guloader | 92b4d4fcf62df03ff908adc43c39189ccd71ba78c7e61916985a80815d4ec18b

Analysis

max time kernel
149s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
10/08/2026, 15:36

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General

Target
92b4d4fcf62df03ff908adc43c39189ccd71ba78c7e61916985a80815d4ec18b.exe
Size 250KB
Sample260810-s1784shb49
SHA256 92b4d4fcf62df03ff908adc43c39189ccd71ba78c7e61916985a80815d4ec18b
MD5 9a5ef62a2495c56d93187644f4e22fa1
SHA1 2789785b618d651138b6f797b1f0b36f7abce850
SHA512 fec7f81bf7dc3a412ce9ce7cbc1439f7e4a7722a6a20aeed7bd7167d5bf390491ab714d12aefa84cb43f2c63742dcec41a51505b7bac5b064dfe680804406230
SSDEEP 3072:yWJ4TJIR1Djt+ul45dkDaJOdo7Xq2/Vg7wIRESO90DxfoduYniDVPwSTSeMgN1r7:ymGIhxAkDYOdoXmMWmO72AkgN1xF
TLSH
T17F441210A714C157F1A357303C299DBE1FDEF8140064BD076795AE2EBE726C29A0FB69
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
5052	92b4d4fcf62df03ff908adc43c39189ccd71ba78c7e61916985a80815d4ec18b.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
5052	92b4d4fcf62df03ff908adc43c39189ccd71ba78c7e61916985a80815d4ec18b.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
4600	4636	WerFault.exe	86

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	92b4d4fcf62df03ff908adc43c39189ccd71ba78c7e61916985a80815d4ec18b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	92b4d4fcf62df03ff908adc43c39189ccd71ba78c7e61916985a80815d4ec18b.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
5052	92b4d4fcf62df03ff908adc43c39189ccd71ba78c7e61916985a80815d4ec18b.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5052 wrote to memory of 4072	5052	92b4d4fcf62df03ff908adc43c39189ccd71ba78c7e61916985a80815d4ec18b.exe	85
PID 5052 wrote to memory of 4636	5052	92b4d4fcf62df03ff908adc43c39189ccd71ba78c7e61916985a80815d4ec18b.exe	86
PID 5052 wrote to memory of 4636	5052	92b4d4fcf62df03ff908adc43c39189ccd71ba78c7e61916985a80815d4ec18b.exe	86

C:\Users\Admin\AppData\Local\Temp\92b4d4fcf62df03ff908adc43c39189ccd71ba78c7e61916985a80815d4ec18b.exe
"C:\Users\Admin\AppData\Local\Temp\92b4d4fcf62df03ff908adc43c39189ccd71ba78c7e61916985a80815d4ec18b.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:5052
- C:\Users\Admin\AppData\Local\Temp\92b4d4fcf62df03ff908adc43c39189ccd71ba78c7e61916985a80815d4ec18b.exe
  "C:\Users\Admin\AppData\Local\Temp\92b4d4fcf62df03ff908adc43c39189ccd71ba78c7e61916985a80815d4ec18b.exe"
  2⤵
  PID:4072
- C:\Users\Admin\AppData\Local\Temp\92b4d4fcf62df03ff908adc43c39189ccd71ba78c7e61916985a80815d4ec18b.exe
  "C:\Users\Admin\AppData\Local\Temp\92b4d4fcf62df03ff908adc43c39189ccd71ba78c7e61916985a80815d4ec18b.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4636
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4636 -s 404
    3⤵
    - Program crash
    PID:4600

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4636 -ip 4636
1⤵
PID:4216

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\nsv4BA.tmp\System.dll
Size 12KB
SHA256 3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca
MD5 0d7ad4f45dc6f5aa87f606d0331c6901
SHA1 48df0911f0484cbe2a8cdd5362140b63c41ee457
SHA512 c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9
SSDEEP 192:1enY0LWelt70elWjvfstJcVtwtYbjnIOg5AaDnbC7ypXhtIj:18PJlt70esj0Mt9vn6ay6
TLSH
T1BA428E12977049F2F1A0183C10A67F265FBEAE5C1BE445A39FE380867D652DF9436343
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4636-13-0x0000000000400000-0x0000000001654000-memory.dmp

Download

memory/5052-11-0x00000000045C0000-0x000000000508C000-memory.dmp

Download

memory/5052-12-0x0000000073CD5000-0x0000000073CD6000-memory.dmp

Download

memory/5052-14-0x00000000045C0000-0x000000000508C000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

Replay Monitor

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Downloads