4b514113528d9efa15b3aef7f097239c2b60ee7c86adcf67a91f45417f3cc0e0

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
11/02/2024, 16:21

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General

Target

2024-02-11_47705326fbfc6d973b896b7c5e00f270_cryptolocker.exe
Size

44KB
MD5

47705326fbfc6d973b896b7c5e00f270
SHA1

697519fa7b704f874e06ddca2fbd7a487813a986
SHA256

4b514113528d9efa15b3aef7f097239c2b60ee7c86adcf67a91f45417f3cc0e0
SHA512

78820248a61a946d25e02c150510132782eafddd35553c4495c38bf63470aad3e1ef5aae958805b647b03698ad4d7fe28d59513dd60997d754e86e790d810cee
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6j4AYsqSh+DETkedm+Mt1:YGzl5wjRQBBOsP1QMOtEvwDpjl39+D+m

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2748-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2748-14-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2844-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a000000012248-15.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2748-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2748-14-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2844-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a000000012248-15.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2844	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2748	2024-02-11_47705326fbfc6d973b896b7c5e00f270_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 2748 wrote to memory of 2844	2748	2024-02-11_47705326fbfc6d973b896b7c5e00f270_cryptolocker.exe	28
PID 2748 wrote to memory of 2844	2748	2024-02-11_47705326fbfc6d973b896b7c5e00f270_cryptolocker.exe	28
PID 2748 wrote to memory of 2844	2748	2024-02-11_47705326fbfc6d973b896b7c5e00f270_cryptolocker.exe	28
PID 2748 wrote to memory of 2844	2748	2024-02-11_47705326fbfc6d973b896b7c5e00f270_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-11_47705326fbfc6d973b896b7c5e00f270_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-11_47705326fbfc6d973b896b7c5e00f270_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2748
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2844

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\asih.exe

Filesize
44KB

MD5
dd426ff58bfdec0edeeacf2638954819

SHA1
e970452590ffeff5e438e8b89188d55ec8f61701

SHA256
88063898cf22e8d2c7dc594cca80ee0cf9e1639428dc21eb0243b1a300692f42

SHA512
472a93d5f9d766281feb61f021cdfa764e3eb7d92400a0af965672487bab72974451ce411ff65ee80127cb2102051c618fd0dfa9d0ae1e52290d2cf8abe1ead1

Download Submit
memory/2748-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2748-1-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2748-3-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2748-2-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2748-14-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2844-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2844-18-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/2844-20-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download