c8ca9dde197c1877c0c5c73447fd2876fa6b901cb4f32a3fca726d9c5c264e9b

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
18-04-2024 08:06

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General

Target

2024-04-18_eb978976882927beac2320f2167698e0_cryptolocker.exe
Size

83KB
MD5

eb978976882927beac2320f2167698e0
SHA1

903c030fec1acdc6f4eef200c1ccddbff2174bce
SHA256

c8ca9dde197c1877c0c5c73447fd2876fa6b901cb4f32a3fca726d9c5c264e9b
SHA512

ee5b840554ffe1f01b5516bf3427d84c79cce08763501e0a703881f06cd764b1834c24145fa41188c3e3a836d74494f808e971bd1be5496bb7decc52c4cfcb75
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMrCpcF:TCjsIOtEvwDpj5HE/OUHnSM+i

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2180-1-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2684-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000900000001224e-15.dat	CryptoLocker_rule2
behavioral1/memory/2180-14-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2684-25-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2180-1-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2684-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000900000001224e-15.dat	CryptoLocker_set1
behavioral1/memory/2180-14-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2684-25-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2684	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2180	2024-04-18_eb978976882927beac2320f2167698e0_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 2180 wrote to memory of 2684	2180	2024-04-18_eb978976882927beac2320f2167698e0_cryptolocker.exe	28
PID 2180 wrote to memory of 2684	2180	2024-04-18_eb978976882927beac2320f2167698e0_cryptolocker.exe	28
PID 2180 wrote to memory of 2684	2180	2024-04-18_eb978976882927beac2320f2167698e0_cryptolocker.exe	28
PID 2180 wrote to memory of 2684	2180	2024-04-18_eb978976882927beac2320f2167698e0_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-18_eb978976882927beac2320f2167698e0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-18_eb978976882927beac2320f2167698e0_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2684

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
83KB

MD5
4bad338ef00b5c74fccdf020f883ff9e

SHA1
5a1fdbb26ecaad6c039ccc1bd7817757b759e4f2

SHA256
9db9ff32eebc5baa0fc7196750f799ef6afecc387288960bce3252bf0f4d4732

SHA512
96a2a84752f8414aaa26ed8cd7507d3b72c494c7e2aac754377f376bb5447c435b97c7a3fd6997349105d257fde753468e1624bdeeee145aa8a6939c03324a99

Download Submit
memory/2180-1-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2180-0-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2180-2-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2180-3-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2180-14-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2684-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2684-25-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download