nitro | e288a90f416d1938d8bb7ea68a44d0c33213b12e5b217cbaf98a62903c1f4a6c

Analysis

max time kernel
140s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
13/01/2024, 12:22

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General

Target
58e8383642bffde609ff436d8a580d5a.exe
Size 60KB
Sample240113-pj56msbad8
SHA256 e288a90f416d1938d8bb7ea68a44d0c33213b12e5b217cbaf98a62903c1f4a6c
MD5 58e8383642bffde609ff436d8a580d5a
SHA1 624d1764d2e80f2bd17521f5f1fa84c54752f01d
SHA512 7116d760e3bd8c159111de0c9855968b26a7e4a1e59b66a2c65427cc1422e2b44a861c6a8923fb33e753469eafff13f98188f48bd9063e533c92e86fc2652235
SSDEEP 768:HOucKn7n1JMDNANIUsDvLDwUzc80gmq3oP/oDt:HO2MDNAP4r/0O8/oB
MD5 SHA1 SHA512 SSDEEP

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 (87) 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\\58e8383642bffde609ff436d8a580d5a.exe\""	58e8383642bffde609ff436d8a580d5a.exe

Drops desktop.ini file(s) 5 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	58e8383642bffde609ff436d8a580d5a.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	58e8383642bffde609ff436d8a580d5a.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	58e8383642bffde609ff436d8a580d5a.exe
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\desktop.ini	58e8383642bffde609ff436d8a580d5a.exe
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	58e8383642bffde609ff436d8a580d5a.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
57	api.ipify.org
58	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"	58e8383642bffde609ff436d8a580d5a.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4028	3480	WerFault.exe	86
3344	3480	WerFault.exe	86

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3480	58e8383642bffde609ff436d8a580d5a.exe
3480	58e8383642bffde609ff436d8a580d5a.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	3480	58e8383642bffde609ff436d8a580d5a.exe
Token: SeIncreaseQuotaPrivilege	4032	WMIC.exe
Token: SeSecurityPrivilege	4032	WMIC.exe
Token: SeTakeOwnershipPrivilege	4032	WMIC.exe
Token: SeLoadDriverPrivilege	4032	WMIC.exe
Token: SeSystemProfilePrivilege	4032	WMIC.exe
Token: SeSystemtimePrivilege	4032	WMIC.exe
Token: SeProfSingleProcessPrivilege	4032	WMIC.exe
Token: SeIncBasePriorityPrivilege	4032	WMIC.exe
Token: SeCreatePagefilePrivilege	4032	WMIC.exe
Token: SeBackupPrivilege	4032	WMIC.exe
Token: SeRestorePrivilege	4032	WMIC.exe
Token: SeShutdownPrivilege	4032	WMIC.exe
Token: SeDebugPrivilege	4032	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4032	WMIC.exe
Token: SeRemoteShutdownPrivilege	4032	WMIC.exe
Token: SeUndockPrivilege	4032	WMIC.exe
Token: SeManageVolumePrivilege	4032	WMIC.exe
Token: 33	4032	WMIC.exe
Token: 34	4032	WMIC.exe
Token: 35	4032	WMIC.exe
Token: 36	4032	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4032	WMIC.exe
Token: SeSecurityPrivilege	4032	WMIC.exe
Token: SeTakeOwnershipPrivilege	4032	WMIC.exe
Token: SeLoadDriverPrivilege	4032	WMIC.exe
Token: SeSystemProfilePrivilege	4032	WMIC.exe
Token: SeSystemtimePrivilege	4032	WMIC.exe
Token: SeProfSingleProcessPrivilege	4032	WMIC.exe
Token: SeIncBasePriorityPrivilege	4032	WMIC.exe
Token: SeCreatePagefilePrivilege	4032	WMIC.exe
Token: SeBackupPrivilege	4032	WMIC.exe
Token: SeRestorePrivilege	4032	WMIC.exe
Token: SeShutdownPrivilege	4032	WMIC.exe
Token: SeDebugPrivilege	4032	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4032	WMIC.exe
Token: SeRemoteShutdownPrivilege	4032	WMIC.exe
Token: SeUndockPrivilege	4032	WMIC.exe
Token: SeManageVolumePrivilege	4032	WMIC.exe
Token: 33	4032	WMIC.exe
Token: 34	4032	WMIC.exe
Token: 35	4032	WMIC.exe
Token: 36	4032	WMIC.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3480 wrote to memory of 3312	3480	58e8383642bffde609ff436d8a580d5a.exe	95
PID 3480 wrote to memory of 3312	3480	58e8383642bffde609ff436d8a580d5a.exe	95
PID 3480 wrote to memory of 3312	3480	58e8383642bffde609ff436d8a580d5a.exe	95
PID 3312 wrote to memory of 4032	3312	cmd.exe	97
PID 3312 wrote to memory of 4032	3312	cmd.exe	97
PID 3312 wrote to memory of 4032	3312	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\58e8383642bffde609ff436d8a580d5a.exe
"C:\Users\Admin\AppData\Local\Temp\58e8383642bffde609ff436d8a580d5a.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:3480
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3312
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:4032
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3480 -s 1584
  2⤵
  - Program crash
  PID:4028
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3480 -s 1584
  2⤵
  - Program crash
  PID:3344

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3480 -ip 3480
1⤵
PID:4720

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 196 -p 3480 -ip 3480
1⤵
PID:4408

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/3480-0-0x0000000074660000-0x0000000074E10000-memory.dmp

Download

memory/3480-1-0x0000000000FE0000-0x0000000000FF6000-memory.dmp

Download

memory/3480-2-0x0000000005EC0000-0x0000000006464000-memory.dmp

Download

memory/3480-3-0x00000000059F0000-0x0000000005A82000-memory.dmp

Download

memory/3480-4-0x0000000074660000-0x0000000074E10000-memory.dmp

Download

memory/3480-5-0x0000000005C60000-0x0000000005C70000-memory.dmp

Download

memory/3480-6-0x0000000005C60000-0x0000000005C70000-memory.dmp

Download

memory/3480-96-0x0000000001790000-0x000000000179A000-memory.dmp

Download

memory/3480-97-0x0000000074660000-0x0000000074E10000-memory.dmp

Download