2968486aa8fb97c5c5a64be5e5755abb99cb80d58185708241c3b7c48f7d5ed1

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
06-03-2024 05:50

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General

Target

2024-03-06_4ed44bb3a6883478e8a240d0f9fe8730_cryptolocker.exe
Size

94KB
MD5

4ed44bb3a6883478e8a240d0f9fe8730
SHA1

33f37eeabb570b6a524b8750d9d050e3acb923fd
SHA256

2968486aa8fb97c5c5a64be5e5755abb99cb80d58185708241c3b7c48f7d5ed1
SHA512

ca2ea09a0385379ddb579e3dbd8da2803db7d1f98af44cbfb20cd39030c663ad6c7a6c7f99227a11823c72a6b6908eb0029a1fc7d32a161da599dbe085d5cbf5
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mktJ32v:xj+VGMOtEvwDpjubwQEIiVmkqv

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/1300-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000400000001e5eb-13.dat	CryptoLocker_rule2
behavioral2/memory/1300-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/984-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral2/memory/1300-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x000400000001e5eb-13.dat	CryptoLocker_set1
behavioral2/memory/1300-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/memory/984-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral2/memory/1300-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x000400000001e5eb-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/1300-17-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/984-26-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

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-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	2024-03-06_4ed44bb3a6883478e8a240d0f9fe8730_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
984	misid.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 1300 wrote to memory of 984	1300	2024-03-06_4ed44bb3a6883478e8a240d0f9fe8730_cryptolocker.exe	87
PID 1300 wrote to memory of 984	1300	2024-03-06_4ed44bb3a6883478e8a240d0f9fe8730_cryptolocker.exe	87
PID 1300 wrote to memory of 984	1300	2024-03-06_4ed44bb3a6883478e8a240d0f9fe8730_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-03-06_4ed44bb3a6883478e8a240d0f9fe8730_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_4ed44bb3a6883478e8a240d0f9fe8730_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1300
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:984

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\misid.exe

Filesize
94KB

MD5
7e77ce43bef74db93f9983f521d1904f

SHA1
1285ed9db2d030558f862f8441d601cc5ddf7c29

SHA256
76f26eedf3bff27681432021f613548efd98e22b6b185027df99cf9df398ed8a

SHA512
77c400f0bd300b793adbcbf1a440c1c23bdb5658479537e7ada455127f1847abd13182b1747fbc69191b672f28c8e30080e5d96d430cd504dbcddff2a26e0330

Download Submit
memory/984-19-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/984-21-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/984-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1300-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1300-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/1300-2-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/1300-3-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/1300-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download