njrat | 90067134519fe3a8071b6e4e7222beb95c7e50d78c44139dc128e13437b67c68

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
16-09-2024 19:23

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General

Target

Trojan.MSIL.Formbook.EE.exe
Size

116KB
MD5

3955b3b4240331161d1acb07293c2010
SHA1

e159f1af9169e5d716a5a6c90c70953982eadf0f
SHA256

90067134519fe3a8071b6e4e7222beb95c7e50d78c44139dc128e13437b67c68
SHA512

4b7d9c970e9f499f3f7e7bd71674bd01854142b2c3065b6feb4a202292b77e81fffe77b6eb9fe1d4d218bf9889bf4f9febebbe6116ba0acddb00f3784a08bdc1
SSDEEP

1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDL7:P5eznsjsguGDFqGZ2rDL7

Score

10^/10

njrat neuf discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

neuf

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
3032	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
2324	chargeable.exe
2744	chargeable.exe

Loads dropped DLL 2 IoCs

pid	Process
1928	Trojan.MSIL.Formbook.EE.exe
1928	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-1-5-21-3551809350-4263495960-1443967649-1000\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-1-5-21-3551809350-4263495960-1443967649-1000\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 2324 set thread context of 2744	2324	chargeable.exe	32

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	chargeable.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
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

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	2744	chargeable.exe
Token: 33	2744	chargeable.exe
Token: SeIncBasePriorityPrivilege	2744	chargeable.exe
Token: 33	2744	chargeable.exe
Token: SeIncBasePriorityPrivilege	2744	chargeable.exe
Token: 33	2744	chargeable.exe
Token: SeIncBasePriorityPrivilege	2744	chargeable.exe
Token: 33	2744	chargeable.exe
Token: SeIncBasePriorityPrivilege	2744	chargeable.exe
Token: 33	2744	chargeable.exe
Token: SeIncBasePriorityPrivilege	2744	chargeable.exe
Token: 33	2744	chargeable.exe
Token: SeIncBasePriorityPrivilege	2744	chargeable.exe
Token: 33	2744	chargeable.exe
Token: SeIncBasePriorityPrivilege	2744	chargeable.exe
Token: 33	2744	chargeable.exe
Token: SeIncBasePriorityPrivilege	2744	chargeable.exe
Token: 33	2744	chargeable.exe
Token: SeIncBasePriorityPrivilege	2744	chargeable.exe
Token: 33	2744	chargeable.exe
Token: SeIncBasePriorityPrivilege	2744	chargeable.exe
Token: 33	2744	chargeable.exe
Token: SeIncBasePriorityPrivilege	2744	chargeable.exe
Token: 33	2744	chargeable.exe
Token: SeIncBasePriorityPrivilege	2744	chargeable.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1928 wrote to memory of 2324	1928	Trojan.MSIL.Formbook.EE.exe	31
PID 1928 wrote to memory of 2324	1928	Trojan.MSIL.Formbook.EE.exe	31
PID 1928 wrote to memory of 2324	1928	Trojan.MSIL.Formbook.EE.exe	31
PID 1928 wrote to memory of 2324	1928	Trojan.MSIL.Formbook.EE.exe	31
PID 2324 wrote to memory of 2744	2324	chargeable.exe	32
PID 2324 wrote to memory of 2744	2324	chargeable.exe	32
PID 2324 wrote to memory of 2744	2324	chargeable.exe	32
PID 2324 wrote to memory of 2744	2324	chargeable.exe	32
PID 2324 wrote to memory of 2744	2324	chargeable.exe	32
PID 2324 wrote to memory of 2744	2324	chargeable.exe	32
PID 2324 wrote to memory of 2744	2324	chargeable.exe	32
PID 2324 wrote to memory of 2744	2324	chargeable.exe	32
PID 2324 wrote to memory of 2744	2324	chargeable.exe	32
PID 2744 wrote to memory of 3032	2744	chargeable.exe	33
PID 2744 wrote to memory of 3032	2744	chargeable.exe	33
PID 2744 wrote to memory of 3032	2744	chargeable.exe	33
PID 2744 wrote to memory of 3032	2744	chargeable.exe	33

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:1928
- 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:2324
- - 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:2744
  - - 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:3032

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

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\37C951188967C8EB88D99893D9D191FE

Filesize
1KB

MD5
e7122c733f9e37bba0ca4c985ce11d6d

SHA1
d661aa5b31ff7ef2df9bc4095279058c36499af2

SHA256
acc9932453f5aa68f4b95986668f5584f99e55bbe02eefc0d0960dab376df81a

SHA512
84cddf68a46f455b4ebbb8c0c70607fe60796cfc5eabdace12d0684a1323af9681700acbdbdc37e63d7806d0220fce9cba5213bb35cee056f9d71646f98711b9

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C0018BB1B5834735BFA60CD063B31956

Filesize
1KB

MD5
732cfeb76b91c4d13978a00b8c666ed7

SHA1
0c57f76436701f4d51397d1d4e86337dd9ab1964

SHA256
9fab9fc0a1da813e6ddb93904c1fcfa6546cfbe70747ff8468ddd14d2552dbd2

SHA512
2b8618e823355a4fa646d51a753f67d34bd7b14367d46fa187f2294af7c2794c6cdee664ea570862757a5f1c99dfcb67a7d4ddf8389d07dd8d696fe55aa538bd

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\37C951188967C8EB88D99893D9D191FE

Filesize
264B

MD5
fceadae579382414489478ee933c50a9

SHA1
ae023638f69c332cc9c327b3b055d5d9e5f39707

SHA256
31978f95922ec93948ca1212c9624522a60cf44cc8c7b658bd8dd690c1b5cb3b

SHA512
434c5178d1239ead9cf3bd10fcbeb3b68f84ad48f2ded178fa51f7ca412d87caa599133ca628f4047226f41e9494185d18b5ce5990ef4f86e7dd4c7c4c3d8d2a

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

Filesize
342B

MD5
de9ee36e38e41ffb4cd8cb68fbd9102f

SHA1
88d95e098b54472edfa565b11b15aa4e943e49f9

SHA256
2b0d2bedabd2436f728a2528d015be540821c2c930eacc9446234a087bc6dee1

SHA512
6e43913b3839ad76ddaeadb8243b72cffbf83a52abc6a0ee1fd511f42751ddbfdccbc40574a0e90d667f90262ba0686c0076274e3c1da3e0461ca06087525734

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

Filesize
342B

MD5
6991581a0ff5c5fc2eaacb231a7ef57e

SHA1
43c552582f3c8988465566cc5a1163d3e61a105a

SHA256
534636b5adbf271e62212c80640759155704891b78e6a7801990a4103aebc8dc

SHA512
717406d6db2e1d1bf4a18928345b966d269288e5eca7209d740b315c56199ab3beaf1502b1f7d86349d2dd3096b6a792e80d729977bf8d3eb681a4d28f4ea4b2

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

Filesize
342B

MD5
2d7ecd18fc4c01a566afd20d5e2d943f

SHA1
1ab0ae21b60368f7cb5a031500eab5a469e4b321

SHA256
a42303f3834340f58affd43d9659c76bb8645a5579d24e6edbbe93cba9a03d16

SHA512
2a67a9aba01a12b54ff1158166b4172a0762dd878a22ea12825b04d00f9e81fb759b737cea920a8bfaf75a99a36ed60230c2cf77e6af4986f147da3120dc1a93

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C0018BB1B5834735BFA60CD063B31956

Filesize
252B

MD5
46c703af7391e4169b1a359e7be04d9a

SHA1
a0130242fb0e2f73879f25f1385146c3663419b7

SHA256
03fc521ef62135aefda15ed0d6f733c6053d700c1640cf07d50a8584be069028

SHA512
48b3057a7967011dd5c7bee6c738d67825c8d8de40a91a82c20baabed0f477321ad840621b95549ace0663efb458c2884677b8710db908fd2beb3acd55d65ea0

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabB2ED.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarB2FF.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

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

Filesize
116KB

MD5
3756879d1c34a93f78fb8483aa420d43

SHA1
806df4bab768f2f7513fbb03208bbc7373fea10e

SHA256
2200d962a9efa9a6b80093b97fbe7367c4fcfe666b1d2a9ac53de4e084afe19e

SHA512
57816a0537dd1bcdddee111f1c9320cdba16475868d781ee1da71825097133e62c7aae4ae634899594c2e4d7527db42d52fe6d2f8918495e3bbc8c9887d8446c

Download Submit
memory/1928-179-0x0000000074B70000-0x000000007511B000-memory.dmp

Filesize
5.7MB

Download
memory/1928-0-0x0000000074B71000-0x0000000074B72000-memory.dmp

Filesize
4KB

Download
memory/1928-1-0x0000000074B70000-0x000000007511B000-memory.dmp

Filesize
5.7MB

Download
memory/1928-169-0x0000000074B70000-0x000000007511B000-memory.dmp

Filesize
5.7MB

Download
memory/2744-347-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2744-350-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2744-349-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads