e2063fbf34d55c35a3db325bfec9d6233bccf2cccddea3a0547c1b8882c99e85

Analysis

max time kernel
149s
max time network
143s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23-04-2024 05:23

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General

Target

2024-04-23_00c6d44d554472bbd1185c0921654f8d_cryptolocker.exe
Size

70KB
MD5

00c6d44d554472bbd1185c0921654f8d
SHA1

156fb39c66a2dd04c319328ef806a66f7759f4c0
SHA256

e2063fbf34d55c35a3db325bfec9d6233bccf2cccddea3a0547c1b8882c99e85
SHA512

42ada2c4b6c71a332da9fc560a61c3b3b17808f6208480a1a0a79de0285663b2f640f9f7e3d326c16cde77d7ca524c600e9b3ead58fdca3b1bd1205903f40cf2
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUsj:DW60sllyWOtEvwDpjwF85C

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/1548-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d000000014466-11.dat	CryptoLocker_rule2
behavioral1/memory/1548-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2564-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/1548-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000d000000014466-11.dat	CryptoLocker_set1
behavioral1/memory/1548-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2564-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2564	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1548	2024-04-23_00c6d44d554472bbd1185c0921654f8d_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 1548 wrote to memory of 2564	1548	2024-04-23_00c6d44d554472bbd1185c0921654f8d_cryptolocker.exe	28
PID 1548 wrote to memory of 2564	1548	2024-04-23_00c6d44d554472bbd1185c0921654f8d_cryptolocker.exe	28
PID 1548 wrote to memory of 2564	1548	2024-04-23_00c6d44d554472bbd1185c0921654f8d_cryptolocker.exe	28
PID 1548 wrote to memory of 2564	1548	2024-04-23_00c6d44d554472bbd1185c0921654f8d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-23_00c6d44d554472bbd1185c0921654f8d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-23_00c6d44d554472bbd1185c0921654f8d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1548
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2564

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
70KB

MD5
df0fb4f7b76cf22e6775b1cf628b2dcd

SHA1
a5c823a1c2b61168a76899c23efb442504762911

SHA256
930a9b4f3f379386628e326acd01ab53d42a41f4cccd827b55177f24b0012050

SHA512
6ac6ba0cc4f6fa4c1e45f2b7b473085fd95e86105be73677db919249469b6c11d3b3ae9629c3b889b5e854185e5662f6de0be1353f5d2d5697978221815a2aa2

Download Submit
memory/1548-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1548-1-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/1548-2-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/1548-3-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1548-13-0x0000000002480000-0x000000000248B000-memory.dmp

Filesize
44KB

Download
memory/1548-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2564-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2564-19-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2564-21-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download