144cc0b7c052c07c3ef3360d7c8dda61258f3d7ab2a653906e9fff3614247d99

Analysis

max time kernel
149s
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
28/02/2024, 09:38

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General

Target

2024-02-28_6a05a6a0729c45128e982470252f3fb2_cryptolocker.exe
Size

41KB
MD5

6a05a6a0729c45128e982470252f3fb2
SHA1

038f82a82b29e5647bccf912d60f2a1a8a565c10
SHA256

144cc0b7c052c07c3ef3360d7c8dda61258f3d7ab2a653906e9fff3614247d99
SHA512

10f02169d38355311b834416b21028923f82611e0cacb41c1e1a87fe61f6a3aa723e8b4fafc3658eac27591a7a18f836ce37d5922727baa1be747c8f6797c6d4
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6/Ctsj:6j+1NMOtEvwDpjrR2sj

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/2160-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000400000001e5eb-13.dat	CryptoLocker_rule2
behavioral2/memory/860-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/2160-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/860-55-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral2/memory/2160-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x000400000001e5eb-13.dat	CryptoLocker_set1
behavioral2/memory/860-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/2160-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/860-55-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral2/memory/2160-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x000400000001e5eb-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/860-18-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/2160-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/860-55-0x0000000000500000-0x000000000050F000-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-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	2024-02-28_6a05a6a0729c45128e982470252f3fb2_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
860	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 2160 wrote to memory of 860	2160	2024-02-28_6a05a6a0729c45128e982470252f3fb2_cryptolocker.exe	89
PID 2160 wrote to memory of 860	2160	2024-02-28_6a05a6a0729c45128e982470252f3fb2_cryptolocker.exe	89
PID 2160 wrote to memory of 860	2160	2024-02-28_6a05a6a0729c45128e982470252f3fb2_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-02-28_6a05a6a0729c45128e982470252f3fb2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-28_6a05a6a0729c45128e982470252f3fb2_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2160
- 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:860

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
505bdde0ba35aaa01bf835055729d906

SHA1
a2d7d079e040ae4dfd8a53ea258cc1594bcb7a79

SHA256
c15d3295e380afb9857609ea7ce9fc98f802f56930dffcc126e79abefc45d7b2

SHA512
890961dd47ff3a85d04dfc615984663368852c52fb875a38463bd3728cdfb63ebb1cf546b6b5bceed8d55b8d095a08198fa363f9ca290e9bdee8241f38cc8c9b

Download Submit
memory/860-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/860-21-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/860-20-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/860-55-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2160-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2160-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/2160-2-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/2160-3-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/2160-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download