f8470599a8954ae9f4c6b57216a54684717fb75976e337c7e09184149aabda48

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
09/05/2024, 20:24

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General

Target

2024-05-09_3e8595398981d26624de50765fe40928_cryptolocker.exe
Size

31KB
MD5

3e8595398981d26624de50765fe40928
SHA1

be14c15906804a6e8ef58f126799cb6aef04e6f7
SHA256

f8470599a8954ae9f4c6b57216a54684717fb75976e337c7e09184149aabda48
SHA512

fb0add0bb9669e04ac3500718720fa0c7f749af81a182531801ba9ed243b2eb4fec8b1de571c07383992dcc9ad4355cea175f7ed1210af4ac7ae3e2be0a0db23
SSDEEP

384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGOT:bG74zYcgT/Ekd0ryfjp

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2192-0-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000014e5a-11.dat	CryptoLocker_rule2
behavioral1/memory/2192-15-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2000-17-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2000-26-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2000	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2192	2024-05-09_3e8595398981d26624de50765fe40928_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 2192 wrote to memory of 2000	2192	2024-05-09_3e8595398981d26624de50765fe40928_cryptolocker.exe	28
PID 2192 wrote to memory of 2000	2192	2024-05-09_3e8595398981d26624de50765fe40928_cryptolocker.exe	28
PID 2192 wrote to memory of 2000	2192	2024-05-09_3e8595398981d26624de50765fe40928_cryptolocker.exe	28
PID 2192 wrote to memory of 2000	2192	2024-05-09_3e8595398981d26624de50765fe40928_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-09_3e8595398981d26624de50765fe40928_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-09_3e8595398981d26624de50765fe40928_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2192
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2000

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\hasfj.exe

Filesize
32KB

MD5
602568f58d3c323fe6d8120f9a8c4a7f

SHA1
d65d9964757eec910157b062c0e673f97a88737e

SHA256
dbf4e3d542ceaf74366389dcb8cefe4daac567365e3fa0aaca99fdabf28fe1c8

SHA512
8938354552c8311338f5029174dcbbbcdd27c547eaa8e654bf22655fc0d1f7cb472b7dab2fffcca16673ca5e050223382fb184d4004058b85f5ff319c4530a49

Download Submit
memory/2000-17-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2000-18-0x0000000001CB0000-0x0000000001CB6000-memory.dmp

Filesize
24KB

Download
memory/2000-25-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/2000-26-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2192-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2192-1-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/2192-2-0x0000000001CF0000-0x0000000001CF6000-memory.dmp

Filesize
24KB

Download
memory/2192-9-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/2192-15-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download