njrat | 1ebe4204410e273fe3c1512725ae8d5f7b9fd13043368eb34f64b60122def206

General

Target

Trojan.MSIL.Formbook.EE.exe
Size

117KB
MD5

337dd3a669fe7b5df98ad7701d6a35b0
SHA1

74144c494db29f1cc775e4953cb6816571e9868a
SHA256

1ebe4204410e273fe3c1512725ae8d5f7b9fd13043368eb34f64b60122def206
SHA512

c60735104bef63236bccc0bf346b97305aa268c2f795598286bbbc556aa0499ec8655434d46fe59000f7478b5039b41d68fcbe201169c82df7bcc9a27cc6a754
SSDEEP

1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDLW4:P5eznsjsguGDFqGZ2rDLX

Score

10^/10

njrat neuf discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

neuf

C2

doddyfire.linkpc.net:10000

Mutex

e1a87040f2026369a233f9ae76301b7b

Attributes

reg_key
e1a87040f2026369a233f9ae76301b7b
splitter
|'|'|

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
1536	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
2360	chargeable.exe
2776	chargeable.exe

Loads dropped DLL 2 IoCs

pid	Process
2688	Trojan.MSIL.Formbook.EE.exe
2688	Trojan.MSIL.Formbook.EE.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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	Trojan.MSIL.Formbook.EE.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Trojan.MSIL.Formbook.EE.exe"	Trojan.MSIL.Formbook.EE.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2360 set thread context of 2776	2360	chargeable.exe	31

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 4 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	Trojan.MSIL.Formbook.EE.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chargeable.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chargeable.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	2776	chargeable.exe
Token: 33	2776	chargeable.exe
Token: SeIncBasePriorityPrivilege	2776	chargeable.exe
Token: 33	2776	chargeable.exe
Token: SeIncBasePriorityPrivilege	2776	chargeable.exe
Token: 33	2776	chargeable.exe
Token: SeIncBasePriorityPrivilege	2776	chargeable.exe
Token: 33	2776	chargeable.exe
Token: SeIncBasePriorityPrivilege	2776	chargeable.exe
Token: 33	2776	chargeable.exe
Token: SeIncBasePriorityPrivilege	2776	chargeable.exe
Token: 33	2776	chargeable.exe
Token: SeIncBasePriorityPrivilege	2776	chargeable.exe
Token: 33	2776	chargeable.exe
Token: SeIncBasePriorityPrivilege	2776	chargeable.exe
Token: 33	2776	chargeable.exe
Token: SeIncBasePriorityPrivilege	2776	chargeable.exe
Token: 33	2776	chargeable.exe
Token: SeIncBasePriorityPrivilege	2776	chargeable.exe
Token: 33	2776	chargeable.exe
Token: SeIncBasePriorityPrivilege	2776	chargeable.exe
Token: 33	2776	chargeable.exe
Token: SeIncBasePriorityPrivilege	2776	chargeable.exe
Token: 33	2776	chargeable.exe
Token: SeIncBasePriorityPrivilege	2776	chargeable.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2688 wrote to memory of 2360	2688	Trojan.MSIL.Formbook.EE.exe	30
PID 2688 wrote to memory of 2360	2688	Trojan.MSIL.Formbook.EE.exe	30
PID 2688 wrote to memory of 2360	2688	Trojan.MSIL.Formbook.EE.exe	30
PID 2688 wrote to memory of 2360	2688	Trojan.MSIL.Formbook.EE.exe	30
PID 2360 wrote to memory of 2776	2360	chargeable.exe	31
PID 2360 wrote to memory of 2776	2360	chargeable.exe	31
PID 2360 wrote to memory of 2776	2360	chargeable.exe	31
PID 2360 wrote to memory of 2776	2360	chargeable.exe	31
PID 2360 wrote to memory of 2776	2360	chargeable.exe	31
PID 2360 wrote to memory of 2776	2360	chargeable.exe	31
PID 2360 wrote to memory of 2776	2360	chargeable.exe	31
PID 2360 wrote to memory of 2776	2360	chargeable.exe	31
PID 2360 wrote to memory of 2776	2360	chargeable.exe	31
PID 2776 wrote to memory of 1536	2776	chargeable.exe	32
PID 2776 wrote to memory of 1536	2776	chargeable.exe	32
PID 2776 wrote to memory of 1536	2776	chargeable.exe	32
PID 2776 wrote to memory of 1536	2776	chargeable.exe	32

C:\Users\Admin\AppData\Local\Temp\Trojan.MSIL.Formbook.EE.exe
"C:\Users\Admin\AppData\Local\Temp\Trojan.MSIL.Formbook.EE.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2688
- C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
  "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2360
- - C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2776
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe" "chargeable.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:1536

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

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
c9fe4f0d62b2ec50a410fdf354ca1ea7

SHA1
fb2ed798762829b45414693834aa15a1c7fb9c7a

SHA256
43d70abf4cee63f95ed28528f146a1c77d4823cc3f71fb50434940fdcc6e965e

SHA512
f22f1131e03b691a6ac9375872a08e0f74f8d233b2f4179c6bcfa3cdd24c568d60fc5df5ecf51dfc4cc4953473691b0d087ecfa1b332c3583e56fd7c90dcc702

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
042c90ce1ba702201f92363c26f46cce

SHA1
fbbf1f9563f1bc1e9d58dfcd3e593f013a9a926c

SHA256
8d3bf0d11d69ad6890ca8c1d26dd6ee2c91a114072da7f8318fc686ff8e0ccc5

SHA512
ec0c2dc8bf84496cd06f2fb9b202e8a7a7d363f99fa03058e3dbeb3983ec79c8389f5e4782c9833c8cedf2dd4c2059665d8412cf5a948b73c788201f1faca512

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
e7d5f8985ceee34020b1e43ff164f26d

SHA1
1c775443477f91181daf13e32ce77543b2b21058

SHA256
a9b9761b37fde8ef9ae3dfcbbc1d35e1c44edfd86e341008a5f5a83f21d0fea1

SHA512
099f835f33f0c02cefa48664e9e43ac6aa467e66b645a1e622ff58f3a8ef9aa5d394d67ab7ef9584f17595700ca853d15060c48daa7f55f04056980c4b3e1a90

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab1BCC.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar1BEF.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
\Users\Admin\AppData\Roaming\confuse\chargeable.exe

Filesize
117KB

MD5
923701ea7a1b85f3fb48f5ed2ac561d6

SHA1
cb7d7f387ddb6bd5a9e79e002837101f16bc8c74

SHA256
b168da39e966722fc22060b05e57d451b6223d81825f0ca9708006d53e889434

SHA512
98ab6224354f9fbe58ae9cb4f921ce363110aabea71d5423c168ed9f8e44ce6ccd5675478d918f0bcd21b43f8d1febb9bb1c36960f4a93dfe6039ca2fea4b0c4

Download Submit
memory/2688-0-0x0000000074C01000-0x0000000074C02000-memory.dmp

Filesize
4KB

Download
memory/2688-8-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2688-176-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2776-343-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2776-342-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2776-340-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads