462166637864c1f29d76e97b7d66ae52cfdc08ae9b9060f867cef37b0d3c7e98

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
27/03/2024, 03:42

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General

Target

2024-03-27_37c2e42077804c1b3451d66ffdbf2ab3_cryptolocker.exe
Size

40KB
MD5

37c2e42077804c1b3451d66ffdbf2ab3
SHA1

dad809741b2ae446489d7deaaa12db1bcfbe306d
SHA256

462166637864c1f29d76e97b7d66ae52cfdc08ae9b9060f867cef37b0d3c7e98
SHA512

e38993c65992c4efe94c01e37cae19afd1791820efee6ded892b5aa9bfd38d389b693fbeb59a75b8d6bbfb092e12d6a3c66599e2fa4c9b0195b16b22006578b8
SSDEEP

768:TS5nQJ24LR7tOOtEvwDpjGqPhqlcnvhx5/xFRn0:m5nkFNMOtEvwDpjG8hhXS

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1888-1-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000012248-11.dat	CryptoLocker_rule2
behavioral1/memory/1888-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2936-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2936-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/1888-1-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1888-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2936-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2936-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/memory/1888-1-0x0000000000500000-0x000000000050E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x0009000000012248-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1888-15-0x0000000000500000-0x000000000050E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2936-17-0x0000000000500000-0x000000000050E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2936-26-0x0000000000500000-0x000000000050E000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2936	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1888	2024-03-27_37c2e42077804c1b3451d66ffdbf2ab3_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1888 wrote to memory of 2936	1888	2024-03-27_37c2e42077804c1b3451d66ffdbf2ab3_cryptolocker.exe	28
PID 1888 wrote to memory of 2936	1888	2024-03-27_37c2e42077804c1b3451d66ffdbf2ab3_cryptolocker.exe	28
PID 1888 wrote to memory of 2936	1888	2024-03-27_37c2e42077804c1b3451d66ffdbf2ab3_cryptolocker.exe	28
PID 1888 wrote to memory of 2936	1888	2024-03-27_37c2e42077804c1b3451d66ffdbf2ab3_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-27_37c2e42077804c1b3451d66ffdbf2ab3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-27_37c2e42077804c1b3451d66ffdbf2ab3_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1888
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2936

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
40KB

MD5
0af2386839991a9fc3f59508e6cb5626

SHA1
38aabe7c43dc67ccbdb602f4f8790c1a687d2621

SHA256
82c130594d27fcc1b96bae3561e97d293e91e0c4becb921387ba610aca70500a

SHA512
4488e636a35bf7b8b96838a6081ee5869b678db667e32d5044bf52699ea53ee7f06c675a4513aefb2213fe41474da76ca4e809eacb21c08e6675d0a02c3212a3

Download Submit
memory/1888-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1888-1-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1888-2-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/1888-3-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1888-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2936-17-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2936-18-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2936-25-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2936-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download