agenttesla | a4d16713a50b55dd68445c0d6407d67542b37eaf93efb9ff09ec435fb198848d

General

Target

New Order.exe
Size

459KB
MD5

0081ac0ee3f00f61e44cf7f127fd7d09
SHA1

cce72d90b240c678d87be6b21eb64ed72af7c8c1
SHA256

3b82d291e2fb62eac9616a46f75733d77f8d6287dfc54d834d60418cef7f717f
SHA512

427cfa24355d8a411b08897f3de0d8f88b79aa185d0fa654e0fa7ae1f13c14b67ea3403e8ad8436fc9f8ab1b2360335d18fbb26f0a0a9f70a3233cc942a49718

Score

10^/10

agenttesla collection coreentity evasion keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.fakly-cambodia.com
Port:
587
Username:
[email protected]
Password:
Mmhh#2014

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/2008-56-0x00000000003F0000-0x00000000003F8000-memory.dmp	coreentity

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1196-63-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1196-64-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1196-65-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1196-66-0x000000000044CEEE-mapping.dmp	family_agenttesla
behavioral1/memory/1196-68-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1196-70-0x0000000000400000-0x0000000000452000-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/2008-57-0x0000000000A40000-0x0000000000A9A000-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:

New Order.exe

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

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

New Order.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

New Order.exe

description pid process target process

PID 2008 set thread context of 1196 2008 New Order.exe New Order.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

1132 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

New Order.exeNew Order.exe

pid process

2008 New Order.exe
1196 New Order.exe
1196 New Order.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

New Order.exeNew Order.exe

description pid process

Token: SeDebugPrivilege 2008 New Order.exe
Token: SeDebugPrivilege 1196 New Order.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

New Order.exe

pid process

1196 New Order.exe

description	pid	process	target process
PID 2008 set thread context of 1196	2008	New Order.exe	New Order.exe

pid	process
1132	schtasks.exe

pid	process
2008	New Order.exe
1196	New Order.exe
1196	New Order.exe

description	pid	process
Token: SeDebugPrivilege	2008	New Order.exe
Token: SeDebugPrivilege	1196	New Order.exe

pid	process
1196	New Order.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

New Order.exeNew Order.exe

description	pid	process	target process
PID 2008 wrote to memory of 1132	2008	New Order.exe	schtasks.exe
PID 2008 wrote to memory of 1132	2008	New Order.exe	schtasks.exe
PID 2008 wrote to memory of 1132	2008	New Order.exe	schtasks.exe
PID 2008 wrote to memory of 1132	2008	New Order.exe	schtasks.exe
PID 2008 wrote to memory of 1196	2008	New Order.exe	New Order.exe
PID 2008 wrote to memory of 1196	2008	New Order.exe	New Order.exe
PID 2008 wrote to memory of 1196	2008	New Order.exe	New Order.exe
PID 2008 wrote to memory of 1196	2008	New Order.exe	New Order.exe
PID 2008 wrote to memory of 1196	2008	New Order.exe	New Order.exe
PID 2008 wrote to memory of 1196	2008	New Order.exe	New Order.exe
PID 2008 wrote to memory of 1196	2008	New Order.exe	New Order.exe
PID 2008 wrote to memory of 1196	2008	New Order.exe	New Order.exe
PID 2008 wrote to memory of 1196	2008	New Order.exe	New Order.exe
PID 1196 wrote to memory of 1476	1196	New Order.exe	netsh.exe
PID 1196 wrote to memory of 1476	1196	New Order.exe	netsh.exe
PID 1196 wrote to memory of 1476	1196	New Order.exe	netsh.exe
PID 1196 wrote to memory of 1476	1196	New Order.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

New Order.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	New Order.exe

outlook_win_path 1 IoCs

Processes:

New Order.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	New Order.exe

C:\Users\Admin\AppData\Local\Temp\New Order.exe
"C:\Users\Admin\AppData\Local\Temp\New Order.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:2008

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wovalImLPvB" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBDC4.tmp"
2⤵
- Creates scheduled task(s)
PID:1132

C:\Users\Admin\AppData\Local\Temp\New Order.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1196

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1476

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpBDC4.tmp
Filesize
1KB

MD5
2b565552175bce8eb6d61948d3f42d2f

SHA1
5de15de50f7f5a069942160b6691803a5ae10fb8

SHA256
0a7dde1aab8543a028b4026a4e2d0b516202429e4da31e2a06eece521d9f24b1

SHA512
410dd2b7cf8248bf2dac6a3e1c1c57c8e82dbfd7735d5197a9b2e5aec10197dd7e4106d73a0bf7eacaff837bdd5c629adf62717bd8763041b3803e547d1d3852

Download Submit
memory/1132-58-0x0000000000000000-mapping.dmp

Download
memory/1196-64-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1196-60-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1196-61-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1196-63-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1196-65-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1196-66-0x000000000044CEEE-mapping.dmp

Download
memory/1196-68-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1196-70-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1476-72-0x0000000000000000-mapping.dmp

Download
memory/2008-57-0x0000000000A40000-0x0000000000A9A000-memory.dmp

Filesize
360KB

Download
memory/2008-56-0x00000000003F0000-0x00000000003F8000-memory.dmp

Filesize
32KB

Download
memory/2008-55-0x0000000076191000-0x0000000076193000-memory.dmp

Filesize
8KB

Download
memory/2008-54-0x0000000000AF0000-0x0000000000B6A000-memory.dmp

Filesize
488KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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