nitro | fd59987622ce4821e366b8d6b689c982d34ad8bb8e77e9674ad0b655b2768e82

Analysis

max time kernel
141s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
12-02-2024 21:30

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General

Target

97a6a6eb35fbd7f8f6752c42cff2d358.exe
Size

60KB
MD5

97a6a6eb35fbd7f8f6752c42cff2d358
SHA1

c9ebb02c234804a64f4dccfeaa26dae39afc9a20
SHA256

fd59987622ce4821e366b8d6b689c982d34ad8bb8e77e9674ad0b655b2768e82
SHA512

24ec0746bd8e7387cc5f1de590d98e327f7c918523a9331d8d06387db219c728538184ae98f04909699a3f8f8334f43cdb1722e5e7c9139d000013acbd7aa0a9
SSDEEP

768:nOucKn7n1J2ZDNANIUf5vLDwUzc80gmq3oP/oDk:nO22ZDNAPJr/0O8/oQ

Score

10^/10

nitro persistence ransomware spyware stealer

Malware Config

Signatures

Nitro
A ransomware that demands Discord nitro gift codes to decrypt files.
ransomware nitro
Renames multiple (90) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\97a6a6eb35fbd7f8f6752c42cff2d358.exe\""	97a6a6eb35fbd7f8f6752c42cff2d358.exe

Drops desktop.ini file(s) 5 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Documents\desktop.ini	97a6a6eb35fbd7f8f6752c42cff2d358.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	97a6a6eb35fbd7f8f6752c42cff2d358.exe
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\desktop.ini	97a6a6eb35fbd7f8f6752c42cff2d358.exe
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	97a6a6eb35fbd7f8f6752c42cff2d358.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	97a6a6eb35fbd7f8f6752c42cff2d358.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
10	api.ipify.org
11	api.ipify.org

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	97a6a6eb35fbd7f8f6752c42cff2d358.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2072	776	WerFault.exe	83
4328	776	WerFault.exe	83

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
776	97a6a6eb35fbd7f8f6752c42cff2d358.exe
776	97a6a6eb35fbd7f8f6752c42cff2d358.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	776	97a6a6eb35fbd7f8f6752c42cff2d358.exe
Token: SeIncreaseQuotaPrivilege	2620	WMIC.exe
Token: SeSecurityPrivilege	2620	WMIC.exe
Token: SeTakeOwnershipPrivilege	2620	WMIC.exe
Token: SeLoadDriverPrivilege	2620	WMIC.exe
Token: SeSystemProfilePrivilege	2620	WMIC.exe
Token: SeSystemtimePrivilege	2620	WMIC.exe
Token: SeProfSingleProcessPrivilege	2620	WMIC.exe
Token: SeIncBasePriorityPrivilege	2620	WMIC.exe
Token: SeCreatePagefilePrivilege	2620	WMIC.exe
Token: SeBackupPrivilege	2620	WMIC.exe
Token: SeRestorePrivilege	2620	WMIC.exe
Token: SeShutdownPrivilege	2620	WMIC.exe
Token: SeDebugPrivilege	2620	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2620	WMIC.exe
Token: SeRemoteShutdownPrivilege	2620	WMIC.exe
Token: SeUndockPrivilege	2620	WMIC.exe
Token: SeManageVolumePrivilege	2620	WMIC.exe
Token: 33	2620	WMIC.exe
Token: 34	2620	WMIC.exe
Token: 35	2620	WMIC.exe
Token: 36	2620	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2620	WMIC.exe
Token: SeSecurityPrivilege	2620	WMIC.exe
Token: SeTakeOwnershipPrivilege	2620	WMIC.exe
Token: SeLoadDriverPrivilege	2620	WMIC.exe
Token: SeSystemProfilePrivilege	2620	WMIC.exe
Token: SeSystemtimePrivilege	2620	WMIC.exe
Token: SeProfSingleProcessPrivilege	2620	WMIC.exe
Token: SeIncBasePriorityPrivilege	2620	WMIC.exe
Token: SeCreatePagefilePrivilege	2620	WMIC.exe
Token: SeBackupPrivilege	2620	WMIC.exe
Token: SeRestorePrivilege	2620	WMIC.exe
Token: SeShutdownPrivilege	2620	WMIC.exe
Token: SeDebugPrivilege	2620	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2620	WMIC.exe
Token: SeRemoteShutdownPrivilege	2620	WMIC.exe
Token: SeUndockPrivilege	2620	WMIC.exe
Token: SeManageVolumePrivilege	2620	WMIC.exe
Token: 33	2620	WMIC.exe
Token: 34	2620	WMIC.exe
Token: 35	2620	WMIC.exe
Token: 36	2620	WMIC.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 776 wrote to memory of 1892	776	97a6a6eb35fbd7f8f6752c42cff2d358.exe	84
PID 776 wrote to memory of 1892	776	97a6a6eb35fbd7f8f6752c42cff2d358.exe	84
PID 776 wrote to memory of 1892	776	97a6a6eb35fbd7f8f6752c42cff2d358.exe	84
PID 1892 wrote to memory of 2620	1892	cmd.exe	86
PID 1892 wrote to memory of 2620	1892	cmd.exe	86
PID 1892 wrote to memory of 2620	1892	cmd.exe	86

C:\Users\Admin\AppData\Local\Temp\97a6a6eb35fbd7f8f6752c42cff2d358.exe
"C:\Users\Admin\AppData\Local\Temp\97a6a6eb35fbd7f8f6752c42cff2d358.exe"
1⤵
- Adds Run key to start application
- Drops desktop.ini file(s)
- Sets desktop wallpaper using registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:776
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1892
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2620
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 776 -s 2196
  2⤵
  - Program crash
  PID:2072
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 776 -s 2216
  2⤵
  - Program crash
  PID:4328

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 776 -ip 776
1⤵
PID:2696

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 776 -ip 776
1⤵
PID:2964

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Defacement

T1491

Replay Monitor

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Downloads

memory/776-0-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/776-1-0x0000000000730000-0x0000000000746000-memory.dmp

Filesize
88KB

Download
memory/776-2-0x00000000055F0000-0x0000000005B94000-memory.dmp

Filesize
5.6MB

Download
memory/776-3-0x0000000005120000-0x00000000051B2000-memory.dmp

Filesize
584KB

Download
memory/776-4-0x00000000053C0000-0x00000000053D0000-memory.dmp

Filesize
64KB

Download
memory/776-34-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/776-41-0x00000000053C0000-0x00000000053D0000-memory.dmp

Filesize
64KB

Download
memory/776-99-0x0000000000CD0000-0x0000000000CDA000-memory.dmp

Filesize
40KB

Download
memory/776-100-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download