guloader | e778a38b56eb28c4ec4b89c3ae79ba0b0465b60184a828f63a06ec0de13181fb

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
31/08/2026, 06:54

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General

Target
e778a38b56eb28c4ec4b89c3ae79ba0b0465b60184a828f63a06ec0de13181fb.exe
Size 234KB
Sample260831-hpegjsfa79
SHA256 e778a38b56eb28c4ec4b89c3ae79ba0b0465b60184a828f63a06ec0de13181fb
MD5 04ac7d7b11d6dcbab12d48081a6da955
SHA1 b91b94837be3c3606cec877adad38fb8ab87bc06
SHA512 25d167ffdecb34c5a6b1bb5b98baf91e629fb0ccf124f6f465953795f5f16f49fbeff5e7aa9c3e0eb81fd1de05025ef8f4fbea49021727c9cabd873f6ac4f0d3
SSDEEP 6144:fMm4CCBMgsreEqBf8ebErVGwi2nuAoFXTT6OLFE:fMwNg/XU7GwvuAUXTT7LFE
TLSH
T12934010066E1D4A6E5555571CE279FF81AE0FE22CE60878723C87F0E3839BC1E91E74A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery downloader guloader

Malware Config

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
4408	e778a38b56eb28c4ec4b89c3ae79ba0b0465b60184a828f63a06ec0de13181fb.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4408	e778a38b56eb28c4ec4b89c3ae79ba0b0465b60184a828f63a06ec0de13181fb.exe
5000	e778a38b56eb28c4ec4b89c3ae79ba0b0465b60184a828f63a06ec0de13181fb.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e778a38b56eb28c4ec4b89c3ae79ba0b0465b60184a828f63a06ec0de13181fb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e778a38b56eb28c4ec4b89c3ae79ba0b0465b60184a828f63a06ec0de13181fb.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4408	e778a38b56eb28c4ec4b89c3ae79ba0b0465b60184a828f63a06ec0de13181fb.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4408 wrote to memory of 892	4408	e778a38b56eb28c4ec4b89c3ae79ba0b0465b60184a828f63a06ec0de13181fb.exe	94
PID 4408 wrote to memory of 5000	4408	e778a38b56eb28c4ec4b89c3ae79ba0b0465b60184a828f63a06ec0de13181fb.exe	95
PID 4408 wrote to memory of 5000	4408	e778a38b56eb28c4ec4b89c3ae79ba0b0465b60184a828f63a06ec0de13181fb.exe	95
PID 5000 wrote to memory of 2304	5000	e778a38b56eb28c4ec4b89c3ae79ba0b0465b60184a828f63a06ec0de13181fb.exe	96

C:\Users\Admin\AppData\Local\Temp\e778a38b56eb28c4ec4b89c3ae79ba0b0465b60184a828f63a06ec0de13181fb.exe
"C:\Users\Admin\AppData\Local\Temp\e778a38b56eb28c4ec4b89c3ae79ba0b0465b60184a828f63a06ec0de13181fb.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4408
- C:\Users\Admin\AppData\Local\Temp\e778a38b56eb28c4ec4b89c3ae79ba0b0465b60184a828f63a06ec0de13181fb.exe
  "C:\Users\Admin\AppData\Local\Temp\e778a38b56eb28c4ec4b89c3ae79ba0b0465b60184a828f63a06ec0de13181fb.exe"
  2⤵
  PID:892
- C:\Users\Admin\AppData\Local\Temp\e778a38b56eb28c4ec4b89c3ae79ba0b0465b60184a828f63a06ec0de13181fb.exe
  "C:\Users\Admin\AppData\Local\Temp\e778a38b56eb28c4ec4b89c3ae79ba0b0465b60184a828f63a06ec0de13181fb.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5000
- - C:\Users\Admin\AppData\Local\Temp\e778a38b56eb28c4ec4b89c3ae79ba0b0465b60184a828f63a06ec0de13181fb.exe
    "C:\Users\Admin\AppData\Local\Temp\e778a38b56eb28c4ec4b89c3ae79ba0b0465b60184a828f63a06ec0de13181fb.exe"
    3⤵
    PID:2304

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

System.dll

Path C:\Users\Admin\AppData\Local\Temp\nszCC50.tmp\System.dll
Size 12KB
SHA256 acf90ab6f4edc687e94aaf604d05e16e6cfb5e35873783b50c66f307a35c6506
MD5 6e55a6e7c3fdbd244042eb15cb1ec739
SHA1 070ea80e2192abc42f358d47b276990b5fa285a9
SHA512 2d504b74da38edc967e3859733a2a9cacd885db82f0ca69bfb66872e882707314c54238344d45945dc98bae85772aceef71a741787922d640627d3c8ae8f1c35
SSDEEP 192:MenY0qWTlt70IAj/lQ0sEWc/wtYbBH2aDybC7y+XBaIwL:M8+Qlt70Fj/lQRY/9VjjgL
TLSH
T1BE428D1193B089F2F590593805A67F2A6FBEAC5C27E44A63CFE345853D702DFA47A243
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4408-16-0x0000000004DD0000-0x0000000006E1F000-memory.dmp

Download

memory/4408-17-0x0000000073D25000-0x0000000073D26000-memory.dmp

Download

memory/4408-18-0x0000000004DD0000-0x0000000006E1F000-memory.dmp

Download

memory/5000-19-0x0000000000460000-0x00000000016B4000-memory.dmp

Download

memory/5000-20-0x00000000016C0000-0x000000000370F000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads