agenttesla | c90f8b71831759ad90838a68b67b6f307810193988878a021785d99930f47b08

General

Target

BANK DETAILS.exe
Size

414KB
MD5

e31fab9d8d4a78dd347a2386bb32349f
SHA1

c9ca9f887d9d6e9de29201e203defd6bb62458c9
SHA256

786be13603b06cce80fac1349c514e29ecd2664a51f045bc5446d2f9647087ec
SHA512

3b3cd86d0067872b0375452020ecc2e3c6a9fb34a6ec741077ae5d680494b4c96fee890c57edb4cf828cb57e035ef6f0ed6683ef8c94fb1405647e10daf8ca59

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/1448-56-0x0000000000480000-0x0000000000488000-memory.dmp	coreentity

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2036-61-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/2036-62-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/2036-63-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/2036-64-0x000000000044ABAE-mapping.dmp	family_agenttesla
behavioral1/memory/2036-66-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/2036-68-0x0000000000400000-0x0000000000450000-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/1448-57-0x0000000004CA0000-0x0000000004CF6000-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:

BANK DETAILS.exe

description pid process target process

PID 1448 set thread context of 2036 1448 BANK DETAILS.exe RegSvcs.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

612 REG.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegSvcs.exe

pid process

2036 RegSvcs.exe
2036 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 2036 RegSvcs.exe

description	pid	process	target process
PID 1448 set thread context of 2036	1448	BANK DETAILS.exe	RegSvcs.exe

pid	process
612	REG.exe

pid	process
2036	RegSvcs.exe
2036	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	2036	RegSvcs.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

BANK DETAILS.exeRegSvcs.exe

description	pid	process	target process
PID 1448 wrote to memory of 2036	1448	BANK DETAILS.exe	RegSvcs.exe
PID 1448 wrote to memory of 2036	1448	BANK DETAILS.exe	RegSvcs.exe
PID 1448 wrote to memory of 2036	1448	BANK DETAILS.exe	RegSvcs.exe
PID 1448 wrote to memory of 2036	1448	BANK DETAILS.exe	RegSvcs.exe
PID 1448 wrote to memory of 2036	1448	BANK DETAILS.exe	RegSvcs.exe
PID 1448 wrote to memory of 2036	1448	BANK DETAILS.exe	RegSvcs.exe
PID 1448 wrote to memory of 2036	1448	BANK DETAILS.exe	RegSvcs.exe
PID 1448 wrote to memory of 2036	1448	BANK DETAILS.exe	RegSvcs.exe
PID 1448 wrote to memory of 2036	1448	BANK DETAILS.exe	RegSvcs.exe
PID 1448 wrote to memory of 2036	1448	BANK DETAILS.exe	RegSvcs.exe
PID 1448 wrote to memory of 2036	1448	BANK DETAILS.exe	RegSvcs.exe
PID 1448 wrote to memory of 2036	1448	BANK DETAILS.exe	RegSvcs.exe
PID 2036 wrote to memory of 612	2036	RegSvcs.exe	REG.exe
PID 2036 wrote to memory of 612	2036	RegSvcs.exe	REG.exe
PID 2036 wrote to memory of 612	2036	RegSvcs.exe	REG.exe
PID 2036 wrote to memory of 612	2036	RegSvcs.exe	REG.exe
PID 2036 wrote to memory of 1384	2036	RegSvcs.exe	netsh.exe
PID 2036 wrote to memory of 1384	2036	RegSvcs.exe	netsh.exe
PID 2036 wrote to memory of 1384	2036	RegSvcs.exe	netsh.exe
PID 2036 wrote to memory of 1384	2036	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\BANK DETAILS.exe
"C:\Users\Admin\AppData\Local\Temp\BANK DETAILS.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1448
- 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:2036
- - 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:612
- - C:\Windows\SysWOW64\netsh.exe
    "netsh" wlan show profile
    3⤵
    PID:1384

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/612-70-0x0000000000000000-mapping.dmp

Download
memory/1384-71-0x0000000000000000-mapping.dmp

Download
memory/1448-54-0x0000000000860000-0x00000000008CE000-memory.dmp

Filesize
440KB

Download
memory/1448-55-0x0000000075C51000-0x0000000075C53000-memory.dmp

Filesize
8KB

Download
memory/1448-56-0x0000000000480000-0x0000000000488000-memory.dmp

Filesize
32KB

Download
memory/1448-57-0x0000000004CA0000-0x0000000004CF6000-memory.dmp

Filesize
344KB

Download
memory/2036-61-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2036-62-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2036-63-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2036-64-0x000000000044ABAE-mapping.dmp

Download
memory/2036-66-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2036-68-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2036-59-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2036-58-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads