njrat | 897e9a05e4275fe0a5597b918540a55a6a58558bde11400b6565f466285e1c09

General

Target

897e9a05e4275fe0a5597b918540a55a6a58558bde11400b6565f466285e1c09.exe
Size

29KB
MD5

7a5879743116ac6ec42719b1e9569908
SHA1

be79ab851ffac147cdbba39eb7415e253b2c00cb
SHA256

897e9a05e4275fe0a5597b918540a55a6a58558bde11400b6565f466285e1c09
SHA512

e78e665b8fafefe5985c6c164c0069a8d2a30651cc88f28ef773451f2e69e671fa5d8ddd3834dea36c7fb387593c9c46860d29a28a214b1d524a70b175470283
SSDEEP

384:GlWjNl7XNRoWGVulRVJ5zaImGmqDcI6ewdGBsbh0w4wlAokw9OhgOL1vYRGOZzkf:Gu7ToWGVKhcI4qN6exBKh0p29SgRMVd

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

HacKed

C2

127.0.0.1:1177

Mutex

08f4dc96bbb7af09d1a37fe35c75a42f

Attributes

reg_key
08f4dc96bbb7af09d1a37fe35c75a42f
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Executes dropped EXE 1 IoCs

pid	Process
828	explorer.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
764	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\08f4dc96bbb7af09d1a37fe35c75a42f.exe	explorer.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\08f4dc96bbb7af09d1a37fe35c75a42f.exe	explorer.exe

Loads dropped DLL 1 IoCs

pid	Process
1056	897e9a05e4275fe0a5597b918540a55a6a58558bde11400b6565f466285e1c09.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\08f4dc96bbb7af09d1a37fe35c75a42f = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\explorer.exe\" .."	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\08f4dc96bbb7af09d1a37fe35c75a42f = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\explorer.exe\" .."	explorer.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
828	explorer.exe
828	explorer.exe
828	explorer.exe
828	explorer.exe
828	explorer.exe
828	explorer.exe
828	explorer.exe
828	explorer.exe
828	explorer.exe
828	explorer.exe
828	explorer.exe
828	explorer.exe
828	explorer.exe
828	explorer.exe
828	explorer.exe
828	explorer.exe
828	explorer.exe
828	explorer.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	828	explorer.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1056 wrote to memory of 828	1056	897e9a05e4275fe0a5597b918540a55a6a58558bde11400b6565f466285e1c09.exe	26
PID 1056 wrote to memory of 828	1056	897e9a05e4275fe0a5597b918540a55a6a58558bde11400b6565f466285e1c09.exe	26
PID 1056 wrote to memory of 828	1056	897e9a05e4275fe0a5597b918540a55a6a58558bde11400b6565f466285e1c09.exe	26
PID 1056 wrote to memory of 828	1056	897e9a05e4275fe0a5597b918540a55a6a58558bde11400b6565f466285e1c09.exe	26
PID 828 wrote to memory of 764	828	explorer.exe	27
PID 828 wrote to memory of 764	828	explorer.exe	27
PID 828 wrote to memory of 764	828	explorer.exe	27
PID 828 wrote to memory of 764	828	explorer.exe	27

C:\Users\Admin\AppData\Local\Temp\897e9a05e4275fe0a5597b918540a55a6a58558bde11400b6565f466285e1c09.exe
"C:\Users\Admin\AppData\Local\Temp\897e9a05e4275fe0a5597b918540a55a6a58558bde11400b6565f466285e1c09.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1056
- C:\Users\Admin\AppData\Local\Temp\explorer.exe
  "C:\Users\Admin\AppData\Local\Temp\explorer.exe"
  2⤵
  - Executes dropped EXE
  - Drops startup file
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:828
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\explorer.exe" "explorer.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:764

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
29KB

MD5
7a5879743116ac6ec42719b1e9569908

SHA1
be79ab851ffac147cdbba39eb7415e253b2c00cb

SHA256
897e9a05e4275fe0a5597b918540a55a6a58558bde11400b6565f466285e1c09

SHA512
e78e665b8fafefe5985c6c164c0069a8d2a30651cc88f28ef773451f2e69e671fa5d8ddd3834dea36c7fb387593c9c46860d29a28a214b1d524a70b175470283

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

Filesize
29KB

MD5
7a5879743116ac6ec42719b1e9569908

SHA1
be79ab851ffac147cdbba39eb7415e253b2c00cb

SHA256
897e9a05e4275fe0a5597b918540a55a6a58558bde11400b6565f466285e1c09

SHA512
e78e665b8fafefe5985c6c164c0069a8d2a30651cc88f28ef773451f2e69e671fa5d8ddd3834dea36c7fb387593c9c46860d29a28a214b1d524a70b175470283

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

Filesize
29KB

MD5
7a5879743116ac6ec42719b1e9569908

SHA1
be79ab851ffac147cdbba39eb7415e253b2c00cb

SHA256
897e9a05e4275fe0a5597b918540a55a6a58558bde11400b6565f466285e1c09

SHA512
e78e665b8fafefe5985c6c164c0069a8d2a30651cc88f28ef773451f2e69e671fa5d8ddd3834dea36c7fb387593c9c46860d29a28a214b1d524a70b175470283

Download Submit
memory/828-62-0x0000000074E10000-0x00000000753BB000-memory.dmp

Filesize
5.7MB

Download
memory/828-64-0x0000000074E10000-0x00000000753BB000-memory.dmp

Filesize
5.7MB

Download
memory/1056-54-0x0000000075A71000-0x0000000075A73000-memory.dmp

Filesize
8KB

Download
memory/1056-61-0x0000000074E10000-0x00000000753BB000-memory.dmp

Filesize
5.7MB

Download

Analysis

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