njrat | 3ece68411637a9f876d1576d7486cb553efccf1891959ab7b005ef68b296978e

General

Target

3ece68411637a9f876d1576d7486cb553efccf1891959ab7b005ef68b296978e.exe
Size

1.1MB
MD5

6db1a6346a3b25ecbffa2935fb14ec80
SHA1

62f8dc23aa747f01b4b88737de9bbdce907e3bdf
SHA256

3ece68411637a9f876d1576d7486cb553efccf1891959ab7b005ef68b296978e
SHA512

f030168a13c97ae14d24c89bd4076baf242a310d1618302bc391da0f594f0c6ff1e53458c857f3a1ee540809d91a8c4ffba31dffe1eab70a7b8f891b4bf727c6
SSDEEP

12288:w4vSyN7kiUo/t1kI83H6HphukQteSrN7kiUo/t1k:w+97eI83EUeC7e

Score

10^/10

njrat victim evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Victim

C2

android321.no-ip.info:3030

Mutex

7d9b0bb0f2b1211165719becfc83c7dd

Attributes

reg_key
7d9b0bb0f2b1211165719becfc83c7dd
splitter
|'|'|

Signatures

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

Executes dropped EXE 3 IoCs

pid	Process
5112	SERVER.EXE
1288	SMS ANNIHILATOR.EXE
808	serverhost.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
3360	netsh.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	SERVER.EXE
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	3ece68411637a9f876d1576d7486cb553efccf1891959ab7b005ef68b296978e.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7d9b0bb0f2b1211165719becfc83c7dd.exe	serverhost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7d9b0bb0f2b1211165719becfc83c7dd.exe	serverhost.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-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7d9b0bb0f2b1211165719becfc83c7dd = "\"C:\\Users\\Admin\\AppData\\Roaming\\serverhost.exe\" .."	serverhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\7d9b0bb0f2b1211165719becfc83c7dd = "\"C:\\Users\\Admin\\AppData\\Roaming\\serverhost.exe\" .."	serverhost.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	1288	SMS ANNIHILATOR.EXE
Token: SeDebugPrivilege	808	serverhost.exe
Token: 33	808	serverhost.exe
Token: SeIncBasePriorityPrivilege	808	serverhost.exe
Token: 33	808	serverhost.exe
Token: SeIncBasePriorityPrivilege	808	serverhost.exe
Token: 33	808	serverhost.exe
Token: SeIncBasePriorityPrivilege	808	serverhost.exe
Token: 33	808	serverhost.exe
Token: SeIncBasePriorityPrivilege	808	serverhost.exe
Token: 33	808	serverhost.exe
Token: SeIncBasePriorityPrivilege	808	serverhost.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4920 wrote to memory of 5112	4920	3ece68411637a9f876d1576d7486cb553efccf1891959ab7b005ef68b296978e.exe	83
PID 4920 wrote to memory of 5112	4920	3ece68411637a9f876d1576d7486cb553efccf1891959ab7b005ef68b296978e.exe	83
PID 4920 wrote to memory of 5112	4920	3ece68411637a9f876d1576d7486cb553efccf1891959ab7b005ef68b296978e.exe	83
PID 4920 wrote to memory of 1288	4920	3ece68411637a9f876d1576d7486cb553efccf1891959ab7b005ef68b296978e.exe	84
PID 4920 wrote to memory of 1288	4920	3ece68411637a9f876d1576d7486cb553efccf1891959ab7b005ef68b296978e.exe	84
PID 4920 wrote to memory of 1288	4920	3ece68411637a9f876d1576d7486cb553efccf1891959ab7b005ef68b296978e.exe	84
PID 5112 wrote to memory of 808	5112	SERVER.EXE	85
PID 5112 wrote to memory of 808	5112	SERVER.EXE	85
PID 5112 wrote to memory of 808	5112	SERVER.EXE	85
PID 808 wrote to memory of 3360	808	serverhost.exe	88
PID 808 wrote to memory of 3360	808	serverhost.exe	88
PID 808 wrote to memory of 3360	808	serverhost.exe	88

C:\Users\Admin\AppData\Local\Temp\3ece68411637a9f876d1576d7486cb553efccf1891959ab7b005ef68b296978e.exe
"C:\Users\Admin\AppData\Local\Temp\3ece68411637a9f876d1576d7486cb553efccf1891959ab7b005ef68b296978e.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4920
- C:\Users\Admin\AppData\Roaming\SERVER.EXE
  "C:\Users\Admin\AppData\Roaming\SERVER.EXE"
  2⤵
  - Executes dropped EXE
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:5112
- - C:\Users\Admin\AppData\Roaming\serverhost.exe
    "C:\Users\Admin\AppData\Roaming\serverhost.exe"
    3⤵
    - Executes dropped EXE
    - Drops startup file
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:808
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\serverhost.exe" "serverhost.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      PID:3360
- C:\Users\Admin\AppData\Roaming\SMS ANNIHILATOR.EXE
  "C:\Users\Admin\AppData\Roaming\SMS ANNIHILATOR.EXE"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1288

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

Web Service

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\SERVER.EXE

Filesize
209KB

MD5
fbf2ec27ec5d8b571431797a5630645a

SHA1
36372eace48d063d67f3cc861ded0dcf33ae6455

SHA256
c1a7d7642575bbc4df2a27c120df821a8db0ecf941e97b816aea63de211e6fa5

SHA512
eee3d7846a97aca92a221af0c326c82865f1d10d40759a0de791ec278bea23dac6ee11ede543a2a33ec50c3e3212fd43a79994228b9bf201774040f2ac9f82da

Download Submit
C:\Users\Admin\AppData\Roaming\SERVER.EXE

Filesize
209KB

MD5
fbf2ec27ec5d8b571431797a5630645a

SHA1
36372eace48d063d67f3cc861ded0dcf33ae6455

SHA256
c1a7d7642575bbc4df2a27c120df821a8db0ecf941e97b816aea63de211e6fa5

SHA512
eee3d7846a97aca92a221af0c326c82865f1d10d40759a0de791ec278bea23dac6ee11ede543a2a33ec50c3e3212fd43a79994228b9bf201774040f2ac9f82da

Download Submit
C:\Users\Admin\AppData\Roaming\SMS ANNIHILATOR.EXE

Filesize
662KB

MD5
405e37238d257bccd1c6ba3f1ff5fcc4

SHA1
9ccbef96db4020a5260e30d54887a413449e9fed

SHA256
37e7bab0ce17226497b66efd18d72e5cf3c2382a099feab79f5aca828046d761

SHA512
309de0c762829b2e1ad41e1fe4190f33fbf386e30e50f22a6da87cff29099ea086d5de25c72794953639158f5d70e489acf48c51b7ee547d8aac2b831b9adf58

Download Submit
C:\Users\Admin\AppData\Roaming\SMS ANNIHILATOR.EXE

Filesize
662KB

MD5
405e37238d257bccd1c6ba3f1ff5fcc4

SHA1
9ccbef96db4020a5260e30d54887a413449e9fed

SHA256
37e7bab0ce17226497b66efd18d72e5cf3c2382a099feab79f5aca828046d761

SHA512
309de0c762829b2e1ad41e1fe4190f33fbf386e30e50f22a6da87cff29099ea086d5de25c72794953639158f5d70e489acf48c51b7ee547d8aac2b831b9adf58

Download Submit
C:\Users\Admin\AppData\Roaming\serverhost.exe

Filesize
209KB

MD5
fbf2ec27ec5d8b571431797a5630645a

SHA1
36372eace48d063d67f3cc861ded0dcf33ae6455

SHA256
c1a7d7642575bbc4df2a27c120df821a8db0ecf941e97b816aea63de211e6fa5

SHA512
eee3d7846a97aca92a221af0c326c82865f1d10d40759a0de791ec278bea23dac6ee11ede543a2a33ec50c3e3212fd43a79994228b9bf201774040f2ac9f82da

Download Submit
C:\Users\Admin\AppData\Roaming\serverhost.exe

Filesize
209KB

MD5
fbf2ec27ec5d8b571431797a5630645a

SHA1
36372eace48d063d67f3cc861ded0dcf33ae6455

SHA256
c1a7d7642575bbc4df2a27c120df821a8db0ecf941e97b816aea63de211e6fa5

SHA512
eee3d7846a97aca92a221af0c326c82865f1d10d40759a0de791ec278bea23dac6ee11ede543a2a33ec50c3e3212fd43a79994228b9bf201774040f2ac9f82da

Download Submit
memory/808-149-0x0000000075670000-0x0000000075C21000-memory.dmp

Filesize
5.7MB

Download
memory/808-148-0x0000000075670000-0x0000000075C21000-memory.dmp

Filesize
5.7MB

Download
memory/1288-144-0x0000000004C00000-0x0000000004C0A000-memory.dmp

Filesize
40KB

Download
memory/1288-142-0x0000000004C30000-0x0000000004CC2000-memory.dmp

Filesize
584KB

Download
memory/1288-138-0x0000000000100000-0x00000000001AC000-memory.dmp

Filesize
688KB

Download
memory/1288-141-0x0000000005140000-0x00000000056E4000-memory.dmp

Filesize
5.6MB

Download
memory/1288-139-0x0000000004AF0000-0x0000000004B8C000-memory.dmp

Filesize
624KB

Download
memory/1288-150-0x00000000050E0000-0x0000000005136000-memory.dmp

Filesize
344KB

Download
memory/5112-143-0x0000000075670000-0x0000000075C21000-memory.dmp

Filesize
5.7MB

Download
memory/5112-140-0x0000000075670000-0x0000000075C21000-memory.dmp

Filesize
5.7MB

Download
memory/5112-151-0x0000000075670000-0x0000000075C21000-memory.dmp

Filesize
5.7MB

Download

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