netsupport | c861e309bc11fdecd440b981d693e824cd67240d68a0d0d79b91887e1c64f492

Analysis

max time kernel
98s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
21-03-2023 14:40

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General

Target

4689feea371ab0b27c3b7760ad99d3d587e770b36403fcaf795e4a5c17bef173.exe
Size

2.6MB
MD5

92d8cace3f5be94d54700290a22b01ab
SHA1

08feb65fdcd6a8284297461c1afced9f769134c9
SHA256

4689feea371ab0b27c3b7760ad99d3d587e770b36403fcaf795e4a5c17bef173
SHA512

85b86a20a3f52a347ee31f0cfd7f9a34f9a624ca07f5c94b4ad56841162a9d73606ee1f7ed85c065e3262b73616d1a2618f1c10f0ad483dd1884de1ca5c0b07c
SSDEEP

49152:RJso4ozTdxkp92TMp2OX5yadksH1dSXnnGz2pU8E8SDJI4x:Reo5d6Ugp2IyadJH1dSXnGz2pU8Aaw

Score

10^/10

netsupport rat

Malware Config

Signatures

NetSupport
NetSupport is a remote access tool sold as a legitimate system administration software.
rat netsupport

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

Processes:

4689feea371ab0b27c3b7760ad99d3d587e770b36403fcaf795e4a5c17bef173.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\International\Geo\Nation	4689feea371ab0b27c3b7760ad99d3d587e770b36403fcaf795e4a5c17bef173.exe

Drops startup file 1 IoCs

Processes:

4689feea371ab0b27c3b7760ad99d3d587e770b36403fcaf795e4a5c17bef173.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\automruns2022.ini.lnk	4689feea371ab0b27c3b7760ad99d3d587e770b36403fcaf795e4a5c17bef173.exe

Executes dropped EXE 1 IoCs

Processes:

client32.exe

pid process

3856 client32.exe
Loads dropped DLL 5 IoCs

Processes:

client32.exe

pid process

3856 client32.exe
3856 client32.exe
3856 client32.exe
3856 client32.exe
3856 client32.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 1 IoCs

Processes:

client32.exe

description pid process

Token: SeSecurityPrivilege 3856 client32.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

client32.exe

pid process

3856 client32.exe

pid	process
3856	client32.exe

pid	process
3856	client32.exe
3856	client32.exe
3856	client32.exe
3856	client32.exe
3856	client32.exe

description	pid	process
Token: SeSecurityPrivilege	3856	client32.exe

pid	process
3856	client32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

4689feea371ab0b27c3b7760ad99d3d587e770b36403fcaf795e4a5c17bef173.exe

description	pid	process	target process
PID 1288 wrote to memory of 3856	1288	4689feea371ab0b27c3b7760ad99d3d587e770b36403fcaf795e4a5c17bef173.exe	client32.exe
PID 1288 wrote to memory of 3856	1288	4689feea371ab0b27c3b7760ad99d3d587e770b36403fcaf795e4a5c17bef173.exe	client32.exe
PID 1288 wrote to memory of 3856	1288	4689feea371ab0b27c3b7760ad99d3d587e770b36403fcaf795e4a5c17bef173.exe	client32.exe

C:\Users\Admin\AppData\Local\Temp\4689feea371ab0b27c3b7760ad99d3d587e770b36403fcaf795e4a5c17bef173.exe
"C:\Users\Admin\AppData\Local\Temp\4689feea371ab0b27c3b7760ad99d3d587e770b36403fcaf795e4a5c17bef173.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:1288

C:\Users\Admin\AppData\Roaming\BfVeRdDs41\client32.exe
"C:\Users\Admin\AppData\Roaming\BfVeRdDs41\client32.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:3856

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\BfVeRdDs41\HTCTL32.DLL

Filesize
320KB

MD5
c94005d2dcd2a54e40510344e0bb9435

SHA1
55b4a1620c5d0113811242c20bd9870a1e31d542

SHA256
3c072532bf7674d0c5154d4d22a9d9c0173530c0d00f69911cdbc2552175d899

SHA512
2e6f673864a54b1dcad9532ef9b18a9c45c0844f1f53e699fade2f41e43fa5cbc9b8e45e6f37b95f84cf6935a96fba2950ee3e0e9542809fd288fefba34ddd6a

Download Submit
C:\Users\Admin\AppData\Roaming\BfVeRdDs41\HTCTL32.DLL

Filesize
320KB

MD5
c94005d2dcd2a54e40510344e0bb9435

SHA1
55b4a1620c5d0113811242c20bd9870a1e31d542

SHA256
3c072532bf7674d0c5154d4d22a9d9c0173530c0d00f69911cdbc2552175d899

SHA512
2e6f673864a54b1dcad9532ef9b18a9c45c0844f1f53e699fade2f41e43fa5cbc9b8e45e6f37b95f84cf6935a96fba2950ee3e0e9542809fd288fefba34ddd6a

Download Submit
C:\Users\Admin\AppData\Roaming\BfVeRdDs41\MSVCR100.dll

Filesize
755KB

MD5
0e37fbfa79d349d672456923ec5fbbe3

SHA1
4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

SHA256
8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

SHA512
2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

Download Submit
C:\Users\Admin\AppData\Roaming\BfVeRdDs41\NSM.LIC

Filesize
257B

MD5
17a78f50e32679f228c43823faabedfd

SHA1
55316c38ef8b383a2589c7cabb150a482feaa4a8

SHA256
ee07297db87c0acfabe9e409fa64819c12f25d2c79aef9a4136d36e8098c9e20

SHA512
f2004eb676cb8902f15ac2e3e2363b258567f02666a2f9f944a9b7844a927cf168b049c8257e41d4ef6db3d44f082026fb8ffadc753de0e98922a4302162f2f1

Download Submit
C:\Users\Admin\AppData\Roaming\BfVeRdDs41\PCICHEK.DLL

Filesize
18KB

MD5
104b30fef04433a2d2fd1d5f99f179fe

SHA1
ecb08e224a2f2772d1e53675bedc4b2c50485a41

SHA256
956b9fa960f913cce3137089c601f3c64cc24c54614b02bba62abb9610a985dd

SHA512
5efcaa8c58813c3a0a6026cd7f3b34ad4fb043fd2d458db2e914429be2b819f1ac74e2d35e4439601cf0cb50fcdcafdcf868da328eaaeec15b0a4a6b8b2c218f

Download Submit
C:\Users\Admin\AppData\Roaming\BfVeRdDs41\PCICL32.DLL

Filesize
3.6MB

MD5
d3d39180e85700f72aaae25e40c125ff

SHA1
f3404ef6322f5c6e7862b507d05b8f4b7f1c7d15

SHA256
38684adb2183bf320eb308a96cdbde8d1d56740166c3e2596161f42a40fa32d5

SHA512
471ac150e93a182d135e5483d6b1492f08a49f5ccab420732b87210f2188be1577ceaaee4ce162a7acceff5c17cdd08dc51b1904228275f6bbde18022ec79d2f

Download Submit
C:\Users\Admin\AppData\Roaming\BfVeRdDs41\PCICL32.dll

Filesize
3.6MB

MD5
d3d39180e85700f72aaae25e40c125ff

SHA1
f3404ef6322f5c6e7862b507d05b8f4b7f1c7d15

SHA256
38684adb2183bf320eb308a96cdbde8d1d56740166c3e2596161f42a40fa32d5

SHA512
471ac150e93a182d135e5483d6b1492f08a49f5ccab420732b87210f2188be1577ceaaee4ce162a7acceff5c17cdd08dc51b1904228275f6bbde18022ec79d2f

Download Submit
C:\Users\Admin\AppData\Roaming\BfVeRdDs41\client32.exe

Filesize
104KB

MD5
f76954b68cc390f8009f1a052283a740

SHA1
3112a39aad950045d6422fb2abe98bed05931e6c

SHA256
63315df7981130853d75dc753e5776bdf371811bcfce351557c1e45afdd1ebfb

SHA512
d3aea0867b488161f62e43e7c250ad3917713b8b183139fb6e06c71594fb0cec769e1494b7cc257117992ae4aa891e056f99c25431ae19f032b1ba779051a880

Download Submit
C:\Users\Admin\AppData\Roaming\BfVeRdDs41\client32.exe

Filesize
104KB

MD5
f76954b68cc390f8009f1a052283a740

SHA1
3112a39aad950045d6422fb2abe98bed05931e6c

SHA256
63315df7981130853d75dc753e5776bdf371811bcfce351557c1e45afdd1ebfb

SHA512
d3aea0867b488161f62e43e7c250ad3917713b8b183139fb6e06c71594fb0cec769e1494b7cc257117992ae4aa891e056f99c25431ae19f032b1ba779051a880

Download Submit
C:\Users\Admin\AppData\Roaming\BfVeRdDs41\client32.exe

Filesize
104KB

MD5
f76954b68cc390f8009f1a052283a740

SHA1
3112a39aad950045d6422fb2abe98bed05931e6c

SHA256
63315df7981130853d75dc753e5776bdf371811bcfce351557c1e45afdd1ebfb

SHA512
d3aea0867b488161f62e43e7c250ad3917713b8b183139fb6e06c71594fb0cec769e1494b7cc257117992ae4aa891e056f99c25431ae19f032b1ba779051a880

Download Submit
C:\Users\Admin\AppData\Roaming\BfVeRdDs41\client32.ini

Filesize
920B

MD5
ec7f02e4b82fdb356aba2c7c16f63dca

SHA1
daf8899a1af4ef89ae892b1cf11550ea178dee00

SHA256
417a6b55fb297f1351978c55e61b68b8d7ef7f3579af1e66f7148b3d8a5bfca6

SHA512
adde2f9fb90c0ee60b760f11e04a3414b90e56a315bd92117b9dbeae06cd2c103649c8c58bbe7fc904abd76b33cb8a9ad5d3dc28c96fb589d5cd1b08db2713cb

Download Submit
C:\Users\Admin\AppData\Roaming\BfVeRdDs41\msvcr100.dll

Filesize
755KB

MD5
0e37fbfa79d349d672456923ec5fbbe3

SHA1
4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

SHA256
8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

SHA512
2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

Download Submit
C:\Users\Admin\AppData\Roaming\BfVeRdDs41\pcicapi.dll

Filesize
32KB

MD5
34dfb87e4200d852d1fb45dc48f93cfc

SHA1
35b4e73fb7c8d4c3fefb90b7e7dc19f3e653c641

SHA256
2d6c6200508c0797e6542b195c999f3485c4ef76551aa3c65016587788ba1703

SHA512
f5bb4e700322cbaa5069244812a9b6ce6899ce15b4fd6384a3e8be421e409e4526b2f67fe210394cd47c4685861faf760eff9af77209100b82b2e0655581c9b2

Download Submit
C:\Users\Admin\AppData\Roaming\BfVeRdDs41\pcicapi.dll

Filesize
32KB

MD5
34dfb87e4200d852d1fb45dc48f93cfc

SHA1
35b4e73fb7c8d4c3fefb90b7e7dc19f3e653c641

SHA256
2d6c6200508c0797e6542b195c999f3485c4ef76551aa3c65016587788ba1703

SHA512
f5bb4e700322cbaa5069244812a9b6ce6899ce15b4fd6384a3e8be421e409e4526b2f67fe210394cd47c4685861faf760eff9af77209100b82b2e0655581c9b2

Download Submit
C:\Users\Admin\AppData\Roaming\BfVeRdDs41\pcichek.dll

Filesize
18KB

MD5
104b30fef04433a2d2fd1d5f99f179fe

SHA1
ecb08e224a2f2772d1e53675bedc4b2c50485a41

SHA256
956b9fa960f913cce3137089c601f3c64cc24c54614b02bba62abb9610a985dd

SHA512
5efcaa8c58813c3a0a6026cd7f3b34ad4fb043fd2d458db2e914429be2b819f1ac74e2d35e4439601cf0cb50fcdcafdcf868da328eaaeec15b0a4a6b8b2c218f

Download Submit