5e7d4947b014b848ef14188c93429f68e3b51211f34e82c344f9e28ef204b364

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
14-02-2024 12:54

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General

Target

2024-02-14_7d3f94f7c160b259ba2aafa6616de216_cryptolocker.exe
Size

51KB
MD5

7d3f94f7c160b259ba2aafa6616de216
SHA1

6d5675ae482e949376e015df6eb17bea519aa9c1
SHA256

5e7d4947b014b848ef14188c93429f68e3b51211f34e82c344f9e28ef204b364
SHA512

3e4164942b9eaa7ba08a2c21c2863038eb2169df3cc78bf30743260bdeb1d4a3b8c2e3ad2acf6c2e02fce927b3ca4325e4c007f82c8b17fc53996f57cc246b59
SSDEEP

768:79inqyNR/QtOOtEvwDpjBK/rJ+Nw8qn8pKIRH:79mqyNhQMOtEvwDpjBxe8TpXRH

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2820-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a000000013a21-11.dat	CryptoLocker_rule2
behavioral1/memory/2820-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1528-20-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2820-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a000000013a21-11.dat	CryptoLocker_set1
behavioral1/memory/2820-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1528-20-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1528	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2820	2024-02-14_7d3f94f7c160b259ba2aafa6616de216_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 2820 wrote to memory of 1528	2820	2024-02-14_7d3f94f7c160b259ba2aafa6616de216_cryptolocker.exe	28
PID 2820 wrote to memory of 1528	2820	2024-02-14_7d3f94f7c160b259ba2aafa6616de216_cryptolocker.exe	28
PID 2820 wrote to memory of 1528	2820	2024-02-14_7d3f94f7c160b259ba2aafa6616de216_cryptolocker.exe	28
PID 2820 wrote to memory of 1528	2820	2024-02-14_7d3f94f7c160b259ba2aafa6616de216_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-14_7d3f94f7c160b259ba2aafa6616de216_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_7d3f94f7c160b259ba2aafa6616de216_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2820
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1528

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
51KB

MD5
411f8efa892712716bd98a556d7a2eb8

SHA1
41048ed32e574dbe4732cb6665ff2eae26e0c1a2

SHA256
16c1e04b0bf5ee8fa1367a560197390b05f1a8ef4ad8693c9e497bde64b6ad7d

SHA512
56aaa2ec9d0cfb0e7b2c4911f294142d96b1dd6e2dd18186c4a3349069ae09d697d1a0a8aa6918ef3cee83352e5303b68c9f455577de6e9d643659c91d5f212f

Download Submit
memory/1528-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1528-20-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1528-17-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2820-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2820-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2820-2-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/2820-3-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2820-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download