njrat | 0ee97cd307a46d4449208faa5205e9345ef0e1f7f6ea0f21d4f7b573318abe4f

Resubmissions

16-11-2024 15:16

241116-snf9vsydrb 10

Analysis

max time kernel
149s
max time network
141s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16-11-2024 15:16

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General

Target

download.exe
Size

8.7MB
MD5

f54be4689944e9619227d20cadaeb1d7
SHA1

59f24ac7f02ac74cdd33dcfde64fa795db1b4859
SHA256

0ee97cd307a46d4449208faa5205e9345ef0e1f7f6ea0f21d4f7b573318abe4f
SHA512

39bca26e07f82efaf0268fdb3c8128f7028980f9cc6d75824b044f0085c88b8e69d4ee464e5c02e8ebf344cb92707f0c23e981e44767999d48d6391404922009
SSDEEP

196608:I74BEp+LPU4XrAYycB8aB3QwRP9qWUilUNYfGjH:IREPUUAcGaegVhUzRj

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation pyinstaller trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Hacked

agentkay.ddns.net:1177

Mutex

172d8c9948a08740c8556f1c2d338a78

Attributes

reg_key
172d8c9948a08740c8556f1c2d338a78
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

Processes:

netsh.exe

pid	Process
1416	netsh.exe

Drops startup file 2 IoCs

Processes:

svchost.exe

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\172d8c9948a08740c8556f1c2d338a78.exe	svchost.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\172d8c9948a08740c8556f1c2d338a78.exe	svchost.exe

Executes dropped EXE 4 IoCs

Processes:

checker.exesvchost.exechecker.exesvchost.exe

pid	Process
2308	checker.exe
2804	svchost.exe
2128	checker.exe
2500	svchost.exe

Loads dropped DLL 12 IoCs

Processes:

download.exechecker.exechecker.exesvchost.exe

pid	Process
2932	download.exe
2744
2932	download.exe
2308	checker.exe
2128	checker.exe
2128	checker.exe
2128	checker.exe
2128	checker.exe
2128	checker.exe
2128	checker.exe
2128	checker.exe
2804	svchost.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\172d8c9948a08740c8556f1c2d338a78 = "\"C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe\" .."	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\172d8c9948a08740c8556f1c2d338a78 = "\"C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe\" .."	svchost.exe

Detects Pyinstaller 1 IoCs

pyinstaller

Processes:

resource	yara_rule
behavioral1/files/0x000a00000001225c-2.dat	pyinstaller

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

Processes:

netsh.exe

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

Processes:

svchost.exenetsh.exedownload.exesvchost.exe

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

Suspicious use of AdjustPrivilegeToken 35 IoCs

Processes:

svchost.exe

description	pid	Process
Token: SeDebugPrivilege	2500	svchost.exe
Token: 33	2500	svchost.exe
Token: SeIncBasePriorityPrivilege	2500	svchost.exe
Token: 33	2500	svchost.exe
Token: SeIncBasePriorityPrivilege	2500	svchost.exe
Token: 33	2500	svchost.exe
Token: SeIncBasePriorityPrivilege	2500	svchost.exe
Token: 33	2500	svchost.exe
Token: SeIncBasePriorityPrivilege	2500	svchost.exe
Token: 33	2500	svchost.exe
Token: SeIncBasePriorityPrivilege	2500	svchost.exe
Token: 33	2500	svchost.exe
Token: SeIncBasePriorityPrivilege	2500	svchost.exe
Token: 33	2500	svchost.exe
Token: SeIncBasePriorityPrivilege	2500	svchost.exe
Token: 33	2500	svchost.exe
Token: SeIncBasePriorityPrivilege	2500	svchost.exe
Token: 33	2500	svchost.exe
Token: SeIncBasePriorityPrivilege	2500	svchost.exe
Token: 33	2500	svchost.exe
Token: SeIncBasePriorityPrivilege	2500	svchost.exe
Token: 33	2500	svchost.exe
Token: SeIncBasePriorityPrivilege	2500	svchost.exe
Token: 33	2500	svchost.exe
Token: SeIncBasePriorityPrivilege	2500	svchost.exe
Token: 33	2500	svchost.exe
Token: SeIncBasePriorityPrivilege	2500	svchost.exe
Token: 33	2500	svchost.exe
Token: SeIncBasePriorityPrivilege	2500	svchost.exe
Token: 33	2500	svchost.exe
Token: SeIncBasePriorityPrivilege	2500	svchost.exe
Token: 33	2500	svchost.exe
Token: SeIncBasePriorityPrivilege	2500	svchost.exe
Token: 33	2500	svchost.exe
Token: SeIncBasePriorityPrivilege	2500	svchost.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

download.exechecker.exesvchost.exesvchost.exe

description	pid	Process	procid_target
PID 2932 wrote to memory of 2308	2932	download.exe	30
PID 2932 wrote to memory of 2308	2932	download.exe	30
PID 2932 wrote to memory of 2308	2932	download.exe	30
PID 2932 wrote to memory of 2308	2932	download.exe	30
PID 2932 wrote to memory of 2804	2932	download.exe	32
PID 2932 wrote to memory of 2804	2932	download.exe	32
PID 2932 wrote to memory of 2804	2932	download.exe	32
PID 2932 wrote to memory of 2804	2932	download.exe	32
PID 2308 wrote to memory of 2128	2308	checker.exe	33
PID 2308 wrote to memory of 2128	2308	checker.exe	33
PID 2308 wrote to memory of 2128	2308	checker.exe	33
PID 2804 wrote to memory of 2500	2804	svchost.exe	34
PID 2804 wrote to memory of 2500	2804	svchost.exe	34
PID 2804 wrote to memory of 2500	2804	svchost.exe	34
PID 2804 wrote to memory of 2500	2804	svchost.exe	34
PID 2500 wrote to memory of 1416	2500	svchost.exe	35
PID 2500 wrote to memory of 1416	2500	svchost.exe	35
PID 2500 wrote to memory of 1416	2500	svchost.exe	35
PID 2500 wrote to memory of 1416	2500	svchost.exe	35

C:\Users\Admin\AppData\Local\Temp\download.exe
"C:\Users\Admin\AppData\Local\Temp\download.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2932
- C:\Users\Admin\AppData\Local\Temp\checker.exe
  "C:\Users\Admin\AppData\Local\Temp\checker.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2308
- - C:\Users\Admin\AppData\Local\Temp\checker.exe
    "C:\Users\Admin\AppData\Local\Temp\checker.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:2128
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2804
- - C:\Users\Admin\AppData\Roaming\svchost.exe
    "C:\Users\Admin\AppData\Roaming\svchost.exe"
    3⤵
    - Drops startup file
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2500
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\svchost.exe" "svchost.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:1416

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\Local\Temp\_MEI23082\api-ms-win-core-localization-l1-2-0.dll

Filesize
21KB

MD5
724223109e49cb01d61d63a8be926b8f

SHA1
072a4d01e01dbbab7281d9bd3add76f9a3c8b23b

SHA256
4e975f618df01a492ae433dff0dd713774d47568e44c377ceef9e5b34aad1210

SHA512
19b0065b894dc66c30a602c9464f118e7f84d83010e74457d48e93aaca4422812b093b15247b24d5c398b42ef0319108700543d13f156067b169ccfb4d7b6b7c

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI23082\python39.dll

Filesize
4.3MB

MD5
11c051f93c922d6b6b4829772f27a5be

SHA1
42fbdf3403a4bc3d46d348ca37a9f835e073d440

SHA256
0eabf135bb9492e561bbbc5602a933623c9e461aceaf6eb1ceced635e363cd5c

SHA512
1cdec23486cffcb91098a8b2c3f1262d6703946acf52aa2fe701964fb228d1411d9b6683bd54527860e10affc0e3d3de92a6ecf2c6c8465e9c8b9a7304e2a4a6

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI23082\ucrtbase.dll

Filesize
992KB

MD5
0e0bac3d1dcc1833eae4e3e4cf83c4ef

SHA1
4189f4459c54e69c6d3155a82524bda7549a75a6

SHA256
8a91052ef261b5fbf3223ae9ce789af73dfe1e9b0ba5bdbc4d564870a24f2bae

SHA512
a45946e3971816f66dd7ea3788aacc384a9e95011500b458212dc104741315b85659e0d56a41570731d338bdf182141c093d3ced222c007038583ceb808e26fd

Download Submit
C:\Users\Admin\AppData\Local\Temp\svchost.exe

Filesize
23KB

MD5
f101b286f5cb717285969fead13d886c

SHA1
f252c2c7b6fec3cb7882b49646cc4b95ead30787

SHA256
6156f8b0079a67e904212f3f9d997672e934d702cdf0a69a4a805c05edad9f94

SHA512
ccc222377f977ed42393d5cadb7a4cec97f3652b932b14ef9b62e5d5e926c525b4abc279c61869e684c907841cd935bdbe1a9ab0e49968c9d887a77b99806a34

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI23082\api-ms-win-core-file-l1-2-0.dll

Filesize
21KB

MD5
1c58526d681efe507deb8f1935c75487

SHA1
0e6d328faf3563f2aae029bc5f2272fb7a742672

SHA256
ef13dce8f71173315dfc64ab839b033ab19a968ee15230e9d4d2c9d558efeee2

SHA512
8edb9a0022f417648e2ece9e22c96e2727976332025c3e7d8f15bcf6d7d97e680d1bf008eb28e2e0bd57787dcbb71d38b2deb995b8edc35fa6852ab1d593f3d1

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI23082\api-ms-win-core-file-l2-1-0.dll

Filesize
18KB

MD5
bfffa7117fd9b1622c66d949bac3f1d7

SHA1
402b7b8f8dcfd321b1d12fc85a1ee5137a5569b2

SHA256
1ea267a2e6284f17dd548c6f2285e19f7edb15d6e737a55391140ce5cb95225e

SHA512
b319cc7b436b1be165cdf6ffcab8a87fe29de78f7e0b14c8f562be160481fb5483289bd5956fdc1d8660da7a3f86d8eede35c6cc2b7c3d4c852decf4b2dcdb7f

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI23082\api-ms-win-core-processthreads-l1-1-1.dll

Filesize
21KB

MD5
517eb9e2cb671ae49f99173d7f7ce43f

SHA1
4ccf38fed56166ddbf0b7efb4f5314c1f7d3b7ab

SHA256
57cc66bf0909c430364d35d92b64eb8b6a15dc201765403725fe323f39e8ac54

SHA512
492be2445b10f6bfe6c561c1fc6f5d1af6d1365b7449bc57a8f073b44ae49c88e66841f5c258b041547fcd33cbdcb4eb9dd3e24f0924db32720e51651e9286be

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI23082\api-ms-win-core-timezone-l1-1-0.dll

Filesize
21KB

MD5
d12403ee11359259ba2b0706e5e5111c

SHA1
03cc7827a30fd1dee38665c0cc993b4b533ac138

SHA256
f60e1751a6ac41f08e46480bf8e6521b41e2e427803996b32bdc5e78e9560781

SHA512
9004f4e59835af57f02e8d9625814db56f0e4a98467041da6f1367ef32366ad96e0338d48fff7cc65839a24148e2d9989883bcddc329d9f4d27cae3f843117d0

Download Submit
\Users\Admin\AppData\Local\Temp\checker.exe

Filesize
8.4MB

MD5
5c24a7339c93e4f88f01b036b6f6b55d

SHA1
094926f3583e252c5840850be9874704357c9d66

SHA256
5963d8504c59a3038bedee7a264a6ff34c0d54bff3393e368f45756e88602dde

SHA512
6927e89c216dfba569150f502792549981c90b51b6b9d811c245bf704397259f218674ae7762ac14dc4835b85b7da32aaedc4a8177e6539d84e1844a185b05e1

Download Submit
memory/2804-101-0x00000000743D0000-0x000000007497B000-memory.dmp

Filesize
5.7MB

Download
memory/2804-100-0x00000000743D0000-0x000000007497B000-memory.dmp

Filesize
5.7MB

Download
memory/2804-83-0x00000000743D1000-0x00000000743D2000-memory.dmp

Filesize
4KB

Download
memory/2804-197-0x00000000743D0000-0x000000007497B000-memory.dmp

Filesize
5.7MB

Download