njrat | 1fd77b4983a23ba908746e571a7343687356382104476872892fad0bb21bf1c6

Analysis

max time kernel
114s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
02/09/2024, 04:12

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General

Target
4fb70c06fdefcc1595dc603fea1da470N.exe
Size 116KB
Sample240902-esrdqs1ell
SHA256 1fd77b4983a23ba908746e571a7343687356382104476872892fad0bb21bf1c6
MD5 4fb70c06fdefcc1595dc603fea1da470
SHA1 868e36d53792bf49b3ce8c7e4ec6aa146ab64001
SHA512 f9d895b727cac4e57e8754782ebad9756f21f111b4b75e3806da4da3c13177e70c306e8491080b238535e04592826a48be24e0ced158497abd58c913f32bedf4
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDLZbL:P5eznsjsguGDFqGZ2rDLt
MD5 SHA1 SHA512 SSDEEP

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
2116	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
332	chargeable.exe
2728	chargeable.exe

Loads dropped DLL 2 IoCs

pid	Process
2308	4fb70c06fdefcc1595dc603fea1da470N.exe
2308	4fb70c06fdefcc1595dc603fea1da470N.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-1-5-21-940600906-3464502421-4240639183-1000\Software\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	4fb70c06fdefcc1595dc603fea1da470N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\4fb70c06fdefcc1595dc603fea1da470N.exe"	4fb70c06fdefcc1595dc603fea1da470N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 332 set thread context of 2728	332	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	4fb70c06fdefcc1595dc603fea1da470N.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	2728	chargeable.exe
Token: 33	2728	chargeable.exe
Token: SeIncBasePriorityPrivilege	2728	chargeable.exe
Token: 33	2728	chargeable.exe
Token: SeIncBasePriorityPrivilege	2728	chargeable.exe
Token: 33	2728	chargeable.exe
Token: SeIncBasePriorityPrivilege	2728	chargeable.exe
Token: 33	2728	chargeable.exe
Token: SeIncBasePriorityPrivilege	2728	chargeable.exe
Token: 33	2728	chargeable.exe
Token: SeIncBasePriorityPrivilege	2728	chargeable.exe
Token: 33	2728	chargeable.exe
Token: SeIncBasePriorityPrivilege	2728	chargeable.exe
Token: 33	2728	chargeable.exe
Token: SeIncBasePriorityPrivilege	2728	chargeable.exe
Token: 33	2728	chargeable.exe
Token: SeIncBasePriorityPrivilege	2728	chargeable.exe
Token: 33	2728	chargeable.exe
Token: SeIncBasePriorityPrivilege	2728	chargeable.exe
Token: 33	2728	chargeable.exe
Token: SeIncBasePriorityPrivilege	2728	chargeable.exe
Token: 33	2728	chargeable.exe
Token: SeIncBasePriorityPrivilege	2728	chargeable.exe
Token: 33	2728	chargeable.exe
Token: SeIncBasePriorityPrivilege	2728	chargeable.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2308 wrote to memory of 332	2308	4fb70c06fdefcc1595dc603fea1da470N.exe	30
PID 2308 wrote to memory of 332	2308	4fb70c06fdefcc1595dc603fea1da470N.exe	30
PID 2308 wrote to memory of 332	2308	4fb70c06fdefcc1595dc603fea1da470N.exe	30
PID 2308 wrote to memory of 332	2308	4fb70c06fdefcc1595dc603fea1da470N.exe	30
PID 332 wrote to memory of 2728	332	chargeable.exe	31
PID 332 wrote to memory of 2728	332	chargeable.exe	31
PID 332 wrote to memory of 2728	332	chargeable.exe	31
PID 332 wrote to memory of 2728	332	chargeable.exe	31
PID 332 wrote to memory of 2728	332	chargeable.exe	31
PID 332 wrote to memory of 2728	332	chargeable.exe	31
PID 332 wrote to memory of 2728	332	chargeable.exe	31
PID 332 wrote to memory of 2728	332	chargeable.exe	31
PID 332 wrote to memory of 2728	332	chargeable.exe	31
PID 2728 wrote to memory of 2116	2728	chargeable.exe	33
PID 2728 wrote to memory of 2116	2728	chargeable.exe	33
PID 2728 wrote to memory of 2116	2728	chargeable.exe	33
PID 2728 wrote to memory of 2116	2728	chargeable.exe	33

C:\Users\Admin\AppData\Local\Temp\4fb70c06fdefcc1595dc603fea1da470N.exe
"C:\Users\Admin\AppData\Local\Temp\4fb70c06fdefcc1595dc603fea1da470N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2308
- 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:332
- - 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:2728
  - - 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:2116

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

Replay Monitor

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Downloads

37C951188967C8EB88D99893D9D191FE

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\37C951188967C8EB88D99893D9D191FE
Size 1KB
SHA256 acc9932453f5aa68f4b95986668f5584f99e55bbe02eefc0d0960dab376df81a
MD5 e7122c733f9e37bba0ca4c985ce11d6d
SHA1 d661aa5b31ff7ef2df9bc4095279058c36499af2
SHA512 84cddf68a46f455b4ebbb8c0c70607fe60796cfc5eabdace12d0684a1323af9681700acbdbdc37e63d7806d0220fce9cba5213bb35cee056f9d71646f98711b9
MD5 SHA1 SHA512

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C0018BB1B5834735BFA60CD063B31956

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C0018BB1B5834735BFA60CD063B31956
Size 1KB
SHA256 9fab9fc0a1da813e6ddb93904c1fcfa6546cfbe70747ff8468ddd14d2552dbd2
MD5 732cfeb76b91c4d13978a00b8c666ed7
SHA1 0c57f76436701f4d51397d1d4e86337dd9ab1964
SHA512 2b8618e823355a4fa646d51a753f67d34bd7b14367d46fa187f2294af7c2794c6cdee664ea570862757a5f1c99dfcb67a7d4ddf8389d07dd8d696fe55aa538bd
MD5 SHA1 SHA512

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37C951188967C8EB88D99893D9D191FE

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\37C951188967C8EB88D99893D9D191FE
Size 264B
SHA256 e0c42de6423c42ba4f98178062b4f0985c99cc23df7436088eb8eec1694bf629
MD5 a8d341f1aec3466646a56ab849e032dc
SHA1 8274b65b87bd91059166c64403bc2c22c142c03a
SHA512 0d29b8c43d733f8983687499b725155e3fde84a27384be239265a4bcd46615cc5bb1b8a5650ae152e0c158298847bd78f8953095bf577ecc38f2732d095779b6
MD5 SHA1 SHA512

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94308059B57B3142E455B38A6EB92015

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Size 342B
SHA256 3b812cdbea7947883680e1873f7b91d3e2d90727b8c3427aed122235184be0da
MD5 79d4bd970262b09177e3584cb38b4fb6
SHA1 7f0c9e6c3d06495e8d057251b1dece7f917c3aa5
SHA512 937e058240bd3e13ee90e54a91572a9e6bb525d88196339947955391b1e6803eefc2d2df12dfdcc0a776a96fa12cc725affdf6351868584e5e5025abb1bf42ab
MD5 SHA1 SHA512

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94308059B57B3142E455B38A6EB92015

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Size 342B
SHA256 e70f87d47910f3baf1d504f22b91a7c465e66a09349babaa435ae5868aee7b1d
MD5 a534c6d3fee1fa53b7c127eaab61c7ef
SHA1 9a20e04443b7c9fdd5051230a7ac013554d421e3
SHA512 e1b59b7ef22c838de41c4f89f7ea55f4ffae01f5e5860f7c1cdbb2e0bd4a6f910f1458bc93836c9ad11fce04757d8580ba2c6315ff76ef1444398a3ea0a7d22b
MD5 SHA1 SHA512

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94308059B57B3142E455B38A6EB92015

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Size 342B
SHA256 4999cbbd723ed1c8ab85f2384532409b6fcae48411de87862a188db46757b6a5
MD5 8a5bd0f864a5932811deb5f2eb906a0b
SHA1 1a9a88ca493b1393feaf4246f469518e3d142c3e
SHA512 99cc2f95fda6f907517245d8ee07f9f0e3ee8be2122cd0ffdb31adba140b0bebb251af27b652bc95f79e87512c73ecd6aa1295af0433ed412938a1efd09f3cbc
MD5 SHA1 SHA512

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C0018BB1B5834735BFA60CD063B31956

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C0018BB1B5834735BFA60CD063B31956
Size 252B
SHA256 8c396d31fe947c84769a09427d37ee0f48689d9a34cb66b048088132696b85c6
MD5 ead7f60aa2916b8ca7d630311b2200a0
SHA1 b7a1c1dffd9713e8288e1fafa1c6e4500eb396ec
SHA512 75b7c089441e3a3f3235cced4024a740331144ac74f059205720ed5d9d3ea99f8c6efb5ace942e0f475d3afb898aaa161a2111515bb4a800bdaae5b0f45ac00d
MD5 SHA1 SHA512

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Cab953F.tmp

Path C:\Users\Admin\AppData\Local\Temp\Cab953F.tmp
Size 70KB
SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
MD5 49aebf8cbd62d92ac215b2923fb1b9f5
SHA1 1723be06719828dda65ad804298d0431f6aff976
SHA512 bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
SSDEEP 1536:gc257bHnClJ3v5mnAQEBP+bfnW8Ctl8G1G4eu76NWDdB34w18R5cBWcJAm68+Q:gp2ld5jPqW8LgeulxB3fgcEfDQ
MD5 SHA1 SHA512 SSDEEP

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Tar9562.tmp

Path C:\Users\Admin\AppData\Local\Temp\Tar9562.tmp
Size 181KB
SHA256 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
MD5 4ea6026cf93ec6338144661bf1202cd1
SHA1 a1dec9044f750ad887935a01430bf49322fbdcb7
SHA512 6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b
SSDEEP 1536:aAZw/J+lCUsTRvsqgCyqWlUDNWdm1wpSru2A0XwjY/z02DTr3rmt6mZ:as2J+qTR0XCy/dmASru2AijbdG
MD5 SHA1 SHA512 SSDEEP

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chargeable.exe

Path \Users\Admin\AppData\Roaming\confuse\chargeable.exe
Size 116KB
SHA256 ae8f869b7a18cd82c27393ee42339ceaefa430143c6508837ad49ee2d7233c34
MD5 66fc9ff3bdbbd4b7047ed652b4574747
SHA1 0aea1df092780c4d5aedb570b0b50137dffd5e54
SHA512 e630c1a07fce856c6c81237c2a2be1222576905555dd5ab4b087659893bb0bab9645b7f1c72f875f7dd76c50d0a242605fb45a2b31097c8d183e4ba34b2ffb8a
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDLZby:P5eznsjsguGDFqGZ2rDLQ
MD5 SHA1 SHA512 SSDEEP

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memory/2308-180-0x0000000074320000-0x00000000748CB000-memory.dmp

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memory/2308-170-0x0000000074320000-0x00000000748CB000-memory.dmp

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memory/2308-0-0x0000000074321000-0x0000000074322000-memory.dmp

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memory/2308-2-0x0000000074320000-0x00000000748CB000-memory.dmp

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memory/2308-1-0x0000000074320000-0x00000000748CB000-memory.dmp

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memory/2728-348-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/2728-351-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/2728-350-0x0000000000400000-0x000000000040C000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads