agenttesla | 6f9a61bb7b17a4cb23733695d0c74ed1dff8d0645c2ee68f74b2cd6716baacd6

General

Target

INVOICE.exe
Size

924KB
MD5

ef6a8631e2ef9254a647106872815787
SHA1

9149ed25102187a42bf8668a1b0426e1be63bc4a
SHA256

6f9a61bb7b17a4cb23733695d0c74ed1dff8d0645c2ee68f74b2cd6716baacd6
SHA512

90dad9ee231a1b6fb9d057677a76f2aebb36c5cb3224634eec88826524423cb9cc5c1bd2dc5e7792cd9de0458999306799e201166c076854a60de62fbb3fbef8
SSDEEP

12288:BiDg/A7YM21pisudT+i6Z0r7azvNvLBEet1imkRPuZb3TZj4ooHApUfrwY4p:Blppz67cvNFEU1imIq3ljfUfrwY4p

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Signatures

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

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	RegSvcs.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	INVOICE.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\KFWOdr = "C:\\Users\\Admin\\AppData\\Roaming\\KFWOdr\\KFWOdr.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1692 set thread context of 2592	1692	INVOICE.exe	94

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
3052	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1692	INVOICE.exe
2592	RegSvcs.exe
2592	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1692	INVOICE.exe
Token: SeDebugPrivilege	2592	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1692 wrote to memory of 3052	1692	INVOICE.exe	92
PID 1692 wrote to memory of 3052	1692	INVOICE.exe	92
PID 1692 wrote to memory of 3052	1692	INVOICE.exe	92
PID 1692 wrote to memory of 2592	1692	INVOICE.exe	94
PID 1692 wrote to memory of 2592	1692	INVOICE.exe	94
PID 1692 wrote to memory of 2592	1692	INVOICE.exe	94
PID 1692 wrote to memory of 2592	1692	INVOICE.exe	94
PID 1692 wrote to memory of 2592	1692	INVOICE.exe	94
PID 1692 wrote to memory of 2592	1692	INVOICE.exe	94
PID 1692 wrote to memory of 2592	1692	INVOICE.exe	94
PID 1692 wrote to memory of 2592	1692	INVOICE.exe	94

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\INVOICE.exe
"C:\Users\Admin\AppData\Local\Temp\INVOICE.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1692
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PiuhWRUjFj" /XML "C:\Users\Admin\AppData\Local\Temp\tmpED04.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3052
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.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:2592

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpED04.tmp

Filesize
1KB

MD5
1ff7a8f708d97576b5e487fc2575e29e

SHA1
99c1c7a3c7c17691e1eed89d30420224ab5ee705

SHA256
d3f523afc2b65cb3d01c16cb41fc77f208affd824409a070fd020d1546a8ca5f

SHA512
ae7a3f803f50ca2f364fce20b18ccb16ca1b30b6bd730599d9da0ba3c908dbb2f87a021e759e74f3f31c85bec92aaaab9468837f9637d3e809099d928d4f6bce

Download Submit
memory/1692-132-0x0000000000880000-0x000000000096C000-memory.dmp

Filesize
944KB

Download
memory/1692-133-0x0000000005840000-0x0000000005DE4000-memory.dmp

Filesize
5.6MB

Download
memory/1692-134-0x0000000005330000-0x00000000053C2000-memory.dmp

Filesize
584KB

Download
memory/1692-135-0x0000000005490000-0x000000000552C000-memory.dmp

Filesize
624KB

Download
memory/1692-136-0x0000000005310000-0x000000000531A000-memory.dmp

Filesize
40KB

Download
memory/2592-140-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2592-141-0x00000000062B0000-0x0000000006316000-memory.dmp

Filesize
408KB

Download
memory/2592-142-0x0000000006870000-0x00000000068C0000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads