2e9bba8319f8880f3e7d56278ed821537bf1b87831c4e0c058496aae23c143dc

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23-02-2024 09:37

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General

Target

2024-02-23_4fe765a8d2b07896dc4ca686b8506991_cryptolocker.exe
Size

71KB
MD5

4fe765a8d2b07896dc4ca686b8506991
SHA1

81cb7bc3a467af5e8e4be115604b1bfff1280d81
SHA256

2e9bba8319f8880f3e7d56278ed821537bf1b87831c4e0c058496aae23c143dc
SHA512

9046568868d5b8a5f4519a3f77bbc72fd06fafea6a2ed702dc09ee2b0fde3585c29b63f1753a3876822d951ac8e4cbdf9c9f864d126b3941132c8e41f57b2c4b
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1eSo:X6a+SOtEvwDpjBZYvQd2+

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224e-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224e-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2784	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1692	2024-02-23_4fe765a8d2b07896dc4ca686b8506991_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 1692 wrote to memory of 2784	1692	2024-02-23_4fe765a8d2b07896dc4ca686b8506991_cryptolocker.exe	28
PID 1692 wrote to memory of 2784	1692	2024-02-23_4fe765a8d2b07896dc4ca686b8506991_cryptolocker.exe	28
PID 1692 wrote to memory of 2784	1692	2024-02-23_4fe765a8d2b07896dc4ca686b8506991_cryptolocker.exe	28
PID 1692 wrote to memory of 2784	1692	2024-02-23_4fe765a8d2b07896dc4ca686b8506991_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-23_4fe765a8d2b07896dc4ca686b8506991_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_4fe765a8d2b07896dc4ca686b8506991_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1692
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2784

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
72KB

MD5
23675a5c90eaa66aec97b48078917e02

SHA1
63ad16fbfe268197988470e629b0e8ac3ad1b61e

SHA256
fdac77fb480a871d68c0039e73564097c019ada067e03e8cdd326faf821d4a14

SHA512
30cead4443662d7db61e75dcf44d950133eddbace1dc948e9925de2562e274c8096445a340e5e447f286a9435f2301c790912dd3c1acf93ee077e2cba1d03819

Download Submit
memory/1692-0-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/1692-2-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/1692-1-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2784-15-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download