7f3fb73cc7c78bd7c654c173b31f99fef1e2c41fde0204a5bd8a327f215d4606

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09/03/2024, 03:42 UTC

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General

Target

2024-03-09_e5346d09b3c0653cfc46fac9fdcd29a2_cryptolocker.exe
Size

41KB
MD5

e5346d09b3c0653cfc46fac9fdcd29a2
SHA1

81fa4d54978693a43f37dbbaceb50098f6551e90
SHA256

7f3fb73cc7c78bd7c654c173b31f99fef1e2c41fde0204a5bd8a327f215d4606
SHA512

400cf39fa2f0d31bb4791a287f9dd4932cf675e253fe454676a53e12b27c686b5686809c373acd63f2a742d2eb90d0dd3276281e1f4b1fe890884a9cd1317ebf
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDDw3sCu529hyr:bgGYcA/53GADw8Ch9s

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001224c-13.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2340	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2200	2024-03-09_e5346d09b3c0653cfc46fac9fdcd29a2_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 2200 wrote to memory of 2340	2200	2024-03-09_e5346d09b3c0653cfc46fac9fdcd29a2_cryptolocker.exe	30
PID 2200 wrote to memory of 2340	2200	2024-03-09_e5346d09b3c0653cfc46fac9fdcd29a2_cryptolocker.exe	30
PID 2200 wrote to memory of 2340	2200	2024-03-09_e5346d09b3c0653cfc46fac9fdcd29a2_cryptolocker.exe	30
PID 2200 wrote to memory of 2340	2200	2024-03-09_e5346d09b3c0653cfc46fac9fdcd29a2_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-03-09_e5346d09b3c0653cfc46fac9fdcd29a2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-09_e5346d09b3c0653cfc46fac9fdcd29a2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2200
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2340

Network

DNS

mytarta.com

hasfj.exe

Remote address:

8.8.8.8:53

Request

mytarta.com

IN A

Response

No results found

8.8.8.8:53

mytarta.com

dns

hasfj.exe

57 B
107 B
1
1

DNS Request

mytarta.com

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

C:\Users\Admin\AppData\Local\Temp\hasfj.exe

Filesize
41KB

MD5
5056e0be92e17bded1c258326a80424f

SHA1
f8c199e1344618546bd5f7a46aef05693944826f

SHA256
1554e09df3503787fa08a9f07e0010b82e3bf41153326432dc29cabeb571b633

SHA512
86bfe71eda806191f67a4d1c5f691337b26bffd8e5327920730fed627c96bf48ff5a64213fdc62288ae68613685f0ffa3fb7672be15e23a87eff54fd4f3b5add

Download Submit
memory/2200-0-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2200-2-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2200-1-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/2340-15-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2340-22-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download