nitro | 5f7c38b162bbd0cfef8dd27ab8ba47bf20f187dce05e045494956e2306995db7

Analysis

max time kernel
120s
max time network
122s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
31-12-2023 02:06

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General

Target

23e768609a0da73f7db18836ea7c8305.exe
Size

61KB
MD5

23e768609a0da73f7db18836ea7c8305
SHA1

e164494fd6d5ab908971cc1d4f24f0295ab7d400
SHA256

5f7c38b162bbd0cfef8dd27ab8ba47bf20f187dce05e045494956e2306995db7
SHA512

d1920fb5fe659d6c51fa9b1208ca7e6418f5d4a9054bd863a296e5dc049de33f5d8170cb379f7407769dfea05e29874fd22edbe5be9d0225f7b24379752c2cf5
SSDEEP

768:4KsMqCXfVcWO/M9ZkiANIUVcYLDwUzc80gmq3oP/oDi:4KseiM9ZkiAPTr/0O8/om

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 (65) 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-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\23e768609a0da73f7db18836ea7c8305.exe\""	23e768609a0da73f7db18836ea7c8305.exe

Drops desktop.ini file(s) 3 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	23e768609a0da73f7db18836ea7c8305.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	23e768609a0da73f7db18836ea7c8305.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	23e768609a0da73f7db18836ea7c8305.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

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-1-5-21-3627615824-4061627003-3019543961-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	23e768609a0da73f7db18836ea7c8305.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg"	23e768609a0da73f7db18836ea7c8305.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2380	23e768609a0da73f7db18836ea7c8305.exe
2380	23e768609a0da73f7db18836ea7c8305.exe

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: SeDebugPrivilege	2380	23e768609a0da73f7db18836ea7c8305.exe
Token: SeIncreaseQuotaPrivilege	3016	WMIC.exe
Token: SeSecurityPrivilege	3016	WMIC.exe
Token: SeTakeOwnershipPrivilege	3016	WMIC.exe
Token: SeLoadDriverPrivilege	3016	WMIC.exe
Token: SeSystemProfilePrivilege	3016	WMIC.exe
Token: SeSystemtimePrivilege	3016	WMIC.exe
Token: SeProfSingleProcessPrivilege	3016	WMIC.exe
Token: SeIncBasePriorityPrivilege	3016	WMIC.exe
Token: SeCreatePagefilePrivilege	3016	WMIC.exe
Token: SeBackupPrivilege	3016	WMIC.exe
Token: SeRestorePrivilege	3016	WMIC.exe
Token: SeShutdownPrivilege	3016	WMIC.exe
Token: SeDebugPrivilege	3016	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3016	WMIC.exe
Token: SeRemoteShutdownPrivilege	3016	WMIC.exe
Token: SeUndockPrivilege	3016	WMIC.exe
Token: SeManageVolumePrivilege	3016	WMIC.exe
Token: 33	3016	WMIC.exe
Token: 34	3016	WMIC.exe
Token: 35	3016	WMIC.exe
Token: SeIncreaseQuotaPrivilege	3016	WMIC.exe
Token: SeSecurityPrivilege	3016	WMIC.exe
Token: SeTakeOwnershipPrivilege	3016	WMIC.exe
Token: SeLoadDriverPrivilege	3016	WMIC.exe
Token: SeSystemProfilePrivilege	3016	WMIC.exe
Token: SeSystemtimePrivilege	3016	WMIC.exe
Token: SeProfSingleProcessPrivilege	3016	WMIC.exe
Token: SeIncBasePriorityPrivilege	3016	WMIC.exe
Token: SeCreatePagefilePrivilege	3016	WMIC.exe
Token: SeBackupPrivilege	3016	WMIC.exe
Token: SeRestorePrivilege	3016	WMIC.exe
Token: SeShutdownPrivilege	3016	WMIC.exe
Token: SeDebugPrivilege	3016	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3016	WMIC.exe
Token: SeRemoteShutdownPrivilege	3016	WMIC.exe
Token: SeUndockPrivilege	3016	WMIC.exe
Token: SeManageVolumePrivilege	3016	WMIC.exe
Token: 33	3016	WMIC.exe
Token: 34	3016	WMIC.exe
Token: 35	3016	WMIC.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 804	2380	23e768609a0da73f7db18836ea7c8305.exe	28
PID 2380 wrote to memory of 804	2380	23e768609a0da73f7db18836ea7c8305.exe	28
PID 2380 wrote to memory of 804	2380	23e768609a0da73f7db18836ea7c8305.exe	28
PID 2380 wrote to memory of 804	2380	23e768609a0da73f7db18836ea7c8305.exe	28
PID 804 wrote to memory of 3016	804	cmd.exe	30
PID 804 wrote to memory of 3016	804	cmd.exe	30
PID 804 wrote to memory of 3016	804	cmd.exe	30
PID 804 wrote to memory of 3016	804	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\23e768609a0da73f7db18836ea7c8305.exe
"C:\Users\Admin\AppData\Local\Temp\23e768609a0da73f7db18836ea7c8305.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:2380
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:804
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:3016

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

Web Service

T1102

Exfiltration

Impact

Defacement

T1491

Replay Monitor

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Downloads

memory/2380-0-0x0000000000ED0000-0x0000000000EE6000-memory.dmp

Filesize
88KB

Download
memory/2380-1-0x00000000748B0000-0x0000000074F9E000-memory.dmp

Filesize
6.9MB

Download
memory/2380-2-0x0000000004C50000-0x0000000004C90000-memory.dmp

Filesize
256KB

Download
memory/2380-26-0x00000000748B0000-0x0000000074F9E000-memory.dmp

Filesize
6.9MB

Download
memory/2380-35-0x0000000004C50000-0x0000000004C90000-memory.dmp

Filesize
256KB

Download
memory/2380-73-0x0000000004C50000-0x0000000004C90000-memory.dmp

Filesize
256KB

Download
memory/2380-74-0x0000000004C50000-0x0000000004C90000-memory.dmp

Filesize
256KB

Download