5eb051c24989b665931c4adf7d187dc6acb2df9c590d0d4f836932db754c13a5

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
08/03/2024, 06:30

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General

Target

2024-03-08_63a84885d816ab84921ffb92dd358b65_cryptolocker.exe
Size

94KB
MD5

63a84885d816ab84921ffb92dd358b65
SHA1

e0be5f6f962b19e9a1db90783dbfca11e6d78e28
SHA256

5eb051c24989b665931c4adf7d187dc6acb2df9c590d0d4f836932db754c13a5
SHA512

60d487fc5f7bab40881c7598461e56e892e2cb80b8dbaa6649f15cd54fc0be9ddf5448798cfa36625997ec7fd1f33e38a35d998fbe0098b1e3568854d6892737
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mktJyqd3:xj+VGMOtEvwDpjubwQEIiVmkuq9

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/3752-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000700000001e59e-13.dat	CryptoLocker_rule2
behavioral2/memory/3752-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4532-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral2/memory/3752-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x000700000001e59e-13.dat	CryptoLocker_set1
behavioral2/memory/3752-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/memory/4532-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral2/memory/3752-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x000700000001e59e-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/3752-17-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4532-26-0x0000000000500000-0x0000000000510000-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-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	2024-03-08_63a84885d816ab84921ffb92dd358b65_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4532	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 3752 wrote to memory of 4532	3752	2024-03-08_63a84885d816ab84921ffb92dd358b65_cryptolocker.exe	88
PID 3752 wrote to memory of 4532	3752	2024-03-08_63a84885d816ab84921ffb92dd358b65_cryptolocker.exe	88
PID 3752 wrote to memory of 4532	3752	2024-03-08_63a84885d816ab84921ffb92dd358b65_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-08_63a84885d816ab84921ffb92dd358b65_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_63a84885d816ab84921ffb92dd358b65_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3752
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4532

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
35c82f1af6e1081f7e985e8e4724ea9b

SHA1
1e0b8aad77d4ddd39056ce1ec1c2528e2a7c4f00

SHA256
c2e0cfd73874c66db8a26f83fbffd141e4c92cdde264fcf9634088c6b759512d

SHA512
69256611df6621a6e75dbd7c67096cc664ba069a9fceee3e7f4db002190397a4ef89b22b08cb2298e8e21ed38c2e1896985d040df0932e6ee0c873813fae804c

Download Submit
memory/3752-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3752-1-0x0000000000740000-0x0000000000746000-memory.dmp

Filesize
24KB

Download
memory/3752-2-0x0000000000740000-0x0000000000746000-memory.dmp

Filesize
24KB

Download
memory/3752-3-0x0000000000760000-0x0000000000766000-memory.dmp

Filesize
24KB

Download
memory/3752-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4532-19-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/4532-21-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/4532-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download