agenttesla | 4224d59d78ac65af0eab5882b25156ac12201c08d8c8068762f83f05fe96c8db

General

Target

New Order.exe
Size

595KB
MD5

12bff32155a20c5bb19a5b382ab8d8e9
SHA1

422528c91aeaa66cfc71ebc095e6a69277365156
SHA256

117ef07f45b0916e5d43168f52a5efbb756947d6aadd3389293adba4309ddc89
SHA512

51ea1708947bbf746c917bbead8fcc31890b9419eec8c74a49474c7afff1d7c201e3f0b5f4ce458d1b4cadb40f15a88f70c09e34b04976840f114dfda628515d

Score

10^/10

agenttesla collection evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.kemyo.lk
Port:
587
Username:
[email protected]
Password:
YWNZL%x)7o6r(^nPeV5qsQy^

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/592-63-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla
behavioral1/memory/592-64-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla
behavioral1/memory/592-65-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla
behavioral1/memory/592-66-0x0000000000460AAE-mapping.dmp	family_agenttesla
behavioral1/memory/592-68-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla
behavioral1/memory/592-70-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
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-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New Order.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New Order.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\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 1336 set thread context of 592 1336 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

896 schtasks.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

New Order.exeNew Order.exe

pid process

1336 New Order.exe
1336 New Order.exe
1336 New Order.exe
592 New Order.exe
592 New Order.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

New Order.exeNew Order.exe

description pid process

Token: SeDebugPrivilege 1336 New Order.exe
Token: SeDebugPrivilege 592 New Order.exe

description	pid	process	target process
PID 1336 set thread context of 592	1336	New Order.exe	New Order.exe

pid	process
896	schtasks.exe

pid	process
1336	New Order.exe
1336	New Order.exe
1336	New Order.exe
592	New Order.exe
592	New Order.exe

description	pid	process
Token: SeDebugPrivilege	1336	New Order.exe
Token: SeDebugPrivilege	592	New Order.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

New Order.exe

description	pid	process	target process
PID 1336 wrote to memory of 896	1336	New Order.exe	schtasks.exe
PID 1336 wrote to memory of 896	1336	New Order.exe	schtasks.exe
PID 1336 wrote to memory of 896	1336	New Order.exe	schtasks.exe
PID 1336 wrote to memory of 896	1336	New Order.exe	schtasks.exe
PID 1336 wrote to memory of 592	1336	New Order.exe	New Order.exe
PID 1336 wrote to memory of 592	1336	New Order.exe	New Order.exe
PID 1336 wrote to memory of 592	1336	New Order.exe	New Order.exe
PID 1336 wrote to memory of 592	1336	New Order.exe	New Order.exe
PID 1336 wrote to memory of 592	1336	New Order.exe	New Order.exe
PID 1336 wrote to memory of 592	1336	New Order.exe	New Order.exe
PID 1336 wrote to memory of 592	1336	New Order.exe	New Order.exe
PID 1336 wrote to memory of 592	1336	New Order.exe	New Order.exe
PID 1336 wrote to memory of 592	1336	New Order.exe	New Order.exe

outlook_office_path 1 IoCs

Processes:

New Order.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	New Order.exe

outlook_win_path 1 IoCs

Processes:

New Order.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	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:1336

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fEjIgGpW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8557.tmp"
2⤵
- Creates scheduled task(s)
PID:896

C:\Users\Admin\AppData\Local\Temp\New Order.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:592

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\tmp8557.tmp
Filesize
1KB

MD5
56bb9e0e96359084e321d1622c392d7f

SHA1
b447dde176324ef4bfd058312f6a2d7ce5985294

SHA256
07e5f30540d9c423b6a7c1973eec0fccea8a0b8af623bdf0bf7baa808461af70

SHA512
732cd5b58402937e5f3e0f1d41077722ac88afc3bac20af2a7350407ed474a52d9c94585abee0d7fb2e36233422c88e85f01edbf1cd50d9670feff4bd8803921

Download Submit
memory/592-64-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/592-66-0x0000000000460AAE-mapping.dmp

Download
memory/592-71-0x00000000753B1000-0x00000000753B3000-memory.dmp

Filesize
8KB

Download
memory/592-70-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/592-68-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/592-60-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/592-61-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/592-63-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/592-65-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/896-58-0x0000000000000000-mapping.dmp

Download
memory/1336-54-0x0000000000890000-0x000000000092A000-memory.dmp

Filesize
616KB

Download
memory/1336-56-0x0000000004400000-0x0000000004486000-memory.dmp

Filesize
536KB

Download
memory/1336-55-0x0000000000270000-0x000000000027A000-memory.dmp

Filesize
40KB

Download
memory/1336-57-0x0000000004BD0000-0x0000000004C52000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads