agenttesla | bd43280f9120b504c4518c8b6ab9b28af7494cd95c173b4764175630e2010c85

General

Target

FACTURA0987654567800.exe
Size

850KB
MD5

4c086ea2cf962b2584e7cc978092f414
SHA1

684a0a66447920947ce272d1db6479bac184d34b
SHA256

ca690123d14bd3632ab53a076f8bfb7bd2176248af6b735af9719aca77a024b5
SHA512

ea1aa1eb3d50c4f91d55538665cc2f32d470d6aae4b8decb14c508a67b7c8a7a8c7e02eecc7bd9553281cac21933b463bebc14046c1a48b8a9f269d27a5a13de
SSDEEP

24576:tthEVaPqLaxPrH9DZJ7jPiOrxScRujiCEj5uuv:VEVUcuZZJ7xE6v

Score

10^/10

agenttesla credential_access discovery keylogger spyware stealer trojan upx

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
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Drops startup file 1 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
2748	Glagolitic.exe

Loads dropped DLL 1 IoCs

pid	Process
2788	FACTURA0987654567800.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2788-0-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral1/files/0x000800000001658c-5.dat	upx
behavioral1/memory/2748-11-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral1/memory/2788-10-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral1/memory/2748-24-0x0000000000400000-0x00000000004C2000-memory.dmp	upx

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
2	ip-api.com

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/2788-10-0x0000000000400000-0x00000000004C2000-memory.dmp	autoit_exe
behavioral1/memory/2748-24-0x0000000000400000-0x00000000004C2000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2748 set thread context of 2760	2748	Glagolitic.exe	31

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	Glagolitic.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	FACTURA0987654567800.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2760	RegSvcs.exe
2760	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2748	Glagolitic.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2760	RegSvcs.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2788 wrote to memory of 2748	2788	FACTURA0987654567800.exe	30
PID 2788 wrote to memory of 2748	2788	FACTURA0987654567800.exe	30
PID 2788 wrote to memory of 2748	2788	FACTURA0987654567800.exe	30
PID 2788 wrote to memory of 2748	2788	FACTURA0987654567800.exe	30
PID 2748 wrote to memory of 2760	2748	Glagolitic.exe	31
PID 2748 wrote to memory of 2760	2748	Glagolitic.exe	31
PID 2748 wrote to memory of 2760	2748	Glagolitic.exe	31
PID 2748 wrote to memory of 2760	2748	Glagolitic.exe	31
PID 2748 wrote to memory of 2760	2748	Glagolitic.exe	31
PID 2748 wrote to memory of 2760	2748	Glagolitic.exe	31
PID 2748 wrote to memory of 2760	2748	Glagolitic.exe	31
PID 2748 wrote to memory of 2760	2748	Glagolitic.exe	31

C:\Users\Admin\AppData\Local\Temp\FACTURA0987654567800.exe
"C:\Users\Admin\AppData\Local\Temp\FACTURA0987654567800.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2788
- C:\Users\Admin\AppData\Local\prespecialist\Glagolitic.exe
  "C:\Users\Admin\AppData\Local\Temp\FACTURA0987654567800.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2748
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\FACTURA0987654567800.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2760

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

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\Temp\directiveness

Filesize
239KB

MD5
b49fdffa8438252950fe828a340b352a

SHA1
0b2dbe5b13cb2502db47fc641ac734d397e8c8bc

SHA256
7653bfa4c3576106d6c415cf2ba6b709b8f89dfd083faf5798a627a4e323850d

SHA512
f7be5a41484a8cda2f5c95cc9636c3313646f27f2dde16ad480e50dfce47c01c7289928386e8c5932c21ba8fa0643a1c8cac2e72e337ab13b9c9adf90d507e41

Download Submit
\Users\Admin\AppData\Local\prespecialist\Glagolitic.exe

Filesize
850KB

MD5
4c086ea2cf962b2584e7cc978092f414

SHA1
684a0a66447920947ce272d1db6479bac184d34b

SHA256
ca690123d14bd3632ab53a076f8bfb7bd2176248af6b735af9719aca77a024b5

SHA512
ea1aa1eb3d50c4f91d55538665cc2f32d470d6aae4b8decb14c508a67b7c8a7a8c7e02eecc7bd9553281cac21933b463bebc14046c1a48b8a9f269d27a5a13de

Download Submit
memory/2748-16-0x0000000003680000-0x0000000003A80000-memory.dmp

Filesize
4.0MB

Download
memory/2748-11-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/2748-24-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/2760-18-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2760-22-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2760-20-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2760-25-0x000000007462E000-0x000000007462F000-memory.dmp

Filesize
4KB

Download
memory/2760-26-0x0000000074620000-0x0000000074D0E000-memory.dmp

Filesize
6.9MB

Download
memory/2760-27-0x000000007462E000-0x000000007462F000-memory.dmp

Filesize
4KB

Download
memory/2760-28-0x0000000074620000-0x0000000074D0E000-memory.dmp

Filesize
6.9MB

Download
memory/2788-10-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/2788-3-0x0000000003F30000-0x0000000004330000-memory.dmp

Filesize
4.0MB

Download
memory/2788-0-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download

Analysis

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