5bbb884ef26653d3a15594c85cdf9b0155a057412d02e3b6577cdcfebbe0d296

Analysis

max time kernel
132s
max time network
144s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
04/02/2024, 15:31

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General

Target

2024-02-04_822561c118de27720e8fb6e1d3930274_cryptolocker.exe
Size

54KB
MD5

822561c118de27720e8fb6e1d3930274
SHA1

80cc7040e407982015a18d87a33993a809974a7a
SHA256

5bbb884ef26653d3a15594c85cdf9b0155a057412d02e3b6577cdcfebbe0d296
SHA512

8bba226f134e5a2c4af6ec8aa1f321de9141b6b75b06354f6a3cfe9d6347415f8443c9ec6407b898863aa67734c6a2b2951042a3f8063d4639948569afac1177
SSDEEP

768:79inqyNR/QtOOtEvwDpjBK/iVTab3GRuv3VylSV/CdQ:79mqyNhQMOtEvwDpjBPY7xv3g8V

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2416-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000012256-11.dat	CryptoLocker_rule2
behavioral1/memory/2416-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2744-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2416-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c000000012256-11.dat	CryptoLocker_set1
behavioral1/memory/2416-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2744-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2744	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2416	2024-02-04_822561c118de27720e8fb6e1d3930274_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 2416 wrote to memory of 2744	2416	2024-02-04_822561c118de27720e8fb6e1d3930274_cryptolocker.exe	28
PID 2416 wrote to memory of 2744	2416	2024-02-04_822561c118de27720e8fb6e1d3930274_cryptolocker.exe	28
PID 2416 wrote to memory of 2744	2416	2024-02-04_822561c118de27720e8fb6e1d3930274_cryptolocker.exe	28
PID 2416 wrote to memory of 2744	2416	2024-02-04_822561c118de27720e8fb6e1d3930274_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-04_822561c118de27720e8fb6e1d3930274_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-04_822561c118de27720e8fb6e1d3930274_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2416
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2744

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\asih.exe

Filesize
54KB

MD5
511dc9fdb55a0746f3af079516239626

SHA1
5942be365acbbd9cf10c3675f760636d66c432f2

SHA256
da25dd94734fd953279f5ac4273ce7ffb810c0160de8693871456299518bba12

SHA512
f3638b542a70678d2f0d2d47466250cc3914192387287c9e23416dc996f7085c49c55bf32934d7e84bb6082a355f4fdb083545da4347f15b33546a9b8ed08e03

Download Submit
memory/2416-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2416-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2416-2-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2416-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2416-14-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2744-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2744-18-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2744-22-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download