e6f2ff6e896cd6e0a09df3c01db810f1cfb139cc4d9e87b303b7761017e50b89

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
18/04/2024, 10:26

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General

Target

2024-04-18_0e37139c18ce6fc2cb88aec20a340be9_cryptolocker.exe
Size

61KB
MD5

0e37139c18ce6fc2cb88aec20a340be9
SHA1

71c64949bd04f74438125812b6028ca0e6e6894f
SHA256

e6f2ff6e896cd6e0a09df3c01db810f1cfb139cc4d9e87b303b7761017e50b89
SHA512

db45e65cd187194fae0c65041422a9c23ca4a70ebb60e721d5cbe0bbf9335365d4737ee25e4ee13b5041da4ce6d3a7ddbd7678dcaaa39955e357539507410fbf
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMNuSP:TCjsIOtEvwDpj5HE/OUHnSMZw

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1976-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a00000001224d-11.dat	CryptoLocker_rule2
behavioral1/memory/1688-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1976-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1688-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1976-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a00000001224d-11.dat	CryptoLocker_set1
behavioral1/memory/1688-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1976-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1688-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1688	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1976	2024-04-18_0e37139c18ce6fc2cb88aec20a340be9_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 1976 wrote to memory of 1688	1976	2024-04-18_0e37139c18ce6fc2cb88aec20a340be9_cryptolocker.exe	28
PID 1976 wrote to memory of 1688	1976	2024-04-18_0e37139c18ce6fc2cb88aec20a340be9_cryptolocker.exe	28
PID 1976 wrote to memory of 1688	1976	2024-04-18_0e37139c18ce6fc2cb88aec20a340be9_cryptolocker.exe	28
PID 1976 wrote to memory of 1688	1976	2024-04-18_0e37139c18ce6fc2cb88aec20a340be9_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-18_0e37139c18ce6fc2cb88aec20a340be9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-18_0e37139c18ce6fc2cb88aec20a340be9_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1976
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1688

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
61KB

MD5
f89f0e72a76e165adaa3730103d61297

SHA1
e19300a022b2b88ad145e74d7617d4ab1635738c

SHA256
f5fe19aad48d0feb88cc6c81a38df610d48cd93eac5f89bbdbe2599aadc3928c

SHA512
a6749dd85fc3c1a7b464c2e9ceb263013cfee72916924e7863dc2460a4397e049360fec18d66f6d651834efd500b2c78438fcf7ea5a9907e955a8fd3c6729547

Download Submit
memory/1688-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1688-18-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/1688-21-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1688-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1976-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1976-1-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/1976-3-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/1976-2-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/1976-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download