bd75509af4baaf8cf48a1a705ab61dd59ddde8c1798a0b83ac41cd10409597af

Analysis

max time kernel
150s
max time network
156s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/04/2024, 19:09

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General

Target

2024-04-10_fe2d90fdeafa99abc27dd51a351c4d91_cryptolocker.exe
Size

101KB
MD5

fe2d90fdeafa99abc27dd51a351c4d91
SHA1

581291910e2ab4e83b1153bea6f0d0ece2e0b1fc
SHA256

bd75509af4baaf8cf48a1a705ab61dd59ddde8c1798a0b83ac41cd10409597af
SHA512

715a3c229242b380316d53a7dca5d846ef50b8516103121c5dde6b02cbed5e3396a19c346fcc388ad1e5e49edf5d2133f77324fac77a908dff943360534e1ab1
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mktJHlv/k2yO3xp:xj+VGMOtEvwDpjubwQEIiVmkxv/u8

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1272-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0008000000012272-11.dat	CryptoLocker_rule2
behavioral1/memory/1272-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2632-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2632-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1272-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0008000000012272-11.dat	CryptoLocker_set1
behavioral1/memory/1272-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2632-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2632-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/memory/1272-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x0008000000012272-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1272-15-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2632-17-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2632-27-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2632	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1272	2024-04-10_fe2d90fdeafa99abc27dd51a351c4d91_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 1272 wrote to memory of 2632	1272	2024-04-10_fe2d90fdeafa99abc27dd51a351c4d91_cryptolocker.exe	28
PID 1272 wrote to memory of 2632	1272	2024-04-10_fe2d90fdeafa99abc27dd51a351c4d91_cryptolocker.exe	28
PID 1272 wrote to memory of 2632	1272	2024-04-10_fe2d90fdeafa99abc27dd51a351c4d91_cryptolocker.exe	28
PID 1272 wrote to memory of 2632	1272	2024-04-10_fe2d90fdeafa99abc27dd51a351c4d91_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-10_fe2d90fdeafa99abc27dd51a351c4d91_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-10_fe2d90fdeafa99abc27dd51a351c4d91_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1272
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2632

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
101KB

MD5
4b83bd27c240824b5754e18a702d69d2

SHA1
ae248470eedee5b0de2b4aec90d6ecaff27647b3

SHA256
8f9626c09e2f5b06b94d277438ebc3d1f1d843a5df69a187fb7ecc30cc826149

SHA512
dbb01e3a8db0c49d3ddd4c264d45d66fcb5934bfd70e3b281b2e6738d4fdf40804a891a0fcaf9d24c6f6906e94f0a972d53903bc1f371ec0d9317720d6c1cb47

Download Submit
memory/1272-1-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/1272-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1272-2-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/1272-4-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/1272-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1272-16-0x00000000026C0000-0x00000000026D0000-memory.dmp

Filesize
64KB

Download
memory/2632-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2632-19-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2632-20-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2632-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download