fa8daac68b8c8bda0d82e025f023516e33e67fcef43ff129ec18bc9befe063b8

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
05-04-2024 23:24

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General

Target

2024-04-05_35b32193ef90bd13c8af6aaa5f1f6e99_cryptolocker.exe
Size

128KB
MD5

35b32193ef90bd13c8af6aaa5f1f6e99
SHA1

65e4e72c6bf1a4a39dc12c20e143ceadf564c8ad
SHA256

fa8daac68b8c8bda0d82e025f023516e33e67fcef43ff129ec18bc9befe063b8
SHA512

4bab1d539482a7474c7182dfa5aab6f9fbe35f6244dd77f43ac99403bc31375c5fa30844a06371b300a92d82956bfe0f0286c50ae0bcbd36737711ed802a34e7
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfIuBKLUYOVbvh//i7k:vCjsIOtEvwDpj5H9YvQd2RZ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001220d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001220d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1736	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1964	2024-04-05_35b32193ef90bd13c8af6aaa5f1f6e99_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 1964 wrote to memory of 1736	1964	2024-04-05_35b32193ef90bd13c8af6aaa5f1f6e99_cryptolocker.exe	28
PID 1964 wrote to memory of 1736	1964	2024-04-05_35b32193ef90bd13c8af6aaa5f1f6e99_cryptolocker.exe	28
PID 1964 wrote to memory of 1736	1964	2024-04-05_35b32193ef90bd13c8af6aaa5f1f6e99_cryptolocker.exe	28
PID 1964 wrote to memory of 1736	1964	2024-04-05_35b32193ef90bd13c8af6aaa5f1f6e99_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-05_35b32193ef90bd13c8af6aaa5f1f6e99_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-05_35b32193ef90bd13c8af6aaa5f1f6e99_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1964
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1736

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\misid.exe

Filesize
128KB

MD5
46137fd391e3a2136d3e19ba8c89d136

SHA1
56c72a4debf35b60c80c84d82e5cfe76f5015e64

SHA256
6d8665812f0fe3f3cb28f517172e7439d81d18be113d284267d9aca91e25bfb2

SHA512
71fbc60a9cf5396bc5d400937b6afdf0c3666bb92cac5d6a5b16ab51ad755b6faa540aee4c2ba8d8d58c015d002135cb769d82a9de35057b68e53ddef9d1958a

Download Submit
memory/1736-15-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/1736-22-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1964-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1964-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1964-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download