b2ebf22db1da15097164ea4836e985e8edb17f370465b5a827bb539677368e2d

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
15/04/2024, 02:49

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General

Target

2024-04-15_902ec9ee4b062fd9866b6a80968ef201_cryptolocker.exe
Size

46KB
MD5

902ec9ee4b062fd9866b6a80968ef201
SHA1

e3260404a753777fa0410f8fc0a0e75af209324a
SHA256

b2ebf22db1da15097164ea4836e985e8edb17f370465b5a827bb539677368e2d
SHA512

a5f683f8ba5fa81d7ab6faaad628f601ff66d0a293eeb44f8796a0f9904b3a73185dea3df626d119083bbde3cc32bba73bdac5b04d9937fd79ad3baacc0dc1af
SSDEEP

768:P6LsoVEeegiZPvEhHSP+gp/QtOOtEvwDpjBBMLZdzuqpXsiE8Wq/DpkcI:P6Q0ElP6G+gJQMOtEvwDpjB8WMlfI

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1676-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000012256-11.dat	CryptoLocker_rule2
behavioral1/memory/1676-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2016-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2016-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1676-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000012256-11.dat	CryptoLocker_set1
behavioral1/memory/1676-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2016-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2016-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2016	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1676	2024-04-15_902ec9ee4b062fd9866b6a80968ef201_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 1676 wrote to memory of 2016	1676	2024-04-15_902ec9ee4b062fd9866b6a80968ef201_cryptolocker.exe	28
PID 1676 wrote to memory of 2016	1676	2024-04-15_902ec9ee4b062fd9866b6a80968ef201_cryptolocker.exe	28
PID 1676 wrote to memory of 2016	1676	2024-04-15_902ec9ee4b062fd9866b6a80968ef201_cryptolocker.exe	28
PID 1676 wrote to memory of 2016	1676	2024-04-15_902ec9ee4b062fd9866b6a80968ef201_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-15_902ec9ee4b062fd9866b6a80968ef201_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-15_902ec9ee4b062fd9866b6a80968ef201_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1676
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2016

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
46KB

MD5
d2aa5b5ea681df0098c595d33bf80adb

SHA1
01c25b9c86ca50455e88d7b1400d06a308b23f8c

SHA256
ab69b22a577559af4b64f83a91d0bc7282a90b01336e08c19d0639d4957e268d

SHA512
5c88858d38f8db8d3dd658ff19d938ba5d298216b324eb796c9a767aa0c6b3dcc214b9f7c05fc10d05f1502b79ace4744388739ca79dea7c83d03c8422a51d0f

Download Submit
memory/1676-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1676-1-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/1676-2-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/1676-8-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/1676-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2016-18-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2016-20-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2016-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2016-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download