d4cdc40b2a05742d47656c00d1fd2262975e0c386dc12be41e05ef68be06441e

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
05-05-2024 04:29

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General

Target

2024-05-05_473d226775fa929f38a4730db2579168_cryptolocker.exe
Size

47KB
MD5

473d226775fa929f38a4730db2579168
SHA1

bd5b82c47c27431bca5cc075615301dbca5b43b7
SHA256

d4cdc40b2a05742d47656c00d1fd2262975e0c386dc12be41e05ef68be06441e
SHA512

f7f39b0639c5d84b6630a9222a2e7766b95206ae549b25a59521198318be6c432ce8482a66722aa5b915973b92f7eae81b39e4c54960db6b07ad7f9e0569c782
SSDEEP

768:P6LsoVEeegiZPvEhHSP+gp/QtOOtEvwDpjBBMLZdzuqpXsiE8Wq/DpkcD:P6Q0ElP6G+gJQMOtEvwDpjB8WMlfD

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2836-8-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000015c4c-11.dat	CryptoLocker_rule2
behavioral1/memory/2420-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2420-24-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2836-8-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c000000015c4c-11.dat	CryptoLocker_set1
behavioral1/memory/2420-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2420-24-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2420	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2836	2024-05-05_473d226775fa929f38a4730db2579168_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 2836 wrote to memory of 2420	2836	2024-05-05_473d226775fa929f38a4730db2579168_cryptolocker.exe	28
PID 2836 wrote to memory of 2420	2836	2024-05-05_473d226775fa929f38a4730db2579168_cryptolocker.exe	28
PID 2836 wrote to memory of 2420	2836	2024-05-05_473d226775fa929f38a4730db2579168_cryptolocker.exe	28
PID 2836 wrote to memory of 2420	2836	2024-05-05_473d226775fa929f38a4730db2579168_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-05_473d226775fa929f38a4730db2579168_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-05_473d226775fa929f38a4730db2579168_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2836
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2420

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\asih.exe

Filesize
47KB

MD5
52afb21910f37ee7cb88dd6ffb54e31a

SHA1
9e5d3696adbc64ef0f3775e96882d12d0a9c8cd7

SHA256
6c88f668103d9c2e29927d22321aba434364479b41afe18043a5497e0e30844a

SHA512
eb00bc68f2e538e8d7534b709c857bb6b4fc50028c681a105fe0fa00bcb8c6c1f30871bb457c925031c1ce904e730f75909433e2ea8149731b3023f428d49ca8

Download Submit
memory/2420-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2420-17-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2420-24-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2836-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2836-1-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2836-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2836-8-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download