njrat | 5b88f3a2527be5fe528962f7a84102e8415987d0f9648be382897da8511b8ba3

General

Target

1936-62-0x0000000000180000-0x00000000001C0000-memory.exe
Size

256KB
MD5

448c9859b4e7e9c79e6ea34402f1aa69
SHA1

f4044d5925f5dd4ba15cd9be1de1e408069410d2
SHA256

5b88f3a2527be5fe528962f7a84102e8415987d0f9648be382897da8511b8ba3
SHA512

d29cd9be1b63d848890829abe9742e2041dcea4c68d886e14c072c696a004673bdd72a83f8423c7ea4d59ff313bf0d9a042d278a8892be030b3176bb6d90675b
SSDEEP

6144:mp3luhhPpL4hKXkEAk+p8pggenVd4hE1slKBYu:mdAL1u1a+qggenVOS1sl

Score

10^/10

njrat activation evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

activation

C2

jesus141.ddns.net:1177

Mutex

6d25f7965ae661e73d43f8d5326b3959

Attributes

reg_key
6d25f7965ae661e73d43f8d5326b3959
splitter
Y262SUCZ4UJJ

Signatures

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

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
3656	netsh.exe

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-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation	1936-62-0x0000000000180000-0x00000000001C0000-memory.exe

Executes dropped EXE 1 IoCs

pid	Process
1040	Windows svchost.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-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\6d25f7965ae661e73d43f8d5326b3959 = "\"C:\\Users\\Admin\\AppData\\Roaming\\Windows svchost.exe\" .."	Windows svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\6d25f7965ae661e73d43f8d5326b3959 = "\"C:\\Users\\Admin\\AppData\\Roaming\\Windows svchost.exe\" .."	Windows svchost.exe

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 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	1040	Windows svchost.exe
Token: 33	1040	Windows svchost.exe
Token: SeIncBasePriorityPrivilege	1040	Windows svchost.exe
Token: 33	1040	Windows svchost.exe
Token: SeIncBasePriorityPrivilege	1040	Windows svchost.exe
Token: 33	1040	Windows svchost.exe
Token: SeIncBasePriorityPrivilege	1040	Windows svchost.exe
Token: 33	1040	Windows svchost.exe
Token: SeIncBasePriorityPrivilege	1040	Windows svchost.exe
Token: 33	1040	Windows svchost.exe
Token: SeIncBasePriorityPrivilege	1040	Windows svchost.exe
Token: 33	1040	Windows svchost.exe
Token: SeIncBasePriorityPrivilege	1040	Windows svchost.exe
Token: 33	1040	Windows svchost.exe
Token: SeIncBasePriorityPrivilege	1040	Windows svchost.exe
Token: 33	1040	Windows svchost.exe
Token: SeIncBasePriorityPrivilege	1040	Windows svchost.exe
Token: 33	1040	Windows svchost.exe
Token: SeIncBasePriorityPrivilege	1040	Windows svchost.exe
Token: 33	1040	Windows svchost.exe
Token: SeIncBasePriorityPrivilege	1040	Windows svchost.exe
Token: 33	1040	Windows svchost.exe
Token: SeIncBasePriorityPrivilege	1040	Windows svchost.exe
Token: 33	1040	Windows svchost.exe
Token: SeIncBasePriorityPrivilege	1040	Windows svchost.exe
Token: 33	1040	Windows svchost.exe
Token: SeIncBasePriorityPrivilege	1040	Windows svchost.exe
Token: 33	1040	Windows svchost.exe
Token: SeIncBasePriorityPrivilege	1040	Windows svchost.exe
Token: 33	1040	Windows svchost.exe
Token: SeIncBasePriorityPrivilege	1040	Windows svchost.exe
Token: 33	1040	Windows svchost.exe
Token: SeIncBasePriorityPrivilege	1040	Windows svchost.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 392 wrote to memory of 1040	392	1936-62-0x0000000000180000-0x00000000001C0000-memory.exe	87
PID 392 wrote to memory of 1040	392	1936-62-0x0000000000180000-0x00000000001C0000-memory.exe	87
PID 392 wrote to memory of 1040	392	1936-62-0x0000000000180000-0x00000000001C0000-memory.exe	87
PID 1040 wrote to memory of 3656	1040	Windows svchost.exe	91
PID 1040 wrote to memory of 3656	1040	Windows svchost.exe	91
PID 1040 wrote to memory of 3656	1040	Windows svchost.exe	91

C:\Users\Admin\AppData\Local\Temp\1936-62-0x0000000000180000-0x00000000001C0000-memory.exe
"C:\Users\Admin\AppData\Local\Temp\1936-62-0x0000000000180000-0x00000000001C0000-memory.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:392
- C:\Users\Admin\AppData\Roaming\Windows svchost.exe
  "C:\Users\Admin\AppData\Roaming\Windows svchost.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1040
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\Windows svchost.exe" "Windows svchost.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:3656

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Windows svchost.exe

Filesize
256KB

MD5
448c9859b4e7e9c79e6ea34402f1aa69

SHA1
f4044d5925f5dd4ba15cd9be1de1e408069410d2

SHA256
5b88f3a2527be5fe528962f7a84102e8415987d0f9648be382897da8511b8ba3

SHA512
d29cd9be1b63d848890829abe9742e2041dcea4c68d886e14c072c696a004673bdd72a83f8423c7ea4d59ff313bf0d9a042d278a8892be030b3176bb6d90675b

Download Submit
C:\Users\Admin\AppData\Roaming\Windows svchost.exe

Filesize
256KB

MD5
448c9859b4e7e9c79e6ea34402f1aa69

SHA1
f4044d5925f5dd4ba15cd9be1de1e408069410d2

SHA256
5b88f3a2527be5fe528962f7a84102e8415987d0f9648be382897da8511b8ba3

SHA512
d29cd9be1b63d848890829abe9742e2041dcea4c68d886e14c072c696a004673bdd72a83f8423c7ea4d59ff313bf0d9a042d278a8892be030b3176bb6d90675b

Download Submit
C:\Users\Admin\AppData\Roaming\Windows svchost.exe

Filesize
256KB

MD5
448c9859b4e7e9c79e6ea34402f1aa69

SHA1
f4044d5925f5dd4ba15cd9be1de1e408069410d2

SHA256
5b88f3a2527be5fe528962f7a84102e8415987d0f9648be382897da8511b8ba3

SHA512
d29cd9be1b63d848890829abe9742e2041dcea4c68d886e14c072c696a004673bdd72a83f8423c7ea4d59ff313bf0d9a042d278a8892be030b3176bb6d90675b

Download Submit
memory/392-134-0x0000000001810000-0x0000000001820000-memory.dmp

Filesize
64KB

Download
memory/1040-144-0x0000000001620000-0x0000000001630000-memory.dmp

Filesize
64KB

Download
memory/1040-145-0x0000000001620000-0x0000000001630000-memory.dmp

Filesize
64KB

Download

Analysis

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