agenttesla | dc6ec612a3647aa1c29469710570837f1bab7e1e5e0f3fd0f6dd0a261c4c331a

General

Target

Purchase Order.exe
Size

1.2MB
MD5

25187e1348ce3471f3ac3b620edb3a63
SHA1

2193f4d5aa0a9e00dbbb8bdf2d40176adb5070c6
SHA256

dc6ec612a3647aa1c29469710570837f1bab7e1e5e0f3fd0f6dd0a261c4c331a
SHA512

7ee5f366b82bda3275fef09f254fab380c2cfef6c545fac5667b54b54d767f5a33c2bb0cf7a0ba6e2296a6d3381645511734f8bfa193edcaa21f8d0e23ef22b2

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.vivaldi.net
Port:
587
Username:
[email protected]
Password:
Password1000

Signatures

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

AgentTesla Payload 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2088-128-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/2088-129-0x00000000004376CE-mapping.dmp	family_agenttesla
behavioral2/memory/2088-134-0x0000000005650000-0x0000000005B4E000-memory.dmp	family_agenttesla
behavioral2/memory/2088-139-0x0000000005650000-0x0000000005B4E000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

Purchase Order.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts Purchase 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

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	Purchase Order.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

Purchase Order.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase Order.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase Order.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase Order.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Purchase Order.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\tKZVPq = "C:\\Users\\Admin\\AppData\\Roaming\\tKZVPq\\tKZVPq.exe"	Purchase Order.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Purchase Order.exe

description pid process target process

PID 2720 set thread context of 2088 2720 Purchase Order.exe Purchase 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

3456 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Purchase Order.exePurchase Order.exe

pid process

2720 Purchase Order.exe
2720 Purchase Order.exe
2088 Purchase Order.exe
2088 Purchase Order.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Purchase Order.exePurchase Order.exe

description pid process

Token: SeDebugPrivilege 2720 Purchase Order.exe
Token: SeDebugPrivilege 2088 Purchase Order.exe

description	pid	process	target process
PID 2720 set thread context of 2088	2720	Purchase Order.exe	Purchase Order.exe

pid	process
3456	schtasks.exe

pid	process
2720	Purchase Order.exe
2720	Purchase Order.exe
2088	Purchase Order.exe
2088	Purchase Order.exe

description	pid	process
Token: SeDebugPrivilege	2720	Purchase Order.exe
Token: SeDebugPrivilege	2088	Purchase Order.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

Purchase Order.exe

description	pid	process	target process
PID 2720 wrote to memory of 3456	2720	Purchase Order.exe	schtasks.exe
PID 2720 wrote to memory of 3456	2720	Purchase Order.exe	schtasks.exe
PID 2720 wrote to memory of 3456	2720	Purchase Order.exe	schtasks.exe
PID 2720 wrote to memory of 2852	2720	Purchase Order.exe	Purchase Order.exe
PID 2720 wrote to memory of 2852	2720	Purchase Order.exe	Purchase Order.exe
PID 2720 wrote to memory of 2852	2720	Purchase Order.exe	Purchase Order.exe
PID 2720 wrote to memory of 2088	2720	Purchase Order.exe	Purchase Order.exe
PID 2720 wrote to memory of 2088	2720	Purchase Order.exe	Purchase Order.exe
PID 2720 wrote to memory of 2088	2720	Purchase Order.exe	Purchase Order.exe
PID 2720 wrote to memory of 2088	2720	Purchase Order.exe	Purchase Order.exe
PID 2720 wrote to memory of 2088	2720	Purchase Order.exe	Purchase Order.exe
PID 2720 wrote to memory of 2088	2720	Purchase Order.exe	Purchase Order.exe
PID 2720 wrote to memory of 2088	2720	Purchase Order.exe	Purchase Order.exe
PID 2720 wrote to memory of 2088	2720	Purchase Order.exe	Purchase Order.exe

outlook_office_path 1 IoCs

Processes:

Purchase Order.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase Order.exe

outlook_win_path 1 IoCs

Processes:

Purchase Order.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase Order.exe

C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2720

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TYXWjGGnfmxrXp" /XML "C:\Users\Admin\AppData\Local\Temp\tmp67AF.tmp"
2⤵
- Creates scheduled task(s)
PID:3456

C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
"{path}"
2⤵
PID:2852

C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2088

Network

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

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

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\tmp67AF.tmp
MD5
4329480a6ed38489cdaeecabb57a212a

SHA1
a808ddfc0b70b9edcef2dfae05dd0f08e2d16c31

SHA256
5a8878102d7e80f273b2b332b7733692041c6e9f6090eb8f7c42ac4c1df41f39

SHA512
332ee6bf488685399cd69ab0a501fa492ffefb8db1ae7f6044fd5ec648c832c2ec0a802f80887ff9015a969a3c432f0c2edadb99ce51932902ba7f124976f169

Download Submit
memory/2088-139-0x0000000005650000-0x0000000005B4E000-memory.dmp

Filesize
5.0MB

Download
memory/2088-136-0x0000000006340000-0x0000000006341000-memory.dmp

Filesize
4KB

Download
memory/2088-135-0x0000000005AB0000-0x0000000005AB1000-memory.dmp

Filesize
4KB

Download
memory/2088-134-0x0000000005650000-0x0000000005B4E000-memory.dmp

Filesize
5.0MB

Download
memory/2088-129-0x00000000004376CE-mapping.dmp

Download
memory/2088-128-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2720-120-0x0000000004D20000-0x0000000004D21000-memory.dmp

Filesize
4KB

Download
memory/2720-124-0x000000000C950000-0x000000000C9D0000-memory.dmp

Filesize
512KB

Download
memory/2720-125-0x000000000D9D0000-0x000000000DA08000-memory.dmp

Filesize
224KB

Download
memory/2720-123-0x00000000047F0000-0x00000000047FE000-memory.dmp

Filesize
56KB

Download
memory/2720-122-0x0000000004E40000-0x000000000533E000-memory.dmp

Filesize
5.0MB

Download
memory/2720-121-0x0000000005050000-0x0000000005051000-memory.dmp

Filesize
4KB

Download
memory/2720-115-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2720-119-0x0000000004E40000-0x0000000004E41000-memory.dmp

Filesize
4KB

Download
memory/2720-118-0x0000000005340000-0x0000000005341000-memory.dmp

Filesize
4KB

Download
memory/2720-117-0x0000000004D70000-0x0000000004D71000-memory.dmp

Filesize
4KB

Download
memory/3456-126-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads