guloader | 16e10519af870b3333a6d37a823a9846a4c7a0b7caa5d35acf683ae31ae4e5b8

Analysis

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

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
27/07/2026, 01:24

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General

Target
16e10519af870b3333a6d37a823a9846a4c7a0b7caa5d35acf683ae31ae4e5b8.exe
Size 768KB
Sample260727-bsvvdagh44
SHA256 16e10519af870b3333a6d37a823a9846a4c7a0b7caa5d35acf683ae31ae4e5b8
MD5 c2873a7fe2c49d6b51931b893409be04
SHA1 683d7425cd81620e036ac7491e2a7712209b8e11
SHA512 8b77e7bc6f241c34c7ea023bd597654d9db97362aa6ec55e1d66ca61c9f3bf6c7bda33963718fb9801a4215093a5a96d9071de42e05a5581235c9905bb6a14d6
SSDEEP 24576:obudKXDY/adczFCmC5uENNSMtubw7uNQ5yprVD:6udKM2GFxkTJmw7QprR
TLSH
T1AFF41282BE74A655D6A0CE3164BD593C4B3AEFBBE648150B3180BF0A78F715F550BE02
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
2320	16e10519af870b3333a6d37a823a9846a4c7a0b7caa5d35acf683ae31ae4e5b8.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2320	16e10519af870b3333a6d37a823a9846a4c7a0b7caa5d35acf683ae31ae4e5b8.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Udraabstegnet215\skurede.bin	16e10519af870b3333a6d37a823a9846a4c7a0b7caa5d35acf683ae31ae4e5b8.exe
File opened for modification	C:\Windows\Fonts\Plumeopicean\Brnegaardene.exe	16e10519af870b3333a6d37a823a9846a4c7a0b7caa5d35acf683ae31ae4e5b8.exe
File opened for modification	C:\Windows\resources\turistbrochurers\humorizes.bin	16e10519af870b3333a6d37a823a9846a4c7a0b7caa5d35acf683ae31ae4e5b8.exe
File opened for modification	C:\Windows\resources\sulfates.ini	16e10519af870b3333a6d37a823a9846a4c7a0b7caa5d35acf683ae31ae4e5b8.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3896	3800	WerFault.exe	89

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	16e10519af870b3333a6d37a823a9846a4c7a0b7caa5d35acf683ae31ae4e5b8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	16e10519af870b3333a6d37a823a9846a4c7a0b7caa5d35acf683ae31ae4e5b8.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2320	16e10519af870b3333a6d37a823a9846a4c7a0b7caa5d35acf683ae31ae4e5b8.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2320 wrote to memory of 2636	2320	16e10519af870b3333a6d37a823a9846a4c7a0b7caa5d35acf683ae31ae4e5b8.exe	88
PID 2320 wrote to memory of 3800	2320	16e10519af870b3333a6d37a823a9846a4c7a0b7caa5d35acf683ae31ae4e5b8.exe	89
PID 2320 wrote to memory of 3800	2320	16e10519af870b3333a6d37a823a9846a4c7a0b7caa5d35acf683ae31ae4e5b8.exe	89

C:\Users\Admin\AppData\Local\Temp\16e10519af870b3333a6d37a823a9846a4c7a0b7caa5d35acf683ae31ae4e5b8.exe
"C:\Users\Admin\AppData\Local\Temp\16e10519af870b3333a6d37a823a9846a4c7a0b7caa5d35acf683ae31ae4e5b8.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2320
- C:\Users\Admin\AppData\Local\Temp\16e10519af870b3333a6d37a823a9846a4c7a0b7caa5d35acf683ae31ae4e5b8.exe
  "C:\Users\Admin\AppData\Local\Temp\16e10519af870b3333a6d37a823a9846a4c7a0b7caa5d35acf683ae31ae4e5b8.exe"
  2⤵
  PID:2636
- C:\Users\Admin\AppData\Local\Temp\16e10519af870b3333a6d37a823a9846a4c7a0b7caa5d35acf683ae31ae4e5b8.exe
  "C:\Users\Admin\AppData\Local\Temp\16e10519af870b3333a6d37a823a9846a4c7a0b7caa5d35acf683ae31ae4e5b8.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3800
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3800 -s 392
    3⤵
    - Program crash
    PID:3896

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3800 -ip 3800
1⤵
PID:2780

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\nstEA2.tmp\System.dll
Size 12KB
SHA256 8b4c47c4cf5e76ec57dd5a050d5acd832a0d532ee875d7b44f6cdaf68f90d37c
MD5 9b38a1b07a0ebc5c7e59e63346ecc2db
SHA1 97332a2ffcf12a3e3f27e7c05213b5d7faa13735
SHA512 26e77f8e10f6d8693c92bd036b53a3f6e0c523090ef8dfe479815f556ecd2b57fc90ce9f7cceebe70460d464decb27ad1fe240819fd56997764e96506b6a439c
SSDEEP 192:kjHcQ0qWTlt7wi5Aj/lM0sEWD/wtYbBjpNQybC7y+XZ40QPi:U/Qlt7wiij/lMRv/9V4b4r
TLSH
T1E8427C1297B089F2F151093419667F2A6FBEAC5D17F405A3CFE304C63D212CB9839243
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/2320-24-0x0000000005050000-0x0000000007843000-memory.dmp

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memory/2320-25-0x0000000073D55000-0x0000000073D56000-memory.dmp

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memory/2320-27-0x0000000005050000-0x0000000007843000-memory.dmp

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memory/3800-26-0x0000000000400000-0x0000000001654000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads