guloader | 5eab33aa65a63135b926cad2766fd657c092c2704cc5155462d119053285cda8

General

Target

hypoc.exe
Size

104KB
MD5

916c42dbafbbaa9d7f5208494710c354
SHA1

952c4314cadc08ca01a1227e999f645c12760aeb
SHA256

5eab33aa65a63135b926cad2766fd657c092c2704cc5155462d119053285cda8
SHA512

0d95757ba0bacc5bd43a58048afb66c74b07d5252ce99e78efa0f1fbe7da4baa3e5e3adf1d53422ba9225a3ea1a2a40a1083fed69b6220132d28bf8f840fef61

Score

10^/10

guloader modiloader downloader persistence trojan

Malware Config

Signatures

Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader
ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader

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:

hypoc.exeieinstal.exe

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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

ieinstal.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run	ieinstal.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\Afstig2 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\muml\\hypoc.exe"	ieinstal.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

hypoc.exeieinstal.exe

pid process

1648 hypoc.exe
1328 ieinstal.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

hypoc.exe

description pid process target process

PID 1648 set thread context of 1328 1648 hypoc.exe ieinstal.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1596 1328 WerFault.exe ieinstal.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

WerFault.exe

pid process

1596 WerFault.exe
1596 WerFault.exe
1596 WerFault.exe
1596 WerFault.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

WerFault.exe

pid process

1596 WerFault.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

hypoc.exe

pid process

1648 hypoc.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

WerFault.exe

description pid process

Token: SeDebugPrivilege 1596 WerFault.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

hypoc.exe

pid process

1648 hypoc.exe

pid	process
1648	hypoc.exe
1328	ieinstal.exe

description	pid	process	target process
PID 1648 set thread context of 1328	1648	hypoc.exe	ieinstal.exe

pid	pid_target	process	target process
1596	1328	WerFault.exe	ieinstal.exe

pid	process
1596	WerFault.exe
1596	WerFault.exe
1596	WerFault.exe
1596	WerFault.exe

pid	process
1596	WerFault.exe

pid	process
1648	hypoc.exe

description	pid	process
Token: SeDebugPrivilege	1596	WerFault.exe

pid	process
1648	hypoc.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

hypoc.exeieinstal.exe

description	pid	process	target process
PID 1648 wrote to memory of 1328	1648	hypoc.exe	ieinstal.exe
PID 1648 wrote to memory of 1328	1648	hypoc.exe	ieinstal.exe
PID 1648 wrote to memory of 1328	1648	hypoc.exe	ieinstal.exe
PID 1648 wrote to memory of 1328	1648	hypoc.exe	ieinstal.exe
PID 1648 wrote to memory of 1328	1648	hypoc.exe	ieinstal.exe
PID 1648 wrote to memory of 1328	1648	hypoc.exe	ieinstal.exe
PID 1648 wrote to memory of 1328	1648	hypoc.exe	ieinstal.exe
PID 1648 wrote to memory of 1328	1648	hypoc.exe	ieinstal.exe
PID 1328 wrote to memory of 1596	1328	ieinstal.exe	WerFault.exe
PID 1328 wrote to memory of 1596	1328	ieinstal.exe	WerFault.exe
PID 1328 wrote to memory of 1596	1328	ieinstal.exe	WerFault.exe
PID 1328 wrote to memory of 1596	1328	ieinstal.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\hypoc.exe
"C:\Users\Admin\AppData\Local\Temp\hypoc.exe"
1⤵
- Checks QEMU agent file
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1648

C:\Program Files (x86)\internet explorer\ieinstal.exe
"C:\Users\Admin\AppData\Local\Temp\hypoc.exe"
2⤵
- Checks QEMU agent file
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of WriteProcessMemory
PID:1328

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1328 -s 580
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1596

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1328-65-0x0000000000110000-0x0000000000210000-memory.dmp

Filesize
1024KB

Download
memory/1328-66-0x0000000000110000-mapping.dmp

Download
memory/1328-72-0x0000000077650000-0x00000000777F9000-memory.dmp

Filesize
1.7MB

Download
memory/1328-73-0x0000000077840000-0x0000000077916000-memory.dmp

Filesize
856KB

Download
memory/1596-74-0x0000000000000000-mapping.dmp

Download
memory/1596-75-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/1648-62-0x0000000000240000-0x000000000024F000-memory.dmp

Filesize
60KB

Download
memory/1648-64-0x0000000076641000-0x0000000076643000-memory.dmp

Filesize
8KB

Download
memory/1648-67-0x0000000077650000-0x00000000777F9000-memory.dmp

Filesize
1.7MB

Download
memory/1648-68-0x0000000077830000-0x00000000779B0000-memory.dmp

Filesize
1.5MB

Download
memory/1648-69-0x0000000077840000-0x0000000077916000-memory.dmp

Filesize
856KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads