be217a543ee33bada0eaa1c490da6ab44ec8119f6225b4f934a3d30bb67aea56

Analysis

max time kernel
137s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
18/04/2024, 08:06

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General

Target

2024-04-18_ec037108d64d64dfe561c9900f421d2d_cryptolocker.exe
Size

40KB
MD5

ec037108d64d64dfe561c9900f421d2d
SHA1

0202642e9bb37f7e843df817f4197da7163c6dfc
SHA256

be217a543ee33bada0eaa1c490da6ab44ec8119f6225b4f934a3d30bb67aea56
SHA512

24e3fbc26b0073e62bf8dd66ce6814837b625c24b3b8913b580953470d3a314beec27529a31aee6e870a970dd8d5e8c59cb503f8d27366127ad7b12ba670d70f
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HKcfr4:X6QFElP6n+gJQMOtEvwDpjBsYK6r4

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000800000001227d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000800000001227d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1628	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2228	2024-04-18_ec037108d64d64dfe561c9900f421d2d_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 2228 wrote to memory of 1628	2228	2024-04-18_ec037108d64d64dfe561c9900f421d2d_cryptolocker.exe	28
PID 2228 wrote to memory of 1628	2228	2024-04-18_ec037108d64d64dfe561c9900f421d2d_cryptolocker.exe	28
PID 2228 wrote to memory of 1628	2228	2024-04-18_ec037108d64d64dfe561c9900f421d2d_cryptolocker.exe	28
PID 2228 wrote to memory of 1628	2228	2024-04-18_ec037108d64d64dfe561c9900f421d2d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-18_ec037108d64d64dfe561c9900f421d2d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-18_ec037108d64d64dfe561c9900f421d2d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2228
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1628

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
40KB

MD5
f40c89da85854cbdada5597230023c1d

SHA1
e7a7c398aecf1fe1abff02094920a6412165cb93

SHA256
7d6e07ec4377ffa89c7b97c6f913bd9ea274b62a5ca87692cfe71ce65a5f66aa

SHA512
2477ac139ceba2a3ff34c934165aeef1452aef8e2390b154e28fc739015f2cb7073ff8721021f4c9b2b41ce48507b4cb9562535befc352f75121c70abc52eac4

Download Submit
memory/1628-15-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/1628-18-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2228-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2228-1-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2228-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download