nitro | 07b087b1e455c0efabcb704ba89195b9f3b0eaa81e232cafeca3c1822ed8ee91

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
30-12-2023 22:16

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General

Target

1e3623db60060f182ce3d37907e2350e.exe
Size

60KB
MD5

1e3623db60060f182ce3d37907e2350e
SHA1

b94c22c40c149b9265ec56f91f38ef080e5a5bfd
SHA256

07b087b1e455c0efabcb704ba89195b9f3b0eaa81e232cafeca3c1822ed8ee91
SHA512

51bbad2af84929de2e58a7fc187f5507c91590f8abcf1af146d975f353d185bdcafd573e64ae030eb9e459416d291d41701d5bfce508b20ceb776940cde68140
SSDEEP

768:wOucKn7n1JGDNANIU+svLDwUzc80gmq3oP/oDjs:wO2GDNAPrr/0O8/oPs

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 (66) 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-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\1e3623db60060f182ce3d37907e2350e.exe\""	1e3623db60060f182ce3d37907e2350e.exe

Drops desktop.ini file(s) 5 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Documents\desktop.ini	1e3623db60060f182ce3d37907e2350e.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	1e3623db60060f182ce3d37907e2350e.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	1e3623db60060f182ce3d37907e2350e.exe
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\desktop.ini	1e3623db60060f182ce3d37907e2350e.exe
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	1e3623db60060f182ce3d37907e2350e.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 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	1e3623db60060f182ce3d37907e2350e.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1920	3912	WerFault.exe	14
3988	3912	WerFault.exe	14

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3912	1e3623db60060f182ce3d37907e2350e.exe
3912	1e3623db60060f182ce3d37907e2350e.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	3912	1e3623db60060f182ce3d37907e2350e.exe
Token: SeIncreaseQuotaPrivilege	3008	WMIC.exe
Token: SeSecurityPrivilege	3008	WMIC.exe
Token: SeTakeOwnershipPrivilege	3008	WMIC.exe
Token: SeLoadDriverPrivilege	3008	WMIC.exe
Token: SeSystemProfilePrivilege	3008	WMIC.exe
Token: SeSystemtimePrivilege	3008	WMIC.exe
Token: SeProfSingleProcessPrivilege	3008	WMIC.exe
Token: SeIncBasePriorityPrivilege	3008	WMIC.exe
Token: SeCreatePagefilePrivilege	3008	WMIC.exe
Token: SeBackupPrivilege	3008	WMIC.exe
Token: SeRestorePrivilege	3008	WMIC.exe
Token: SeShutdownPrivilege	3008	WMIC.exe
Token: SeDebugPrivilege	3008	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3008	WMIC.exe
Token: SeRemoteShutdownPrivilege	3008	WMIC.exe
Token: SeUndockPrivilege	3008	WMIC.exe
Token: SeManageVolumePrivilege	3008	WMIC.exe
Token: 33	3008	WMIC.exe
Token: 34	3008	WMIC.exe
Token: 35	3008	WMIC.exe
Token: 36	3008	WMIC.exe
Token: SeIncreaseQuotaPrivilege	3008	WMIC.exe
Token: SeSecurityPrivilege	3008	WMIC.exe
Token: SeTakeOwnershipPrivilege	3008	WMIC.exe
Token: SeLoadDriverPrivilege	3008	WMIC.exe
Token: SeSystemProfilePrivilege	3008	WMIC.exe
Token: SeSystemtimePrivilege	3008	WMIC.exe
Token: SeProfSingleProcessPrivilege	3008	WMIC.exe
Token: SeIncBasePriorityPrivilege	3008	WMIC.exe
Token: SeCreatePagefilePrivilege	3008	WMIC.exe
Token: SeBackupPrivilege	3008	WMIC.exe
Token: SeRestorePrivilege	3008	WMIC.exe
Token: SeShutdownPrivilege	3008	WMIC.exe
Token: SeDebugPrivilege	3008	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3008	WMIC.exe
Token: SeRemoteShutdownPrivilege	3008	WMIC.exe
Token: SeUndockPrivilege	3008	WMIC.exe
Token: SeManageVolumePrivilege	3008	WMIC.exe
Token: 33	3008	WMIC.exe
Token: 34	3008	WMIC.exe
Token: 35	3008	WMIC.exe
Token: 36	3008	WMIC.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3912 wrote to memory of 4444	3912	1e3623db60060f182ce3d37907e2350e.exe	23
PID 3912 wrote to memory of 4444	3912	1e3623db60060f182ce3d37907e2350e.exe	23
PID 3912 wrote to memory of 4444	3912	1e3623db60060f182ce3d37907e2350e.exe	23
PID 4444 wrote to memory of 3008	4444	cmd.exe	21
PID 4444 wrote to memory of 3008	4444	cmd.exe	21
PID 4444 wrote to memory of 3008	4444	cmd.exe	21

C:\Users\Admin\AppData\Local\Temp\1e3623db60060f182ce3d37907e2350e.exe
"C:\Users\Admin\AppData\Local\Temp\1e3623db60060f182ce3d37907e2350e.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:3912
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4444
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3912 -s 2148
  2⤵
  - Program crash
  PID:1920
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3912 -s 2148
  2⤵
  - Program crash
  PID:3988

C:\Windows\SysWOW64\Wbem\WMIC.exe
wmic csproduct get uuid
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3912 -ip 3912
1⤵
PID:3832

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3912 -ip 3912
1⤵
PID:1048

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/3912-1-0x00000000743C0000-0x0000000074B70000-memory.dmp

Filesize
7.7MB

Download
memory/3912-2-0x00000000051E0000-0x0000000005784000-memory.dmp

Filesize
5.6MB

Download
memory/3912-3-0x0000000004CD0000-0x0000000004D62000-memory.dmp

Filesize
584KB

Download
memory/3912-0-0x00000000002E0000-0x00000000002F6000-memory.dmp

Filesize
88KB

Download
memory/3912-4-0x0000000004FB0000-0x0000000004FC0000-memory.dmp

Filesize
64KB

Download
memory/3912-54-0x00000000743C0000-0x0000000074B70000-memory.dmp

Filesize
7.7MB

Download
memory/3912-61-0x0000000004FB0000-0x0000000004FC0000-memory.dmp

Filesize
64KB

Download
memory/3912-75-0x0000000005A80000-0x0000000005A8A000-memory.dmp

Filesize
40KB

Download
memory/3912-76-0x00000000743C0000-0x0000000074B70000-memory.dmp

Filesize
7.7MB

Download