f628af64085fdd5ba7f4bd9858c2c80b87af4adf15e0cb2ccfd00c8f68d2909a

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18/02/2024, 11:28

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General

Target

2024-02-18_16241f19bb745767bbce5a577b72e721_cryptolocker.exe
Size

51KB
MD5

16241f19bb745767bbce5a577b72e721
SHA1

bf6d2f79b0c136b303b71c45d217ec379373d9a1
SHA256

f628af64085fdd5ba7f4bd9858c2c80b87af4adf15e0cb2ccfd00c8f68d2909a
SHA512

a9348ec4b85cec56dee7af76e5906c2ec8d8a851f89985af68d441f2ea610fb9c7400673b57e0ec5c208324311a076ca12ef5c11519ce74f14cde201d2e645a0
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpjeJQ7suIlsw92KFXpQenhu2O:V6QFElP6n+gMQMOtEvwDpjeJQ7pojkRB

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000015d70-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000015d70-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2088	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2372	2024-02-18_16241f19bb745767bbce5a577b72e721_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 2372 wrote to memory of 2088	2372	2024-02-18_16241f19bb745767bbce5a577b72e721_cryptolocker.exe	28
PID 2372 wrote to memory of 2088	2372	2024-02-18_16241f19bb745767bbce5a577b72e721_cryptolocker.exe	28
PID 2372 wrote to memory of 2088	2372	2024-02-18_16241f19bb745767bbce5a577b72e721_cryptolocker.exe	28
PID 2372 wrote to memory of 2088	2372	2024-02-18_16241f19bb745767bbce5a577b72e721_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-18_16241f19bb745767bbce5a577b72e721_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_16241f19bb745767bbce5a577b72e721_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2088

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
3e26b138b0fcdc6b6d81ce991d870be9

SHA1
784ffc9267bca4fa56a66999123b1e7bc2715bdd

SHA256
0bd42d4825805ed708ce25acbcc33c3e4c93bb3f2e28116be93a9784d4c05426

SHA512
510fc99c8583a161eff563e6f6d256ddf34ad6b904a0adf71862f8149b785b6f8fd8a8a34ebd90f847dbafdee308ab11a19187a81fb448274ab0258621769a71

Download Submit
memory/2088-15-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2088-22-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2372-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2372-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2372-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download