ccb2852d2dc7ccee2553fc8f110aa3e4b837a928526e12282a735426bfeddeb4

Analysis

max time kernel
87s
max time network
124s
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 16:36

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General

Target

2024-02-01_946e551152bc346746ab99b16f602649_cryptolocker.exe
Size

62KB
MD5

946e551152bc346746ab99b16f602649
SHA1

d6b1a94582075a7751ee7e7e3a8883791ee4176e
SHA256

ccb2852d2dc7ccee2553fc8f110aa3e4b837a928526e12282a735426bfeddeb4
SHA512

ceafb0ebfec0ce99d5126813a2e99d471f8753b403b0c0133df9b6427c0ade1a5dbf649423b24571534d6faa5155b743b0baa5ef11a1c725d5ab29a2b8b893c9
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5I52kGEO10KmY8:6j+1NMOtEvwDpjr8ox8UDEy0KmY8

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/2844-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x00090000000231fc-13.dat	CryptoLocker_rule2
behavioral2/memory/2844-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/2196-54-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral2/memory/2844-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x00090000000231fc-13.dat	CryptoLocker_set1
behavioral2/memory/2844-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/2196-54-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral2/memory/2844-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x00090000000231fc-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/2844-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/2196-54-0x0000000000500000-0x000000000050F000-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-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	2024-02-01_946e551152bc346746ab99b16f602649_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
2196	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 2844 wrote to memory of 2196	2844	2024-02-01_946e551152bc346746ab99b16f602649_cryptolocker.exe	84
PID 2844 wrote to memory of 2196	2844	2024-02-01_946e551152bc346746ab99b16f602649_cryptolocker.exe	84
PID 2844 wrote to memory of 2196	2844	2024-02-01_946e551152bc346746ab99b16f602649_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-01_946e551152bc346746ab99b16f602649_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-01_946e551152bc346746ab99b16f602649_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2844
- 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:2196

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
62KB

MD5
127a6101a965a7e00e13562d777770ea

SHA1
b0f7bf5f087ebe6444b8e41eaf99077022b4a2b1

SHA256
c572ef5112023a87cbde22e125601cfce92e5f33e92b0091647e2818ccdcd658

SHA512
247bceddb1d00d2b14b9621ed5ea0170b80a8f86c6d908ededaf951b4bb5e19a0742419fca88794fcd48b53fb9fd58459204c453944c837f2c15b2ef390cedb9

Download Submit
memory/2196-19-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download
memory/2196-25-0x0000000002150000-0x0000000002156000-memory.dmp

Filesize
24KB

Download
memory/2196-54-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2844-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2844-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2844-2-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2844-3-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/2844-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download