guloader | 8d869f72fa8076b1c43578e7672e2e8d2c16e40a86b72f9da3e64e5a8f817ea1

Analysis

max time kernel
164s
max time network
158s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
01/08/2026, 03:09

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General

Target
8d869f72fa8076b1c43578e7672e2e8d2c16e40a86b72f9da3e64e5a8f817ea1.exe
Size 341KB
Sample260801-dnphxawfph
SHA256 8d869f72fa8076b1c43578e7672e2e8d2c16e40a86b72f9da3e64e5a8f817ea1
MD5 b0aeeec0740fafba4c8e2e0f21d51b5d
SHA1 f6ae26a193b4f1a15e27c768265db36b348feb08
SHA512 9ce42875b6c506033ad9b01a4ecef6fd0b80038fedc95f04349f6646e0c49512cc43cb8ec412d61e96c6bd5218fdbf8abe1edd7f18a9b21b43eacfba75220a00
SSDEEP 6144:SMm4CCEv3liZFEDwxQRy4Cm4k2WQ5s9Px5RzJEasQsd29yeTWrf16pRXxCLxkY3h:SMw3v3lisDpRfr4c6iPx5fojd29NTWr7
TLSH
T1457412A162D0D43AED798231C9734AFDA1E69E18D862894B73D1BF3139712D17E0FB60
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 7 IoCs

pid	Process
5140	8d869f72fa8076b1c43578e7672e2e8d2c16e40a86b72f9da3e64e5a8f817ea1.exe
5140	8d869f72fa8076b1c43578e7672e2e8d2c16e40a86b72f9da3e64e5a8f817ea1.exe
5140	8d869f72fa8076b1c43578e7672e2e8d2c16e40a86b72f9da3e64e5a8f817ea1.exe
5140	8d869f72fa8076b1c43578e7672e2e8d2c16e40a86b72f9da3e64e5a8f817ea1.exe
5140	8d869f72fa8076b1c43578e7672e2e8d2c16e40a86b72f9da3e64e5a8f817ea1.exe
5140	8d869f72fa8076b1c43578e7672e2e8d2c16e40a86b72f9da3e64e5a8f817ea1.exe
5140	8d869f72fa8076b1c43578e7672e2e8d2c16e40a86b72f9da3e64e5a8f817ea1.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
5140	8d869f72fa8076b1c43578e7672e2e8d2c16e40a86b72f9da3e64e5a8f817ea1.exe
5416	8d869f72fa8076b1c43578e7672e2e8d2c16e40a86b72f9da3e64e5a8f817ea1.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	8d869f72fa8076b1c43578e7672e2e8d2c16e40a86b72f9da3e64e5a8f817ea1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8d869f72fa8076b1c43578e7672e2e8d2c16e40a86b72f9da3e64e5a8f817ea1.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
5140	8d869f72fa8076b1c43578e7672e2e8d2c16e40a86b72f9da3e64e5a8f817ea1.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5140 wrote to memory of 2212	5140	8d869f72fa8076b1c43578e7672e2e8d2c16e40a86b72f9da3e64e5a8f817ea1.exe	89
PID 5140 wrote to memory of 5416	5140	8d869f72fa8076b1c43578e7672e2e8d2c16e40a86b72f9da3e64e5a8f817ea1.exe	90
PID 5140 wrote to memory of 5416	5140	8d869f72fa8076b1c43578e7672e2e8d2c16e40a86b72f9da3e64e5a8f817ea1.exe	90
PID 5416 wrote to memory of 5584	5416	8d869f72fa8076b1c43578e7672e2e8d2c16e40a86b72f9da3e64e5a8f817ea1.exe	91

C:\Users\Admin\AppData\Local\Temp\8d869f72fa8076b1c43578e7672e2e8d2c16e40a86b72f9da3e64e5a8f817ea1.exe
"C:\Users\Admin\AppData\Local\Temp\8d869f72fa8076b1c43578e7672e2e8d2c16e40a86b72f9da3e64e5a8f817ea1.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:5140
- C:\Users\Admin\AppData\Local\Temp\8d869f72fa8076b1c43578e7672e2e8d2c16e40a86b72f9da3e64e5a8f817ea1.exe
  "C:\Users\Admin\AppData\Local\Temp\8d869f72fa8076b1c43578e7672e2e8d2c16e40a86b72f9da3e64e5a8f817ea1.exe"
  2⤵
  PID:2212
- C:\Users\Admin\AppData\Local\Temp\8d869f72fa8076b1c43578e7672e2e8d2c16e40a86b72f9da3e64e5a8f817ea1.exe
  "C:\Users\Admin\AppData\Local\Temp\8d869f72fa8076b1c43578e7672e2e8d2c16e40a86b72f9da3e64e5a8f817ea1.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5416
- - C:\Users\Admin\AppData\Local\Temp\8d869f72fa8076b1c43578e7672e2e8d2c16e40a86b72f9da3e64e5a8f817ea1.exe
    "C:\Users\Admin\AppData\Local\Temp\8d869f72fa8076b1c43578e7672e2e8d2c16e40a86b72f9da3e64e5a8f817ea1.exe"
    3⤵
    PID:5584

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

LangDLL.dll

Path C:\Users\Admin\AppData\Local\Temp\nsa907F.tmp\LangDLL.dll
Size 5KB
SHA256 09acfc5ee34a1dfa1af3a9d34f00c3b1327b56641feebd536e13752349c08ac8
MD5 014a3be4a7c1ccb217916dbf4f222bd1
SHA1 9b4c41eb0e84886beb5591d8357155e27f9c68ed
SHA512 0f3d1bf548e29a136150b699665a3f22c6ea2821701737363fa2920b51c391d735f1eae92dea8af655e7d07304bd3d06e4aff3f5a82fa22bcf5d1690013eb922
SSDEEP 48:S46+/iTKYKxbWsptIpBtWZ0iV8jAWiAJCvxft2O2B8mMofjLl:zsuPbOBtWZBV8jAWiAJCdv2CmfL
TLSH
T143C19470F3C248B9C491413368E737D36612EE746784500F9B6311AA38209E7AD3EBC3
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

System.dll

Path C:\Users\Admin\AppData\Local\Temp\nsa907F.tmp\System.dll
Size 12KB
SHA256 7a9ddee34562cd3703f1502b5c70e99cd5bba15de2b6845a3555033d7f6cb2a5
MD5 564bb0373067e1785cba7e4c24aab4bf
SHA1 7c9416a01d821b10b2eef97b80899d24014d6fc1
SHA512 22c61a323cb9293d7ec5c7e7e60674d0e2f7b29d55be25eb3c128ea2cd7440a1400cee17c43896b996278007c0d247f331a9b8964e3a40a0eb1404a9596c4472
SSDEEP 192:nenY0qWTlt70IAj/lQ0sEWc/wtYbBH2aDybC7y+XBDIwL:n8+Qlt70Fj/lQRY/9VjjfL
TLSH
T1F6427D1193B089F2F590593805A67F2A6FBEAC5C27E44963CFE345853D702DFA47A243
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/5140-35-0x0000000005950000-0x0000000006500000-memory.dmp

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memory/5140-36-0x0000000074495000-0x0000000074496000-memory.dmp

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memory/5140-38-0x0000000005950000-0x0000000006500000-memory.dmp

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memory/5416-37-0x0000000001780000-0x0000000002330000-memory.dmp

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memory/5416-40-0x00000000777CD000-0x00000000777CE000-memory.dmp

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memory/5416-39-0x000000007780F000-0x0000000077810000-memory.dmp

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memory/5416-41-0x0000000077895000-0x0000000077896000-memory.dmp

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memory/5416-42-0x0000000001780000-0x0000000002330000-memory.dmp

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memory/5416-43-0x0000000000490000-0x0000000001776000-memory.dmp

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memory/5416-44-0x0000000077895000-0x0000000077896000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads