agenttesla | b77b6eb8155754d968ac6ed131147679a09b44767e695fdf96fb5b2bf4544c9b

General

Target

EmiratesNBD_swift_mt103.exe
Size

506KB
MD5

632cf515035dd389d366d9c11cd4f010
SHA1

141a9518344e636f71ba8b0ae68d0cb57aa57ed6
SHA256

2acce03be9204acbcc6fc59fa5bebc3720d91a9d7daa122c0ea086c4727fafce
SHA512

a2c4d74eda8af3b4bd16ba91c64c338cf266bed3dcd51dc0a87935ec2934933a0097cbf4587a467db7855d4f0e1e68989695de7a861936b443458f9943fa2c7f

Score

10^/10

agenttesla collection coreentity evasion keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.khokhwmeshmesh.com
Port:
587
Username:
[email protected]
Password:
hr@kmc1800066

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/1032-56-0x0000000000380000-0x0000000000388000-memory.dmp	coreentity

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1164-63-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1164-64-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1164-65-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1164-66-0x000000000044CE3E-mapping.dmp	family_agenttesla
behavioral1/memory/1164-68-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1164-70-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

ReZer0 packer 1 IoCs

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

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1032-57-0x0000000005E70000-0x0000000005ECA000-memory.dmp	rezer0

Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

EmiratesNBD_swift_mt103.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	EmiratesNBD_swift_mt103.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	EmiratesNBD_swift_mt103.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

EmiratesNBD_swift_mt103.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	EmiratesNBD_swift_mt103.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EmiratesNBD_swift_mt103.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EmiratesNBD_swift_mt103.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

EmiratesNBD_swift_mt103.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	EmiratesNBD_swift_mt103.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	EmiratesNBD_swift_mt103.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

EmiratesNBD_swift_mt103.exe

description pid process target process

PID 1032 set thread context of 1164 1032 EmiratesNBD_swift_mt103.exe EmiratesNBD_swift_mt103.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

672 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

EmiratesNBD_swift_mt103.exeEmiratesNBD_swift_mt103.exe

pid process

1032 EmiratesNBD_swift_mt103.exe
1164 EmiratesNBD_swift_mt103.exe
1164 EmiratesNBD_swift_mt103.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

EmiratesNBD_swift_mt103.exeEmiratesNBD_swift_mt103.exe

description pid process

Token: SeDebugPrivilege 1032 EmiratesNBD_swift_mt103.exe
Token: SeDebugPrivilege 1164 EmiratesNBD_swift_mt103.exe

description	pid	process	target process
PID 1032 set thread context of 1164	1032	EmiratesNBD_swift_mt103.exe	EmiratesNBD_swift_mt103.exe

pid	process
672	schtasks.exe

pid	process
1032	EmiratesNBD_swift_mt103.exe
1164	EmiratesNBD_swift_mt103.exe
1164	EmiratesNBD_swift_mt103.exe

description	pid	process
Token: SeDebugPrivilege	1032	EmiratesNBD_swift_mt103.exe
Token: SeDebugPrivilege	1164	EmiratesNBD_swift_mt103.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

EmiratesNBD_swift_mt103.exeEmiratesNBD_swift_mt103.exe

description	pid	process	target process
PID 1032 wrote to memory of 672	1032	EmiratesNBD_swift_mt103.exe	schtasks.exe
PID 1032 wrote to memory of 672	1032	EmiratesNBD_swift_mt103.exe	schtasks.exe
PID 1032 wrote to memory of 672	1032	EmiratesNBD_swift_mt103.exe	schtasks.exe
PID 1032 wrote to memory of 672	1032	EmiratesNBD_swift_mt103.exe	schtasks.exe
PID 1032 wrote to memory of 1164	1032	EmiratesNBD_swift_mt103.exe	EmiratesNBD_swift_mt103.exe
PID 1032 wrote to memory of 1164	1032	EmiratesNBD_swift_mt103.exe	EmiratesNBD_swift_mt103.exe
PID 1032 wrote to memory of 1164	1032	EmiratesNBD_swift_mt103.exe	EmiratesNBD_swift_mt103.exe
PID 1032 wrote to memory of 1164	1032	EmiratesNBD_swift_mt103.exe	EmiratesNBD_swift_mt103.exe
PID 1032 wrote to memory of 1164	1032	EmiratesNBD_swift_mt103.exe	EmiratesNBD_swift_mt103.exe
PID 1032 wrote to memory of 1164	1032	EmiratesNBD_swift_mt103.exe	EmiratesNBD_swift_mt103.exe
PID 1032 wrote to memory of 1164	1032	EmiratesNBD_swift_mt103.exe	EmiratesNBD_swift_mt103.exe
PID 1032 wrote to memory of 1164	1032	EmiratesNBD_swift_mt103.exe	EmiratesNBD_swift_mt103.exe
PID 1032 wrote to memory of 1164	1032	EmiratesNBD_swift_mt103.exe	EmiratesNBD_swift_mt103.exe
PID 1164 wrote to memory of 1296	1164	EmiratesNBD_swift_mt103.exe	netsh.exe
PID 1164 wrote to memory of 1296	1164	EmiratesNBD_swift_mt103.exe	netsh.exe
PID 1164 wrote to memory of 1296	1164	EmiratesNBD_swift_mt103.exe	netsh.exe
PID 1164 wrote to memory of 1296	1164	EmiratesNBD_swift_mt103.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

EmiratesNBD_swift_mt103.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	EmiratesNBD_swift_mt103.exe

outlook_win_path 1 IoCs

Processes:

EmiratesNBD_swift_mt103.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	EmiratesNBD_swift_mt103.exe

C:\Users\Admin\AppData\Local\Temp\EmiratesNBD_swift_mt103.exe
"C:\Users\Admin\AppData\Local\Temp\EmiratesNBD_swift_mt103.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1032

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wOjQxbwnWIlOrG" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEFDC.tmp"
2⤵
- Creates scheduled task(s)
PID:672

C:\Users\Admin\AppData\Local\Temp\EmiratesNBD_swift_mt103.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1164

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1296

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

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

3

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

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

MD5
5e3e4067c930144365d92fde56a847eb

SHA1
d9162b097a2427988c6b1bc7650759bf3c018ede

SHA256
e89e3115af2d07a62c3696d839d58bea28010b0b717e7359d3b4be384ba52cf0

SHA512
56b535663a75e81d57b940af1bd449eba65a04e33f7726d5298db7961735fef3c87db1080d635e31e4893c8bca35cee5d0ac57bd8acb9faf50374f0a97255650

Download Submit
memory/672-58-0x0000000000000000-mapping.dmp

Download
memory/1032-54-0x0000000000FC0000-0x0000000001044000-memory.dmp

Filesize
528KB

Download
memory/1032-55-0x00000000758D1000-0x00000000758D3000-memory.dmp

Filesize
8KB

Download
memory/1032-56-0x0000000000380000-0x0000000000388000-memory.dmp

Filesize
32KB

Download
memory/1032-57-0x0000000005E70000-0x0000000005ECA000-memory.dmp

Filesize
360KB

Download
memory/1164-60-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1164-61-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1164-63-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1164-64-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1164-65-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1164-66-0x000000000044CE3E-mapping.dmp

Download
memory/1164-68-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1164-70-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1296-72-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads