agenttesla | 38328233c3257c33f13ed27c11ac0ce699433901e4cfdc5c5eb78fb823e85c7a

General

Target

Delivery Order.gz.exe
Size

947KB
MD5

f74303c9d68e259794bff9aa16accc6c
SHA1

86278bc1da358e23bc309f1f0856bb5dcaa4498c
SHA256

38328233c3257c33f13ed27c11ac0ce699433901e4cfdc5c5eb78fb823e85c7a
SHA512

965bd616cf68a9374efc9b91b66978c00961aaa4476274bbc0abf8ee930852c1a9ec327102343fbf70f428024d9790d62e2bcc98e4b8ead6277753c1d49bca4d

Score

10^/10

agenttesla evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.omfoods.in
Port:
587
Username:
[email protected]
Password:
Om@food11D

Signatures

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

AgentTesla Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/848-10-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/848-11-0x00000000004377FE-mapping.dmp	family_agenttesla
behavioral1/memory/848-13-0x0000000000400000-0x000000000043C000-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:

Delivery Order.gz.exe

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Delivery Order.gz.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\nAhOJe = "C:\\Users\\Admin\\AppData\\Roaming\\nAhOJe\\nAhOJe.exe"	Delivery Order.gz.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:

Delivery Order.gz.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

Delivery Order.gz.exe

description pid process target process

PID 1676 set thread context of 848 1676 Delivery Order.gz.exe Delivery Order.gz.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

572 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

Delivery Order.gz.exeDelivery Order.gz.exe

pid process

1676 Delivery Order.gz.exe
848 Delivery Order.gz.exe
848 Delivery Order.gz.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Delivery Order.gz.exeDelivery Order.gz.exe

description pid process

Token: SeDebugPrivilege 1676 Delivery Order.gz.exe
Token: SeDebugPrivilege 848 Delivery Order.gz.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Delivery Order.gz.exe

pid process

848 Delivery Order.gz.exe

description	pid	process	target process
PID 1676 set thread context of 848	1676	Delivery Order.gz.exe	Delivery Order.gz.exe

pid	process
572	schtasks.exe

pid	process
1676	Delivery Order.gz.exe
848	Delivery Order.gz.exe
848	Delivery Order.gz.exe

description	pid	process
Token: SeDebugPrivilege	1676	Delivery Order.gz.exe
Token: SeDebugPrivilege	848	Delivery Order.gz.exe

pid	process
848	Delivery Order.gz.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

Delivery Order.gz.exe

description	pid	process	target process
PID 1676 wrote to memory of 572	1676	Delivery Order.gz.exe	schtasks.exe
PID 1676 wrote to memory of 572	1676	Delivery Order.gz.exe	schtasks.exe
PID 1676 wrote to memory of 572	1676	Delivery Order.gz.exe	schtasks.exe
PID 1676 wrote to memory of 572	1676	Delivery Order.gz.exe	schtasks.exe
PID 1676 wrote to memory of 848	1676	Delivery Order.gz.exe	Delivery Order.gz.exe
PID 1676 wrote to memory of 848	1676	Delivery Order.gz.exe	Delivery Order.gz.exe
PID 1676 wrote to memory of 848	1676	Delivery Order.gz.exe	Delivery Order.gz.exe
PID 1676 wrote to memory of 848	1676	Delivery Order.gz.exe	Delivery Order.gz.exe
PID 1676 wrote to memory of 848	1676	Delivery Order.gz.exe	Delivery Order.gz.exe
PID 1676 wrote to memory of 848	1676	Delivery Order.gz.exe	Delivery Order.gz.exe
PID 1676 wrote to memory of 848	1676	Delivery Order.gz.exe	Delivery Order.gz.exe
PID 1676 wrote to memory of 848	1676	Delivery Order.gz.exe	Delivery Order.gz.exe
PID 1676 wrote to memory of 848	1676	Delivery Order.gz.exe	Delivery Order.gz.exe

C:\Users\Admin\AppData\Local\Temp\Delivery Order.gz.exe
"C:\Users\Admin\AppData\Local\Temp\Delivery Order.gz.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:1676

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DQuHmmSWD" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCCF0.tmp"
2⤵
- Creates scheduled task(s)
PID:572

C:\Users\Admin\AppData\Local\Temp\Delivery Order.gz.exe
"{path}"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:848

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Modify Registry

1

T1112

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

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpCCF0.tmp
MD5
3bde7cbb76a7460bb90c8097595bd9b2

SHA1
cb3aaaa60cc19b333e265cb84e8d766e26b2c5cf

SHA256
1df4a5da1f50e12891ca8dee1e0d0b7dc224a6a833b88545c0123c51c4b2894d

SHA512
2568eee01cc5f4cd6a1b5a86a7047851ad03f68368643d0bcf9512493213c12d7ed28cdb979e5c018c94f7a9df4854ce946d9ab660cbb64c1ea83a21533454da

Download Submit
memory/572-8-0x0000000000000000-mapping.dmp

Download
memory/848-12-0x00000000741A0000-0x000000007488E000-memory.dmp

Filesize
6.9MB

Download
memory/848-10-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/848-11-0x00000000004377FE-mapping.dmp

Download
memory/848-13-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/848-15-0x0000000001220000-0x0000000001221000-memory.dmp

Filesize
4KB

Download
memory/848-16-0x0000000001221000-0x0000000001222000-memory.dmp

Filesize
4KB

Download
memory/1676-6-0x0000000000450000-0x0000000000454000-memory.dmp

Filesize
16KB

Download
memory/1676-7-0x0000000000D20000-0x0000000000D7E000-memory.dmp

Filesize
376KB

Download
memory/1676-5-0x0000000007270000-0x0000000007271000-memory.dmp

Filesize
4KB

Download
memory/1676-3-0x0000000001320000-0x0000000001321000-memory.dmp

Filesize
4KB

Download
memory/1676-2-0x00000000741A0000-0x000000007488E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads