08442abb36249b91e1e321aad4635ab55c91c1b3380573611a5a5f167dfcfdf9

Analysis

max time kernel
0s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
03-02-2024 03:01

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General

Target

2024-02-03_0be230b32121e069fcd01c63a70f8eec_cryptolocker.exe
Size

59KB
MD5

0be230b32121e069fcd01c63a70f8eec
SHA1

e7e64febb2576a37dcfb212ac897b268132c178a
SHA256

08442abb36249b91e1e321aad4635ab55c91c1b3380573611a5a5f167dfcfdf9
SHA512

c4d0f5a3d5823690cee19ce3cda03831b5c9c44f1827046e4c3d538b5b67503772e23233f4e945b8c31f24e92536ba38e441e11bce41a119989a299fa7a169e7
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHN5:btng54SMLr+/AO/kIhfoKMHd+

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 2 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023226-12.dat	CryptoLocker_rule2
behavioral2/files/0x0007000000023226-15.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-02-03_0be230b32121e069fcd01c63a70f8eec_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4424	gewos.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2956 wrote to memory of 4424	2956	2024-02-03_0be230b32121e069fcd01c63a70f8eec_cryptolocker.exe	21
PID 2956 wrote to memory of 4424	2956	2024-02-03_0be230b32121e069fcd01c63a70f8eec_cryptolocker.exe	21
PID 2956 wrote to memory of 4424	2956	2024-02-03_0be230b32121e069fcd01c63a70f8eec_cryptolocker.exe	21

C:\Users\Admin\AppData\Local\Temp\2024-02-03_0be230b32121e069fcd01c63a70f8eec_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-03_0be230b32121e069fcd01c63a70f8eec_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2956
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  PID:4424

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\gewos.exe

Filesize
60KB

MD5
c5c61a2ad5d3e63083ff5f27992fbe5f

SHA1
84923bece46ed1cb44429b3bbb21c25446ed29cd

SHA256
007641cca4cbddf067342484af7896a4fd60731bad590443c48a14d0344ac729

SHA512
f34fdaaed4c016498f1482332e17eb72cd020a97b025c4caa9dc4e85327c91baf811115724b11b3a57a912cd992bd957b512c72c31a57a51f8c11ba622964d55

Download Submit
C:\Users\Admin\AppData\Local\Temp\gewos.exe

Filesize
23KB

MD5
fa5d326e71746987d890c351d078193a

SHA1
aa9afb01d3bd37b03bbe8a660bea204c7931e414

SHA256
19aa739810d55c9a357528ec68bc1ed3410c87245485006363094b625a470915

SHA512
994508cdb66a64566f7ec6b1534fd29097e0b811c0a31917fe1e55a0d44bce5df561f92bc7215f26ede4510e44e811c2fe7afd9837a687494edc1f8419bf10df

Download Submit
memory/2956-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2956-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2956-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4424-20-0x0000000001FD0000-0x0000000001FD6000-memory.dmp

Filesize
24KB

Download