636fb44de8ce4e727771858748d3240a3ea6dbbc12422a945234637548cb4543

Analysis

max time kernel
150s
max time network
156s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
23/08/2023, 16:11

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General

Target

77469c681035f60e37deb2c99456a8f4_cryptolocker_JC.exe
Size

54KB
MD5

77469c681035f60e37deb2c99456a8f4
SHA1

7235ad8e729b750013b94b419a2b518065276eef
SHA256

636fb44de8ce4e727771858748d3240a3ea6dbbc12422a945234637548cb4543
SHA512

350f6bdb479a56ab6502600bc11edaaf0267bdd6fbed842c505fd6ebf87b838ded89a2f9a52f325f23efb7974677ff20ef6778d230de0432591cab35659730c9
SSDEEP

768:zQz7yVEhs9+syJP6ntOOtEvwDpjFeV0ZOfcpea:zj+soPSMOtEvwDpj4yya

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2604	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2304	77469c681035f60e37deb2c99456a8f4_cryptolocker_JC.exe

UPX packed file 8 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2304-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000a000000012029-11.dat	upx
behavioral1/memory/2304-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2604-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000a000000012029-16.dat	upx
behavioral1/memory/2304-13-0x00000000026C0000-0x00000000026D0000-memory.dmp	upx
behavioral1/files/0x000a000000012029-26.dat	upx
behavioral1/memory/2604-28-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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 2304 wrote to memory of 2604	2304	77469c681035f60e37deb2c99456a8f4_cryptolocker_JC.exe	28
PID 2304 wrote to memory of 2604	2304	77469c681035f60e37deb2c99456a8f4_cryptolocker_JC.exe	28
PID 2304 wrote to memory of 2604	2304	77469c681035f60e37deb2c99456a8f4_cryptolocker_JC.exe	28
PID 2304 wrote to memory of 2604	2304	77469c681035f60e37deb2c99456a8f4_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\77469c681035f60e37deb2c99456a8f4_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\77469c681035f60e37deb2c99456a8f4_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2304
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2604

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
54KB

MD5
9d137dfdb188b338950ea3ac50219b6f

SHA1
2e4846c7fdd865793bd4d828c38ad70f497ee62e

SHA256
7e2c16d1d99abb59259edd67570154f02782450f2795c73e36f0f9fede7fb450

SHA512
c411116c8c05e1efc6bcbaec1de07c3192eaf8867a6f91b99d61a478607270f85dfe283ee9d8ae9bc05c54238a24c8cce192345286e916e8e429baf7124828a6

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

Filesize
54KB

MD5
9d137dfdb188b338950ea3ac50219b6f

SHA1
2e4846c7fdd865793bd4d828c38ad70f497ee62e

SHA256
7e2c16d1d99abb59259edd67570154f02782450f2795c73e36f0f9fede7fb450

SHA512
c411116c8c05e1efc6bcbaec1de07c3192eaf8867a6f91b99d61a478607270f85dfe283ee9d8ae9bc05c54238a24c8cce192345286e916e8e429baf7124828a6

Download Submit
\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
54KB

MD5
9d137dfdb188b338950ea3ac50219b6f

SHA1
2e4846c7fdd865793bd4d828c38ad70f497ee62e

SHA256
7e2c16d1d99abb59259edd67570154f02782450f2795c73e36f0f9fede7fb450

SHA512
c411116c8c05e1efc6bcbaec1de07c3192eaf8867a6f91b99d61a478607270f85dfe283ee9d8ae9bc05c54238a24c8cce192345286e916e8e429baf7124828a6

Download Submit
memory/2304-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2304-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2304-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2304-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2304-13-0x00000000026C0000-0x00000000026D0000-memory.dmp

Filesize
64KB

Download
memory/2304-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2304-27-0x00000000026C0000-0x00000000026D0000-memory.dmp

Filesize
64KB

Download
memory/2604-20-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2604-19-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2604-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2604-28-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download