agenttesla | 1fb56d650a87fbd1ed57929b7127488d189804096a033af3dfa22936662d2ea0

General

Target
NEW ORDER.exe
Size 540KB
Sample201109-r6jae3d7p2
SHA256 1fb56d650a87fbd1ed57929b7127488d189804096a033af3dfa22936662d2ea0
MD5 66adf8101a8b0c72644680476997e373
SHA1 d7b18df3f0d93f3d58fa9a790c312e3cdb41bec6
SHA512 2f03deb668d6f311ab383e6ae91c5b7bb0a9db1e292d2c16d288e3587c89885157e3c08b64d6dfa50ea3e161eb7911f192969604093a4bc0465780c532f6167c
MD5 SHA1 SHA512

Score

10^/10

agenttesla coreentity evasion keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Credentials

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

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

resource	yara_rule
behavioral2/memory/3980-7-0x0000000005C70000-0x0000000005C72000-memory.dmp	coreentity

AgentTesla Payload 2 IoCs

resource	yara_rule
behavioral2/memory/184-12-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral2/memory/184-13-0x000000000044CEEE-mapping.dmp	family_agenttesla

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

rezer0 1 IoCs

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

rezer0

resource	yara_rule
behavioral2/memory/3980-8-0x0000000007F30000-0x0000000007F83000-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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	NEW ORDER.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	NEW ORDER.exe

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

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

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

Data from Local System
T1005

Credentials in Files
T1081

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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0	NEW ORDER.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	NEW ORDER.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3980 set thread context of 184	3980	NEW ORDER.exe	79

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

pid	Process
3976	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
3980	NEW ORDER.exe
3980	NEW ORDER.exe
3980	NEW ORDER.exe
184	NEW ORDER.exe
184	NEW ORDER.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3980	NEW ORDER.exe
Token: SeDebugPrivilege	184	NEW ORDER.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
184	NEW ORDER.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 3980 wrote to memory of 3976	3980	NEW ORDER.exe	76
PID 3980 wrote to memory of 3976	3980	NEW ORDER.exe	76
PID 3980 wrote to memory of 3976	3980	NEW ORDER.exe	76
PID 3980 wrote to memory of 204	3980	NEW ORDER.exe	78
PID 3980 wrote to memory of 204	3980	NEW ORDER.exe	78
PID 3980 wrote to memory of 204	3980	NEW ORDER.exe	78
PID 3980 wrote to memory of 184	3980	NEW ORDER.exe	79
PID 3980 wrote to memory of 184	3980	NEW ORDER.exe	79
PID 3980 wrote to memory of 184	3980	NEW ORDER.exe	79
PID 3980 wrote to memory of 184	3980	NEW ORDER.exe	79
PID 3980 wrote to memory of 184	3980	NEW ORDER.exe	79
PID 3980 wrote to memory of 184	3980	NEW ORDER.exe	79
PID 3980 wrote to memory of 184	3980	NEW ORDER.exe	79
PID 3980 wrote to memory of 184	3980	NEW ORDER.exe	79
PID 184 wrote to memory of 3820	184	NEW ORDER.exe	83
PID 184 wrote to memory of 3820	184	NEW ORDER.exe	83
PID 184 wrote to memory of 3820	184	NEW ORDER.exe	83

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:3980
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PIFBiDZfh" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3D1E.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3976
- C:\Users\Admin\AppData\Local\Temp\NEW ORDER.exe
  "{path}"
  2⤵
  PID:204
- C:\Users\Admin\AppData\Local\Temp\NEW ORDER.exe
  "{path}"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:184
- - C:\Windows\SysWOW64\netsh.exe
    "netsh" wlan show profile
    3⤵
    PID:3820