guloader | 2f7437764773163ebee47f26a6f382c433f9c79207098ae31bc8de8120bd23bb

Analysis

max time kernel
121s
max time network
125s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
29-06-2024 01:08

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General

Target

2f7437764773163ebee47f26a6f382c433f9c79207098ae31bc8de8120bd23bb.exe
Size

644KB
MD5

d74661d8a3692de49effeb307b9731a2
SHA1

a15f8f10b4e476d92bb5ad0c719e2b81292c80d5
SHA256

2f7437764773163ebee47f26a6f382c433f9c79207098ae31bc8de8120bd23bb
SHA512

66b85287ac07d28bf144164e205ef133c089e53bad40919eab1f81f10acde4db4e26a87627f0ee854e808efed6b17cf86dec3548ce6bb54958d20c676400bd91
SSDEEP

6144:z9KOQS4B4GMSGJpFhVZ36H1UZ4n1XktJoOo0De6PXf/DPqLXETqXoWi8ZRNe4o+F:zsB4GOVFVTop6PzPDqZoy+cRPX

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

1552 powershell.exe

pid	process
1552	powershell.exe

Loads dropped DLL 4 IoCs

Processes:

2f7437764773163ebee47f26a6f382c433f9c79207098ae31bc8de8120bd23bb.exe

pid	process
2428	2f7437764773163ebee47f26a6f382c433f9c79207098ae31bc8de8120bd23bb.exe
2428	2f7437764773163ebee47f26a6f382c433f9c79207098ae31bc8de8120bd23bb.exe
2428	2f7437764773163ebee47f26a6f382c433f9c79207098ae31bc8de8120bd23bb.exe
2428	2f7437764773163ebee47f26a6f382c433f9c79207098ae31bc8de8120bd23bb.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-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Windows\CurrentVersion\Run\Messalian21 = "%Superphlogisticate% -windowstyle minimized $Ramningerne=(Get-ItemProperty -Path 'HKCU:\\Extirpating241\\').Electrodynamometres;%Superphlogisticate% ($Ramningerne)"	reg.exe

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

Web Service
T1102

Processes:

flow ioc

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

Processes:

wab.exe

pid process

1740 wab.exe
1740 wab.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

powershell.exewab.exe

pid process

1552 powershell.exe
1740 wab.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

powershell.exe

description pid process target process

PID 1552 set thread context of 1740 1552 powershell.exe wab.exe
Drops file in Windows directory 1 IoCs

Processes:

2f7437764773163ebee47f26a6f382c433f9c79207098ae31bc8de8120bd23bb.exe

description ioc process

File opened for modification C:\Windows\Fonts\anorakkerne.ini 2f7437764773163ebee47f26a6f382c433f9c79207098ae31bc8de8120bd23bb.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

2492 reg.exe
Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

powershell.exe

pid process

1552 powershell.exe
1552 powershell.exe
1552 powershell.exe
1552 powershell.exe
1552 powershell.exe
1552 powershell.exe
1552 powershell.exe
1552 powershell.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

powershell.exe

pid process

1552 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 1552 powershell.exe

flow	ioc
3	drive.google.com
4	drive.google.com

pid	process
1740	wab.exe
1740	wab.exe

pid	process
1552	powershell.exe
1740	wab.exe

description	pid	process	target process
PID 1552 set thread context of 1740	1552	powershell.exe	wab.exe

description	ioc	process
File opened for modification	C:\Windows\Fonts\anorakkerne.ini	2f7437764773163ebee47f26a6f382c433f9c79207098ae31bc8de8120bd23bb.exe

pid	process
2492	reg.exe

pid	process
1552	powershell.exe
1552	powershell.exe
1552	powershell.exe
1552	powershell.exe
1552	powershell.exe
1552	powershell.exe
1552	powershell.exe
1552	powershell.exe

pid	process
1552	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1552	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

2f7437764773163ebee47f26a6f382c433f9c79207098ae31bc8de8120bd23bb.exepowershell.exewab.execmd.exe

description	pid	process	target process
PID 2428 wrote to memory of 1552	2428	2f7437764773163ebee47f26a6f382c433f9c79207098ae31bc8de8120bd23bb.exe	powershell.exe
PID 2428 wrote to memory of 1552	2428	2f7437764773163ebee47f26a6f382c433f9c79207098ae31bc8de8120bd23bb.exe	powershell.exe
PID 2428 wrote to memory of 1552	2428	2f7437764773163ebee47f26a6f382c433f9c79207098ae31bc8de8120bd23bb.exe	powershell.exe
PID 2428 wrote to memory of 1552	2428	2f7437764773163ebee47f26a6f382c433f9c79207098ae31bc8de8120bd23bb.exe	powershell.exe
PID 1552 wrote to memory of 1740	1552	powershell.exe	wab.exe
PID 1552 wrote to memory of 1740	1552	powershell.exe	wab.exe
PID 1552 wrote to memory of 1740	1552	powershell.exe	wab.exe
PID 1552 wrote to memory of 1740	1552	powershell.exe	wab.exe
PID 1552 wrote to memory of 1740	1552	powershell.exe	wab.exe
PID 1552 wrote to memory of 1740	1552	powershell.exe	wab.exe
PID 1740 wrote to memory of 1680	1740	wab.exe	cmd.exe
PID 1740 wrote to memory of 1680	1740	wab.exe	cmd.exe
PID 1740 wrote to memory of 1680	1740	wab.exe	cmd.exe
PID 1740 wrote to memory of 1680	1740	wab.exe	cmd.exe
PID 1680 wrote to memory of 2492	1680	cmd.exe	reg.exe
PID 1680 wrote to memory of 2492	1680	cmd.exe	reg.exe
PID 1680 wrote to memory of 2492	1680	cmd.exe	reg.exe
PID 1680 wrote to memory of 2492	1680	cmd.exe	reg.exe

C:\Users\Admin\AppData\Local\Temp\2f7437764773163ebee47f26a6f382c433f9c79207098ae31bc8de8120bd23bb.exe
"C:\Users\Admin\AppData\Local\Temp\2f7437764773163ebee47f26a6f382c433f9c79207098ae31bc8de8120bd23bb.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2428

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"powershell.exe" -windowstyle hidden "$Pilchard=Get-Content 'C:\Users\Admin\AppData\Roaming\Odontiasis\Goatishness\Lagunes.Dub170';$Geoponic=$Pilchard.SubString(72996,3);.$Geoponic($Pilchard)"
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:1552

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:1740

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Messalian21" /t REG_EXPAND_SZ /d "%Superphlogisticate% -windowstyle minimized $Ramningerne=(Get-ItemProperty -Path 'HKCU:\Extirpating241\').Electrodynamometres;%Superphlogisticate% ($Ramningerne)"
4⤵
- Suspicious use of WriteProcessMemory
PID:1680

C:\Windows\SysWOW64\reg.exe
REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Messalian21" /t REG_EXPAND_SZ /d "%Superphlogisticate% -windowstyle minimized $Ramningerne=(Get-ItemProperty -Path 'HKCU:\Extirpating241\').Electrodynamometres;%Superphlogisticate% ($Ramningerne)"
5⤵
- Adds Run key to start application
- Modifies registry key
PID:2492

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads

C:\Users\Admin\AppData\Roaming\Odontiasis\Goatishness\Energiraadet125.inc
Filesize
320KB

MD5
6d0817a4f4727ba8ea14ff6ca857e58d

SHA1
fe09e3ecf6a23f6555302b051d242a2cb7e541b3

SHA256
304599166bb4aa34363da2d093f62db8dafea05bc6f4e244f698c32123cd6705

SHA512
2f24b195c2d74eb37944606709831530c6c368fed75bddacade5d98249e0f0d62a5fadd9d06f83cf0c810716e1d38c90feac7e2d9f04081dedaadfcbbe23c4fe

Download Submit
C:\Users\Admin\AppData\Roaming\Odontiasis\Goatishness\Lagunes.Dub170
Filesize
71KB

MD5
47a79039251a5e4691e49f68b7ff0548

SHA1
eae91a21e99861a1a9f56c878ac1918bcda22089

SHA256
930794300c92f055d24cf92e8ad29dc41737f2adfe0f9c0371fe26e2d5b00dd0

SHA512
5b97980501a6f8f81c7d41ba1ae0811a88df9143aace7588f440ec2a59357e3a6ba893789cff65dcb17ef15b6ea9c9defd54d021171c1fda953b74fdd363ec52

Download Submit
C:\Users\Admin\Pictures\slukningen.lnk
Filesize
1002B

MD5
191f60436b7ebba3cf8c2fcbfa683db2

SHA1
e5102aa589d2d898e5bd32b7e891bd75e923eaa3

SHA256
fadb19c40e65c7c76d71b2098519f23010fcf669b6ad52e5601b6be82770a9fb

SHA512
5003ce9c825a169f36f4b8df74654797e06f444e957de1aa8bb9c32e2f75ffe1a828ba4dc6b7a11770b3f820ca843305f436a3b78b9a3adbcb202225db8f10c3

Download Submit
\Users\Admin\AppData\Local\Temp\nsy228F.tmp\AdvSplash.dll
Filesize
6KB

MD5
6def2cf3daf850acdc1a3e7340a439c4

SHA1
95d0d26f60cd5af697502cd5e53a54913ab188fb

SHA256
3ec3cf21a99ab0533ec2c451df3b5542733f70b972089d5c321ad7ae3b87d175

SHA512
16b1cf4783284d4a1282c569f5c416c713b4b339efcd4d3948bdf7da2194c597bd732d07ba9fabafcab323ba8c8da68845d4435ab9d1916b1810087ee1f5c413

Download Submit
\Users\Admin\AppData\Local\Temp\nsy228F.tmp\BgImage.dll
Filesize
7KB

MD5
2bb17d45e5ad92053ce1e500408dd8a9

SHA1
f5d3a7ee6e28df532e9ce33976c92ff30a5665e4

SHA256
71ce676703dad028e4083e6b960b1ed89885877079d46d5021506eaa6d99db53

SHA512
efdcb476b9b9b5691fe6b9cd77ecbe48d50c6683da01fd51c6b428cc262528fb3dcd295abe28718321b2307b0e032fcb599588f1eb00a93fd9e6a1f7b322b41f

Download Submit
\Users\Admin\AppData\Local\Temp\nsy228F.tmp\UserInfo.dll
Filesize
4KB

MD5
8ef0e4eb7c89cdd2b552de746f5e2a53

SHA1
820f681e7cec409a02b194a487d1c8af1038acf0

SHA256
41293b9f6588e0fbdc8fcf2a9bd8e2b244cd5ff038fc13033378da337219c9dc

SHA512
a68533e8a19637d0d44219549b24baba0dc4824424842f125600fda3edcafc4bb6bb340d57a00815f262d82373b440d58d6e4e5b2ceb29bb3f6bc4cbde66c3c5

Download Submit
\Users\Admin\AppData\Local\Temp\nsy228F.tmp\nsExec.dll
Filesize
6KB

MD5
c129bc26a26be6f5816a03520bb37833

SHA1
18100042155f948301701744b131c516bf26ddb8

SHA256
d3694fa0503158194129d113fcc1c83177ff5a5f93d898ce0bcfe9ce12f06bf4

SHA512
dbe79859c41e00a6e951cee889e7f0de29a712792fb531662285a2d6e384884518c7d5d983894c185b3d31d81213d2477cf4576b0114d352b759fe07a1704e63

Download Submit
memory/1552-160-0x0000000074160000-0x000000007470B000-memory.dmp

Filesize
5.7MB

Download
memory/1552-161-0x0000000074160000-0x000000007470B000-memory.dmp

Filesize
5.7MB

Download
memory/1552-162-0x0000000074160000-0x000000007470B000-memory.dmp

Filesize
5.7MB

Download
memory/1552-163-0x0000000074160000-0x000000007470B000-memory.dmp

Filesize
5.7MB

Download
memory/1552-159-0x0000000074161000-0x0000000074162000-memory.dmp

Filesize
4KB

Download
memory/1552-166-0x0000000074160000-0x000000007470B000-memory.dmp

Filesize
5.7MB

Download
memory/1552-168-0x0000000074160000-0x000000007470B000-memory.dmp

Filesize
5.7MB

Download
memory/1552-169-0x0000000006640000-0x000000000ABB9000-memory.dmp

Filesize
69.5MB

Download
memory/1552-170-0x0000000074160000-0x000000007470B000-memory.dmp

Filesize
5.7MB

Download
memory/1740-192-0x0000000001CF0000-0x0000000006269000-memory.dmp

Filesize
69.5MB

Download