0f3cd5041e4ba2c451c1bbfba274a1a2c16978db2305297f522e1a59094415c4

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/05/2024, 00:35

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General

Target

2024-05-25_58ee60ed8adfd4afc280839fb13f8a9a_cryptolocker.exe
Size

67KB
MD5

58ee60ed8adfd4afc280839fb13f8a9a
SHA1

fec1a1ea2f6ba7b954cea4bbc06e96f8d71cfd5d
SHA256

0f3cd5041e4ba2c451c1bbfba274a1a2c16978db2305297f522e1a59094415c4
SHA512

3f1dbf9d66152b239985390cbb40cedf169017658a9dc41d9cbaf9e1aa35410d43430a783efbc8a08fccbab9e69b6fa83ae92f33a536e5cadb693fee72b6e07b
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2l9tMPvdfGyZ:TCjsIOtEvwDpj5HE/OUHnSMYu

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1964-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c00000001565d-11.dat	CryptoLocker_rule2
behavioral1/memory/1964-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2888-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2888-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1964-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c00000001565d-11.dat	CryptoLocker_set1
behavioral1/memory/1964-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2888-17-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2888-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2888	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1964	2024-05-25_58ee60ed8adfd4afc280839fb13f8a9a_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 1964 wrote to memory of 2888	1964	2024-05-25_58ee60ed8adfd4afc280839fb13f8a9a_cryptolocker.exe	28
PID 1964 wrote to memory of 2888	1964	2024-05-25_58ee60ed8adfd4afc280839fb13f8a9a_cryptolocker.exe	28
PID 1964 wrote to memory of 2888	1964	2024-05-25_58ee60ed8adfd4afc280839fb13f8a9a_cryptolocker.exe	28
PID 1964 wrote to memory of 2888	1964	2024-05-25_58ee60ed8adfd4afc280839fb13f8a9a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-25_58ee60ed8adfd4afc280839fb13f8a9a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-25_58ee60ed8adfd4afc280839fb13f8a9a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1964
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2888

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
67KB

MD5
8b6f2a455d832487f75957abe079721b

SHA1
543cf29413938f77f36541bd1f4f88a4a68c0784

SHA256
e63daf6f3745e817aa26a4ae7a168a3fb8c1f2ea2af85c945d69e41321187597

SHA512
0ae14595550eb22f0c32d120690b72c67717cb382b5c08ee239b61f4ef987824add651dc8f3e69a74adf473c1d08598a13307756bd8fd7f09e8fbe840409853d

Download Submit
memory/1964-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1964-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1964-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1964-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1964-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2888-17-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2888-18-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/2888-25-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2888-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download