nitro | a55de74765216e4695ca88b94be1d030646d746ca16957768a94d49aa244c905

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
06-04-2024 11:48

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General

Target

e279b94a16a7339b67f596d36972b53e_JaffaCakes118.exe
Size

62KB
MD5

e279b94a16a7339b67f596d36972b53e
SHA1

0cb7466452229dbe4cc4c7eaee0015caaaaf58c0
SHA256

a55de74765216e4695ca88b94be1d030646d746ca16957768a94d49aa244c905
SHA512

6ef836edcba7e2e7ef913d61510d5676222b934ba86c6cdcfc8e2016c08232658287cca0497399748a092a46f6cc3039e743b7883f72f8e20ff8a6a24892e0e8
SSDEEP

768:KKsMqCXfVcWpjDMLoiANIU0YdYLDwUzc80gmq3oP/oDJ:KKseVMLoiAP8r/0O8/od

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 (102) 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-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\e279b94a16a7339b67f596d36972b53e_JaffaCakes118.exe\""	e279b94a16a7339b67f596d36972b53e_JaffaCakes118.exe

Drops desktop.ini file(s) 5 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	e279b94a16a7339b67f596d36972b53e_JaffaCakes118.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	e279b94a16a7339b67f596d36972b53e_JaffaCakes118.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	e279b94a16a7339b67f596d36972b53e_JaffaCakes118.exe
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\desktop.ini	e279b94a16a7339b67f596d36972b53e_JaffaCakes118.exe
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	e279b94a16a7339b67f596d36972b53e_JaffaCakes118.exe

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

Web Service

T1102

flow	ioc
9	discord.com
14	discord.com
20	discord.com
21	discord.com
42	discord.com
8	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
6	api.ipify.org
7	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-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	e279b94a16a7339b67f596d36972b53e_JaffaCakes118.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3616	4880	WerFault.exe	85
5036	4880	WerFault.exe	85

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4880	e279b94a16a7339b67f596d36972b53e_JaffaCakes118.exe
4880	e279b94a16a7339b67f596d36972b53e_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	4880	e279b94a16a7339b67f596d36972b53e_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	3900	WMIC.exe
Token: SeSecurityPrivilege	3900	WMIC.exe
Token: SeTakeOwnershipPrivilege	3900	WMIC.exe
Token: SeLoadDriverPrivilege	3900	WMIC.exe
Token: SeSystemProfilePrivilege	3900	WMIC.exe
Token: SeSystemtimePrivilege	3900	WMIC.exe
Token: SeProfSingleProcessPrivilege	3900	WMIC.exe
Token: SeIncBasePriorityPrivilege	3900	WMIC.exe
Token: SeCreatePagefilePrivilege	3900	WMIC.exe
Token: SeBackupPrivilege	3900	WMIC.exe
Token: SeRestorePrivilege	3900	WMIC.exe
Token: SeShutdownPrivilege	3900	WMIC.exe
Token: SeDebugPrivilege	3900	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3900	WMIC.exe
Token: SeRemoteShutdownPrivilege	3900	WMIC.exe
Token: SeUndockPrivilege	3900	WMIC.exe
Token: SeManageVolumePrivilege	3900	WMIC.exe
Token: 33	3900	WMIC.exe
Token: 34	3900	WMIC.exe
Token: 35	3900	WMIC.exe
Token: 36	3900	WMIC.exe
Token: SeIncreaseQuotaPrivilege	3900	WMIC.exe
Token: SeSecurityPrivilege	3900	WMIC.exe
Token: SeTakeOwnershipPrivilege	3900	WMIC.exe
Token: SeLoadDriverPrivilege	3900	WMIC.exe
Token: SeSystemProfilePrivilege	3900	WMIC.exe
Token: SeSystemtimePrivilege	3900	WMIC.exe
Token: SeProfSingleProcessPrivilege	3900	WMIC.exe
Token: SeIncBasePriorityPrivilege	3900	WMIC.exe
Token: SeCreatePagefilePrivilege	3900	WMIC.exe
Token: SeBackupPrivilege	3900	WMIC.exe
Token: SeRestorePrivilege	3900	WMIC.exe
Token: SeShutdownPrivilege	3900	WMIC.exe
Token: SeDebugPrivilege	3900	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3900	WMIC.exe
Token: SeRemoteShutdownPrivilege	3900	WMIC.exe
Token: SeUndockPrivilege	3900	WMIC.exe
Token: SeManageVolumePrivilege	3900	WMIC.exe
Token: 33	3900	WMIC.exe
Token: 34	3900	WMIC.exe
Token: 35	3900	WMIC.exe
Token: 36	3900	WMIC.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4880 wrote to memory of 1576	4880	e279b94a16a7339b67f596d36972b53e_JaffaCakes118.exe	89
PID 4880 wrote to memory of 1576	4880	e279b94a16a7339b67f596d36972b53e_JaffaCakes118.exe	89
PID 4880 wrote to memory of 1576	4880	e279b94a16a7339b67f596d36972b53e_JaffaCakes118.exe	89
PID 1576 wrote to memory of 3900	1576	cmd.exe	91
PID 1576 wrote to memory of 3900	1576	cmd.exe	91
PID 1576 wrote to memory of 3900	1576	cmd.exe	91

C:\Users\Admin\AppData\Local\Temp\e279b94a16a7339b67f596d36972b53e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e279b94a16a7339b67f596d36972b53e_JaffaCakes118.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:4880
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1576
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:3900
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4880 -s 1112
  2⤵
  - Program crash
  PID:3616
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4880 -s 1112
  2⤵
  - Program crash
  PID:5036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 372 -p 4880 -ip 4880
1⤵
PID:2712

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4880 -ip 4880
1⤵
PID:1548

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/4880-0-0x0000000000720000-0x0000000000736000-memory.dmp

Filesize
88KB

Download
memory/4880-1-0x00000000752C0000-0x0000000075A70000-memory.dmp

Filesize
7.7MB

Download
memory/4880-2-0x00000000055F0000-0x0000000005B94000-memory.dmp

Filesize
5.6MB

Download
memory/4880-3-0x0000000005120000-0x00000000051B2000-memory.dmp

Filesize
584KB

Download
memory/4880-4-0x00000000050F0000-0x0000000005100000-memory.dmp

Filesize
64KB

Download
memory/4880-51-0x00000000752C0000-0x0000000075A70000-memory.dmp

Filesize
7.7MB

Download
memory/4880-58-0x00000000050F0000-0x0000000005100000-memory.dmp

Filesize
64KB

Download
memory/4880-111-0x0000000005E50000-0x0000000005E5A000-memory.dmp

Filesize
40KB

Download
memory/4880-112-0x00000000752C0000-0x0000000075A70000-memory.dmp

Filesize
7.7MB

Download