njrat | da09dcb834819e8acd123a7fb06e38c8dd584522753003cfa9d501df0a2b3a83

Analysis

max time kernel
301s
max time network
310s
platform
windows10_x64
resource
win10v20210408
submitted
31-08-2021 02:16

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General

Target

456-Invoice.js
Size

166KB
MD5

c000b245272ad81b74958689e4b3352e
SHA1

ce74042c88b852c6a5b00186096f0ce42afc38b6
SHA256

f19462db16c63e8c26095f8ee024340649e0b2cb26a9ba9d08691b6d01e4f2be
SHA512

f9b3f811a4be2bee356d9265d15a20a00d41b4a5933d8ab5adcf683ce23cab0ac0b6a7cbdbc97abb509385082aa038d11f1b4f8e502f61e6a42535bbd4df155c

Score

10^/10

njrat vjw0rm succeed persistence suricata trojan worm

Malware Config

Extracted

Family

njrat

Version

0.7.3

Botnet

SUCCEED

194.5.97.156:7654

Mutex

Client.exe

Attributes

reg_key
Client.exe
splitter
0149266241@@@

Signatures

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm
njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
suricata

Blocklisted process makes network request 36 IoCs

Processes:

wscript.exe

flow	pid	process
10	3692	wscript.exe
16	3692	wscript.exe
20	3692	wscript.exe
21	3692	wscript.exe
22	3692	wscript.exe
23	3692	wscript.exe
24	3692	wscript.exe
25	3692	wscript.exe
26	3692	wscript.exe
27	3692	wscript.exe
28	3692	wscript.exe
29	3692	wscript.exe
30	3692	wscript.exe
31	3692	wscript.exe
32	3692	wscript.exe
33	3692	wscript.exe
34	3692	wscript.exe
35	3692	wscript.exe
36	3692	wscript.exe
37	3692	wscript.exe
38	3692	wscript.exe
39	3692	wscript.exe
40	3692	wscript.exe
41	3692	wscript.exe
42	3692	wscript.exe
43	3692	wscript.exe
44	3692	wscript.exe
45	3692	wscript.exe
46	3692	wscript.exe
47	3692	wscript.exe
48	3692	wscript.exe
49	3692	wscript.exe
50	3692	wscript.exe
51	3692	wscript.exe
52	3692	wscript.exe
53	3692	wscript.exe

Executes dropped EXE 6 IoCs

Processes:

New Client.exeNew Client.exeNew Client.exeNew Client.exeNew Client.exeNew Client.exe

pid process

4228 New Client.exe
1680 New Client.exe
2828 New Client.exe
1848 New Client.exe
4640 New Client.exe
4732 New Client.exe

pid	process
4228	New Client.exe
1680	New Client.exe
2828	New Client.exe
1848	New Client.exe
4640	New Client.exe
4732	New Client.exe

Drops startup file 2 IoCs

Processes:

wscript.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\YgrKtkfSUZ.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\YgrKtkfSUZ.js	wscript.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wscript.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\YgrKtkfSUZ.js\""	wscript.exe

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

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 6 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exe

pid process

4548 schtasks.exe
2972 schtasks.exe
936 schtasks.exe
500 schtasks.exe
2172 schtasks.exe
4348 schtasks.exe

pid	process
4548	schtasks.exe
2972	schtasks.exe
936	schtasks.exe
500	schtasks.exe
2172	schtasks.exe
4348	schtasks.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

New Client.exe

description	pid	process
Token: SeDebugPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe
Token: SeIncBasePriorityPrivilege	4228	New Client.exe
Token: 33	4228	New Client.exe

Suspicious use of WriteProcessMemory 41 IoCs

Processes:

wscript.exeNew Client.exeNew Client.exeNew Client.exeNew Client.exeNew Client.exeNew Client.exe

description	pid	process	target process
PID 4796 wrote to memory of 3692	4796	wscript.exe	wscript.exe
PID 4796 wrote to memory of 3692	4796	wscript.exe	wscript.exe
PID 4796 wrote to memory of 4228	4796	wscript.exe	New Client.exe
PID 4796 wrote to memory of 4228	4796	wscript.exe	New Client.exe
PID 4796 wrote to memory of 4228	4796	wscript.exe	New Client.exe
PID 4228 wrote to memory of 3060	4228	New Client.exe	schtasks.exe
PID 4228 wrote to memory of 3060	4228	New Client.exe	schtasks.exe
PID 4228 wrote to memory of 3060	4228	New Client.exe	schtasks.exe
PID 4228 wrote to memory of 500	4228	New Client.exe	schtasks.exe
PID 4228 wrote to memory of 500	4228	New Client.exe	schtasks.exe
PID 4228 wrote to memory of 500	4228	New Client.exe	schtasks.exe
PID 1680 wrote to memory of 1820	1680	New Client.exe	schtasks.exe
PID 1680 wrote to memory of 1820	1680	New Client.exe	schtasks.exe
PID 1680 wrote to memory of 1820	1680	New Client.exe	schtasks.exe
PID 1680 wrote to memory of 2172	1680	New Client.exe	schtasks.exe
PID 1680 wrote to memory of 2172	1680	New Client.exe	schtasks.exe
PID 1680 wrote to memory of 2172	1680	New Client.exe	schtasks.exe
PID 2828 wrote to memory of 3308	2828	New Client.exe	schtasks.exe
PID 2828 wrote to memory of 3308	2828	New Client.exe	schtasks.exe
PID 2828 wrote to memory of 3308	2828	New Client.exe	schtasks.exe
PID 2828 wrote to memory of 4348	2828	New Client.exe	schtasks.exe
PID 2828 wrote to memory of 4348	2828	New Client.exe	schtasks.exe
PID 2828 wrote to memory of 4348	2828	New Client.exe	schtasks.exe
PID 1848 wrote to memory of 4564	1848	New Client.exe	schtasks.exe
PID 1848 wrote to memory of 4564	1848	New Client.exe	schtasks.exe
PID 1848 wrote to memory of 4564	1848	New Client.exe	schtasks.exe
PID 1848 wrote to memory of 4548	1848	New Client.exe	schtasks.exe
PID 1848 wrote to memory of 4548	1848	New Client.exe	schtasks.exe
PID 1848 wrote to memory of 4548	1848	New Client.exe	schtasks.exe
PID 4640 wrote to memory of 4748	4640	New Client.exe	schtasks.exe
PID 4640 wrote to memory of 4748	4640	New Client.exe	schtasks.exe
PID 4640 wrote to memory of 4748	4640	New Client.exe	schtasks.exe
PID 4640 wrote to memory of 2972	4640	New Client.exe	schtasks.exe
PID 4640 wrote to memory of 2972	4640	New Client.exe	schtasks.exe
PID 4640 wrote to memory of 2972	4640	New Client.exe	schtasks.exe
PID 4732 wrote to memory of 200	4732	New Client.exe	schtasks.exe
PID 4732 wrote to memory of 200	4732	New Client.exe	schtasks.exe
PID 4732 wrote to memory of 200	4732	New Client.exe	schtasks.exe
PID 4732 wrote to memory of 936	4732	New Client.exe	schtasks.exe
PID 4732 wrote to memory of 936	4732	New Client.exe	schtasks.exe
PID 4732 wrote to memory of 936	4732	New Client.exe	schtasks.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\456-Invoice.js
1⤵
- Suspicious use of WriteProcessMemory
PID:4796

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\YgrKtkfSUZ.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:3692

C:\Users\Admin\AppData\Local\Temp\New Client.exe
"C:\Users\Admin\AppData\Local\Temp\New Client.exe"
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4228

C:\Windows\SysWOW64\schtasks.exe
schtasks /Delete /tn NYAN /F
3⤵
PID:3060

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /tn NYAN /tr "C:\Users\Admin\AppData\Local\Temp\New Client.exe" /sc minute /mo 1
3⤵
- Creates scheduled task(s)
PID:500

C:\Users\Admin\AppData\Local\Temp\New Client.exe
"C:\Users\Admin\AppData\Local\Temp\New Client.exe"
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1680

C:\Windows\SysWOW64\schtasks.exe
schtasks /Delete /tn NYAN /F
2⤵
PID:1820

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /tn NYAN /tr "C:\Users\Admin\AppData\Local\Temp\New Client.exe" /sc minute /mo 1
2⤵
- Creates scheduled task(s)
PID:2172

C:\Users\Admin\AppData\Local\Temp\New Client.exe
"C:\Users\Admin\AppData\Local\Temp\New Client.exe"
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2828

C:\Windows\SysWOW64\schtasks.exe
schtasks /Delete /tn NYAN /F
2⤵
PID:3308

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /tn NYAN /tr "C:\Users\Admin\AppData\Local\Temp\New Client.exe" /sc minute /mo 1
2⤵
- Creates scheduled task(s)
PID:4348

C:\Users\Admin\AppData\Local\Temp\New Client.exe
"C:\Users\Admin\AppData\Local\Temp\New Client.exe"
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1848

C:\Windows\SysWOW64\schtasks.exe
schtasks /Delete /tn NYAN /F
2⤵
PID:4564

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /tn NYAN /tr "C:\Users\Admin\AppData\Local\Temp\New Client.exe" /sc minute /mo 1
2⤵
- Creates scheduled task(s)
PID:4548

C:\Users\Admin\AppData\Local\Temp\New Client.exe
"C:\Users\Admin\AppData\Local\Temp\New Client.exe"
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4640

C:\Windows\SysWOW64\schtasks.exe
schtasks /Delete /tn NYAN /F
2⤵
PID:4748

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /tn NYAN /tr "C:\Users\Admin\AppData\Local\Temp\New Client.exe" /sc minute /mo 1
2⤵
- Creates scheduled task(s)
PID:2972

C:\Users\Admin\AppData\Local\Temp\New Client.exe
"C:\Users\Admin\AppData\Local\Temp\New Client.exe"
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4732

C:\Windows\SysWOW64\schtasks.exe
schtasks /Delete /tn NYAN /F
2⤵
PID:200

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /tn NYAN /tr "C:\Users\Admin\AppData\Local\Temp\New Client.exe" /sc minute /mo 1
2⤵
- Creates scheduled task(s)
PID:936

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\New Client.exe.log
MD5
d0fb19799333de6477392550871cc975

SHA1
8643b6941fd73f8f40811116807a7a3338c7f4ff

SHA256
bbe01f6b46b8411243d725ebd189c36447430c5acc6ef341fd265c6ee3e566cc

SHA512
5622fe656592834d0004b534defdf8d61ba0afc7d90f6ff4a4e56db2d3ee33a22b0abb9a2f5c1d579b5fa5e435abe8d6d4d7062a14a3967e69ae895d9ba92343

Download Submit
C:\Users\Admin\AppData\Local\Temp\New Client.exe
MD5
4c1c9fdf28215ae2f0f681349b66bbff

SHA1
8ab23d0ee7a361c8f29622fa9ba05f6644e24e9a

SHA256
50842fb63d2308152a3d6c25bf5c45b2a71906193e299975401e8cc5189abd7a

SHA512
f0415187e7f7dc15546ea4bc8e6c53281aa407df064a2d73e0360e796caf807430d7ab565ba842e8d1c58c1bc35eefffcd868042c65357906a625b92064e96c5

Download Submit
C:\Users\Admin\AppData\Local\Temp\New Client.exe
MD5
4c1c9fdf28215ae2f0f681349b66bbff

SHA1
8ab23d0ee7a361c8f29622fa9ba05f6644e24e9a

SHA256
50842fb63d2308152a3d6c25bf5c45b2a71906193e299975401e8cc5189abd7a

SHA512
f0415187e7f7dc15546ea4bc8e6c53281aa407df064a2d73e0360e796caf807430d7ab565ba842e8d1c58c1bc35eefffcd868042c65357906a625b92064e96c5

Download Submit
C:\Users\Admin\AppData\Local\Temp\New Client.exe
MD5
4c1c9fdf28215ae2f0f681349b66bbff

SHA1
8ab23d0ee7a361c8f29622fa9ba05f6644e24e9a

SHA256
50842fb63d2308152a3d6c25bf5c45b2a71906193e299975401e8cc5189abd7a

SHA512
f0415187e7f7dc15546ea4bc8e6c53281aa407df064a2d73e0360e796caf807430d7ab565ba842e8d1c58c1bc35eefffcd868042c65357906a625b92064e96c5

Download Submit
C:\Users\Admin\AppData\Local\Temp\New Client.exe
MD5
4c1c9fdf28215ae2f0f681349b66bbff

SHA1
8ab23d0ee7a361c8f29622fa9ba05f6644e24e9a

SHA256
50842fb63d2308152a3d6c25bf5c45b2a71906193e299975401e8cc5189abd7a

SHA512
f0415187e7f7dc15546ea4bc8e6c53281aa407df064a2d73e0360e796caf807430d7ab565ba842e8d1c58c1bc35eefffcd868042c65357906a625b92064e96c5

Download Submit
C:\Users\Admin\AppData\Local\Temp\New Client.exe
MD5
4c1c9fdf28215ae2f0f681349b66bbff

SHA1
8ab23d0ee7a361c8f29622fa9ba05f6644e24e9a

SHA256
50842fb63d2308152a3d6c25bf5c45b2a71906193e299975401e8cc5189abd7a

SHA512
f0415187e7f7dc15546ea4bc8e6c53281aa407df064a2d73e0360e796caf807430d7ab565ba842e8d1c58c1bc35eefffcd868042c65357906a625b92064e96c5

Download Submit
C:\Users\Admin\AppData\Local\Temp\New Client.exe
MD5
4c1c9fdf28215ae2f0f681349b66bbff

SHA1
8ab23d0ee7a361c8f29622fa9ba05f6644e24e9a

SHA256
50842fb63d2308152a3d6c25bf5c45b2a71906193e299975401e8cc5189abd7a

SHA512
f0415187e7f7dc15546ea4bc8e6c53281aa407df064a2d73e0360e796caf807430d7ab565ba842e8d1c58c1bc35eefffcd868042c65357906a625b92064e96c5

Download Submit
C:\Users\Admin\AppData\Local\Temp\New Client.exe
MD5
4c1c9fdf28215ae2f0f681349b66bbff

SHA1
8ab23d0ee7a361c8f29622fa9ba05f6644e24e9a

SHA256
50842fb63d2308152a3d6c25bf5c45b2a71906193e299975401e8cc5189abd7a

SHA512
f0415187e7f7dc15546ea4bc8e6c53281aa407df064a2d73e0360e796caf807430d7ab565ba842e8d1c58c1bc35eefffcd868042c65357906a625b92064e96c5

Download Submit
C:\Users\Admin\AppData\Roaming\YgrKtkfSUZ.js
MD5
4e1188211bc0a1f728e5a97cf47a7105

SHA1
740914054d0824fbacf494855eb9121355a49740

SHA256
ada3ac15b6fd893f1f8b1a4ad1f6d4cbc86c566c0d5a639c4dda15f4727f2cee

SHA512
b37d9c26c44b45e89a4732439480bf6d09e292fb85ef054a4a591cb7228eeef0f8595aeaf12824771c033297ea218996d6e4c9006972c15a58d02b89365b2a14

Download Submit
memory/200-141-0x0000000000000000-mapping.dmp

Download
memory/500-121-0x0000000000000000-mapping.dmp

Download
memory/936-142-0x0000000000000000-mapping.dmp

Download
memory/1680-125-0x0000000000F30000-0x0000000000F31000-memory.dmp

Filesize
4KB

Download
memory/1820-123-0x0000000000000000-mapping.dmp

Download
memory/1848-134-0x0000000000B00000-0x0000000000C4A000-memory.dmp

Filesize
1.3MB

Download
memory/2172-124-0x0000000000000000-mapping.dmp

Download
memory/2828-130-0x0000000002980000-0x0000000002981000-memory.dmp

Filesize
4KB

Download
memory/2972-138-0x0000000000000000-mapping.dmp

Download
memory/3060-120-0x0000000000000000-mapping.dmp

Download
memory/3308-128-0x0000000000000000-mapping.dmp

Download
memory/3692-114-0x0000000000000000-mapping.dmp

Download
memory/4228-135-0x0000000002F11000-0x0000000002F12000-memory.dmp

Filesize
4KB

Download
memory/4228-119-0x0000000002F10000-0x0000000002F11000-memory.dmp

Filesize
4KB

Download
memory/4228-116-0x0000000000000000-mapping.dmp

Download
memory/4348-129-0x0000000000000000-mapping.dmp

Download
memory/4548-133-0x0000000000000000-mapping.dmp

Download
memory/4564-132-0x0000000000000000-mapping.dmp

Download
memory/4640-139-0x0000000001520000-0x0000000001521000-memory.dmp

Filesize
4KB

Download
memory/4732-143-0x0000000002980000-0x0000000002981000-memory.dmp

Filesize
4KB

Download
memory/4748-137-0x0000000000000000-mapping.dmp

Download