agenttesla | a47b0a1c00799396c4b7b3df67dde47e2518c0657d634333f5c5c3e4cb6f7662

General

Target

a47b0a1c00799396c4b7b3df67dde47e2518c0657d634333f5c5c3e4cb6f7662.exe
Size

860KB
MD5

4eca898bf9412c9bdad5c4f648c42edb
SHA1

b9992977ecb115e8469a752398c3bf2f520c50a2
SHA256

a47b0a1c00799396c4b7b3df67dde47e2518c0657d634333f5c5c3e4cb6f7662
SHA512

d881ca213a5763f0cd55f8479ded38658d39002431427b3ae0359bc72131b3d3840f75c10fe620213144a0ecdfd3f2e17fd3acca6cd665b8e097587e1bc32de3
SSDEEP

24576:/RmJkcoQricOIQxiZY1WNy7RxKdCij1IN:UJZoQrbTFZY1WNyCC21IN

Score

10^/10

agenttesla discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.antoniomayol.com:21
Port:
21
Username:
[email protected]
Password:
cMhKDQUk1{;%

Signatures

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

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\vaccinatory.vbs	vaccinatory.exe

Executes dropped EXE 1 IoCs

pid	Process
3832	vaccinatory.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
12	ip-api.com

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/1396-0-0x0000000000400000-0x00000000004B5000-memory.dmp	autoit_exe
behavioral2/files/0x000a000000023b99-10.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3832 set thread context of 1856	3832	vaccinatory.exe	83

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a47b0a1c00799396c4b7b3df67dde47e2518c0657d634333f5c5c3e4cb6f7662.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vaccinatory.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1856	RegSvcs.exe
1856	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3832	vaccinatory.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1856	RegSvcs.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1396	a47b0a1c00799396c4b7b3df67dde47e2518c0657d634333f5c5c3e4cb6f7662.exe
1396	a47b0a1c00799396c4b7b3df67dde47e2518c0657d634333f5c5c3e4cb6f7662.exe
3832	vaccinatory.exe
3832	vaccinatory.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1396	a47b0a1c00799396c4b7b3df67dde47e2518c0657d634333f5c5c3e4cb6f7662.exe
1396	a47b0a1c00799396c4b7b3df67dde47e2518c0657d634333f5c5c3e4cb6f7662.exe
3832	vaccinatory.exe
3832	vaccinatory.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1396 wrote to memory of 3832	1396	a47b0a1c00799396c4b7b3df67dde47e2518c0657d634333f5c5c3e4cb6f7662.exe	82
PID 1396 wrote to memory of 3832	1396	a47b0a1c00799396c4b7b3df67dde47e2518c0657d634333f5c5c3e4cb6f7662.exe	82
PID 1396 wrote to memory of 3832	1396	a47b0a1c00799396c4b7b3df67dde47e2518c0657d634333f5c5c3e4cb6f7662.exe	82
PID 3832 wrote to memory of 1856	3832	vaccinatory.exe	83
PID 3832 wrote to memory of 1856	3832	vaccinatory.exe	83
PID 3832 wrote to memory of 1856	3832	vaccinatory.exe	83
PID 3832 wrote to memory of 1856	3832	vaccinatory.exe	83

C:\Users\Admin\AppData\Local\Temp\a47b0a1c00799396c4b7b3df67dde47e2518c0657d634333f5c5c3e4cb6f7662.exe
"C:\Users\Admin\AppData\Local\Temp\a47b0a1c00799396c4b7b3df67dde47e2518c0657d634333f5c5c3e4cb6f7662.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1396
- C:\Users\Admin\AppData\Local\turbinals\vaccinatory.exe
  "C:\Users\Admin\AppData\Local\Temp\a47b0a1c00799396c4b7b3df67dde47e2518c0657d634333f5c5c3e4cb6f7662.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:3832
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\a47b0a1c00799396c4b7b3df67dde47e2518c0657d634333f5c5c3e4cb6f7662.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1856

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\turbinals\vaccinatory.exe

Filesize
860KB

MD5
4eca898bf9412c9bdad5c4f648c42edb

SHA1
b9992977ecb115e8469a752398c3bf2f520c50a2

SHA256
a47b0a1c00799396c4b7b3df67dde47e2518c0657d634333f5c5c3e4cb6f7662

SHA512
d881ca213a5763f0cd55f8479ded38658d39002431427b3ae0359bc72131b3d3840f75c10fe620213144a0ecdfd3f2e17fd3acca6cd665b8e097587e1bc32de3

Download Submit
memory/1396-0-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1396-7-0x0000000004100000-0x0000000004300000-memory.dmp

Filesize
2.0MB

Download
memory/1856-23-0x000000007474E000-0x000000007474F000-memory.dmp

Filesize
4KB

Download
memory/1856-22-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1856-24-0x0000000005890000-0x0000000005E34000-memory.dmp

Filesize
5.6MB

Download
memory/1856-25-0x0000000005350000-0x00000000053B6000-memory.dmp

Filesize
408KB

Download
memory/1856-26-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/1856-27-0x00000000064E0000-0x0000000006530000-memory.dmp

Filesize
320KB

Download
memory/1856-28-0x00000000065D0000-0x0000000006662000-memory.dmp

Filesize
584KB

Download
memory/1856-29-0x0000000006560000-0x000000000656A000-memory.dmp

Filesize
40KB

Download
memory/1856-30-0x000000007474E000-0x000000007474F000-memory.dmp

Filesize
4KB

Download
memory/1856-31-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/3832-20-0x0000000002F30000-0x0000000003030000-memory.dmp

Filesize
1024KB

Download

Analysis

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