guloader | 27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56

General

Target

27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
Size

120KB
MD5

eebba195900bad46e7bbc0fa0056a807
SHA1

710d6af6f423bfb4445c9db04cff7fe1256c2c76
SHA256

27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56
SHA512

fab6e9a79eba833ec6d9ec09ae9450bea1f0a9bad0ff44a2e24e0d31a653834c9cfd64d7ef7ecbe43537d29ed921fc5df1dc6e750136cff8a49540961cfdce0c

Score

10^/10

guloader neshta downloader persistence spyware stealer

Malware Config

Signatures

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

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1042

Processes:

27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe

Neshta
Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.
persistence spyware neshta
Executes dropped EXE 1 IoCs

Processes:

27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe

pid process

2524 27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe

Checks QEMU agent file 2 TTPs 2 IoCs

Checks presence of QEMU agent, possibly to detect virtualization.

Query Registry

T1012

System Information Discovery

T1082

Processes:

27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe

description	ioc	process
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe

Loads dropped DLL 1 IoCs

Processes:

27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe

pid process

1864 27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

pid	process
1864	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe

pid	process
2524	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
1864	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe

description	pid	process	target process
PID 2524 set thread context of 1864	2524	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe

Drops file in Program Files directory 53 IoCs

Processes:

27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe

description	ioc	process
File opened for modification	C:\PROGRA~2\WI8A19~1\ImagingDevices.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~3\MICROS~1\CLICKT~1\{9AC08~1\INTEGR~1.EXE	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Browser\WCCHRO~1\WCCHRO~1.EXE	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wabmig.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~4.EXE	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOF5E2~1.EXE	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wab.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~3.EXE	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\ACCESS~1\wordpad.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\64BITM~1.EXE	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~1.EXE	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpshare.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jaureg.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\arh.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jusched.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GO664E~1.EXE	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\FULLTR~1.EXE	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\LOGTRA~1.EXE	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROBR~1.EXE	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\WinMail.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOBD5D~1.EXE	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\AdobeARM.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\armsvc.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jucheck.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\WOW_HE~1.EXE	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~2.EXE	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\setup_wm.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\READER~1.EXE	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ExtExport.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~3\Adobe\Setup\{AC76B~1\setup.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{F4220~1\VC_RED~1.EXE	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\32BITM~1.EXE	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\ADOBEA~1.EXE	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe

Drops file in Windows directory 1 IoCs

Processes:

27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe

description ioc process

File opened for modification C:\Windows\svchost.com 27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	ioc	process
File opened for modification	C:\Windows\svchost.com	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe

Modifies registry class 1 IoCs

Processes:

27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe

pid process

2524 27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe

pid process

2524 27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe

description	pid	process	target process
PID 2332 wrote to memory of 2524	2332	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
PID 2332 wrote to memory of 2524	2332	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
PID 2332 wrote to memory of 2524	2332	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
PID 2524 wrote to memory of 1864	2524	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
PID 2524 wrote to memory of 1864	2524	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
PID 2524 wrote to memory of 1864	2524	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
PID 2524 wrote to memory of 1864	2524	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe	27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe

C:\Users\Admin\AppData\Local\Temp\27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
"C:\Users\Admin\AppData\Local\Temp\27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe"
1⤵
- Modifies system executable filetype association
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2332

C:\Users\Admin\AppData\Local\Temp\3582-490\27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe"
2⤵
- Executes dropped EXE
- Checks QEMU agent file
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2524

C:\Users\Admin\AppData\Local\Temp\3582-490\27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe"
3⤵
- Checks QEMU agent file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:1864

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Change Default File Association

1

T1042

Privilege Escalation

Defense Evasion

Modify Registry

Web Service

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\3582-490\27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
MD5
415ec37f083919417aefd51bdfaa3831

SHA1
3fd77bec41ea7532f5817c648e1cdcb97898c1bc

SHA256
d8a0961f251666689e124d09421565696a8a6710216b0a46be1e47805229e849

SHA512
a637aebbbba9411130418c5b6c8666892dd8a33094855e60152e8e5614a278e3f01af03d026c1cc9cec5660365af593fae4bca3b18d4b9e0d635964f4ff76a5d

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
MD5
415ec37f083919417aefd51bdfaa3831

SHA1
3fd77bec41ea7532f5817c648e1cdcb97898c1bc

SHA256
d8a0961f251666689e124d09421565696a8a6710216b0a46be1e47805229e849

SHA512
a637aebbbba9411130418c5b6c8666892dd8a33094855e60152e8e5614a278e3f01af03d026c1cc9cec5660365af593fae4bca3b18d4b9e0d635964f4ff76a5d

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\27544130e07733ee39f8bcf161fcc408b2489da2251d37a826f5ff48eb057c56.exe
MD5
415ec37f083919417aefd51bdfaa3831

SHA1
3fd77bec41ea7532f5817c648e1cdcb97898c1bc

SHA256
d8a0961f251666689e124d09421565696a8a6710216b0a46be1e47805229e849

SHA512
a637aebbbba9411130418c5b6c8666892dd8a33094855e60152e8e5614a278e3f01af03d026c1cc9cec5660365af593fae4bca3b18d4b9e0d635964f4ff76a5d

Download Submit
memory/1864-128-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/1864-129-0x00007FFA8CCC0000-0x00007FFA8CE9B000-memory.dmp

Filesize
1.9MB

Download
memory/1864-121-0x000000000040137C-mapping.dmp

Download
memory/1864-123-0x0000000000400000-0x0000000000553000-memory.dmp

Filesize
1.3MB

Download
memory/1864-124-0x0000000000401000-0x00000000004FD000-memory.dmp

Filesize
1008KB

Download
memory/1864-130-0x0000000077E40000-0x0000000077FCE000-memory.dmp

Filesize
1.6MB

Download
memory/2524-120-0x0000000002180000-0x000000000218F000-memory.dmp

Filesize
60KB

Download
memory/2524-127-0x0000000077E40000-0x0000000077FCE000-memory.dmp

Filesize
1.6MB

Download
memory/2524-125-0x00007FFA8CCC0000-0x00007FFA8CE9B000-memory.dmp

Filesize
1.9MB

Download
memory/2524-126-0x0000000077E40000-0x0000000077FCE000-memory.dmp

Filesize
1.6MB

Download
memory/2524-115-0x0000000000000000-mapping.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads