agenttesla | 684729b66bdeca51b3e40486a241ad0f2c6312fddf84b0b04a1300a8171cf658

General

Target

comprobante_swift0000099.exe
Size

826KB
MD5

4e94db0febef97c25d47b2efa4f8e5f3
SHA1

8ee81611a5fa3ba4f7c572556c4d25be98edc934
SHA256

20248a7006d2050da17a84baba48dc66149667ca24c79efbf71ceef6e10a27f5
SHA512

bafd1a65bfdb0d6425a00a0656f611ab3a152ec710604ce7ca63708bfd2bdc78ce105088e07d7361c9a657b422f3a78d6450b379a0e6425823b3e60e14eb922e
SSDEEP

12288:v6Wq4aaE6KwyF5L0Y2D1PqLekmmpS2/V12BWr1BtqpZbXPf+bj7uD9/t3RMfaMCy:tthEVaPqLampSQLAZrPuujMH

Score

10^/10

agenttesla credential_access discovery keylogger spyware stealer trojan upx

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.elquijotebanquetes.com
Port:
21
Username:
[email protected]
Password:
-GN,s*KH{VEhPmo)+f

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

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2756-0-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral1/memory/2756-10-0x0000000000400000-0x00000000004C2000-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 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/2756-10-0x0000000000400000-0x00000000004C2000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2756 set thread context of 2664	2756	comprobante_swift0000099.exe	30

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 2 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	comprobante_swift0000099.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2664	RegSvcs.exe
2664	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2756	comprobante_swift0000099.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2664	RegSvcs.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2756 wrote to memory of 2664	2756	comprobante_swift0000099.exe	30
PID 2756 wrote to memory of 2664	2756	comprobante_swift0000099.exe	30
PID 2756 wrote to memory of 2664	2756	comprobante_swift0000099.exe	30
PID 2756 wrote to memory of 2664	2756	comprobante_swift0000099.exe	30
PID 2756 wrote to memory of 2664	2756	comprobante_swift0000099.exe	30
PID 2756 wrote to memory of 2664	2756	comprobante_swift0000099.exe	30
PID 2756 wrote to memory of 2664	2756	comprobante_swift0000099.exe	30
PID 2756 wrote to memory of 2664	2756	comprobante_swift0000099.exe	30

C:\Users\Admin\AppData\Local\Temp\comprobante_swift0000099.exe
"C:\Users\Admin\AppData\Local\Temp\comprobante_swift0000099.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Users\Admin\AppData\Local\Temp\comprobante_swift0000099.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2664

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

memory/2664-4-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2664-8-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2664-6-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2664-11-0x000000007429E000-0x000000007429F000-memory.dmp

Filesize
4KB

Download
memory/2664-12-0x0000000074290000-0x000000007497E000-memory.dmp

Filesize
6.9MB

Download
memory/2664-13-0x000000007429E000-0x000000007429F000-memory.dmp

Filesize
4KB

Download
memory/2664-14-0x0000000074290000-0x000000007497E000-memory.dmp

Filesize
6.9MB

Download
memory/2756-0-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/2756-3-0x0000000003150000-0x0000000003550000-memory.dmp

Filesize
4.0MB

Download
memory/2756-10-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download

Analysis

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