d13501643a22b320f4f9b75b02f251dcc8a7e257e95cd887502f05f295e495bb

Analysis

max time kernel
175s
max time network
183s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18/01/2024, 22:31

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General

Target

2024-01-18_216885ab059fe103149353ac18530f43_cryptolocker.exe
Size

45KB
MD5

216885ab059fe103149353ac18530f43
SHA1

7faa0cbacccb2fb8223b2dbef985377e7db631b5
SHA256

d13501643a22b320f4f9b75b02f251dcc8a7e257e95cd887502f05f295e495bb
SHA512

77f60dcd05ce33bda79e54c736503c76509b642602ba35c20a2b5b9a157763ae5176e49a5ce2173eb6a6f2ed468e42950101dba6d3e775c946adc4edd4a0a76e
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWE6BLbjG9Rzhwa7l:xj+VGMOtEvwDpjy+Tx

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2648-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2648-10-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000012270-12.dat	CryptoLocker_rule2
behavioral1/memory/2668-19-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2648-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2648-10-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0009000000012270-12.dat	CryptoLocker_set1
behavioral1/memory/2668-19-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral1/memory/2648-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2648-10-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x0009000000012270-12.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2668-19-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2668	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2648	2024-01-18_216885ab059fe103149353ac18530f43_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 2648 wrote to memory of 2668	2648	2024-01-18_216885ab059fe103149353ac18530f43_cryptolocker.exe	28
PID 2648 wrote to memory of 2668	2648	2024-01-18_216885ab059fe103149353ac18530f43_cryptolocker.exe	28
PID 2648 wrote to memory of 2668	2648	2024-01-18_216885ab059fe103149353ac18530f43_cryptolocker.exe	28
PID 2648 wrote to memory of 2668	2648	2024-01-18_216885ab059fe103149353ac18530f43_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-18_216885ab059fe103149353ac18530f43_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-18_216885ab059fe103149353ac18530f43_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2648
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2668

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
45KB

MD5
2e210f4d8db1c98edf0ccdebbd740722

SHA1
68cc0463a116d4adbc00be831c390cf35a521993

SHA256
0513848a47a49418fd4a54545d28ed63262cf1c6adaa39cf05f47fe97540d27a

SHA512
66823bade5382c3da1ed700e6aaf56381b2c7ab58652be8a3f999eeb3ba01ea5f92aa6a7b76bfcfd63c19f19dd8971cdf8c605357e4329a82e642f4bc001bcc6

Download Submit
memory/2648-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2648-1-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2648-3-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2648-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2648-10-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2668-18-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2668-17-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2668-19-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download