3264d09d3a398417226b7d346c2fc4757ffa445373763e2d7c2f18ef6edb2354

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-10-2024 17:21

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General

Target

Night_uac/amsi.ps1
Size

1KB
MD5

ab586dd0a3d8dc473e8a12a5a4c6a484
SHA1

247455520a6b3706355e6afc4815fc0fbec331c4
SHA256

e4519785cbdda3fe7f85b3e0ef1bfd0bb857966dcc9fd7e62bd028b04a35cda3
SHA512

898dfc95b3016a8c8ec164ddff5b5b58aa3470802f5cc9265837dc1d4356de251fa256ff6dd130e39399ab24ebe903172dee214fc9b3e36be04d0ef654b9fb20

Score

3^/10

execution

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Using powershell.exe command.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

2300 powershell.exe

pid	process
2300	powershell.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

wermgr.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	wermgr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	wermgr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	wermgr.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

wermgr.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	wermgr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	wermgr.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

2300 powershell.exe
2300 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 2300 powershell.exe

pid	process
2300	powershell.exe
2300	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2300	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

powershell.execsc.exe

description	pid	process	target process
PID 2300 wrote to memory of 3436	2300	powershell.exe	csc.exe
PID 2300 wrote to memory of 3436	2300	powershell.exe	csc.exe
PID 3436 wrote to memory of 3248	3436	csc.exe	cvtres.exe
PID 3436 wrote to memory of 3248	3436	csc.exe	cvtres.exe
PID 2300 wrote to memory of 2736	2300	powershell.exe	wermgr.exe
PID 2300 wrote to memory of 2736	2300	powershell.exe	wermgr.exe

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\Night_uac\amsi.ps1
1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2300

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\1kgn4znx\1kgn4znx.cmdline"
2⤵
- Suspicious use of WriteProcessMemory
PID:3436

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES9AAA.tmp" "c:\Users\Admin\AppData\Local\Temp\1kgn4znx\CSCA24E535DA624FD6AB9E529C92B4EB7.TMP"
3⤵
PID:3248

C:\Windows\system32\wermgr.exe
"C:\Windows\system32\wermgr.exe" "-outproc" "0" "2300" "2164" "2116" "2168" "0" "0" "2172" "0" "0" "0" "0" "0"
2⤵
- Checks processor information in registry
- Enumerates system info in registry
PID:2736

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\1kgn4znx\1kgn4znx.dll

Filesize
3KB

MD5
774852929bd59975162f74217de4d7b9

SHA1
b839bc8019257000677a7ea1654948f2a624f33e

SHA256
8fc229c350f12732ee3e46898029b12c0a4c7ce4e759c5ab1d6be3b1836ce9f6

SHA512
fb6b54e4e53cc05e67065b43dd7ce28ab32f01a5c8ad3071e03d5cfc51477ddef90bc29460b723b93a8fd0e4232a22e99b8c27e49e9a4d7952875f424b431a35

Download Submit
C:\Users\Admin\AppData\Local\Temp\RES9AAA.tmp

Filesize
1KB

MD5
bb1e34500d9df0cc59452d5c5a4e00c0

SHA1
fa0cbeceb66b538b1640d3bbca61a5b87c28df0a

SHA256
2c5c944bd8f35b20a0a7ab222ee8d05498c0a42d2932e03e9bd0cf3fbd7bda11

SHA512
931fb5f3f51e753ac72b0ab8ea2a173f6de4c6f804facfb8ebdcbc8868814c02f329e915c6dd38c2a5ef06725aaba1c220cb57645e378013bc2e700270f26e28

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_o1m3wohf.h13.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\1kgn4znx\1kgn4znx.0.cs

Filesize
331B

MD5
885120f66ed400cb844051f3b2509cb7

SHA1
1035be96b6ba5e7ed6b5250d097ce2356ef67eae

SHA256
cceab02630d3733fc07e880a371093e9e795095817d72283d2197630a44dcc5e

SHA512
c85b4d69008954eae90f0f1ccf547c7c1f7fa1df22f08afad15aced1af7e0078e1ae82929dbb03b8a4c2b0ca9c40c813b38de532d5c34261a3f11be3196fe97b

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\1kgn4znx\1kgn4znx.cmdline

Filesize
369B

MD5
7819f0b71a42a9ad1c9eb38205ecec7d

SHA1
79d5b7aad9dca5fd1db46b2c81d53bd43088a534

SHA256
0b0f4c7931edbd36b7b7bb9d9d486dfb6ed58ded3d755f821852d0de0939fb77

SHA512
345eb41db9af4abf049c64afc51b6c52d4e533c6d117f839887ed2789d9dea2eb0c884f57e118bd6b7d7f6d7cf68a313ac356aa2e00b02451105feb2af8edad9

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\1kgn4znx\CSCA24E535DA624FD6AB9E529C92B4EB7.TMP

Filesize
652B

MD5
132513abd7206a3d33e935d35ef1131e

SHA1
031722eaaa930674a67b745bcd56cfaf47178a7d

SHA256
aeb870c2a6de119f1e7e9ec900b5a373ebf960408095d5a344483c8e197dd5e8

SHA512
383cf63c24dbddfaee7d748ef8f8ebca6f8839bd28a803257c688bb2d814fb2afa7406d0c19cc458883df120e7e56356f7386caf69ebf6a62ba89bd9daea0045

Download Submit
memory/2300-0-0x00007FFB28113000-0x00007FFB28115000-memory.dmp

Filesize
8KB

Download
memory/2300-1-0x0000023ABFE50000-0x0000023ABFE72000-memory.dmp

Filesize
136KB

Download
memory/2300-11-0x00007FFB28110000-0x00007FFB28BD1000-memory.dmp

Filesize
10.8MB

Download
memory/2300-12-0x00007FFB28110000-0x00007FFB28BD1000-memory.dmp

Filesize
10.8MB

Download
memory/2300-25-0x0000023AA58E0000-0x0000023AA58E8000-memory.dmp

Filesize
32KB

Download
memory/2300-35-0x00007FFB28110000-0x00007FFB28BD1000-memory.dmp

Filesize
10.8MB

Download