93bfdc4c7d1fa4087ba16d2ff0146acc49c5a9ecd1a88df297d92ab0175b7fa6

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
04/05/2024, 19:52

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General

Target

2024-05-04_d3576fd7201e5dcfe704481440491143_cryptolocker.exe
Size

47KB
MD5

d3576fd7201e5dcfe704481440491143
SHA1

45af60514753e6fecbe438bdd713a13338e50f9f
SHA256

93bfdc4c7d1fa4087ba16d2ff0146acc49c5a9ecd1a88df297d92ab0175b7fa6
SHA512

c050dea35da9b42c35da124f6a7a3b9375a9aa1b5be297f4c8da59039e391998f70cd49e43691b76bdb67792e6e9bb67c38eae7427e723ab8b2e19551f6b9f29
SSDEEP

768:79inqyNR/QtOOtEvwDpjBKccJVODvccwDF2f:79mqyNhQMOtEvwDpjBzck1W8f

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2868-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000013143-11.dat	CryptoLocker_rule2
behavioral1/memory/2868-13-0x0000000000670000-0x000000000067F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2868-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2808-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2868-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c000000013143-11.dat	CryptoLocker_set1
behavioral1/memory/2868-13-0x0000000000670000-0x000000000067F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2868-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2808-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2808	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2868	2024-05-04_d3576fd7201e5dcfe704481440491143_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 2868 wrote to memory of 2808	2868	2024-05-04_d3576fd7201e5dcfe704481440491143_cryptolocker.exe	28
PID 2868 wrote to memory of 2808	2868	2024-05-04_d3576fd7201e5dcfe704481440491143_cryptolocker.exe	28
PID 2868 wrote to memory of 2808	2868	2024-05-04_d3576fd7201e5dcfe704481440491143_cryptolocker.exe	28
PID 2868 wrote to memory of 2808	2868	2024-05-04_d3576fd7201e5dcfe704481440491143_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-04_d3576fd7201e5dcfe704481440491143_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-04_d3576fd7201e5dcfe704481440491143_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2868
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2808

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
47KB

MD5
21b3ee79adbe51cbfa311eac8e2cc343

SHA1
1c69f0e55e8585336fc9841c8e617e67dce5d813

SHA256
95920ae25ef79bdbfde3ca511aed1cfabd905d052a88cec8ab424ef218298546

SHA512
9bb8f955f0245d2f2a4eb96547ed4604ea82d76f7a697b520c1e363846bbbe85e129b1ee90735cb5358b4a057eec2aeb65868261af1c3044ba55a965e7aec674

Download Submit
memory/2808-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2808-19-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/2808-26-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2868-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2868-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2868-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2868-2-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2868-13-0x0000000000670000-0x000000000067F000-memory.dmp

Filesize
60KB

Download
memory/2868-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download