48901033fb9f0b3efefc666c62fdecb26850188f73ae856665bf7219f55df1a1

Analysis

max time kernel
150s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
24-01-2024 01:57

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General

Target

2024-01-24_f1cc097bdde29d43313b4fc181a9e7e1_cryptolocker.exe
Size

88KB
MD5

f1cc097bdde29d43313b4fc181a9e7e1
SHA1

e0b3e7f31da360db78e905d9edad53183eaedeb5
SHA256

48901033fb9f0b3efefc666c62fdecb26850188f73ae856665bf7219f55df1a1
SHA512

01d2c5d369771d903f53eaa99dcb807c8cd4664c5fd92985852fb20d7f1cbb64983e0fbccbc32e7b14fbbf863a3b17cd169c6de046082bd1d5c9896c9f67d9b6
SSDEEP

1536:vj+jsMQMOtEvwDpj5H8u8rBN6nqEZNi1OkQN8:vCjsIOtEvwDpj5H8zPs4

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012243-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012243-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2732	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1968	2024-01-24_f1cc097bdde29d43313b4fc181a9e7e1_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 1968 wrote to memory of 2732	1968	2024-01-24_f1cc097bdde29d43313b4fc181a9e7e1_cryptolocker.exe	28
PID 1968 wrote to memory of 2732	1968	2024-01-24_f1cc097bdde29d43313b4fc181a9e7e1_cryptolocker.exe	28
PID 1968 wrote to memory of 2732	1968	2024-01-24_f1cc097bdde29d43313b4fc181a9e7e1_cryptolocker.exe	28
PID 1968 wrote to memory of 2732	1968	2024-01-24_f1cc097bdde29d43313b4fc181a9e7e1_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-24_f1cc097bdde29d43313b4fc181a9e7e1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-24_f1cc097bdde29d43313b4fc181a9e7e1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2732

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
88KB

MD5
119996a8cdfb27c945cb69a38028b1d6

SHA1
1c42f4972927842d7489d0628cb95f6780e5b760

SHA256
cef7a6859d608967c01d9e387a20972cc70fbbf1d8f8ffc43b6fadccd06be7bb

SHA512
42910628f4b87a28fe8888b36d0c635126eb2f73ed793f80b43da637d51d806ab07f34353048fad963659af4b3e8ac682f1374b993778eda8b115922888a0633

Download Submit
memory/1968-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1968-2-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/1968-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2732-15-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download