Malware Analysis Report

2025-04-14 05:12

Sample ID 250104-lyk78swpgm
Target 81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe
SHA256 81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8df
Tags
revengerat discovery stealer trojan upx
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

81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8df

Threat Level: Known bad

The file 81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe was found to be: Known bad.

Malicious Activity Summary

revengerat discovery stealer trojan upx

Revengerat family

RevengeRAT

RevengeRat Executable

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

UPX packed file

AutoIT Executable

Unsigned PE

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of SendNotifyMessage

Suspicious use of SetWindowsHookEx

Suspicious use of FindShellTrayWindow

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-04 09:56

Signatures

AutoIT Executable

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

UPX packed file

upx
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: behavioral1

Detonation Overview

Submitted

2025-01-04 09:56

Reported

2025-01-04 09:58

Platform

win7-20240903-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe"

Signatures

RevengeRAT

trojan revengerat

Revengerat family

revengerat

RevengeRat Executable

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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\DMR\dmr_72.exe N/A

AutoIT Executable

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

UPX packed file

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

Enumerates physical storage devices

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\81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Nls\Language C:\Users\Admin\AppData\Local\Temp\81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Nls\Language\InstallLanguage C:\Users\Admin\AppData\Local\Temp\81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\DMR\dmr_72.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\DMR\dmr_72.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DMR\dmr_72.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe

"C:\Users\Admin\AppData\Local\Temp\81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe"

C:\Users\Admin\AppData\Local\Temp\DMR\dmr_72.exe

"C:\Users\Admin\AppData\Local\Temp\DMR\dmr_72.exe" -install -54458834 -chipderedesign -30b3a4f7f5aa457aa22c7c289e14df87 - -BLUB2 -hkoqpgvhdmjybysc -1048

Network

Country Destination Domain Proto
US 8.8.8.8:53 api.chip-secured-download.de udp
DE 116.203.169.158:80 api.chip-secured-download.de tcp
US 8.8.8.8:53 ocs2.chdi-server.de udp
DE 116.203.169.153:80 ocs2.chdi-server.de tcp

Files

memory/1048-0-0x00000000000F0000-0x00000000003E9000-memory.dmp

\Users\Admin\AppData\Local\Temp\DMR\dmr_72.exe

MD5 25bbe781403dbd685377647a982df817
SHA1 5b5ea2f5cec496f99d245a68c884c09f5849e037
SHA256 ca718f45191351cdda8ed5ca2c8074c899d32837dd019d325c72e4123b5edbfc
SHA512 595644e2542194371d2f3acb27932717464aa9b6e661bc71e5058b8189a433cd1938b49a9c3f241c3a6a675e93cfed97b336a125e2437358a37b0fb6f9714aa2

memory/2260-16-0x000007FEF5493000-0x000007FEF5494000-memory.dmp

memory/2260-17-0x0000000000100000-0x0000000000182000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\DMR\hkoqpgvhdmjybysc.dat

MD5 a33b52a6f0de169aa48c8cad63a9bb68
SHA1 9f0ea39425fc5006543255becb8a96e46972aab8
SHA256 80920af8710cb61b7764b31328d550b3dd9b5aa817b083477983ff9eda016549
SHA512 88042f7771ac76c937fdf5448312f261d5fd28e1d26497d8aa2b2ded1884e41b7bf66a875097173c45b736f8940b124cfb635ca7d4ccb31beff4dae900fadaee

memory/2260-19-0x000007FEF5490000-0x000007FEF5E7C000-memory.dmp

memory/2260-20-0x000007FEF5490000-0x000007FEF5E7C000-memory.dmp

memory/2260-22-0x000007FEF5490000-0x000007FEF5E7C000-memory.dmp

memory/2260-21-0x000007FEF5490000-0x000007FEF5E7C000-memory.dmp

memory/1048-23-0x00000000000F0000-0x00000000003E9000-memory.dmp

memory/2260-24-0x000007FEF5490000-0x000007FEF5E7C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-04 09:56

Reported

2025-01-04 09:58

Platform

win10v2004-20241007-en

Max time kernel

93s

Max time network

96s

Command Line

"C:\Users\Admin\AppData\Local\Temp\81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe"

Signatures

RevengeRAT

trojan revengerat

Revengerat family

revengerat

RevengeRat Executable

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\DMR\dmr_72.exe N/A

AutoIT Executable

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

UPX packed file

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

Enumerates physical storage devices

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\81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Nls\Language C:\Users\Admin\AppData\Local\Temp\81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Nls\Language\InstallLanguage C:\Users\Admin\AppData\Local\Temp\81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\DMR\dmr_72.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\DMR\dmr_72.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DMR\dmr_72.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe

"C:\Users\Admin\AppData\Local\Temp\81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe"

C:\Users\Admin\AppData\Local\Temp\DMR\dmr_72.exe

"C:\Users\Admin\AppData\Local\Temp\DMR\dmr_72.exe" -install -54458834 -chipderedesign -30b3a4f7f5aa457aa22c7c289e14df87 - -BLUB2 -rxglnupbozqoosyk -5060

Network

Country Destination Domain Proto
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 86.49.80.91.in-addr.arpa udp
US 8.8.8.8:53 api.chip-secured-download.de udp
DE 116.203.169.158:80 api.chip-secured-download.de tcp
US 8.8.8.8:53 ocs2.chdi-server.de udp
DE 116.203.169.153:8080 ocs2.chdi-server.de tcp
US 8.8.8.8:53 158.169.203.116.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 153.169.203.116.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 167.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 20.49.80.91.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp

Files

memory/5060-0-0x00000000004D0000-0x00000000007C9000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\DMR\dmr_72.exe

MD5 25bbe781403dbd685377647a982df817
SHA1 5b5ea2f5cec496f99d245a68c884c09f5849e037
SHA256 ca718f45191351cdda8ed5ca2c8074c899d32837dd019d325c72e4123b5edbfc
SHA512 595644e2542194371d2f3acb27932717464aa9b6e661bc71e5058b8189a433cd1938b49a9c3f241c3a6a675e93cfed97b336a125e2437358a37b0fb6f9714aa2

memory/3632-13-0x00007FFFCD2F3000-0x00007FFFCD2F5000-memory.dmp

memory/3632-14-0x0000000000C20000-0x0000000000CA2000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\DMR\rxglnupbozqoosyk.dat

MD5 a33b52a6f0de169aa48c8cad63a9bb68
SHA1 9f0ea39425fc5006543255becb8a96e46972aab8
SHA256 80920af8710cb61b7764b31328d550b3dd9b5aa817b083477983ff9eda016549
SHA512 88042f7771ac76c937fdf5448312f261d5fd28e1d26497d8aa2b2ded1884e41b7bf66a875097173c45b736f8940b124cfb635ca7d4ccb31beff4dae900fadaee

memory/3632-16-0x00007FFFCD2F0000-0x00007FFFCDDB1000-memory.dmp

memory/3632-17-0x00007FFFCD2F0000-0x00007FFFCDDB1000-memory.dmp

memory/3632-18-0x00007FFFCD2F0000-0x00007FFFCDDB1000-memory.dmp

memory/5060-19-0x00000000004D0000-0x00000000007C9000-memory.dmp

memory/3632-21-0x000000001DFD0000-0x000000001E727000-memory.dmp

memory/3632-22-0x00007FFFCD2F0000-0x00007FFFCDDB1000-memory.dmp