njrat | 81d37764ce48e1f76d1de50ee831094117ffc239e287e40806801dd0bba097d2

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
15-01-2025 21:30

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General

Target

download.bin.exe
Size

771KB
MD5

beaa68e5cc534b255a5a7f50580fc92a
SHA1

1f0278d90302bd11a53366bdb78fa353b4b1ea58
SHA256

81d37764ce48e1f76d1de50ee831094117ffc239e287e40806801dd0bba097d2
SHA512

ee4a23a968a461032212dea9d3d7102a948034f9c6e733f83e26a9382cb372cb8d9484c2785b548111440ad86086107b615d209611bc6c4dd135bd87968d77a7
SSDEEP

12288:iMSApJVYG5lDLyjsb0eOzkv4R7QnvUUilQ35+6G75V9Us:insJ39LyjbJkQFMhmC+6GD9T

Score

10^/10

njrat xred backdoor discovery persistence trojan

Malware Config

Extracted

Family

xred

xred.mooo.com

Attributes

email
[email protected]
payload_url
http://freedns.afraid.org/api/?action=getdyndns&sha=a30fa98efc092684e8d1c5cff797bcc613562978

https://docs.google.com/uc?id=0BxsMXGfPIZfSVlVsOGlEVGxuZVk&export=download

https://www.dropbox.com/s/n1w4p8gc6jzo0sg/SUpdate.ini?dl=1

http://xred.site50.net/syn/SUpdate.ini

https://docs.google.com/uc?id=0BxsMXGfPIZfSVzUyaHFYVkQxeFk&export=download

https://www.dropbox.com/s/zhp1b06imehwylq/Synaptics.rar?dl=1

http://xred.site50.net/syn/Synaptics.rar

https://docs.google.com/uc?id=0BxsMXGfPIZfSTmlVYkxhSDg5TzQ&export=download

https://www.dropbox.com/s/fzj752whr3ontsm/SSLLibrary.dll?dl=1

http://xred.site50.net/syn/SSLLibrary.dll

Signatures

Njrat family
njrat
Xred
Xred is backdoor written in Delphi.
backdoor xred
Xred family
xred
njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Executes dropped EXE 3 IoCs

pid	Process
2172	._cache_download.bin.exe
3044	Synaptics.exe
2992	._cache_Synaptics.exe

Loads dropped DLL 5 IoCs

pid	Process
2744	download.bin.exe
2744	download.bin.exe
2744	download.bin.exe
3044	Synaptics.exe
3044	Synaptics.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\????? = "C:\\ProgramData\\Synaptics\\Synaptics.exe"	download.bin.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 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	download.bin.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_download.bin.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EXCEL.EXE

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2836	EXCEL.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2992	._cache_Synaptics.exe
Token: SeDebugPrivilege	2172	._cache_download.bin.exe
Token: 33	2992	._cache_Synaptics.exe
Token: SeIncBasePriorityPrivilege	2992	._cache_Synaptics.exe
Token: 33	2172	._cache_download.bin.exe
Token: SeIncBasePriorityPrivilege	2172	._cache_download.bin.exe
Token: 33	2992	._cache_Synaptics.exe
Token: SeIncBasePriorityPrivilege	2992	._cache_Synaptics.exe
Token: 33	2172	._cache_download.bin.exe
Token: SeIncBasePriorityPrivilege	2172	._cache_download.bin.exe
Token: 33	2172	._cache_download.bin.exe
Token: SeIncBasePriorityPrivilege	2172	._cache_download.bin.exe
Token: 33	2992	._cache_Synaptics.exe
Token: SeIncBasePriorityPrivilege	2992	._cache_Synaptics.exe
Token: 33	2992	._cache_Synaptics.exe
Token: SeIncBasePriorityPrivilege	2992	._cache_Synaptics.exe
Token: 33	2172	._cache_download.bin.exe
Token: SeIncBasePriorityPrivilege	2172	._cache_download.bin.exe
Token: 33	2172	._cache_download.bin.exe
Token: SeIncBasePriorityPrivilege	2172	._cache_download.bin.exe
Token: 33	2992	._cache_Synaptics.exe
Token: SeIncBasePriorityPrivilege	2992	._cache_Synaptics.exe
Token: 33	2172	._cache_download.bin.exe
Token: SeIncBasePriorityPrivilege	2172	._cache_download.bin.exe
Token: 33	2992	._cache_Synaptics.exe
Token: SeIncBasePriorityPrivilege	2992	._cache_Synaptics.exe
Token: 33	2992	._cache_Synaptics.exe
Token: 33	2172	._cache_download.bin.exe
Token: SeIncBasePriorityPrivilege	2172	._cache_download.bin.exe
Token: SeIncBasePriorityPrivilege	2992	._cache_Synaptics.exe
Token: 33	2172	._cache_download.bin.exe
Token: SeIncBasePriorityPrivilege	2172	._cache_download.bin.exe
Token: 33	2992	._cache_Synaptics.exe
Token: SeIncBasePriorityPrivilege	2992	._cache_Synaptics.exe
Token: 33	2172	._cache_download.bin.exe
Token: SeIncBasePriorityPrivilege	2172	._cache_download.bin.exe
Token: 33	2992	._cache_Synaptics.exe
Token: SeIncBasePriorityPrivilege	2992	._cache_Synaptics.exe
Token: 33	2992	._cache_Synaptics.exe
Token: SeIncBasePriorityPrivilege	2992	._cache_Synaptics.exe
Token: 33	2172	._cache_download.bin.exe
Token: SeIncBasePriorityPrivilege	2172	._cache_download.bin.exe
Token: 33	2992	._cache_Synaptics.exe
Token: SeIncBasePriorityPrivilege	2992	._cache_Synaptics.exe
Token: 33	2172	._cache_download.bin.exe
Token: SeIncBasePriorityPrivilege	2172	._cache_download.bin.exe
Token: 33	2992	._cache_Synaptics.exe
Token: SeIncBasePriorityPrivilege	2992	._cache_Synaptics.exe
Token: 33	2172	._cache_download.bin.exe
Token: SeIncBasePriorityPrivilege	2172	._cache_download.bin.exe
Token: 33	2992	._cache_Synaptics.exe
Token: SeIncBasePriorityPrivilege	2992	._cache_Synaptics.exe
Token: 33	2172	._cache_download.bin.exe
Token: SeIncBasePriorityPrivilege	2172	._cache_download.bin.exe
Token: 33	2992	._cache_Synaptics.exe
Token: SeIncBasePriorityPrivilege	2992	._cache_Synaptics.exe
Token: 33	2172	._cache_download.bin.exe
Token: SeIncBasePriorityPrivilege	2172	._cache_download.bin.exe
Token: 33	2172	._cache_download.bin.exe
Token: SeIncBasePriorityPrivilege	2172	._cache_download.bin.exe
Token: 33	2992	._cache_Synaptics.exe
Token: SeIncBasePriorityPrivilege	2992	._cache_Synaptics.exe
Token: 33	2992	._cache_Synaptics.exe
Token: SeIncBasePriorityPrivilege	2992	._cache_Synaptics.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2836	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2744 wrote to memory of 2172	2744	download.bin.exe	30
PID 2744 wrote to memory of 2172	2744	download.bin.exe	30
PID 2744 wrote to memory of 2172	2744	download.bin.exe	30
PID 2744 wrote to memory of 2172	2744	download.bin.exe	30
PID 2744 wrote to memory of 3044	2744	download.bin.exe	31
PID 2744 wrote to memory of 3044	2744	download.bin.exe	31
PID 2744 wrote to memory of 3044	2744	download.bin.exe	31
PID 2744 wrote to memory of 3044	2744	download.bin.exe	31
PID 3044 wrote to memory of 2992	3044	Synaptics.exe	32
PID 3044 wrote to memory of 2992	3044	Synaptics.exe	32
PID 3044 wrote to memory of 2992	3044	Synaptics.exe	32
PID 3044 wrote to memory of 2992	3044	Synaptics.exe	32

C:\Users\Admin\AppData\Local\Temp\download.bin.exe
"C:\Users\Admin\AppData\Local\Temp\download.bin.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2744
- C:\Users\Admin\AppData\Local\Temp\._cache_download.bin.exe
  "C:\Users\Admin\AppData\Local\Temp\._cache_download.bin.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2172
- C:\ProgramData\Synaptics\Synaptics.exe
  "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3044
- - C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
    "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" InjUpdate
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2992

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /automation -Embedding
1⤵
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2836

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Synaptics\Synaptics.exe

Filesize
771KB

MD5
beaa68e5cc534b255a5a7f50580fc92a

SHA1
1f0278d90302bd11a53366bdb78fa353b4b1ea58

SHA256
81d37764ce48e1f76d1de50ee831094117ffc239e287e40806801dd0bba097d2

SHA512
ee4a23a968a461032212dea9d3d7102a948034f9c6e733f83e26a9382cb372cb8d9484c2785b548111440ad86086107b615d209611bc6c4dd135bd87968d77a7

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

Filesize
26KB

MD5
ff9f2b483371eff47fabfaa87eb0bd50

SHA1
666ceb53dfcc726d5ba3d6cae1c522e039ad0d50

SHA256
352a47705d756d7c780b76f5f1e2383ef813ac0162d45aac3ce55c4004d06302

SHA512
5ca2248a389bcd017f68d31cf785b048cb739f1e352098dd5a89d6e0696e24343e6c4edea33c2074d739560c36a375a82109369ebe84515fefb64c4e68087f7c

Download Submit
C:\Users\Admin\AppData\Local\Temp\xz4eGJq9.xlsm

Filesize
17KB

MD5
e566fc53051035e1e6fd0ed1823de0f9

SHA1
00bc96c48b98676ecd67e81a6f1d7754e4156044

SHA256
8e574b4ae6502230c0829e2319a6c146aebd51b7008bf5bbfb731424d7952c15

SHA512
a12f56ff30ea35381c2b8f8af2446cf1daa21ee872e98cad4b863db060acd4c33c5760918c277dadb7a490cb4ca2f925d59c70dc5171e16601a11bc4a6542b04

Download Submit
C:\Users\Admin\AppData\Local\Temp\xz4eGJq9.xlsm

Filesize
24KB

MD5
aee29414340480da1ca18bbcb603c528

SHA1
3460af5b00a55a5c541e907284db12f0c4e3a7b0

SHA256
fd37a8cafbba324e9c66814ed3acfc5c6529d2d17211c5c96d32dff12ed810e6

SHA512
e53681c327fad706dab87a97445f3275a4be55afe91b49d2d7fe0586e2c27a82a86431e59e542c5db4b6fc7e80d963290ab7458d47636aed7d6366e21c09129f

Download Submit
C:\Users\Admin\AppData\Local\Temp\xz4eGJq9.xlsm

Filesize
25KB

MD5
717926323ca4d278f1dbb902c440c56e

SHA1
09de0d20064a76a6c96c803cd8493e5350749baf

SHA256
ee30e9510a2600585970831e5b66b3f591c981873c21e5094ac561775ba792fd

SHA512
a51a0c48b6148cf845e3f3094e7ccd438cf3731ddb736b8bc25ad0b5f2e0b15d3c1d1d7db6935427d2e1fec8a79ef7fa452321d1c9baa82e5e923312b74d2fc1

Download Submit
C:\Users\Admin\AppData\Local\Temp\xz4eGJq9.xlsm

Filesize
21KB

MD5
74161ef09820b77fe1b5607f09635c9f

SHA1
7a7950892aa89bd177be3738cf676e1798d14866

SHA256
f0717948546cb35cfe153d3578569c02ee821621aa7642271f9670458d7d6d09

SHA512
a8841653e1715cfbcdd823893b90eb3919a31e7f0088f30a341bf9a65c844a1c188f005b90aa857018e53d8625113400acfb5e0e0f3e208716a4393e600b2603

Download Submit
C:\Users\Admin\AppData\Local\Temp\xz4eGJq9.xlsm

Filesize
23KB

MD5
18f2f88b26f282b7080a4d6db82a4229

SHA1
d6d9406a9e6092c6405d57fc56257906b8a89ae3

SHA256
90d05cd0feebaf12f5eecc895cf02dd87684efd9b673d8eb4907379a0470aebd

SHA512
4be2419eded36990da27fb6483d82179135fdd7da7b3799c39df28e48bf7ad76422450eeeff7724d82eaa3c2d3ae039a2a550712ece7120863ed83d569ccc1a2

Download Submit
C:\Users\Admin\AppData\Local\Temp\xz4eGJq9.xlsm

Filesize
27KB

MD5
fd30bc927452ab0a9cc90ea7fc4decba

SHA1
2a2f3ed079a906405a75a19945cf1aae36db3bf2

SHA256
669681e22f37f97835061c96a1f4deaf67efd0c5e44066b167d0102805932f30

SHA512
5b35f319b040c5e2a8ace608e2754d40947c262ff6089aac4e0bdfd1001538f0be1407095945b4e01d777f1a990fa425d97d34672c06fcba39f1f9bc800b7251

Download Submit
C:\Users\Admin\Desktop\~$RepairGroup.xlsx

Filesize
165B

MD5
ff09371174f7c701e75f357a187c06e8

SHA1
57f9a638fd652922d7eb23236c80055a91724503

SHA256
e4ba04959837c27019a2349015543802439e152ddc4baf4e8c7b9d2b483362a8

SHA512
e4d01e5908e9f80b7732473ec6807bb7faa5425e3154d5642350f44d7220af3cffd277e0b67bcf03f1433ac26a26edb3ddd3707715b61d054b979fbb4b453882

Download Submit
memory/2172-29-0x00000000001E0000-0x00000000001EC000-memory.dmp

Filesize
48KB

Download
memory/2744-0-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2744-26-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/2836-39-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2992-38-0x0000000001050000-0x000000000105C000-memory.dmp

Filesize
48KB

Download
memory/3044-130-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/3044-165-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads