23e024dfa6652e9f2a202d064396b8acdc7df00976e327cdd8a01718f7117a47

Analysis

max time kernel
134s
max time network
145s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
19/02/2024, 21:40

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General

Target

2024-02-19_6d2b8fd4139f44541e720af5199889b4_cryptolocker.exe
Size

39KB
MD5

6d2b8fd4139f44541e720af5199889b4
SHA1

fcc54a211ecda2377db18563608ce9b9e72ca850
SHA256

23e024dfa6652e9f2a202d064396b8acdc7df00976e327cdd8a01718f7117a47
SHA512

8c840ac91a0b583820fe79ed46106d6dcf726eec16a41d53caa59648292d0bc77d0d842eb5ad1533630aed968e7bd10676191ac0b2c064c798e5583e3dcf3a21
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HKctxGgS:X6QFElP6n+gJQMOtEvwDpjBsYK9

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012243-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012243-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2072	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1180	2024-02-19_6d2b8fd4139f44541e720af5199889b4_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 1180 wrote to memory of 2072	1180	2024-02-19_6d2b8fd4139f44541e720af5199889b4_cryptolocker.exe	28
PID 1180 wrote to memory of 2072	1180	2024-02-19_6d2b8fd4139f44541e720af5199889b4_cryptolocker.exe	28
PID 1180 wrote to memory of 2072	1180	2024-02-19_6d2b8fd4139f44541e720af5199889b4_cryptolocker.exe	28
PID 1180 wrote to memory of 2072	1180	2024-02-19_6d2b8fd4139f44541e720af5199889b4_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-19_6d2b8fd4139f44541e720af5199889b4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_6d2b8fd4139f44541e720af5199889b4_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1180
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2072

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
39KB

MD5
d1999ca16716ad3e2e05d898caaa4aef

SHA1
bf712ae0910e5ca66ccf85a4ecca66abd21b7473

SHA256
6e457356a0d9401b7b90f168abcd37b0a51a464ebb05d46019c389eca75a6861

SHA512
ce4bbf668a0f27bd28de9ae56b29369e901decf94dd4917eda0ee9992e42dc2ca1cb59a1d8dff24a4dc28ef797099c6b814975b310a15db8c11c9b30d3904457

Download Submit
memory/1180-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1180-1-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1180-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2072-16-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2072-15-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download