e2b0754978a0afbb6f9899c253609fc454fb29112e617307f29611ae40fb176e

Analysis

max time kernel
149s
max time network
151s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
01/06/2024, 17:47

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General

Target

2024-06-01_0d90a7c867594313410030877ff5357d_cryptolocker.exe
Size

69KB
MD5

0d90a7c867594313410030877ff5357d
SHA1

beba6930251e743a5395258a6f666da4a83151a5
SHA256

e2b0754978a0afbb6f9899c253609fc454fb29112e617307f29611ae40fb176e
SHA512

b57d1c17a6a4ac8d8a5492856791a7ede96476a3430db49b5751be14c4cbe8e9b2f2ed7d1157fa7115f4ebb2f6b4793956878265331520086e7fd85ab48a9b1f
SSDEEP

768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uyA36S7MpxRXrZSUNsYD/dA:i5nkFGMOtEvwDpjNbwQEI8UZDW

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1028-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000012263-11.dat	CryptoLocker_rule2
behavioral1/memory/2844-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1028-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2844-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/1028-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1028-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2844-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/memory/1028-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000c000000012263-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2844-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1028-15-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2844-26-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2844	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1028	2024-06-01_0d90a7c867594313410030877ff5357d_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 1028 wrote to memory of 2844	1028	2024-06-01_0d90a7c867594313410030877ff5357d_cryptolocker.exe	28
PID 1028 wrote to memory of 2844	1028	2024-06-01_0d90a7c867594313410030877ff5357d_cryptolocker.exe	28
PID 1028 wrote to memory of 2844	1028	2024-06-01_0d90a7c867594313410030877ff5357d_cryptolocker.exe	28
PID 1028 wrote to memory of 2844	1028	2024-06-01_0d90a7c867594313410030877ff5357d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-01_0d90a7c867594313410030877ff5357d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-01_0d90a7c867594313410030877ff5357d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1028
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2844

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
69KB

MD5
40e4ab965e15179958ce0314474d9d26

SHA1
73f52ed61a8190241ab8e01e3680860a6ef194fe

SHA256
c0d88da2f58f80be174a6bffe7e666375251bd4c0a3cff693dd661a2a1a12ca6

SHA512
f0b4dd85fe0fd93f03911014a2c6a943f939c39c4da17e8c62a56bcb7e0b273cd91627b7232fc5c6eb296fd0a15f95ad585d8553315b232dc7fd4e222d7a2ad4

Download Submit
memory/1028-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1028-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1028-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1028-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1028-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

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

Filesize
60KB

Download
memory/2844-19-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2844-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download