nitro | e98bc10cbd25be7fa5830a04cd2d089443d24be06c60305b49c5fe9fff529108

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10-03-2024 01:45

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General

Target

e98bc10cbd25be7fa5830a04cd2d089443d24be06c60305b49c5fe9fff529108.exe
Size

60KB
MD5

78dccba73280386590569de76a4dbe38
SHA1

496972dd693202c7ed3d0e78fd080d25953d4918
SHA256

e98bc10cbd25be7fa5830a04cd2d089443d24be06c60305b49c5fe9fff529108
SHA512

dc57a0fc38dc6eb9040c3b1a7bf51433490b7a77cb0661a4bccfcf5852563964ddd55bb0347c0ff305d85d4de5b020a2fb624c3ed5f9358f6e0d772bdac30af4
SSDEEP

768:BOucKn7n1JVDNANIUXUvLDwUzc80gmq3oP/oDD:BO2VDNAPSr/0O8/ov

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

Detects executables Discord URL observed in first stage droppers 1 IoCs

resource	yara_rule
behavioral1/memory/2940-0-0x0000000000FB0000-0x0000000000FC6000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_DiscordURL

Renames multiple (69) 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-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\e98bc10cbd25be7fa5830a04cd2d089443d24be06c60305b49c5fe9fff529108.exe\""	e98bc10cbd25be7fa5830a04cd2d089443d24be06c60305b49c5fe9fff529108.exe

Drops desktop.ini file(s) 3 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	e98bc10cbd25be7fa5830a04cd2d089443d24be06c60305b49c5fe9fff529108.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	e98bc10cbd25be7fa5830a04cd2d089443d24be06c60305b49c5fe9fff529108.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	e98bc10cbd25be7fa5830a04cd2d089443d24be06c60305b49c5fe9fff529108.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 6 IoCs

Web Service

T1102

flow	ioc
4	discord.com
5	discord.com
6	discord.com
7	discord.com
8	discord.com
9	discord.com

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
2	api.ipify.org
3	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-1-5-21-2297530677-1229052932-2803917579-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	e98bc10cbd25be7fa5830a04cd2d089443d24be06c60305b49c5fe9fff529108.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg"	e98bc10cbd25be7fa5830a04cd2d089443d24be06c60305b49c5fe9fff529108.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2940	e98bc10cbd25be7fa5830a04cd2d089443d24be06c60305b49c5fe9fff529108.exe
2940	e98bc10cbd25be7fa5830a04cd2d089443d24be06c60305b49c5fe9fff529108.exe

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: SeDebugPrivilege	2940	e98bc10cbd25be7fa5830a04cd2d089443d24be06c60305b49c5fe9fff529108.exe
Token: SeIncreaseQuotaPrivilege	2336	WMIC.exe
Token: SeSecurityPrivilege	2336	WMIC.exe
Token: SeTakeOwnershipPrivilege	2336	WMIC.exe
Token: SeLoadDriverPrivilege	2336	WMIC.exe
Token: SeSystemProfilePrivilege	2336	WMIC.exe
Token: SeSystemtimePrivilege	2336	WMIC.exe
Token: SeProfSingleProcessPrivilege	2336	WMIC.exe
Token: SeIncBasePriorityPrivilege	2336	WMIC.exe
Token: SeCreatePagefilePrivilege	2336	WMIC.exe
Token: SeBackupPrivilege	2336	WMIC.exe
Token: SeRestorePrivilege	2336	WMIC.exe
Token: SeShutdownPrivilege	2336	WMIC.exe
Token: SeDebugPrivilege	2336	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2336	WMIC.exe
Token: SeRemoteShutdownPrivilege	2336	WMIC.exe
Token: SeUndockPrivilege	2336	WMIC.exe
Token: SeManageVolumePrivilege	2336	WMIC.exe
Token: 33	2336	WMIC.exe
Token: 34	2336	WMIC.exe
Token: 35	2336	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2336	WMIC.exe
Token: SeSecurityPrivilege	2336	WMIC.exe
Token: SeTakeOwnershipPrivilege	2336	WMIC.exe
Token: SeLoadDriverPrivilege	2336	WMIC.exe
Token: SeSystemProfilePrivilege	2336	WMIC.exe
Token: SeSystemtimePrivilege	2336	WMIC.exe
Token: SeProfSingleProcessPrivilege	2336	WMIC.exe
Token: SeIncBasePriorityPrivilege	2336	WMIC.exe
Token: SeCreatePagefilePrivilege	2336	WMIC.exe
Token: SeBackupPrivilege	2336	WMIC.exe
Token: SeRestorePrivilege	2336	WMIC.exe
Token: SeShutdownPrivilege	2336	WMIC.exe
Token: SeDebugPrivilege	2336	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2336	WMIC.exe
Token: SeRemoteShutdownPrivilege	2336	WMIC.exe
Token: SeUndockPrivilege	2336	WMIC.exe
Token: SeManageVolumePrivilege	2336	WMIC.exe
Token: 33	2336	WMIC.exe
Token: 34	2336	WMIC.exe
Token: 35	2336	WMIC.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2940 wrote to memory of 2952	2940	e98bc10cbd25be7fa5830a04cd2d089443d24be06c60305b49c5fe9fff529108.exe	28
PID 2940 wrote to memory of 2952	2940	e98bc10cbd25be7fa5830a04cd2d089443d24be06c60305b49c5fe9fff529108.exe	28
PID 2940 wrote to memory of 2952	2940	e98bc10cbd25be7fa5830a04cd2d089443d24be06c60305b49c5fe9fff529108.exe	28
PID 2940 wrote to memory of 2952	2940	e98bc10cbd25be7fa5830a04cd2d089443d24be06c60305b49c5fe9fff529108.exe	28
PID 2952 wrote to memory of 2336	2952	cmd.exe	30
PID 2952 wrote to memory of 2336	2952	cmd.exe	30
PID 2952 wrote to memory of 2336	2952	cmd.exe	30
PID 2952 wrote to memory of 2336	2952	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\e98bc10cbd25be7fa5830a04cd2d089443d24be06c60305b49c5fe9fff529108.exe
"C:\Users\Admin\AppData\Local\Temp\e98bc10cbd25be7fa5830a04cd2d089443d24be06c60305b49c5fe9fff529108.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:2940
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2952
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2336

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/2940-0-0x0000000000FB0000-0x0000000000FC6000-memory.dmp

Filesize
88KB

Download
memory/2940-1-0x0000000074620000-0x0000000074D0E000-memory.dmp

Filesize
6.9MB

Download
memory/2940-2-0x0000000000EF0000-0x0000000000F30000-memory.dmp

Filesize
256KB

Download
memory/2940-63-0x0000000074620000-0x0000000074D0E000-memory.dmp

Filesize
6.9MB

Download
memory/2940-72-0x0000000000EF0000-0x0000000000F30000-memory.dmp

Filesize
256KB

Download
memory/2940-77-0x0000000000EF0000-0x0000000000F30000-memory.dmp

Filesize
256KB

Download
memory/2940-78-0x0000000000EF0000-0x0000000000F30000-memory.dmp

Filesize
256KB

Download