sectoprat | 45ab4ca2483759d89bc446e6797e86489eb08cfeb3f740440a83ff6d83eb5503

General

Target

SFHgtxFGtB.ps1
Size

35KB
MD5

6a34a3dbed524eed6d73c72188418d80
SHA1

6a6ee1aa6ad9d9fbd7b7112df3a5c92b83c18667
SHA256

45ab4ca2483759d89bc446e6797e86489eb08cfeb3f740440a83ff6d83eb5503
SHA512

6fd7dc31836db3062aea0ab2bf0c7b0c45ee188fa9f2a872de968db2635aefc404d057444ec15ffea66585f6aa8e18acf2088e9523ac9138680ef6061465db30
SSDEEP

96:YdgXCdz1ArDw1DQXZB08+uFk0WK49Ms00IYY+blwIAAwIYmEYsR0KkMEIIAAYwwP:EZu

Score

10^/10

sectoprat discovery execution persistence rat trojan

Malware Config

Signatures

SectopRAT
SectopRAT is a remote access trojan first seen in November 2019.
trojan rat sectoprat

SectopRAT payload 1 IoCs

resource	yara_rule
behavioral2/memory/4768-29-0x0000000000400000-0x00000000004C6000-memory.dmp	family_sectoprat

Sectoprat family
sectoprat

Blocklisted process makes network request 1 IoCs

flow	pid	Process
14	1708	powershell.exe

Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
3480	updater.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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\ggkfcbc = "\"C:\\faggbgb\\AutoIt3.exe\" C:\\faggbgb\\ggkfcbc.a3x"	updater.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3480 set thread context of 4768	3480	updater.exe	92

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1708	powershell.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	updater.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	updater.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	updater.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1708	powershell.exe
1708	powershell.exe
1708	powershell.exe
1708	powershell.exe
4768	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1708	powershell.exe
Token: SeDebugPrivilege	4768	MSBuild.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4768	MSBuild.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1708 wrote to memory of 3480	1708	powershell.exe	87
PID 1708 wrote to memory of 3480	1708	powershell.exe	87
PID 1708 wrote to memory of 3480	1708	powershell.exe	87
PID 3480 wrote to memory of 4768	3480	updater.exe	92
PID 3480 wrote to memory of 4768	3480	updater.exe	92
PID 3480 wrote to memory of 4768	3480	updater.exe	92
PID 3480 wrote to memory of 4768	3480	updater.exe	92
PID 3480 wrote to memory of 4768	3480	updater.exe	92

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\SFHgtxFGtB.ps1
1⤵
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1708
- C:\Users\Admin\AppData\Local\Temp\02388742\updater.exe
  "C:\Users\Admin\AppData\Local\Temp\02388742\updater.exe" C:\Users\Admin\AppData\Local\Temp\02388742\fJYacEqm.dll
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious use of WriteProcessMemory
  PID:3480
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:4768

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\02388742\fJYacEqm.dll

Filesize
1.9MB

MD5
bcc04f3c8f29b9533c8aff0681d4eb4f

SHA1
2edb98e832959106bc3e6110dfb0a20a549bdcb1

SHA256
d0e19b9fed36046a80ca84c68624eeed3fac491962fc121d1d7b6433006990dc

SHA512
dcd54ae36962e5072be4b31e20bc7d42a4ff9d90e95930f09a0cbdb6e0f7495a38409defcacf072c8c452188dbbf4863f5f8e21a24f50d36ffdae61959176cf1

Download Submit
C:\Users\Admin\AppData\Local\Temp\02388742\updater.exe

Filesize
872KB

MD5
c56b5f0201a3b3de53e561fe76912bfd

SHA1
2a4062e10a5de813f5688221dbeb3f3ff33eb417

SHA256
237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d

SHA512
195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kvjav2ff.vri.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB3B3.tmp

Filesize
20KB

MD5
49693267e0adbcd119f9f5e02adf3a80

SHA1
3ba3d7f89b8ad195ca82c92737e960e1f2b349df

SHA256
d76e7512e496b7c8d9fcd3010a55e2e566881dc6dacaf0343652a4915d47829f

SHA512
b4b9fcecf8d277bb0ccbb25e08f3559e3fc519d85d8761d8ad5bca983d04eb55a20d3b742b15b9b31a7c9187da40ad5c48baa7a54664cae4c40aa253165cbaa2

Download Submit
memory/1708-11-0x00007FFB1AC10000-0x00007FFB1B6D1000-memory.dmp

Filesize
10.8MB

Download
memory/1708-12-0x00007FFB1AC10000-0x00007FFB1B6D1000-memory.dmp

Filesize
10.8MB

Download
memory/1708-13-0x00007FFB1AC10000-0x00007FFB1B6D1000-memory.dmp

Filesize
10.8MB

Download
memory/1708-0-0x00007FFB1AC13000-0x00007FFB1AC15000-memory.dmp

Filesize
8KB

Download
memory/1708-18-0x00007FFB1AC13000-0x00007FFB1AC15000-memory.dmp

Filesize
8KB

Download
memory/1708-19-0x00007FFB1AC10000-0x00007FFB1B6D1000-memory.dmp

Filesize
10.8MB

Download
memory/1708-1-0x000001CF501D0000-0x000001CF501F2000-memory.dmp

Filesize
136KB

Download
memory/1708-22-0x00007FFB1AC10000-0x00007FFB1B6D1000-memory.dmp

Filesize
10.8MB

Download
memory/1708-32-0x00007FFB1AC10000-0x00007FFB1B6D1000-memory.dmp

Filesize
10.8MB

Download
memory/3480-26-0x0000000001480000-0x0000000001880000-memory.dmp

Filesize
4.0MB

Download
memory/4768-29-0x0000000000400000-0x00000000004C6000-memory.dmp

Filesize
792KB

Download
memory/4768-36-0x0000000005B80000-0x0000000005BD0000-memory.dmp

Filesize
320KB

Download
memory/4768-31-0x00000000060B0000-0x0000000006654000-memory.dmp

Filesize
5.6MB

Download
memory/4768-33-0x0000000005DE0000-0x0000000005FA2000-memory.dmp

Filesize
1.8MB

Download
memory/4768-28-0x00000000746CE000-0x00000000746CF000-memory.dmp

Filesize
4KB

Download
memory/4768-35-0x00000000746C0000-0x0000000074E70000-memory.dmp

Filesize
7.7MB

Download
memory/4768-34-0x0000000005B00000-0x0000000005B76000-memory.dmp

Filesize
472KB

Download
memory/4768-30-0x00000000059A0000-0x0000000005A32000-memory.dmp

Filesize
584KB

Download
memory/4768-37-0x0000000005980000-0x000000000598A000-memory.dmp

Filesize
40KB

Download
memory/4768-38-0x0000000006C90000-0x00000000071BC000-memory.dmp

Filesize
5.2MB

Download
memory/4768-39-0x0000000006070000-0x000000000608E000-memory.dmp

Filesize
120KB

Download
memory/4768-40-0x0000000006810000-0x0000000006876000-memory.dmp

Filesize
408KB

Download
memory/4768-27-0x0000000000400000-0x00000000004C6000-memory.dmp

Filesize
792KB

Download
memory/4768-53-0x0000000008050000-0x000000000805A000-memory.dmp

Filesize
40KB

Download
memory/4768-54-0x00000000746CE000-0x00000000746CF000-memory.dmp

Filesize
4KB

Download
memory/4768-55-0x00000000746C0000-0x0000000074E70000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads