46ce507ff575663f230c2b6b8502bd5d3c79dd53cebafd5c263710e0f0aaba07

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
25-01-2024 14:42

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General

Target

2024-01-25_7d406da2020a1868f2b0eafeeb002ecf_cryptolocker.exe
Size

49KB
MD5

7d406da2020a1868f2b0eafeeb002ecf
SHA1

76db7abf5c64794e72ce62f80a80c9500827e5fd
SHA256

46ce507ff575663f230c2b6b8502bd5d3c79dd53cebafd5c263710e0f0aaba07
SHA512

98a24716fa2d40b254073ac1b158c35256b2de8b09710a2ad8b8510bca0a28bf46ebde051322d64766da588c4c4f08c689ba24e167e3da64ba4566eb0384c50d
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpjeJQ7suIlsw92KFXpQenh/pX:V6QFElP6n+gMQMOtEvwDpjeJQ7pojkmX

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001224a-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001224a-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2868	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1628	2024-01-25_7d406da2020a1868f2b0eafeeb002ecf_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 1628 wrote to memory of 2868	1628	2024-01-25_7d406da2020a1868f2b0eafeeb002ecf_cryptolocker.exe	28
PID 1628 wrote to memory of 2868	1628	2024-01-25_7d406da2020a1868f2b0eafeeb002ecf_cryptolocker.exe	28
PID 1628 wrote to memory of 2868	1628	2024-01-25_7d406da2020a1868f2b0eafeeb002ecf_cryptolocker.exe	28
PID 1628 wrote to memory of 2868	1628	2024-01-25_7d406da2020a1868f2b0eafeeb002ecf_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-25_7d406da2020a1868f2b0eafeeb002ecf_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_7d406da2020a1868f2b0eafeeb002ecf_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1628
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2868

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
50KB

MD5
56d3516fff46f393ac78567783ab64e6

SHA1
3a51c05fd844e0b5131ecf14d0cc7b8f0aa0f653

SHA256
ef52777ab9d98d76d8d39145f3a787432e643a3127505d911d62b1ba036a0491

SHA512
832ac5982d0611fda62537dd1fb04c17645adc82788761b399d508697fa9ead4be85cbea3fc03bfb031cadde09bd3657636786de547f98cdba8e739a9504b5ab

Download Submit
memory/1628-0-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/1628-2-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/1628-1-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2868-15-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2868-17-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download