dd547e910478800a3645e2ad02cf555f0ecb03aa405283a46b6b981b68a14840

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
13-02-2024 10:35

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General

Target

2024-02-13_7c2f23d0385ff1495f83ea1e16996e15_cryptolocker.exe
Size

53KB
MD5

7c2f23d0385ff1495f83ea1e16996e15
SHA1

bdd183d8242214b996901335bcd329e949874c8e
SHA256

dd547e910478800a3645e2ad02cf555f0ecb03aa405283a46b6b981b68a14840
SHA512

16fe7069000cc56782ba00f02cdf82a361b0359893cee086fd677b4a1a11e9ab00cd4dda815d61a5a69bcfe00c803f145296e3ced2425428d6a565ab63c10f22
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5QJz7g:6j+1NMOtEvwDpjr8oxE6

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral1/memory/1096-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1096-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c0000000122f3-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/1096-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1096-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c0000000122f3-13.dat	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 3 IoCs

resource	yara_rule
behavioral1/memory/1096-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1096-15-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000c0000000122f3-13.dat	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2660	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1096	2024-02-13_7c2f23d0385ff1495f83ea1e16996e15_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 1096 wrote to memory of 2660	1096	2024-02-13_7c2f23d0385ff1495f83ea1e16996e15_cryptolocker.exe	28
PID 1096 wrote to memory of 2660	1096	2024-02-13_7c2f23d0385ff1495f83ea1e16996e15_cryptolocker.exe	28
PID 1096 wrote to memory of 2660	1096	2024-02-13_7c2f23d0385ff1495f83ea1e16996e15_cryptolocker.exe	28
PID 1096 wrote to memory of 2660	1096	2024-02-13_7c2f23d0385ff1495f83ea1e16996e15_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-13_7c2f23d0385ff1495f83ea1e16996e15_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-13_7c2f23d0385ff1495f83ea1e16996e15_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1096
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2660

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

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

Filesize
53KB

MD5
4d14f15fb89a9ea7bc584502701d69d5

SHA1
c83cdaa4c4d6d80cbb879f6d83aee0a07fd49263

SHA256
88fa80a5e38c7a798e92dcfcb1af9f623c100f3dbaabab458de0ee70cb9ae1f5

SHA512
d8d427c88fee3cbd2be821dfeff4c281d686e9dccb63c9235a3354e560c9f203574b442b312ed5dc337fa1e8a081804398a10a935caba8107fe05f2026cf5e0f

Download Submit
memory/1096-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1096-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1096-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1096-4-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1096-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2660-17-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download