b0c84102ad40416c74569091050ec2a87b9fdedb7c5131d97ba5878656e5d5f2

Analysis

max time kernel
148s
max time network
156s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
23/01/2024, 19:41

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-01-23_721b2f14bd4175a4f2bb49a8925dbd9f_cryptolocker.exe
Size

62KB
MD5

721b2f14bd4175a4f2bb49a8925dbd9f
SHA1

0e99eccde140359cc313421e4aed3ba2e24468b8
SHA256

b0c84102ad40416c74569091050ec2a87b9fdedb7c5131d97ba5878656e5d5f2
SHA512

fd27b80e865f55625fe6e63b425681f5a2c9732cbb25c9365a8fe2f6f197ca1de963d18c49d6fa58a8641f445732f88e9a92a6e0f83bd488638a54ba4788fc54
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMJ:TCjsIOtEvwDpj5HE/OUHnSMK

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2336-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000012238-11.dat	CryptoLocker_rule2
behavioral1/memory/1892-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2336-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1892-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2336-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000012238-11.dat	CryptoLocker_set1
behavioral1/memory/1892-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2336-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1892-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1892	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2336	2024-01-23_721b2f14bd4175a4f2bb49a8925dbd9f_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 2336 wrote to memory of 1892	2336	2024-01-23_721b2f14bd4175a4f2bb49a8925dbd9f_cryptolocker.exe	28
PID 2336 wrote to memory of 1892	2336	2024-01-23_721b2f14bd4175a4f2bb49a8925dbd9f_cryptolocker.exe	28
PID 2336 wrote to memory of 1892	2336	2024-01-23_721b2f14bd4175a4f2bb49a8925dbd9f_cryptolocker.exe	28
PID 2336 wrote to memory of 1892	2336	2024-01-23_721b2f14bd4175a4f2bb49a8925dbd9f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-23_721b2f14bd4175a4f2bb49a8925dbd9f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-23_721b2f14bd4175a4f2bb49a8925dbd9f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2336
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1892

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

Loading Replay Monitor...

Downloads

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

Filesize
62KB

MD5
923e95a97b2552cf1de32cc7603b9fe6

SHA1
235a2c9f94d632bd5c2f1de29b09a849363eeac5

SHA256
d5262bf0f10177036e20678c53122159d4f077a451059bec422340b0ac2e495e

SHA512
1c6538236b21e321f5ad639ab7e1390275cd7619c2c8b06301ba8f19fbd5a96cb4fe55da65c659429fb3cdd2e8976171f7cbe67cfa7b4da3065383b92de60124

Download Submit
memory/1892-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1892-18-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1892-24-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1892-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2336-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2336-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2336-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2336-5-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2336-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download