agenttesla | 8a16fe712b1036662aec4735c09b0116b1c9a5d017cce061d8f0751b59b5b77f

General

Target

8a16fe712b1036662aec4735c09b0116b1c9a5d017cce061d8f0751b59b5b77f.exe
Size

897KB
MD5

e8c78d6773557dcedf689f49ba5e5d8f
SHA1

fead6b4262f6a45f4645594c466c648137ba38f1
SHA256

8a16fe712b1036662aec4735c09b0116b1c9a5d017cce061d8f0751b59b5b77f
SHA512

20b0a8f9d388742c8c972613b71f1afcb7e9f80c36538ff09b4d35add84564f82f3d453d890113d9218abe8d48f2f2aa8c8a88ff164c86b712f6d55af1e54b2c
SSDEEP

12288:TLkcoxg7v3qnC11ErwIhh0F4qwUgUnyI8jnrgskqXatMdJ8s8:nfmMv6Ckr7MnyI8jnrjZqtoJ89

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\reindulgence.vbs	reindulgence.exe

Executes dropped EXE 1 IoCs

pid	Process
4940	reindulgence.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
14	ip-api.com

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/3528-0-0x0000000000400000-0x00000000004C7000-memory.dmp	autoit_exe
behavioral2/files/0x0007000000023cb4-9.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4940 set thread context of 1332	4940	reindulgence.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	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8a16fe712b1036662aec4735c09b0116b1c9a5d017cce061d8f0751b59b5b77f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reindulgence.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1332	RegSvcs.exe
1332	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4940	reindulgence.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1332	RegSvcs.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
3528	8a16fe712b1036662aec4735c09b0116b1c9a5d017cce061d8f0751b59b5b77f.exe
3528	8a16fe712b1036662aec4735c09b0116b1c9a5d017cce061d8f0751b59b5b77f.exe
4940	reindulgence.exe
4940	reindulgence.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
3528	8a16fe712b1036662aec4735c09b0116b1c9a5d017cce061d8f0751b59b5b77f.exe
3528	8a16fe712b1036662aec4735c09b0116b1c9a5d017cce061d8f0751b59b5b77f.exe
4940	reindulgence.exe
4940	reindulgence.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3528 wrote to memory of 4940	3528	8a16fe712b1036662aec4735c09b0116b1c9a5d017cce061d8f0751b59b5b77f.exe	82
PID 3528 wrote to memory of 4940	3528	8a16fe712b1036662aec4735c09b0116b1c9a5d017cce061d8f0751b59b5b77f.exe	82
PID 3528 wrote to memory of 4940	3528	8a16fe712b1036662aec4735c09b0116b1c9a5d017cce061d8f0751b59b5b77f.exe	82
PID 4940 wrote to memory of 1332	4940	reindulgence.exe	83
PID 4940 wrote to memory of 1332	4940	reindulgence.exe	83
PID 4940 wrote to memory of 1332	4940	reindulgence.exe	83
PID 4940 wrote to memory of 1332	4940	reindulgence.exe	83

C:\Users\Admin\AppData\Local\Temp\8a16fe712b1036662aec4735c09b0116b1c9a5d017cce061d8f0751b59b5b77f.exe
"C:\Users\Admin\AppData\Local\Temp\8a16fe712b1036662aec4735c09b0116b1c9a5d017cce061d8f0751b59b5b77f.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3528
- C:\Users\Admin\AppData\Local\lecheries\reindulgence.exe
  "C:\Users\Admin\AppData\Local\Temp\8a16fe712b1036662aec4735c09b0116b1c9a5d017cce061d8f0751b59b5b77f.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:4940
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\8a16fe712b1036662aec4735c09b0116b1c9a5d017cce061d8f0751b59b5b77f.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1332

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\lecheries\reindulgence.exe

Filesize
897KB

MD5
e8c78d6773557dcedf689f49ba5e5d8f

SHA1
fead6b4262f6a45f4645594c466c648137ba38f1

SHA256
8a16fe712b1036662aec4735c09b0116b1c9a5d017cce061d8f0751b59b5b77f

SHA512
20b0a8f9d388742c8c972613b71f1afcb7e9f80c36538ff09b4d35add84564f82f3d453d890113d9218abe8d48f2f2aa8c8a88ff164c86b712f6d55af1e54b2c

Download Submit
memory/1332-21-0x00000000059E0000-0x0000000005F84000-memory.dmp

Filesize
5.6MB

Download
memory/1332-19-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1332-20-0x0000000074C7E000-0x0000000074C7F000-memory.dmp

Filesize
4KB

Download
memory/1332-22-0x0000000005530000-0x0000000005596000-memory.dmp

Filesize
408KB

Download
memory/1332-23-0x0000000074C70000-0x0000000075420000-memory.dmp

Filesize
7.7MB

Download
memory/1332-24-0x00000000067A0000-0x00000000067F0000-memory.dmp

Filesize
320KB

Download
memory/1332-25-0x0000000006890000-0x0000000006922000-memory.dmp

Filesize
584KB

Download
memory/1332-26-0x0000000006820000-0x000000000682A000-memory.dmp

Filesize
40KB

Download
memory/1332-27-0x0000000074C7E000-0x0000000074C7F000-memory.dmp

Filesize
4KB

Download
memory/1332-28-0x0000000074C70000-0x0000000075420000-memory.dmp

Filesize
7.7MB

Download
memory/3528-6-0x00000000032B0000-0x00000000032B4000-memory.dmp

Filesize
16KB

Download
memory/3528-0-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download

Analysis

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