Malware Analysis Report

2024-12-07 03:21

Sample ID 241112-2ydfdsshla
Target 09_deb64ed.exe
SHA256 586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7
Tags
remotehost-16465 remcos collection discovery spyware stealer rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7

Threat Level: Known bad

The file 09_deb64ed.exe was found to be: Known bad.

Malicious Activity Summary

remotehost-16465 remcos collection discovery spyware stealer rat

Remcos

Remcos family

NirSoft WebBrowserPassView

NirSoft MailPassView

Detected Nirsoft tools

Reads user/profile data of web browsers

Accesses Microsoft Outlook accounts

Suspicious use of SetThreadContext

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: MapViewOfSection

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-12 22:59

Signatures

Remcos family

remcos

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-12 22:59

Reported

2024-11-12 23:01

Platform

win7-20240903-en

Max time kernel

148s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe"

Signatures

Detected Nirsoft tools

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

NirSoft MailPassView

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

NirSoft WebBrowserPassView

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

Reads user/profile data of web browsers

spyware stealer

Accesses Microsoft Outlook accounts

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2848 wrote to memory of 2912 N/A C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe
PID 2848 wrote to memory of 2912 N/A C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe
PID 2848 wrote to memory of 2912 N/A C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe
PID 2848 wrote to memory of 2912 N/A C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe
PID 2848 wrote to memory of 2612 N/A C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe
PID 2848 wrote to memory of 2612 N/A C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe
PID 2848 wrote to memory of 2612 N/A C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe
PID 2848 wrote to memory of 2612 N/A C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe
PID 2848 wrote to memory of 2220 N/A C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe
PID 2848 wrote to memory of 2220 N/A C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe
PID 2848 wrote to memory of 2220 N/A C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe
PID 2848 wrote to memory of 2220 N/A C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe

Processes

C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe

"C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe"

C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe

C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe /stext "C:\Users\Admin\AppData\Local\Temp\pydbix"

C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe

C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe /stext "C:\Users\Admin\AppData\Local\Temp\asiujpsrd"

C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe

C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe /stext "C:\Users\Admin\AppData\Local\Temp\kunfciclrtya"

Network

Country Destination Domain Proto
US 8.8.8.8:53 rem.aaahorneswll.com udp
BG 31.13.224.230:16465 tcp
US 8.8.8.8:53 geoplugin.net udp
NL 178.237.33.50:80 geoplugin.net tcp
BG 31.13.224.230:16465 tcp
BG 31.13.224.230:16465 tcp
BG 31.13.224.230:16465 tcp

Files

memory/2612-2-0x0000000000400000-0x0000000000462000-memory.dmp

memory/2912-1-0x0000000000400000-0x0000000000478000-memory.dmp

memory/2612-8-0x0000000000400000-0x0000000000462000-memory.dmp

memory/2220-16-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2220-20-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2220-17-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2220-15-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2220-13-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2912-12-0x0000000000400000-0x0000000000478000-memory.dmp

memory/2612-11-0x0000000000400000-0x0000000000462000-memory.dmp

memory/2912-9-0x0000000000400000-0x0000000000478000-memory.dmp

memory/2912-7-0x0000000000400000-0x0000000000478000-memory.dmp

memory/2612-6-0x0000000000400000-0x0000000000462000-memory.dmp

memory/2912-4-0x0000000000400000-0x0000000000478000-memory.dmp

memory/2912-25-0x0000000000400000-0x0000000000478000-memory.dmp

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

MD5 f3b25701fe362ec84616a93a45ce9998
SHA1 d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256 b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA512 98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

memory/2612-30-0x0000000000400000-0x0000000000462000-memory.dmp

memory/2848-31-0x0000000010000000-0x0000000010019000-memory.dmp

memory/2848-35-0x0000000010000000-0x0000000010019000-memory.dmp

memory/2848-34-0x0000000010000000-0x0000000010019000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-12 22:59

Reported

2024-11-12 23:01

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

139s

Command Line

"C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe"

Signatures

Remcos

rat remcos

Remcos family

remcos

Detected Nirsoft tools

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

NirSoft MailPassView

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

NirSoft WebBrowserPassView

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

Reads user/profile data of web browsers

spyware stealer

Accesses Microsoft Outlook accounts

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe

"C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe"

C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe

C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe /stext "C:\Users\Admin\AppData\Local\Temp\dwxgzfrcgdjbmecynqmhmifx"

C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe

C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe /stext "C:\Users\Admin\AppData\Local\Temp\fydzaxcdulcgokqkebyixvzghve"

C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe

C:\Users\Admin\AppData\Local\Temp\09_deb64ed.exe /stext "C:\Users\Admin\AppData\Local\Temp\ptijaquxitukyzmonelkaauxqjomfy"

Network

Country Destination Domain Proto
US 8.8.8.8:53 rem.aaahorneswll.com udp
BG 31.13.224.230:16465 tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 geoplugin.net udp
NL 178.237.33.50:80 geoplugin.net tcp
BG 31.13.224.230:16465 tcp
US 8.8.8.8:53 230.224.13.31.in-addr.arpa udp
US 8.8.8.8:53 50.33.237.178.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
BG 31.13.224.230:16465 tcp
BG 31.13.224.230:16465 tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 75.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp

Files

memory/1876-1-0x0000000000400000-0x0000000000478000-memory.dmp

memory/4552-3-0x0000000000400000-0x0000000000462000-memory.dmp

memory/3556-5-0x0000000000400000-0x0000000000424000-memory.dmp

memory/1876-4-0x0000000000400000-0x0000000000478000-memory.dmp

memory/1876-8-0x0000000000400000-0x0000000000478000-memory.dmp

memory/4552-7-0x0000000000400000-0x0000000000462000-memory.dmp

memory/4552-17-0x0000000000400000-0x0000000000462000-memory.dmp

memory/1876-16-0x0000000000400000-0x0000000000478000-memory.dmp

memory/3556-15-0x0000000000400000-0x0000000000424000-memory.dmp

memory/4552-14-0x0000000000400000-0x0000000000462000-memory.dmp

memory/3556-13-0x0000000000400000-0x0000000000424000-memory.dmp

memory/3556-11-0x0000000000400000-0x0000000000424000-memory.dmp

memory/4552-10-0x0000000000400000-0x0000000000462000-memory.dmp

memory/3556-12-0x0000000000400000-0x0000000000424000-memory.dmp

memory/3556-24-0x0000000000400000-0x0000000000424000-memory.dmp

memory/3556-22-0x0000000000430000-0x00000000004F9000-memory.dmp

memory/1876-26-0x0000000000400000-0x0000000000478000-memory.dmp

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

MD5 60a0bdc1cf495566ff810105d728af4a
SHA1 243403c535f37a1f3d5f307fc3fb8bdd5cbcf6e6
SHA256 fd12da9f9b031f9fa742fa73bbb2c9265f84f49069b7c503e512427b93bce6d2
SHA512 4445f214dbf5a01d703f22a848b56866f3f37b399de503f99d40448dc86459bf49d1fa487231f23c080a559017d72bcd9f6c13562e1f0bd53c1c9a89e73306a5

memory/4248-29-0x0000000010000000-0x0000000010019000-memory.dmp

memory/4248-33-0x0000000010000000-0x0000000010019000-memory.dmp

memory/4248-34-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4248-32-0x0000000010000000-0x0000000010019000-memory.dmp

memory/4248-35-0x0000000000400000-0x0000000000482000-memory.dmp