474de1de002f6ff2b3ec73aacb6341122c66a5b1e358ac942baf0878180d98ae

Analysis

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

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
12/03/2024, 15:38

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General

Target

2024-03-12_728f3f12832e0e36ff8480b860fe9ec4_cryptolocker.exe
Size

86KB
MD5

728f3f12832e0e36ff8480b860fe9ec4
SHA1

5af3a490d5e8abfc96a1555900dd93c6bfbcb0f4
SHA256

474de1de002f6ff2b3ec73aacb6341122c66a5b1e358ac942baf0878180d98ae
SHA512

73d686c37f5a24b77a7397cb98508f18a38116e3a84f5d15f94ec210ebab45090b297083a0f7580bf245d2d61dbe69cbaa904eba12d764b5a2912fdb3dc9bf52
SSDEEP

768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uyA36S7MpxRXrZSUfFKazNclMjNUvzkxraO:i5nkFGMOtEvwDpjNbwQEI8UtzNcO8zQ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2208-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a000000012252-11.dat	CryptoLocker_rule2
behavioral1/memory/2208-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2552-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2552-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/2208-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2552-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2552-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/memory/2208-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000a000000012252-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2208-15-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2552-16-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2552-26-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2552	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2208	2024-03-12_728f3f12832e0e36ff8480b860fe9ec4_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 2208 wrote to memory of 2552	2208	2024-03-12_728f3f12832e0e36ff8480b860fe9ec4_cryptolocker.exe	29
PID 2208 wrote to memory of 2552	2208	2024-03-12_728f3f12832e0e36ff8480b860fe9ec4_cryptolocker.exe	29
PID 2208 wrote to memory of 2552	2208	2024-03-12_728f3f12832e0e36ff8480b860fe9ec4_cryptolocker.exe	29
PID 2208 wrote to memory of 2552	2208	2024-03-12_728f3f12832e0e36ff8480b860fe9ec4_cryptolocker.exe	29

C:\Users\Admin\AppData\Local\Temp\2024-03-12_728f3f12832e0e36ff8480b860fe9ec4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-12_728f3f12832e0e36ff8480b860fe9ec4_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2208
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2552

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
86KB

MD5
474c6d809dfa052569dceedbdb9087e8

SHA1
b92ddd97a4adfa548914c85640e5020febfaf44b

SHA256
a12f250c3028afb35ea6dd75a7126b167ad4357192c76317c43f74c278a94af4

SHA512
86e93141f7df1706eea6eae215f0740da139e8209f7bebfc6f2f77245f8332d85d099abeba8d5752fcf11fc0f029f49ff3d339d7a801e1fc876445e09b42ad84

Download Submit
memory/2208-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2208-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2208-3-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2208-2-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/2208-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2552-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2552-18-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2552-21-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2552-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download