njrat | 1315a24934797f7bcacf88f31146fe7bb40646e3febe9b5548db14d1e9af6270

General

Target

JaffaCakes118_63c2605da147dd996cf67dbab271ecd0.exe
Size

950KB
MD5

63c2605da147dd996cf67dbab271ecd0
SHA1

7f58a8a3e59348a62a7cc2260aa3b3e9fb2c7de6
SHA256

1315a24934797f7bcacf88f31146fe7bb40646e3febe9b5548db14d1e9af6270
SHA512

0e7aee9cc9a193c7457f0dc1a4470f3b6ec414f5506e8a7f778af5b442720cb8c1f568b028ce118cc69ad52e4152f7738b0a32079bbbe3372a1dde4357642cef
SSDEEP

24576:EwfOoOVRYnqdlSOHtInpmrYPBQ5vMQvS1wUb:Ewmo2YnqdlSOKpmrYPB2vM4mw

Score

10^/10

njrat victime by achreef evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

Victime by achreef

C2

0523.no-ip.biz:1543

Mutex

1522a860fc4f8a79b71476fd27d96fe9

Attributes

reg_key
1522a860fc4f8a79b71476fd27d96fe9
splitter
|'|'|

Signatures

Njrat family
njrat
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
2156	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
2836	hutmen.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\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\1522a860fc4f8a79b71476fd27d96fe9 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\hutmen.exe\" .."	hutmen.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\1522a860fc4f8a79b71476fd27d96fe9 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\hutmen.exe\" .."	hutmen.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Microsoft.NET\Framework64\v2.0.50727\config\security.config.cch.new	JaffaCakes118_63c2605da147dd996cf67dbab271ecd0.exe
File created	C:\Windows\Microsoft.NET\Framework64\v2.0.50727\config\enterprisesec.config.cch.new	JaffaCakes118_63c2605da147dd996cf67dbab271ecd0.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\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

Suspicious behavior: EnumeratesProcesses 43 IoCs

pid	Process
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe
2836	hutmen.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2836	hutmen.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 2836	2668	JaffaCakes118_63c2605da147dd996cf67dbab271ecd0.exe	31
PID 2668 wrote to memory of 2836	2668	JaffaCakes118_63c2605da147dd996cf67dbab271ecd0.exe	31
PID 2668 wrote to memory of 2836	2668	JaffaCakes118_63c2605da147dd996cf67dbab271ecd0.exe	31
PID 2836 wrote to memory of 2156	2836	hutmen.exe	32
PID 2836 wrote to memory of 2156	2836	hutmen.exe	32
PID 2836 wrote to memory of 2156	2836	hutmen.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_63c2605da147dd996cf67dbab271ecd0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_63c2605da147dd996cf67dbab271ecd0.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Users\Admin\AppData\Local\Temp\hutmen.exe
  "C:\Users\Admin\AppData\Local\Temp\hutmen.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2836
- - C:\Windows\system32\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\hutmen.exe" "hutmen.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    PID:2156

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\hutmen.exe

Filesize
950KB

MD5
63c2605da147dd996cf67dbab271ecd0

SHA1
7f58a8a3e59348a62a7cc2260aa3b3e9fb2c7de6

SHA256
1315a24934797f7bcacf88f31146fe7bb40646e3febe9b5548db14d1e9af6270

SHA512
0e7aee9cc9a193c7457f0dc1a4470f3b6ec414f5506e8a7f778af5b442720cb8c1f568b028ce118cc69ad52e4152f7738b0a32079bbbe3372a1dde4357642cef

Download Submit
C:\Windows\Microsoft.NET\Framework64\v2.0.50727\config\enterprisesec.config.cch

Filesize
2KB

MD5
af6103b39df312bfd8a63bfce370dc1d

SHA1
a29d14b594fe49d5fb35ce62430bd68dca0e67d2

SHA256
2c3e1efb5254aa508a546b01753713f70648846ee6fbab1fb46ad7091fe9d349

SHA512
0bd13d58e823cced21c88b2cc4c1ef596a29f64a21b8d9ea65ba001eaa1219a63433698be4950cc44acb8ee173c8b3fc950dbcdb0255daa53552aac3e5cd4dc9

Download Submit
memory/2668-5-0x0000000000280000-0x000000000028A000-memory.dmp

Filesize
40KB

Download
memory/2668-9-0x00000000002B0000-0x00000000002B8000-memory.dmp

Filesize
32KB

Download
memory/2668-0-0x000007FEF5FCE000-0x000007FEF5FCF000-memory.dmp

Filesize
4KB

Download
memory/2668-4-0x0000000000270000-0x000000000027A000-memory.dmp

Filesize
40KB

Download
memory/2668-6-0x0000000000260000-0x000000000026A000-memory.dmp

Filesize
40KB

Download
memory/2668-7-0x00000000004F0000-0x00000000004FA000-memory.dmp

Filesize
40KB

Download
memory/2668-8-0x0000000000250000-0x0000000000258000-memory.dmp

Filesize
32KB

Download
memory/2668-3-0x00000000002A0000-0x00000000002AA000-memory.dmp

Filesize
40KB

Download
memory/2668-10-0x00000000004D0000-0x00000000004DC000-memory.dmp

Filesize
48KB

Download
memory/2668-2-0x000007FEF5D10000-0x000007FEF66AD000-memory.dmp

Filesize
9.6MB

Download
memory/2668-1-0x000007FEF5D10000-0x000007FEF66AD000-memory.dmp

Filesize
9.6MB

Download
memory/2668-24-0x000007FEF5D10000-0x000007FEF66AD000-memory.dmp

Filesize
9.6MB

Download
memory/2836-25-0x000007FEF5D10000-0x000007FEF66AD000-memory.dmp

Filesize
9.6MB

Download
memory/2836-26-0x000007FEF5D10000-0x000007FEF66AD000-memory.dmp

Filesize
9.6MB

Download
memory/2836-27-0x000007FEF5D10000-0x000007FEF66AD000-memory.dmp

Filesize
9.6MB

Download
memory/2836-28-0x000007FEF5D10000-0x000007FEF66AD000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads