c8ed915b2a18da26e243bd9d871401e26f6aa2e9c0bacaad37f9e932e47a6d9b

Analysis

max time kernel
148s
max time network
136s
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, 23:25

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General

Target
2026-08-01_f33cdf0ba1cab3091636e7969f3cbdfd_cryptolocker_elex.exe
Size 63KB
Sample260801-3eckeshn9t
SHA256 c8ed915b2a18da26e243bd9d871401e26f6aa2e9c0bacaad37f9e932e47a6d9b
MD5 f33cdf0ba1cab3091636e7969f3cbdfd
SHA1 a7b5eb106226e39adce7f7378cfa4e106a2fb248
SHA512 1a70b65c9dfff4b433054fdcc2febab2c833f1e69677179a0b09ad67b50ac30d3b7df13b0c02de52ee9f3d27ce7ab1eda6447350ae8ac430383c73122f4c2a89
SSDEEP 768:bYv9g/WItCSsAGmXWhaI9cZnIe9N0hunrknljKrCY1K3Y:bYv9g/xtCSDx6A7f1rksrx1h
TLSH
T1115364387FE51A72E337CAB685F791C6B935B8227906891D51CF53490833F46EDA0A0E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

defense_evasion discovery spyware trojan

Malware Config

Signatures

Detection of CryptoLocker Variants 2 IoCs

resource	yara_rule
behavioral2/files/0x0006000000016ced-13.dat	CryptoLocker_rule2
behavioral2/memory/3036-18-0x0000000000400000-0x000000000040C000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3036	gewos.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	2026-08-01_f33cdf0ba1cab3091636e7969f3cbdfd_cryptolocker_elex.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gewos.exe

Modifies system certificate store 2 TTPs 2 IoCs

defense_evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\8094640EB5A7A1CA119C1FDDD59F810263A7FBD1	gewos.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\8094640EB5A7A1CA119C1FDDD59F810263A7FBD1\Blob = 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	gewos.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 3356 wrote to memory of 3036	3356	2026-08-01_f33cdf0ba1cab3091636e7969f3cbdfd_cryptolocker_elex.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-08-01_f33cdf0ba1cab3091636e7969f3cbdfd_cryptolocker_elex.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-01_f33cdf0ba1cab3091636e7969f3cbdfd_cryptolocker_elex.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3356
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Modifies system certificate store
  PID:3036

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Subvert Trust Controls

T1553

Install Root Certificate

T1553.004

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

gewos.exe

Path C:\Users\Admin\AppData\Local\Temp\gewos.exe
Size 63KB
SHA256 add98917e13de7aa083b145cb9dfc128312cfe13bb2162075ad4a5966ea2d6e9
MD5 0cadd4c90b1e146e46f3aaf2a32a4b4d
SHA1 3e8dca34f97090386ea4e90e57ef0c00a70bb18b
SHA512 64762f4482ede58b7ef2aea4b65e9afa38e6a5ac107dcc9bf538609c30d33dc26d8d68b0e7492c9f0a1274ec0a831b5650b5d2360e3d71b675c89d0ad7a764f3
SSDEEP 768:bYv9g/WItCSsAGmXWhaI9cZnIe9N0hunrknljKrCY1K32:bYv9g/xtCSDx6A7f1rksrx1L
TLSH
T11D5364387FE51A72E337CAB685F791C6B935B8227906891D51CF53490833F46EDA0A0E
MD5 SHA1 SHA512 SSDEEP TLSH

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gewosik.exe

Path C:\Users\Admin\AppData\Local\Temp\gewosik.exe
Size 4B
SHA256 042aea10a0f14f2d391373599be69d53a75dde9951fc3d3cd10b6100aa7a9f24
MD5 6de9439834c9147569741d3c9c9fc010
SHA1 38170c08cb458fd4879c34b6f608294c50312bbb
SHA512 be665179a17ceb7800fa02e7f44c9bcac7cc2715057c3c9e534cac6346f65a71996850dcef24082ea70ad550bc390221d10b80512bfa1b5b9e390d68e69ac98a
MD5 SHA1 SHA512

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memory/3036-18-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/3036-22-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/3036-29-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/3036-31-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/3356-0-0x0000000000404000-0x0000000000405000-memory.dmp

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memory/3356-1-0x0000000002100000-0x0000000002106000-memory.dmp

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memory/3356-2-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/3356-3-0x0000000000400000-0x0000000000406000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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