netsupport | c2c6e13f08cd8b5bf721576ca1372b72cdf0c33d8aafac2e529f3aa3c73a6a80

Analysis

max time kernel
121s
max time network
139s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
09-11-2024 14:52

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General

Target

$TEMP/eng.exe
Size

2.5MB
MD5

e8ba3cd3e42a1fcab093ff7a6deb796b
SHA1

f0da57a878afcf71fdbf26042f33821fbd139d6c
SHA256

ed8692011421fdd2560ade9a0812c1ec0f11e48e8781ba0c9fd11d4f169d0c32
SHA512

ab43521b7ea1b766405bdb65af97152281dc76063e6aba3c18fbd9ce2c70e48d4c31441a391a1ad9f6e86160d2caa7af7256c8a3dbf7ae0348822ac892ef5c7d
SSDEEP

49152:qeRvnwK61a7hg/WdK+pgqx8HFF6iKabwS6zbv6rijnw3MAmkphUKO+q27XoS:qeRvnJ61a9guhV6HFF6UwSM6rirwGkph

Score

10^/10

netsupport discovery persistence rat

Malware Config

Signatures

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

Executes dropped EXE 1 IoCs

Processes:

pcictl.exe

pid	Process
2728	pcictl.exe

Loads dropped DLL 9 IoCs

Processes:

cmd.exepcictl.exe

pid	Process
2876	cmd.exe
2728	pcictl.exe
2728	pcictl.exe
2728	pcictl.exe
2728	pcictl.exe
2728	pcictl.exe
2728	pcictl.exe
2728	pcictl.exe
2728	pcictl.exe

Registers new Windows logon scripts automatically executed at logon. 1 TTPs 1 IoCs

persistence

Logon Script (Windows)

T1037.001

Processes:

reg.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Environment\UserInitMprLogonScript = "C:\\ProgramData\\icsxml\\pcictl.exe"	reg.exe

Drops file in Windows directory 2 IoCs

Processes:

expand.exe

description	ioc	Process
File opened for modification	C:\Windows\Logs\DPX\setupact.log	expand.exe
File opened for modification	C:\Windows\Logs\DPX\setuperr.log	expand.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

Processes:

eng.execmd.exeexpand.exereg.exepcictl.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eng.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	expand.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pcictl.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

Processes:

reg.exe

pid	Process
2228	reg.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

pcictl.exe

description	pid	Process
Token: SeSecurityPrivilege	2728	pcictl.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

pcictl.exe

pid	Process
2728	pcictl.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

eng.execmd.exe

description	pid	Process	procid_target
PID 3032 wrote to memory of 2876	3032	eng.exe	30
PID 3032 wrote to memory of 2876	3032	eng.exe	30
PID 3032 wrote to memory of 2876	3032	eng.exe	30
PID 3032 wrote to memory of 2876	3032	eng.exe	30
PID 3032 wrote to memory of 2876	3032	eng.exe	30
PID 3032 wrote to memory of 2876	3032	eng.exe	30
PID 3032 wrote to memory of 2876	3032	eng.exe	30
PID 2876 wrote to memory of 1076	2876	cmd.exe	32
PID 2876 wrote to memory of 1076	2876	cmd.exe	32
PID 2876 wrote to memory of 1076	2876	cmd.exe	32
PID 2876 wrote to memory of 1076	2876	cmd.exe	32
PID 2876 wrote to memory of 1076	2876	cmd.exe	32
PID 2876 wrote to memory of 1076	2876	cmd.exe	32
PID 2876 wrote to memory of 1076	2876	cmd.exe	32
PID 2876 wrote to memory of 2228	2876	cmd.exe	33
PID 2876 wrote to memory of 2228	2876	cmd.exe	33
PID 2876 wrote to memory of 2228	2876	cmd.exe	33
PID 2876 wrote to memory of 2228	2876	cmd.exe	33
PID 2876 wrote to memory of 2228	2876	cmd.exe	33
PID 2876 wrote to memory of 2228	2876	cmd.exe	33
PID 2876 wrote to memory of 2228	2876	cmd.exe	33
PID 2876 wrote to memory of 2728	2876	cmd.exe	34
PID 2876 wrote to memory of 2728	2876	cmd.exe	34
PID 2876 wrote to memory of 2728	2876	cmd.exe	34
PID 2876 wrote to memory of 2728	2876	cmd.exe	34
PID 2876 wrote to memory of 2728	2876	cmd.exe	34
PID 2876 wrote to memory of 2728	2876	cmd.exe	34
PID 2876 wrote to memory of 2728	2876	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\$TEMP\eng.exe
"C:\Users\Admin\AppData\Local\Temp\$TEMP\eng.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3032
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\7z75BC6BD8\ics.bat" "
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2876
- - C:\Windows\SysWOW64\expand.exe
    expand ics.cab -F:* C:\ProgramData
    3⤵
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    PID:1076
- - C:\Windows\SysWOW64\reg.exe
    reg add HKCU\Environment /v UserInitMprLogonScript /t REG_SZ /d C:\ProgramData\icsxml\pcictl.exe /f
    3⤵
    - Registers new Windows logon scripts automatically executed at logon.
    - System Location Discovery: System Language Discovery
    - Modifies registry key
    PID:2228
- - C:\ProgramData\icsxml\pcictl.exe
    C:\ProgramData\icsxml\pcictl.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of FindShellTrayWindow
    PID:2728

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Initialization Scripts

T1037

Logon Script (Windows)

T1037.001

Privilege Escalation

Boot or Logon Initialization Scripts

T1037

Logon Script (Windows)

T1037.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\icsxml\HTCTL32.DLL

Filesize
320KB

MD5
c94005d2dcd2a54e40510344e0bb9435

SHA1
55b4a1620c5d0113811242c20bd9870a1e31d542

SHA256
3c072532bf7674d0c5154d4d22a9d9c0173530c0d00f69911cdbc2552175d899

SHA512
2e6f673864a54b1dcad9532ef9b18a9c45c0844f1f53e699fade2f41e43fa5cbc9b8e45e6f37b95f84cf6935a96fba2950ee3e0e9542809fd288fefba34ddd6a

Download Submit
C:\ProgramData\icsxml\MSVCR100.dll

Filesize
755KB

MD5
0e37fbfa79d349d672456923ec5fbbe3

SHA1
4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

SHA256
8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

SHA512
2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

Download Submit
C:\ProgramData\icsxml\NSM.LIC

Filesize
195B

MD5
e9609072de9c29dc1963be208948ba44

SHA1
03bbe27d0d1ba651ff43363587d3d6d2e170060f

SHA256
dc6a52ad6d637eb407cc060e98dfeedcca1167e7f62688fb1c18580dd1d05747

SHA512
f0e26aa63b0c7f1b31074b9d6eef88d0cfbc467f86b12205cb539a45b0352e77ce2f99f29baeab58960a197714e72289744143ba17975699d058fe75d978dfd0

Download Submit
C:\ProgramData\icsxml\PCICL32.dll

Filesize
3.6MB

MD5
d3d39180e85700f72aaae25e40c125ff

SHA1
f3404ef6322f5c6e7862b507d05b8f4b7f1c7d15

SHA256
38684adb2183bf320eb308a96cdbde8d1d56740166c3e2596161f42a40fa32d5

SHA512
471ac150e93a182d135e5483d6b1492f08a49f5ccab420732b87210f2188be1577ceaaee4ce162a7acceff5c17cdd08dc51b1904228275f6bbde18022ec79d2f

Download Submit
C:\ProgramData\icsxml\client32.ini

Filesize
615B

MD5
d38b0753c2816a57fc41b91b5bdf92c7

SHA1
d8e50ae1fc7957053829a1429acb4885e60c6e54

SHA256
160d50c13ae3b076926410875750e6e535115dba98f9445bdb947b3fe5ba53c9

SHA512
7d8a82708614b0b44208ceddc363ca552d8b2e89eb056088f2de89874bec76ac6eda4e47bc3bca6b168e28329debe2b23b8bb5f69574dd1f39a6303a73c5c844

Download Submit
C:\ProgramData\icsxml\pcicapi.dll

Filesize
32KB

MD5
34dfb87e4200d852d1fb45dc48f93cfc

SHA1
35b4e73fb7c8d4c3fefb90b7e7dc19f3e653c641

SHA256
2d6c6200508c0797e6542b195c999f3485c4ef76551aa3c65016587788ba1703

SHA512
f5bb4e700322cbaa5069244812a9b6ce6899ce15b4fd6384a3e8be421e409e4526b2f67fe210394cd47c4685861faf760eff9af77209100b82b2e0655581c9b2

Download Submit
C:\ProgramData\icsxml\pcichek.dll

Filesize
18KB

MD5
104b30fef04433a2d2fd1d5f99f179fe

SHA1
ecb08e224a2f2772d1e53675bedc4b2c50485a41

SHA256
956b9fa960f913cce3137089c601f3c64cc24c54614b02bba62abb9610a985dd

SHA512
5efcaa8c58813c3a0a6026cd7f3b34ad4fb043fd2d458db2e914429be2b819f1ac74e2d35e4439601cf0cb50fcdcafdcf868da328eaaeec15b0a4a6b8b2c218f

Download Submit
C:\Users\Admin\AppData\Local\Temp\7z75BC6BD8\ics.bat

Filesize
1KB

MD5
6a9da52824425c347a0d7c2ed8d3204a

SHA1
b4248c8415432106e31e9546dd61e415cd537623

SHA256
0080ec43a4e9bcdeb9c0ce19945da83995707cd3420133e2bea00953f626e80b

SHA512
6f32faa0f9817a1479cf7757bb11d630d8684869ed1482e5369f4f3948793cbb1974b7a04c1796060da493353c3b8a8ab0b20e72d8ae75944de3d9c57e858af4

Download Submit
C:\Users\Admin\AppData\Local\Temp\7z75BC6BD8\ics.cab

Filesize
2.1MB

MD5
a51fadf427183e751a0ac0b2d788b083

SHA1
aecc6d899caa9fc2b5000e3bef9e9ba5dd1b6277

SHA256
1c4c12514f32bcf624b0b5f4e692967b5d4a48ec5c3445d8c0a19cb25ff5e25f

SHA512
a9e9e43f986354514b6fdc4bd944e4568f6428564b678c7d7e5bcdc4f44f7584e17360029fa22f9b7d0a91285ce6e7afbb35afc27e3cd35fe846dfa8d9e7249b

Download Submit
\ProgramData\icsxml\TCCTL32.DLL

Filesize
387KB

MD5
2c88d947a5794cf995d2f465f1cb9d10

SHA1
c0ff9ea43771d712fe1878dbb6b9d7a201759389

SHA256
2b92ea2a7d2be8d64c84ea71614d0007c12d6075756313d61ddc40e4c4dd910e

SHA512
e55679ff66ded375a422a35d0f92b3ac825674894ae210dbef3642e4fc232c73114077e84eae45c6e99a60ef4811f4a900b680c3bf69214959fa152a3dfbe542

Download Submit
\ProgramData\icsxml\pcictl.exe

Filesize
103KB

MD5
c60ac6a6e6e582ab0ecb1fdbd607705b

SHA1
ba9de479beb82fd97bbdfbc04ef22e08224724ba

SHA256
4d24b359176389301c14a92607b5c26b8490c41e7e3a2abbc87510d1376f4a87

SHA512
f91b964f8b9a0e7445fc260b8c75c831e7ce462701a64a39989304468c9c5ab5d1e8bfe376940484f824b399aef903bf51c679fcf45208426fff7e4e518482ca

Download Submit