nitro | fd59987622ce4821e366b8d6b689c982d34ad8bb8e77e9674ad0b655b2768e82

Analysis

max time kernel
119s
max time network
124s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-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 (101) 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-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\97a6a6eb35fbd7f8f6752c42cff2d358.exe\""	97a6a6eb35fbd7f8f6752c42cff2d358.exe

Drops desktop.ini file(s) 3 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	97a6a6eb35fbd7f8f6752c42cff2d358.exe
File opened for modification	C:\Users\Admin\Documents\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
4	api.ipify.org
5	api.ipify.org

Sets desktop wallpaper using registry 2 TTPs 2 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	97a6a6eb35fbd7f8f6752c42cff2d358.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg"	97a6a6eb35fbd7f8f6752c42cff2d358.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1452	97a6a6eb35fbd7f8f6752c42cff2d358.exe
1452	97a6a6eb35fbd7f8f6752c42cff2d358.exe

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: SeDebugPrivilege	1452	97a6a6eb35fbd7f8f6752c42cff2d358.exe
Token: SeIncreaseQuotaPrivilege	2668	WMIC.exe
Token: SeSecurityPrivilege	2668	WMIC.exe
Token: SeTakeOwnershipPrivilege	2668	WMIC.exe
Token: SeLoadDriverPrivilege	2668	WMIC.exe
Token: SeSystemProfilePrivilege	2668	WMIC.exe
Token: SeSystemtimePrivilege	2668	WMIC.exe
Token: SeProfSingleProcessPrivilege	2668	WMIC.exe
Token: SeIncBasePriorityPrivilege	2668	WMIC.exe
Token: SeCreatePagefilePrivilege	2668	WMIC.exe
Token: SeBackupPrivilege	2668	WMIC.exe
Token: SeRestorePrivilege	2668	WMIC.exe
Token: SeShutdownPrivilege	2668	WMIC.exe
Token: SeDebugPrivilege	2668	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2668	WMIC.exe
Token: SeRemoteShutdownPrivilege	2668	WMIC.exe
Token: SeUndockPrivilege	2668	WMIC.exe
Token: SeManageVolumePrivilege	2668	WMIC.exe
Token: 33	2668	WMIC.exe
Token: 34	2668	WMIC.exe
Token: 35	2668	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2668	WMIC.exe
Token: SeSecurityPrivilege	2668	WMIC.exe
Token: SeTakeOwnershipPrivilege	2668	WMIC.exe
Token: SeLoadDriverPrivilege	2668	WMIC.exe
Token: SeSystemProfilePrivilege	2668	WMIC.exe
Token: SeSystemtimePrivilege	2668	WMIC.exe
Token: SeProfSingleProcessPrivilege	2668	WMIC.exe
Token: SeIncBasePriorityPrivilege	2668	WMIC.exe
Token: SeCreatePagefilePrivilege	2668	WMIC.exe
Token: SeBackupPrivilege	2668	WMIC.exe
Token: SeRestorePrivilege	2668	WMIC.exe
Token: SeShutdownPrivilege	2668	WMIC.exe
Token: SeDebugPrivilege	2668	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2668	WMIC.exe
Token: SeRemoteShutdownPrivilege	2668	WMIC.exe
Token: SeUndockPrivilege	2668	WMIC.exe
Token: SeManageVolumePrivilege	2668	WMIC.exe
Token: 33	2668	WMIC.exe
Token: 34	2668	WMIC.exe
Token: 35	2668	WMIC.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1452 wrote to memory of 2400	1452	97a6a6eb35fbd7f8f6752c42cff2d358.exe	28
PID 1452 wrote to memory of 2400	1452	97a6a6eb35fbd7f8f6752c42cff2d358.exe	28
PID 1452 wrote to memory of 2400	1452	97a6a6eb35fbd7f8f6752c42cff2d358.exe	28
PID 1452 wrote to memory of 2400	1452	97a6a6eb35fbd7f8f6752c42cff2d358.exe	28
PID 2400 wrote to memory of 2668	2400	cmd.exe	30
PID 2400 wrote to memory of 2668	2400	cmd.exe	30
PID 2400 wrote to memory of 2668	2400	cmd.exe	30
PID 2400 wrote to memory of 2668	2400	cmd.exe	30

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:1452
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2400
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2668

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/1452-0-0x0000000000A70000-0x0000000000A86000-memory.dmp

Filesize
88KB

Download
memory/1452-1-0x0000000074570000-0x0000000074C5E000-memory.dmp

Filesize
6.9MB

Download
memory/1452-2-0x0000000004AC0000-0x0000000004B00000-memory.dmp

Filesize
256KB

Download
memory/1452-24-0x0000000074570000-0x0000000074C5E000-memory.dmp

Filesize
6.9MB

Download
memory/1452-28-0x0000000004AC0000-0x0000000004B00000-memory.dmp

Filesize
256KB

Download
memory/1452-109-0x0000000004AC0000-0x0000000004B00000-memory.dmp

Filesize
256KB

Download
memory/1452-110-0x0000000004AC0000-0x0000000004B00000-memory.dmp

Filesize
256KB

Download