bb6999c96056a0379cf044b654e20e379b6780dd48c454e4c73028d76af6958c

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25/01/2024, 06:29

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General

Target

2024-01-25_630a29770500cc89e621c2f16d093107_cryptolocker.exe
Size

59KB
MD5

630a29770500cc89e621c2f16d093107
SHA1

465ccafb72cd7dfa15124e0465f05c1af3970a1f
SHA256

bb6999c96056a0379cf044b654e20e379b6780dd48c454e4c73028d76af6958c
SHA512

e3c2aa1b2f2bc1751a06471d1f0566279875337bb79a28ab926a5a8e351834460d7a4872f1cbe0895a31b85cd612d0cb9c47bbacc6160b0ea78661454c9ac367
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMA:TCjsIOtEvwDpj5HE/OUHnSMP

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2360-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000012238-11.dat	CryptoLocker_rule2
behavioral1/memory/2360-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2840-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2840-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2360-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000012238-11.dat	CryptoLocker_set1
behavioral1/memory/2360-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2840-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2840-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2840	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2360	2024-01-25_630a29770500cc89e621c2f16d093107_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 2360 wrote to memory of 2840	2360	2024-01-25_630a29770500cc89e621c2f16d093107_cryptolocker.exe	28
PID 2360 wrote to memory of 2840	2360	2024-01-25_630a29770500cc89e621c2f16d093107_cryptolocker.exe	28
PID 2360 wrote to memory of 2840	2360	2024-01-25_630a29770500cc89e621c2f16d093107_cryptolocker.exe	28
PID 2360 wrote to memory of 2840	2360	2024-01-25_630a29770500cc89e621c2f16d093107_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-25_630a29770500cc89e621c2f16d093107_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_630a29770500cc89e621c2f16d093107_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2360
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2840

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
59KB

MD5
e65711d56ea21e7ce7638bc463bfda6f

SHA1
6c6819b00162f9ea610afcc4f7d13af96e8ca39b

SHA256
a38a51027da95dbb590909ae18b6c75ad0f76b564b710402296f580d0b470596

SHA512
0333d8a03c2dcefc697302acd37bae06849fc6aa1dd725f41ee3fa6dfdad6989f2cb80a1c1cdd373adb8c07a245de656518da5231b6de8c7ace8ae41db5e6b31

Download Submit
memory/2360-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2360-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2360-3-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2360-2-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2360-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2840-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2840-18-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2840-20-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2840-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download