agenttesla | 2f64d8f877ff01d8d60aa6b8b9b7a363b368f66d8a035af2189108fb2d7176ab

General

Target

?gnp.LB025072OP.exe
Size

531KB
MD5

e5378bc95a287b6aa4e858d850a49e05
SHA1

4649a2f12d7cf68268591d9c4a6aa7e47d8d465f
SHA256

4809230caa014763badc67dc546c2facfe4ad68787275c02e87329a28e66fcf8
SHA512

ae61c4925b39dbeece4c37dca544d1ca85daab0c677f4877948fb6eb7e9384ce5315ffd407518d61aa52ad8dfd363e186f5791f6a84818b6b87631b40baeb943

Score

10^/10

agenttesla collection coreentity keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.winhalltech.com
Port:
587
Username:
[email protected]
Password:
Hafizzul*010218

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/968-56-0x0000000000490000-0x0000000000498000-memory.dmp	coreentity

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1648-63-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1648-64-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1648-65-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1648-66-0x000000000044BFAE-mapping.dmp	family_agenttesla
behavioral1/memory/1648-68-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1648-70-0x0000000000400000-0x0000000000450000-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/968-57-0x0000000007210000-0x0000000007268000-memory.dmp	rezer0

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:

_gnp.LB025072OP.exe

description pid process target process

PID 968 set thread context of 1648 968 _gnp.LB025072OP.exe RegSvcs.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1232 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

_gnp.LB025072OP.exeRegSvcs.exe

pid process

968 _gnp.LB025072OP.exe
1648 RegSvcs.exe
1648 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

_gnp.LB025072OP.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 968 _gnp.LB025072OP.exe
Token: SeDebugPrivilege 1648 RegSvcs.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegSvcs.exe

pid process

1648 RegSvcs.exe

description	pid	process	target process
PID 968 set thread context of 1648	968	_gnp.LB025072OP.exe	RegSvcs.exe

pid	process
1232	schtasks.exe

pid	process
968	_gnp.LB025072OP.exe
1648	RegSvcs.exe
1648	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	968	_gnp.LB025072OP.exe
Token: SeDebugPrivilege	1648	RegSvcs.exe

pid	process
1648	RegSvcs.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

_gnp.LB025072OP.exe

description	pid	process	target process
PID 968 wrote to memory of 1232	968	_gnp.LB025072OP.exe	schtasks.exe
PID 968 wrote to memory of 1232	968	_gnp.LB025072OP.exe	schtasks.exe
PID 968 wrote to memory of 1232	968	_gnp.LB025072OP.exe	schtasks.exe
PID 968 wrote to memory of 1232	968	_gnp.LB025072OP.exe	schtasks.exe
PID 968 wrote to memory of 1648	968	_gnp.LB025072OP.exe	RegSvcs.exe
PID 968 wrote to memory of 1648	968	_gnp.LB025072OP.exe	RegSvcs.exe
PID 968 wrote to memory of 1648	968	_gnp.LB025072OP.exe	RegSvcs.exe
PID 968 wrote to memory of 1648	968	_gnp.LB025072OP.exe	RegSvcs.exe
PID 968 wrote to memory of 1648	968	_gnp.LB025072OP.exe	RegSvcs.exe
PID 968 wrote to memory of 1648	968	_gnp.LB025072OP.exe	RegSvcs.exe
PID 968 wrote to memory of 1648	968	_gnp.LB025072OP.exe	RegSvcs.exe
PID 968 wrote to memory of 1648	968	_gnp.LB025072OP.exe	RegSvcs.exe
PID 968 wrote to memory of 1648	968	_gnp.LB025072OP.exe	RegSvcs.exe
PID 968 wrote to memory of 1648	968	_gnp.LB025072OP.exe	RegSvcs.exe
PID 968 wrote to memory of 1648	968	_gnp.LB025072OP.exe	RegSvcs.exe
PID 968 wrote to memory of 1648	968	_gnp.LB025072OP.exe	RegSvcs.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\_gnp.LB025072OP.exe
"C:\Users\Admin\AppData\Local\Temp\_gnp.LB025072OP.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:968

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zOGlkuCrj" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3D11.tmp"
2⤵
- Creates scheduled task(s)
PID:1232

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1648

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp3D11.tmp
Filesize
1KB

MD5
d0ae1e1919059ad7d1d560ab1ae7efc3

SHA1
6ffb924f678150f3c86b27794aeaf649b6c1e5a7

SHA256
ab0cf4d7d3d077efc1a9588594c1951803351d71f47773cd39ed9cb5cfc40375

SHA512
db133c974d5016b9369c5a3a0bb1bce2ba88fa6aee404a10a766103b0d5fbe6ae4488f768afee2b318463093503ef2b625c1751b44c4cc60c2b0eab7bc61d3ce

Download Submit
memory/968-54-0x0000000000E30000-0x0000000000EBA000-memory.dmp

Filesize
552KB

Download
memory/968-55-0x0000000076451000-0x0000000076453000-memory.dmp

Filesize
8KB

Download
memory/968-56-0x0000000000490000-0x0000000000498000-memory.dmp

Filesize
32KB

Download
memory/968-57-0x0000000007210000-0x0000000007268000-memory.dmp

Filesize
352KB

Download
memory/1232-58-0x0000000000000000-mapping.dmp

Download
memory/1648-60-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1648-61-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1648-63-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1648-64-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1648-65-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1648-66-0x000000000044BFAE-mapping.dmp

Download
memory/1648-68-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1648-70-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads