cde47e569e642b1b91d8d1f0959e26025b9862c53a6261dd9c537d2ea17da93d

Analysis

max time kernel
143s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
01-02-2024 09:39

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General

Target

2024-02-01_89835e3841a8666b7d1cd6ac7020e0b0_cryptolocker.exe
Size

41KB
MD5

89835e3841a8666b7d1cd6ac7020e0b0
SHA1

d4f80ab90f36840812bdb317b7f4baf6eaf98108
SHA256

cde47e569e642b1b91d8d1f0959e26025b9862c53a6261dd9c537d2ea17da93d
SHA512

3534f4dedc4ce01dfcecfd397810ff487fdb0fd77ae21bf6ca74ae4cb2ee57c39e2d4877ecbdc9e5f251791ef62b161d94b4f74a29f59d0537df4ff60575d11b
SSDEEP

384:60VkMq01bJ3wtEwPS8HLEh+Jagz+3be+26aIIcVRYpetOOtEvwDpjqIGRmdHzOOp:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6/L

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/3832-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x0006000000023217-13.dat	CryptoLocker_rule2
behavioral2/memory/3832-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/1708-54-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral2/memory/3832-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x0006000000023217-13.dat	CryptoLocker_set1
behavioral2/memory/3832-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/1708-54-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral2/memory/3832-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x0006000000023217-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/3832-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/1708-54-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Checks computer location settings 2 TTPs 2 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-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation	2024-02-01_89835e3841a8666b7d1cd6ac7020e0b0_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
1708	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 3832 wrote to memory of 1708	3832	2024-02-01_89835e3841a8666b7d1cd6ac7020e0b0_cryptolocker.exe	84
PID 3832 wrote to memory of 1708	3832	2024-02-01_89835e3841a8666b7d1cd6ac7020e0b0_cryptolocker.exe	84
PID 3832 wrote to memory of 1708	3832	2024-02-01_89835e3841a8666b7d1cd6ac7020e0b0_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-01_89835e3841a8666b7d1cd6ac7020e0b0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-01_89835e3841a8666b7d1cd6ac7020e0b0_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3832
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:1708

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
41KB

MD5
165a8c551c994f551da2f915ab625f0a

SHA1
382da22fc1a27b89cb0fefb9b3d2540425cea321

SHA256
4eacd74f81471ae2679ec571eff9818bd060f405b712a41c144a2824f3f53651

SHA512
8702307a257f703eb216d16f63abd9ba664e98e59232bedbcc02503cfffb268f1b31907af8448520fc52f906cf40ac538cd57a1823efe5cb43ac957557752309

Download Submit
memory/1708-20-0x0000000001F60000-0x0000000001F66000-memory.dmp

Filesize
24KB

Download
memory/1708-19-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download
memory/1708-54-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3832-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3832-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3832-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3832-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3832-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download