agenttesla | b5485fb8ae30912b3dc62020db2dedde56c1187e40db299ac99060aad2f1a9b3

General

Target

81604561456777c82c2b10e9ad4a3453.exe
Size

568KB
MD5

81604561456777c82c2b10e9ad4a3453
SHA1

b0172e65a04f431b506d76d1b8313b3a3acf4685
SHA256

b5485fb8ae30912b3dc62020db2dedde56c1187e40db299ac99060aad2f1a9b3
SHA512

2480626a40d918fb828f8913ebaab7425118b500bb23c152ec0edb80b92054c374437fccac9f2ffc03a021e5e83cb7f8ab9afb92e80900d2fd7bfa5efeb7539d
SSDEEP

12288:7Xe9PPlowWX0t6mOQwg1Qd15CcYk0We1Fwwvg5ojS/5u8B8fIfDjs:ChloDX0XOf4wN5ojS/Lc

Score

10^/10

agenttesla credential_access discovery keylogger spyware stealer trojan upx

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.solucionesmexico.mx
Port:
21
Username:
[email protected]
Password:
dGG^ZYIxX5!B

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
behavioral2/memory/940-0-0x00000000008D0000-0x0000000000A1C000-memory.dmp	upx
behavioral2/memory/940-14-0x00000000008D0000-0x0000000000A1C000-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
14	ip-api.com

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/940-14-0x00000000008D0000-0x0000000000A1C000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 940 set thread context of 3832	940	81604561456777c82c2b10e9ad4a3453.exe	86

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	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	81604561456777c82c2b10e9ad4a3453.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3832	RegSvcs.exe
3832	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
940	81604561456777c82c2b10e9ad4a3453.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3832	RegSvcs.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
940	81604561456777c82c2b10e9ad4a3453.exe
940	81604561456777c82c2b10e9ad4a3453.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
940	81604561456777c82c2b10e9ad4a3453.exe
940	81604561456777c82c2b10e9ad4a3453.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 940 wrote to memory of 3832	940	81604561456777c82c2b10e9ad4a3453.exe	86
PID 940 wrote to memory of 3832	940	81604561456777c82c2b10e9ad4a3453.exe	86
PID 940 wrote to memory of 3832	940	81604561456777c82c2b10e9ad4a3453.exe	86
PID 940 wrote to memory of 3832	940	81604561456777c82c2b10e9ad4a3453.exe	86

C:\Users\Admin\AppData\Local\Temp\81604561456777c82c2b10e9ad4a3453.exe
"C:\Users\Admin\AppData\Local\Temp\81604561456777c82c2b10e9ad4a3453.exe"
1⤵
- 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:940
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Users\Admin\AppData\Local\Temp\81604561456777c82c2b10e9ad4a3453.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3832

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/940-0-0x00000000008D0000-0x0000000000A1C000-memory.dmp

Filesize
1.3MB

Download
memory/940-14-0x00000000008D0000-0x0000000000A1C000-memory.dmp

Filesize
1.3MB

Download
memory/3832-12-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/3832-15-0x000000007397E000-0x000000007397F000-memory.dmp

Filesize
4KB

Download
memory/3832-16-0x00000000050A0000-0x0000000005644000-memory.dmp

Filesize
5.6MB

Download
memory/3832-17-0x0000000004A70000-0x0000000004AD6000-memory.dmp

Filesize
408KB

Download
memory/3832-18-0x0000000073970000-0x0000000074120000-memory.dmp

Filesize
7.7MB

Download
memory/3832-19-0x0000000005E80000-0x0000000005ED0000-memory.dmp

Filesize
320KB

Download
memory/3832-20-0x0000000005F70000-0x0000000006002000-memory.dmp

Filesize
584KB

Download
memory/3832-21-0x0000000005F00000-0x0000000005F0A000-memory.dmp

Filesize
40KB

Download
memory/3832-22-0x000000007397E000-0x000000007397F000-memory.dmp

Filesize
4KB

Download
memory/3832-23-0x0000000073970000-0x0000000074120000-memory.dmp

Filesize
7.7MB

Download

Analysis

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