agenttesla | 0eb506623215bfd28e3f1b9f7f34b0fc254b0a2fe8a91f5cd0a62f26bd739169

General

Target
REMITANCE ADVICE.exe
Size 719KB
Sample201109-fa1d9ve786
SHA256 0eb506623215bfd28e3f1b9f7f34b0fc254b0a2fe8a91f5cd0a62f26bd739169
MD5 de64989943967579858fe30c6c10e969
SHA1 00a162896289a64b0488d9a46bb7888bac5b7a0f
SHA512 0df8a190958bdb15d0b000541ea31f4bcc5f1e7bb85cbe129d9438d763e5e8c9d056e4a32f33e7a42891fe1b0589e40588783a3d5ae6585057f1fbae232c42a1
MD5 SHA1 SHA512

Score

10^/10

agenttesla 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 4 IoCs

resource	yara_rule
behavioral1/memory/1600-8-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1600-9-0x000000000044ABAE-mapping.dmp	family_agenttesla
behavioral1/memory/1600-10-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1600-11-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla

rezer0 1 IoCs

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

rezer0

resource	yara_rule
behavioral1/memory/764-7-0x0000000000770000-0x00000000007C2000-memory.dmp	rezer0

Disables Task Manager via registry modification
evasion

Drops file in Drivers directory 1 IoCs

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 764 set thread context of 1600	764	REMITANCE ADVICE.exe	29

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
584	REG.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
764	REMITANCE ADVICE.exe
764	REMITANCE ADVICE.exe
764	REMITANCE ADVICE.exe
1600	RegSvcs.exe
1600	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	764	REMITANCE ADVICE.exe
Token: SeDebugPrivilege	1600	RegSvcs.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 764 wrote to memory of 1600	764	REMITANCE ADVICE.exe	29
PID 764 wrote to memory of 1600	764	REMITANCE ADVICE.exe	29
PID 764 wrote to memory of 1600	764	REMITANCE ADVICE.exe	29
PID 764 wrote to memory of 1600	764	REMITANCE ADVICE.exe	29
PID 764 wrote to memory of 1600	764	REMITANCE ADVICE.exe	29
PID 764 wrote to memory of 1600	764	REMITANCE ADVICE.exe	29
PID 764 wrote to memory of 1600	764	REMITANCE ADVICE.exe	29
PID 764 wrote to memory of 1600	764	REMITANCE ADVICE.exe	29
PID 764 wrote to memory of 1600	764	REMITANCE ADVICE.exe	29
PID 764 wrote to memory of 1600	764	REMITANCE ADVICE.exe	29
PID 764 wrote to memory of 1600	764	REMITANCE ADVICE.exe	29
PID 764 wrote to memory of 1600	764	REMITANCE ADVICE.exe	29
PID 1600 wrote to memory of 584	1600	RegSvcs.exe	31
PID 1600 wrote to memory of 584	1600	RegSvcs.exe	31
PID 1600 wrote to memory of 584	1600	RegSvcs.exe	31
PID 1600 wrote to memory of 584	1600	RegSvcs.exe	31
PID 1600 wrote to memory of 640	1600	RegSvcs.exe	33
PID 1600 wrote to memory of 640	1600	RegSvcs.exe	33
PID 1600 wrote to memory of 640	1600	RegSvcs.exe	33
PID 1600 wrote to memory of 640	1600	RegSvcs.exe	33

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:764
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - Drops file in Drivers directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1600
- - 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:584
- - C:\Windows\SysWOW64\netsh.exe
    "netsh" wlan show profile
    3⤵
    PID:640

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/764-0-0x00000000749D0000-0x00000000750BE000-memory.dmp

Download

memory/764-1-0x0000000000270000-0x0000000000271000-memory.dmp

Download

memory/764-3-0x00000000004B0000-0x000000000050C000-memory.dmp

Download

memory/764-6-0x00000000005A0000-0x00000000005A3000-memory.dmp

Download

memory/764-7-0x0000000000770000-0x00000000007C2000-memory.dmp

Download

memory/1600-8-0x0000000000400000-0x0000000000450000-memory.dmp

Download

memory/1600-10-0x0000000000400000-0x0000000000450000-memory.dmp

Download

memory/1600-11-0x0000000000400000-0x0000000000450000-memory.dmp

Download

memory/1600-12-0x00000000749D0000-0x00000000750BE000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads