Malware Analysis Report

2024-11-13 14:21

Sample ID 240617-va4jcawcpf
Target z27FACTURA09654700.BAT.exe
SHA256 b772162c5b510c5427be045abfdc43c29756217e2ed924ce4c4388bd457a4987
Tags
agenttesla keylogger spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

b772162c5b510c5427be045abfdc43c29756217e2ed924ce4c4388bd457a4987

Threat Level: Known bad

The file z27FACTURA09654700.BAT.exe was found to be: Known bad.

Malicious Activity Summary

agenttesla keylogger spyware stealer trojan

AgentTesla

Loads dropped DLL

Drops startup file

Executes dropped EXE

Looks up external IP address via web service

AutoIT Executable

Suspicious use of SetThreadContext

Unsigned PE

Program crash

Suspicious use of AdjustPrivilegeToken

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-17 16:48

Signatures

AutoIT Executable

Description Indicator Process Target
N/A N/A N/A N/A

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-17 16:48

Reported

2024-06-17 16:50

Platform

win10v2004-20240611-en

Max time kernel

90s

Max time network

143s

Command Line

"C:\Users\Admin\AppData\Local\Temp\z27FACTURA09654700.BAT.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\corynteria.vbs C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ip-api.com N/A N/A

AutoIT Executable

Description Indicator Process Target
N/A N/A N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4344 set thread context of 1664 N/A C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\z27FACTURA09654700.BAT.exe

"C:\Users\Admin\AppData\Local\Temp\z27FACTURA09654700.BAT.exe"

C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe

"C:\Users\Admin\AppData\Local\Temp\z27FACTURA09654700.BAT.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

"C:\Users\Admin\AppData\Local\Temp\z27FACTURA09654700.BAT.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
BE 23.41.178.82:443 www.bing.com tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 82.178.41.23.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 ip-api.com udp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 1.112.95.208.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 24.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp

Files

memory/3620-10-0x0000000002870000-0x0000000002874000-memory.dmp

C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe

MD5 aed00ff3e85dbf1bbf99939966939b3a
SHA1 d02a5bc420207a7958e34a4740968439969f5b19
SHA256 b772162c5b510c5427be045abfdc43c29756217e2ed924ce4c4388bd457a4987
SHA512 08ad4f11a67a9e8228d83e96fbcccd98910d53ff2929e2d70d336b8e808d4d7e37f90d157e2747b744eb19b451aba2a0985022207a68ff50dcbd8cdef5e1f50a

C:\Users\Admin\AppData\Local\Temp\prophetesses

MD5 9ba42eb54f59dbd92ea3603a8ce31beb
SHA1 63a08b907e72b79b4781848aa25f76bdaf3103d9
SHA256 06d40c1d942dc7d5827d4098943c1d9088a47bda344cd79275f7c8518d390bc9
SHA512 791fe6f2de331e0edfb1068c67fa051bc5e60540018c264aa609321a83d64c6bff97e3e96d3d598c7f7a0967087f09d22a0c282dfad1be34033e4f2ebc7d1e58

C:\Users\Admin\AppData\Local\Temp\benting

MD5 00370753943d9a11be05b9d18ee97197
SHA1 1555b2a50202f4f46fa796277c269fe3d8cb90fa
SHA256 a1f5563609a0d55bf813d88b864cdef5ea91c0012de215db73e4f72428596a75
SHA512 4d42176734391d746d2b6df9c8b2e293e9bcbd49a5cd0fc1be8c7ae36def70b0740dbe1dbf88406f65937a1eaf8dedd9897a5f365d15a67f365b780ce40a2bc7

memory/1664-28-0x00000000001B0000-0x00000000001F2000-memory.dmp

memory/1664-29-0x000000007476E000-0x000000007476F000-memory.dmp

memory/1664-30-0x0000000005150000-0x00000000056F4000-memory.dmp

memory/1664-31-0x0000000004C10000-0x0000000004C76000-memory.dmp

memory/1664-32-0x0000000074760000-0x0000000074F10000-memory.dmp

memory/1664-33-0x0000000005F40000-0x0000000005F90000-memory.dmp

memory/1664-34-0x0000000006030000-0x00000000060C2000-memory.dmp

memory/1664-35-0x0000000005FB0000-0x0000000005FBA000-memory.dmp

memory/1664-36-0x000000007476E000-0x000000007476F000-memory.dmp

memory/1664-37-0x0000000074760000-0x0000000074F10000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-17 16:48

Reported

2024-06-17 16:50

Platform

win7-20231129-en

Max time kernel

119s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\z27FACTURA09654700.BAT.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\corynteria.vbs C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ip-api.com N/A N/A

AutoIT Executable

Description Indicator Process Target
N/A N/A N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1388 set thread context of 1212 N/A C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1908 wrote to memory of 1388 N/A C:\Users\Admin\AppData\Local\Temp\z27FACTURA09654700.BAT.exe C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe
PID 1908 wrote to memory of 1388 N/A C:\Users\Admin\AppData\Local\Temp\z27FACTURA09654700.BAT.exe C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe
PID 1908 wrote to memory of 1388 N/A C:\Users\Admin\AppData\Local\Temp\z27FACTURA09654700.BAT.exe C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe
PID 1908 wrote to memory of 1388 N/A C:\Users\Admin\AppData\Local\Temp\z27FACTURA09654700.BAT.exe C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe
PID 1388 wrote to memory of 1212 N/A C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 1388 wrote to memory of 1212 N/A C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 1388 wrote to memory of 1212 N/A C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 1388 wrote to memory of 1212 N/A C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 1388 wrote to memory of 1212 N/A C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 1388 wrote to memory of 1212 N/A C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 1388 wrote to memory of 1212 N/A C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 1388 wrote to memory of 1212 N/A C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 1388 wrote to memory of 2992 N/A C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe C:\Windows\SysWOW64\WerFault.exe
PID 1388 wrote to memory of 2992 N/A C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe C:\Windows\SysWOW64\WerFault.exe
PID 1388 wrote to memory of 2992 N/A C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe C:\Windows\SysWOW64\WerFault.exe
PID 1388 wrote to memory of 2992 N/A C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\z27FACTURA09654700.BAT.exe

"C:\Users\Admin\AppData\Local\Temp\z27FACTURA09654700.BAT.exe"

C:\Users\Admin\AppData\Local\obtenebrate\corynteria.exe

"C:\Users\Admin\AppData\Local\Temp\z27FACTURA09654700.BAT.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

"C:\Users\Admin\AppData\Local\Temp\z27FACTURA09654700.BAT.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1388 -s 320

Network

Country Destination Domain Proto
US 8.8.8.8:53 ip-api.com udp
US 208.95.112.1:80 ip-api.com tcp

Files

memory/1908-10-0x0000000000120000-0x0000000000124000-memory.dmp

\Users\Admin\AppData\Local\obtenebrate\corynteria.exe

MD5 aed00ff3e85dbf1bbf99939966939b3a
SHA1 d02a5bc420207a7958e34a4740968439969f5b19
SHA256 b772162c5b510c5427be045abfdc43c29756217e2ed924ce4c4388bd457a4987
SHA512 08ad4f11a67a9e8228d83e96fbcccd98910d53ff2929e2d70d336b8e808d4d7e37f90d157e2747b744eb19b451aba2a0985022207a68ff50dcbd8cdef5e1f50a

C:\Users\Admin\AppData\Local\Temp\benting

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

memory/1212-30-0x0000000000400000-0x0000000000442000-memory.dmp

memory/1212-33-0x0000000000400000-0x0000000000442000-memory.dmp

memory/1212-34-0x0000000000400000-0x0000000000442000-memory.dmp

memory/1212-39-0x0000000073BCE000-0x0000000073BCF000-memory.dmp

memory/1212-41-0x0000000073BC0000-0x00000000742AE000-memory.dmp

memory/1212-42-0x0000000073BCE000-0x0000000073BCF000-memory.dmp

memory/1212-43-0x0000000073BC0000-0x00000000742AE000-memory.dmp