njrat | d2ef2dc4e906d9f9701f233fd85624d4d4ede7e5aac364cb5dd4a6659dc2da2b

General

Target

d2ef2dc4e906d9f9701f233fd85624d4d4ede7e5aac364cb5dd4a6659dc2da2bN.exe
Size

5.2MB
MD5

b36ef0f4c7880832bb03508c6421efe0
SHA1

71d4534d1edf6a74369bb8abdbccd254255d5391
SHA256

d2ef2dc4e906d9f9701f233fd85624d4d4ede7e5aac364cb5dd4a6659dc2da2b
SHA512

c7dee9a9d2b51be81008182caa1f2f70f23b5c1ed4c815e44d6616bf58b44a5374699c650ac4711ffdd89a00bb766a5c3ddb1a464c74913bc504cb883f3a979d
SSDEEP

98304:JjhbDRAMazoYl0nxkUki2O/loAxf0Rd1izDicr2HTW5IpH0BzY:JjxDRAMoo20nxkUki2Eljx0RdM6cr2z3

Score

10^/10

njrat discovery trojan

Malware Config

Signatures

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	d2ef2dc4e906d9f9701f233fd85624d4d4ede7e5aac364cb5dd4a6659dc2da2bN.exe

Executes dropped EXE 2 IoCs

pid	Process
3260	Payload.exe
4992	XWormLoader.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1392	4992	WerFault.exe	87

System Location Discovery: System Language Discovery 1 TTPs 2 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	Payload.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	XWormLoader.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000_Classes\Local Settings	d2ef2dc4e906d9f9701f233fd85624d4d4ede7e5aac364cb5dd4a6659dc2da2bN.exe
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000_Classes\Local Settings	OpenWith.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	3260	Payload.exe
Token: 33	3260	Payload.exe
Token: SeIncBasePriorityPrivilege	3260	Payload.exe
Token: 33	3260	Payload.exe
Token: SeIncBasePriorityPrivilege	3260	Payload.exe
Token: 33	3260	Payload.exe
Token: SeIncBasePriorityPrivilege	3260	Payload.exe
Token: 33	3260	Payload.exe
Token: SeIncBasePriorityPrivilege	3260	Payload.exe
Token: 33	3260	Payload.exe
Token: SeIncBasePriorityPrivilege	3260	Payload.exe
Token: 33	3260	Payload.exe
Token: SeIncBasePriorityPrivilege	3260	Payload.exe
Token: 33	3260	Payload.exe
Token: SeIncBasePriorityPrivilege	3260	Payload.exe
Token: 33	3260	Payload.exe
Token: SeIncBasePriorityPrivilege	3260	Payload.exe
Token: 33	3260	Payload.exe
Token: SeIncBasePriorityPrivilege	3260	Payload.exe
Token: 33	3260	Payload.exe
Token: SeIncBasePriorityPrivilege	3260	Payload.exe
Token: 33	3260	Payload.exe
Token: SeIncBasePriorityPrivilege	3260	Payload.exe
Token: 33	3260	Payload.exe
Token: SeIncBasePriorityPrivilege	3260	Payload.exe
Token: 33	3260	Payload.exe
Token: SeIncBasePriorityPrivilege	3260	Payload.exe
Token: 33	3260	Payload.exe
Token: SeIncBasePriorityPrivilege	3260	Payload.exe
Token: 33	3260	Payload.exe
Token: SeIncBasePriorityPrivilege	3260	Payload.exe
Token: 33	3260	Payload.exe
Token: SeIncBasePriorityPrivilege	3260	Payload.exe
Token: 33	3260	Payload.exe
Token: SeIncBasePriorityPrivilege	3260	Payload.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1940	OpenWith.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2592 wrote to memory of 3260	2592	d2ef2dc4e906d9f9701f233fd85624d4d4ede7e5aac364cb5dd4a6659dc2da2bN.exe	86
PID 2592 wrote to memory of 3260	2592	d2ef2dc4e906d9f9701f233fd85624d4d4ede7e5aac364cb5dd4a6659dc2da2bN.exe	86
PID 2592 wrote to memory of 3260	2592	d2ef2dc4e906d9f9701f233fd85624d4d4ede7e5aac364cb5dd4a6659dc2da2bN.exe	86
PID 2592 wrote to memory of 4992	2592	d2ef2dc4e906d9f9701f233fd85624d4d4ede7e5aac364cb5dd4a6659dc2da2bN.exe	87
PID 2592 wrote to memory of 4992	2592	d2ef2dc4e906d9f9701f233fd85624d4d4ede7e5aac364cb5dd4a6659dc2da2bN.exe	87
PID 2592 wrote to memory of 4992	2592	d2ef2dc4e906d9f9701f233fd85624d4d4ede7e5aac364cb5dd4a6659dc2da2bN.exe	87

C:\Users\Admin\AppData\Local\Temp\d2ef2dc4e906d9f9701f233fd85624d4d4ede7e5aac364cb5dd4a6659dc2da2bN.exe
"C:\Users\Admin\AppData\Local\Temp\d2ef2dc4e906d9f9701f233fd85624d4d4ede7e5aac364cb5dd4a6659dc2da2bN.exe"
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2592
- C:\Users\Admin\AppData\Local\Temp\Payload.exe
  "C:\Users\Admin\AppData\Local\Temp\Payload.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:3260
- C:\Users\Admin\AppData\Local\Temp\XWormLoader.exe
  "C:\Users\Admin\AppData\Local\Temp\XWormLoader.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4992
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4992 -s 884
    3⤵
    - Program crash
    PID:1392

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:1940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 4992 -ip 4992
1⤵
PID:1012

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
55KB

MD5
e595ad9e8bacf2d7b0d91ab5117cd35c

SHA1
c7a9ab7cf7d3cbed1808ce608cd4a949e7114778

SHA256
db11890b5a06a9856e04a0556be9711cefc49dad23328b51b94cf75fe8d26cd9

SHA512
e1eb45740c1fe871b4179b4450e18ecd381bc27eaa46da843e1cc5bdf46b4c58b1e5690a22539a287e2c0196dd572d662a4c3757c0751fa92fb3a62660452d07

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

Filesize
101KB

MD5
39d81ca537ceb52632fbb2e975c3ee2f

SHA1
0a3814bd3ccea28b144983daab277d72313524e4

SHA256
76c4d61afdebf279316b40e1ca3c56996b16d760aa080d3121d6982f0e61d8e7

SHA512
18f7acf9e7b992e95f06ab1c96f017a6e7acde36c1e7c1ff254853a1bfcde65abcdaa797b36071b9349e83aa2c0a45c6dfb2d637c153b53c66fc92066f6d4f9a

Download Submit
memory/2592-46-0x00007FFF45A10000-0x00007FFF464D1000-memory.dmp

Filesize
10.8MB

Download
memory/2592-3-0x00007FFF45A10000-0x00007FFF464D1000-memory.dmp

Filesize
10.8MB

Download
memory/2592-1-0x00000000000A0000-0x00000000005E0000-memory.dmp

Filesize
5.2MB

Download
memory/2592-0-0x00007FFF45A13000-0x00007FFF45A15000-memory.dmp

Filesize
8KB

Download
memory/3260-23-0x00000000753D2000-0x00000000753D3000-memory.dmp

Filesize
4KB

Download
memory/3260-25-0x00000000753D0000-0x0000000075981000-memory.dmp

Filesize
5.7MB

Download
memory/3260-26-0x00000000753D0000-0x0000000075981000-memory.dmp

Filesize
5.7MB

Download
memory/3260-47-0x00000000753D2000-0x00000000753D3000-memory.dmp

Filesize
4KB

Download
memory/3260-48-0x00000000753D0000-0x0000000075981000-memory.dmp

Filesize
5.7MB

Download
memory/3260-49-0x00000000753D0000-0x0000000075981000-memory.dmp

Filesize
5.7MB

Download
memory/4992-27-0x0000000000290000-0x00000000002AE000-memory.dmp

Filesize
120KB

Download

Analysis

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