15ebdc4334950ada60c4daec478b082d974a209ff9a19512d8e0c59654bdd46c

Analysis

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

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
30/04/2024, 22:31

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General

Target

2024-04-30_7e570e863c801a62934fdb390665b0ac_cryptolocker.exe
Size

47KB
MD5

7e570e863c801a62934fdb390665b0ac
SHA1

7447a6925748b321dcbbcd576fc9c40f2c2ac2fd
SHA256

15ebdc4334950ada60c4daec478b082d974a209ff9a19512d8e0c59654bdd46c
SHA512

f805116916a21527030b0cb6a3f7019849d54c8b9de9474dfea5c20c6fee93ec3cf5c1392c21b43a5b4990e9017fbc48bd01b9594a67933e2208e1a02edc79f7
SSDEEP

768:P6LsoVEeegiZPvEhHSP+gp/QtOOtEvwDpjBBMLZdzuqpXsiE8Wq/Dpkcb:P6Q0ElP6G+gJQMOtEvwDpjB8WMlfb

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2196-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000014454-11.dat	CryptoLocker_rule2
behavioral1/memory/2196-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2536-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2536-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2196-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000014454-11.dat	CryptoLocker_set1
behavioral1/memory/2196-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2536-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2536-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2536	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2196	2024-04-30_7e570e863c801a62934fdb390665b0ac_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 2196 wrote to memory of 2536	2196	2024-04-30_7e570e863c801a62934fdb390665b0ac_cryptolocker.exe	28
PID 2196 wrote to memory of 2536	2196	2024-04-30_7e570e863c801a62934fdb390665b0ac_cryptolocker.exe	28
PID 2196 wrote to memory of 2536	2196	2024-04-30_7e570e863c801a62934fdb390665b0ac_cryptolocker.exe	28
PID 2196 wrote to memory of 2536	2196	2024-04-30_7e570e863c801a62934fdb390665b0ac_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-30_7e570e863c801a62934fdb390665b0ac_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_7e570e863c801a62934fdb390665b0ac_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2536

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
48KB

MD5
07d77b2a1379daaeb68b64fa73636de5

SHA1
ac5ccb30507fd7b128aee2de67431c875865c55f

SHA256
4fe0b003f04dd66e9288a1b45c37401e7db35c2f0ec7e1727a1560ac274234bc

SHA512
32576a9a4c9494ee34a96c33a277bca13c84a03ef7812582822a0a1f3982dc7d0ab82690e8dab83350d91b3527901bee9f9fede5172e5d3a091f38e5e97f9476

Download Submit
memory/2196-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2196-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2196-2-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2196-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2196-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2536-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2536-18-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2536-25-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2536-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download