njrat | 8bb7352f2a023d505eecac509c6220d534acfd7a3ce0f697b73c624fc526ea31

General

Target

f5c6a28be032e43a355a50cc5e026e71_JaffaCakes118.exe
Size

24KB
MD5

f5c6a28be032e43a355a50cc5e026e71
SHA1

dbdadac67581c5a2790b380aa4cad4ef89d5c4dd
SHA256

8bb7352f2a023d505eecac509c6220d534acfd7a3ce0f697b73c624fc526ea31
SHA512

29c4dd298d24117cd8ff01e70114ed39023cc4c311a06a76d8cfd14d6e9779105523ceef5c7dde8ec81b09033ff465079d6557a4be086d93395d78bcbce82632
SSDEEP

384:jz5K6qlNDbUYmD2St4hRc262QvnARgFxv1iNsf/EU/45EucJ2vjYMvl4PssnbBs:TqaqSwm/1iNsf/z/C/bYbEaO

Score

10^/10

njrat discovery evasion persistence privilege_escalation trojan

Malware Config

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2984	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
2888	server.exe

Loads dropped DLL 1 IoCs

pid	Process
3028	f5c6a28be032e43a355a50cc5e026e71_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\f92a473879e0e31b0a690e91686fade4 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\f92a473879e0e31b0a690e91686fade4 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f5c6a28be032e43a355a50cc5e026e71_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	2888	server.exe
Token: 33	2888	server.exe
Token: SeIncBasePriorityPrivilege	2888	server.exe
Token: 33	2888	server.exe
Token: SeIncBasePriorityPrivilege	2888	server.exe
Token: 33	2888	server.exe
Token: SeIncBasePriorityPrivilege	2888	server.exe
Token: 33	2888	server.exe
Token: SeIncBasePriorityPrivilege	2888	server.exe
Token: 33	2888	server.exe
Token: SeIncBasePriorityPrivilege	2888	server.exe
Token: 33	2888	server.exe
Token: SeIncBasePriorityPrivilege	2888	server.exe
Token: 33	2888	server.exe
Token: SeIncBasePriorityPrivilege	2888	server.exe
Token: 33	2888	server.exe
Token: SeIncBasePriorityPrivilege	2888	server.exe
Token: 33	2888	server.exe
Token: SeIncBasePriorityPrivilege	2888	server.exe
Token: 33	2888	server.exe
Token: SeIncBasePriorityPrivilege	2888	server.exe
Token: 33	2888	server.exe
Token: SeIncBasePriorityPrivilege	2888	server.exe
Token: 33	2888	server.exe
Token: SeIncBasePriorityPrivilege	2888	server.exe
Token: 33	2888	server.exe
Token: SeIncBasePriorityPrivilege	2888	server.exe
Token: 33	2888	server.exe
Token: SeIncBasePriorityPrivilege	2888	server.exe
Token: 33	2888	server.exe
Token: SeIncBasePriorityPrivilege	2888	server.exe
Token: 33	2888	server.exe
Token: SeIncBasePriorityPrivilege	2888	server.exe
Token: 33	2888	server.exe
Token: SeIncBasePriorityPrivilege	2888	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3028 wrote to memory of 2888	3028	f5c6a28be032e43a355a50cc5e026e71_JaffaCakes118.exe	30
PID 3028 wrote to memory of 2888	3028	f5c6a28be032e43a355a50cc5e026e71_JaffaCakes118.exe	30
PID 3028 wrote to memory of 2888	3028	f5c6a28be032e43a355a50cc5e026e71_JaffaCakes118.exe	30
PID 3028 wrote to memory of 2888	3028	f5c6a28be032e43a355a50cc5e026e71_JaffaCakes118.exe	30
PID 2888 wrote to memory of 2984	2888	server.exe	31
PID 2888 wrote to memory of 2984	2888	server.exe	31
PID 2888 wrote to memory of 2984	2888	server.exe	31
PID 2888 wrote to memory of 2984	2888	server.exe	31

C:\Users\Admin\AppData\Local\Temp\f5c6a28be032e43a355a50cc5e026e71_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f5c6a28be032e43a355a50cc5e026e71_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3028
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2888
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2984

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\server.exe

Filesize
24KB

MD5
f5c6a28be032e43a355a50cc5e026e71

SHA1
dbdadac67581c5a2790b380aa4cad4ef89d5c4dd

SHA256
8bb7352f2a023d505eecac509c6220d534acfd7a3ce0f697b73c624fc526ea31

SHA512
29c4dd298d24117cd8ff01e70114ed39023cc4c311a06a76d8cfd14d6e9779105523ceef5c7dde8ec81b09033ff465079d6557a4be086d93395d78bcbce82632

Download Submit
memory/2888-10-0x0000000073E50000-0x00000000743FB000-memory.dmp

Filesize
5.7MB

Download
memory/2888-12-0x0000000073E50000-0x00000000743FB000-memory.dmp

Filesize
5.7MB

Download
memory/2888-11-0x0000000073E50000-0x00000000743FB000-memory.dmp

Filesize
5.7MB

Download
memory/2888-15-0x0000000073E50000-0x00000000743FB000-memory.dmp

Filesize
5.7MB

Download
memory/2888-16-0x0000000073E50000-0x00000000743FB000-memory.dmp

Filesize
5.7MB

Download
memory/3028-0-0x0000000073E51000-0x0000000073E52000-memory.dmp

Filesize
4KB

Download
memory/3028-1-0x0000000073E50000-0x00000000743FB000-memory.dmp

Filesize
5.7MB

Download
memory/3028-2-0x0000000073E50000-0x00000000743FB000-memory.dmp

Filesize
5.7MB

Download
memory/3028-13-0x0000000073E50000-0x00000000743FB000-memory.dmp

Filesize
5.7MB

Download
memory/3028-14-0x0000000073E50000-0x00000000743FB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads