netsupport | c1846d86bdd06582f9990a14a1d586cd8bb1227162380020cf51ee026f8c8a96

Analysis

max time kernel
93s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
29-01-2025 07:59

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General

Target

Firefox.exe
Size

3.8MB
MD5

17f3abc6f3164802c9131c0ef42d0d80
SHA1

8d58b02a13111d063dc6a7045b6b61f877298969
SHA256

c866f5abfc95edff3bbca82f0d06192913842dcbd5982a12a2519cdf88284a52
SHA512

ca3df733d4001402c045f3b99b3a3bbb1f1838deb2d0551ae68fe48cb79378d6e8ad8f4715eed68c02bdc735352490997cad396b4614e7205c1b721207c919e0
SSDEEP

49152:PcW4fEhenfSFS1ZHC5LYyYx4TwLsCKOLZm5LvVxG9sf/6DHRwHBuZPRUaP7x7BjX:PX4cGbXH17iTbOZmZDD6DHRHyazx1X

Score

10^/10

netsupport discovery persistence rat upx

Malware Config

Signatures

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

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x0007000000023ca9-10.dat	acprotect

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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	rundll32.exe

Executes dropped EXE 2 IoCs

pid	Process
1828	Firefox.tmp
2396	shost.exe

Loads dropped DLL 8 IoCs

pid	Process
4860	rundll32.exe
4860	rundll32.exe
2396	shost.exe
2396	shost.exe
2396	shost.exe
2396	shost.exe
2396	shost.exe
2396	shost.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\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\intel update = "C:\\Users\\Admin\\AppData\\Local\\Temp\\shost.exe"	reg.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/files/0x0007000000023ca9-10.dat	upx
behavioral1/memory/4860-14-0x0000000002430000-0x000000000279C000-memory.dmp	upx
behavioral1/memory/4860-13-0x0000000002430000-0x000000000279C000-memory.dmp	upx
behavioral1/memory/4860-69-0x0000000002430000-0x000000000279C000-memory.dmp	upx

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 10 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	Firefox.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	shost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Firefox.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 2 IoCs

defense_evasion

pid	Process
1792	timeout.exe
2040	timeout.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1828	Firefox.tmp
1828	Firefox.tmp

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeSecurityPrivilege	2396	shost.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1828	Firefox.tmp
2396	shost.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 3488 wrote to memory of 1828	3488	Firefox.exe	82
PID 3488 wrote to memory of 1828	3488	Firefox.exe	82
PID 3488 wrote to memory of 1828	3488	Firefox.exe	82
PID 1828 wrote to memory of 3476	1828	Firefox.tmp	83
PID 1828 wrote to memory of 3476	1828	Firefox.tmp	83
PID 1828 wrote to memory of 3476	1828	Firefox.tmp	83
PID 3476 wrote to memory of 4860	3476	cmd.exe	85
PID 3476 wrote to memory of 4860	3476	cmd.exe	85
PID 3476 wrote to memory of 4860	3476	cmd.exe	85
PID 4860 wrote to memory of 1012	4860	rundll32.exe	86
PID 4860 wrote to memory of 1012	4860	rundll32.exe	86
PID 4860 wrote to memory of 1012	4860	rundll32.exe	86
PID 4860 wrote to memory of 952	4860	rundll32.exe	88
PID 4860 wrote to memory of 952	4860	rundll32.exe	88
PID 4860 wrote to memory of 952	4860	rundll32.exe	88
PID 1012 wrote to memory of 2396	1012	cmd.exe	90
PID 1012 wrote to memory of 2396	1012	cmd.exe	90
PID 1012 wrote to memory of 2396	1012	cmd.exe	90
PID 1012 wrote to memory of 1792	1012	cmd.exe	91
PID 1012 wrote to memory of 1792	1012	cmd.exe	91
PID 1012 wrote to memory of 1792	1012	cmd.exe	91
PID 952 wrote to memory of 2040	952	cmd.exe	92
PID 952 wrote to memory of 2040	952	cmd.exe	92
PID 952 wrote to memory of 2040	952	cmd.exe	92
PID 1012 wrote to memory of 1960	1012	cmd.exe	102
PID 1012 wrote to memory of 1960	1012	cmd.exe	102
PID 1012 wrote to memory of 1960	1012	cmd.exe	102

C:\Users\Admin\AppData\Local\Temp\Firefox.exe
"C:\Users\Admin\AppData\Local\Temp\Firefox.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3488
- C:\Users\Admin\AppData\Local\Temp\is-GKM3D.tmp\Firefox.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-GKM3D.tmp\Firefox.tmp" /SL5="$801F8,3283562,721408,C:\Users\Admin\AppData\Local\Temp\Firefox.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1828
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c rundll32.exe %temp%\JBQVDXGOWQ.log, QKYNDDPO
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3476
  - - C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\JBQVDXGOWQ.log, QKYNDDPO
      4⤵
      Checks computer location settings
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:4860
    - - C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /c start %temp%\shost.exe&timeout -t 23&REG ADD "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /V "intel update" /t REG_SZ /F /D "C:\Users\Admin\AppData\Local\Temp\shost.exe"
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:1012
      - C:\Users\Admin\AppData\Local\Temp\shost.exe
        
        C:\Users\Admin\AppData\Local\Temp\shost.exe
        6⤵
        Executes dropped EXE
        Loads dropped DLL
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of FindShellTrayWindow
        
        PID:2396
      - C:\Windows\SysWOW64\timeout.exe
        
        timeout -t 23
        6⤵
        System Location Discovery: System Language Discovery
        Delays execution with timeout.exe
        
        PID:1792
      - C:\Windows\SysWOW64\reg.exe
        
        REG ADD "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /V "intel update" /t REG_SZ /F /D "C:\Users\Admin\AppData\Local\Temp\shost.exe"
        6⤵
        Adds Run key to start application
        System Location Discovery: System Language Discovery
        
        PID:1960
    - - C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /c timeout -t 10&del C:\Users\Admin\AppData\Local\Temp\JBQVDXGOWQ.log /f
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:952
      - C:\Windows\SysWOW64\timeout.exe
        
        timeout -t 10
        6⤵
        System Location Discovery: System Language Discovery
        Delays execution with timeout.exe
        
        PID:2040

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\HTCTL32.DLL

Filesize
320KB

MD5
2d3b207c8a48148296156e5725426c7f

SHA1
ad464eb7cf5c19c8a443ab5b590440b32dbc618f

SHA256
edfe2b923bfb5d1088de1611401f5c35ece91581e71503a5631647ac51f7d796

SHA512
55c791705993b83c9b26a8dbd545d7e149c42ee358ecece638128ee271e85b4fdbfd6fbae61d13533bf39ae752144e2cc2c5edcda955f18c37a785084db0860c

Download Submit
C:\Users\Admin\AppData\Local\Temp\JBQVDXGOWQ.log

Filesize
2.4MB

MD5
bb3b6db1e47404dd81cef691d64747d1

SHA1
ca372ab690b8e2927f07c47295a41887414ca8aa

SHA256
db102c67fdad281d5ed7e570614a6534fb5a5ad1ea1b78d612cd164818e38cf4

SHA512
a6c8bb414f1165ad74096009a2ecf8868e2d1d5f216eb31faa38434519343224df8aed39e1d3eee47fab94455dfec3514f5d27eb0628354e2f87802d50539466

Download Submit
C:\Users\Admin\AppData\Local\Temp\MSVCR100.dll

Filesize
755KB

MD5
0e37fbfa79d349d672456923ec5fbbe3

SHA1
4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

SHA256
8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

SHA512
2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

Download Submit
C:\Users\Admin\AppData\Local\Temp\NSM.LIC

Filesize
257B

MD5
7067af414215ee4c50bfcd3ea43c84f0

SHA1
c331d410672477844a4ca87f43a14e643c863af9

SHA256
2050cc232710a2ea6a207bc78d1eac66a4042f2ee701cdfeee5de3ddcdc31d12

SHA512
17b888087192bcea9f56128d0950423b1807e294d1c4f953d1bf0f5bd08e5f8e35afeee584ebf9233bfc44e0723db3661911415798159ac118c8a42aaf0b902f

Download Submit
C:\Users\Admin\AppData\Local\Temp\PCICL32.dll

Filesize
3.6MB

MD5
00587238d16012152c2e951a087f2cc9

SHA1
c4e27a43075ce993ff6bb033360af386b2fc58ff

SHA256
63aa18c32af7144156e7ee2d5ba0fa4f5872a7deb56894f6f96505cbc9afe6f8

SHA512
637950a1f78d3f3d02c30a49a16e91cf3dfccc59104041876789bd7fdf9224d187209547766b91404c67319e13d1606da7cec397315495962cbf3e2ccd5f1226

Download Submit
C:\Users\Admin\AppData\Local\Temp\client32.ini

Filesize
596B

MD5
bebba86c297df49c65cde6ed74d44393

SHA1
4bd5cd4d52fc18fb2f1cb8af2f7945a4ba47423d

SHA256
e819c3ed9f16fdf251a62631131ffccca91016931a7c3698f3163a11aebb56cc

SHA512
f5061faf7e9256a68cd775ce35ab7e0436b6e702920ab75a7f407215f432c0f7a8577344fd692b752401864e563976322a6d79082307b9c9910c3969980a37f1

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-GKM3D.tmp\Firefox.tmp

Filesize
2.4MB

MD5
8e2d270339dcd0a68fbb2f02a65d45dd

SHA1
bfcdb1f71692020858f96960e432e94a4e70c4a4

SHA256
506176b3245de84bb0b7a4da4b8068b9dd289eb9a3a1757d4183c7c3f168c811

SHA512
31eac8aabe8ac83f24d4eba21bc3a52b56105f52402aeb00e505a6be3208cf92cc57529b26f1b29605f554dccdff51e9f28f584268bfda689f53be624f3fd647

Download Submit
C:\Users\Admin\AppData\Local\Temp\pcicapi.dll

Filesize
32KB

MD5
dcde2248d19c778a41aa165866dd52d0

SHA1
7ec84be84fe23f0b0093b647538737e1f19ebb03

SHA256
9074fd40ea6a0caa892e6361a6a4e834c2e51e6e98d1ffcda7a9a537594a6917

SHA512
c5d170d420f1aeb9bcd606a282af6e8da04ae45c83d07faaacb73ff2e27f4188b09446ce508620124f6d9b447a40a23620cfb39b79f02b04bb9e513866352166

Download Submit
C:\Users\Admin\AppData\Local\Temp\pcichek.dll

Filesize
18KB

MD5
a0b9388c5f18e27266a31f8c5765b263

SHA1
906f7e94f841d464d4da144f7c858fa2160e36db

SHA256
313117e723dda6ea3911faacd23f4405003fb651c73de8deff10b9eb5b4a058a

SHA512
6051a0b22af135b4433474dc7c6f53fb1c06844d0a30ed596a3c6c80644df511b023e140c4878867fa2578c79695fac2eb303aea87c0ecfc15a4ad264bd0b3cd

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

Filesize
103KB

MD5
8d9709ff7d9c83bd376e01912c734f0a

SHA1
e3c92713ce1d7eaa5e2b1fabeb06cdc0bb499294

SHA256
49a568f8ac11173e3a0d76cff6bc1d4b9bdf2c35c6d8570177422f142dcfdbe3

SHA512
042ad89ed2e15671f5df67766d11e1fa7ada8241d4513e7c8f0d77b983505d63ebfb39fefa590a2712b77d7024c04445390a8bf4999648f83dbab6b0f04eb2ee

Download Submit
memory/1828-87-0x0000000000400000-0x0000000000679000-memory.dmp

Filesize
2.5MB

Download
memory/1828-15-0x0000000000400000-0x0000000000679000-memory.dmp

Filesize
2.5MB

Download
memory/1828-6-0x0000000000400000-0x0000000000679000-memory.dmp

Filesize
2.5MB

Download
memory/3488-16-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/3488-89-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/3488-0-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/3488-2-0x0000000000401000-0x00000000004A9000-memory.dmp

Filesize
672KB

Download
memory/4860-14-0x0000000002430000-0x000000000279C000-memory.dmp

Filesize
3.4MB

Download
memory/4860-69-0x0000000002430000-0x000000000279C000-memory.dmp

Filesize
3.4MB

Download
memory/4860-13-0x0000000002430000-0x000000000279C000-memory.dmp

Filesize
3.4MB

Download