784	RegSvcs.exe	REG.exe
PID 1784 wrote to memory of 1976	1784	RegSvcs.exe	netsh.exe
PID 1784 wrote to memory of 1976	1784	RegSvcs.exe	netsh.exe
PID 1784 wrote to memory of 1976	1784	RegSvcs.exe	netsh.exe
PID 1784 wrote to memory of 1976	1784	RegSvcs.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\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-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\REMITANCE ADVICE.exe
"C:\Users\Admin\AppData\Local\Temp\REMITANCE ADVICE.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1984

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:1784

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:1176

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1976

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/1176-70-0x0000000000000000-mapping.dmp

Download
memory/1784-64-0x000000000044ABAE-mapping.dmp

Download
memory/1784-62-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1784-69-0x0000000075BF1000-0x0000000075BF3000-memory.dmp

Filesize
8KB

Download
memory/1784-58-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1784-59-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1784-61-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1784-63-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1784-68-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1784-66-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1976-71-0x0000000000000000-mapping.dmp

Download
memory/1984-54-0x0000000001090000-0x000000000114C000-memory.dmp

Filesize
752KB

Download
memory/1984-56-0x0000000000540000-0x0000000000548000-memory.dmp

Filesize
32KB

Download
memory/1984-57-0x0000000005030000-0x0000000005088000-memory.dmp

Filesize
352KB

Download
memory/1984-55-0x0000000004550000-0x00000000045B0000-memory.dmp

Filesize
384KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads