74c3ce4746fd10a7951dcdd10f8a8922566653bc936dffaedc53b84b9ec15d97

Analysis

max time kernel
150s
max time network
144s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18/01/2024, 22:56

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General

Target

2024-01-18_7632cef317d33f9cc20c82279ca43acb_cryptolocker.exe
Size

67KB
MD5

7632cef317d33f9cc20c82279ca43acb
SHA1

96da537093904ad54f1807ae8fac62951f8bdd34
SHA256

74c3ce4746fd10a7951dcdd10f8a8922566653bc936dffaedc53b84b9ec15d97
SHA512

7aa29122b120f144f1c9cf97e1bce919db0089233e50851881604f11ad4466af9b9257f010438ccf1af91ee6bc601dd0c9152e5619767c24310151e686da385d
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKU4:DW60sllyWOtEvwDpjwF85S

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2668-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0007000000012281-11.dat	CryptoLocker_rule2
behavioral1/memory/2668-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2732-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2668-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0007000000012281-11.dat	CryptoLocker_set1
behavioral1/memory/2668-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2732-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2732	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2668	2024-01-18_7632cef317d33f9cc20c82279ca43acb_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 2668 wrote to memory of 2732	2668	2024-01-18_7632cef317d33f9cc20c82279ca43acb_cryptolocker.exe	28
PID 2668 wrote to memory of 2732	2668	2024-01-18_7632cef317d33f9cc20c82279ca43acb_cryptolocker.exe	28
PID 2668 wrote to memory of 2732	2668	2024-01-18_7632cef317d33f9cc20c82279ca43acb_cryptolocker.exe	28
PID 2668 wrote to memory of 2732	2668	2024-01-18_7632cef317d33f9cc20c82279ca43acb_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-18_7632cef317d33f9cc20c82279ca43acb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-18_7632cef317d33f9cc20c82279ca43acb_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2732

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
67KB

MD5
6285e16faf5048fe53aca01671e58e41

SHA1
ed7469d9c2e99a764a7b6afc1488829d8e0e1b68

SHA256
c144ec4105ff2e26824d30e48f4d72e4acc84010f009820d72a9557cf321cab2

SHA512
c6d4acb723972143620518fa35b61d0b245de91157fbacd06f7987d73d0d109a1b8d0f53093f165d3121adb6e8327e7a0b6f1eb31204f60bcedad2effb676bbe

Download Submit
memory/2668-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2668-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2668-2-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/2668-3-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2668-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2732-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2732-19-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2732-18-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download