4cb7005140110b288a083941cf9c5581f927168894ccd1fbe540d47dd3463348

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
04/05/2024, 05:32

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General

Target

2024-05-04_5b8f2925f8659cf175c0ed287ad17883_cryptolocker.exe
Size

83KB
MD5

5b8f2925f8659cf175c0ed287ad17883
SHA1

6334ae9b59988d11b9234696d2014ee470d75bf6
SHA256

4cb7005140110b288a083941cf9c5581f927168894ccd1fbe540d47dd3463348
SHA512

6b2e3ec313e4ccaeea1557e7b9af3dcfbc94ad9796e4bb6d87c22e93973eb228b7804b2522175083334c74666c177206273208642c242e290a8ae9b1baeeb3c7
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMrho:TCjsIOtEvwDpj5HE/OUHnSM0

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2092-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000014c67-13.dat	CryptoLocker_rule2
behavioral1/memory/2516-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2092-18-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2516-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2092-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c000000014c67-13.dat	CryptoLocker_set1
behavioral1/memory/2516-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2092-18-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2516-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2516	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2092	2024-05-04_5b8f2925f8659cf175c0ed287ad17883_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 2092 wrote to memory of 2516	2092	2024-05-04_5b8f2925f8659cf175c0ed287ad17883_cryptolocker.exe	28
PID 2092 wrote to memory of 2516	2092	2024-05-04_5b8f2925f8659cf175c0ed287ad17883_cryptolocker.exe	28
PID 2092 wrote to memory of 2516	2092	2024-05-04_5b8f2925f8659cf175c0ed287ad17883_cryptolocker.exe	28
PID 2092 wrote to memory of 2516	2092	2024-05-04_5b8f2925f8659cf175c0ed287ad17883_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-04_5b8f2925f8659cf175c0ed287ad17883_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-04_5b8f2925f8659cf175c0ed287ad17883_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2092
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2516

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

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

Filesize
83KB

MD5
ec7bd95312920ad08ab4df6ddadec3e7

SHA1
c4594d5c0887a544241024c170e3846a0d1447f6

SHA256
e6b7604d77b961d33050d3a9bd2efd009e3694d29b53525d5fae5bbf7ccd3a3b

SHA512
3eca4c5a83c1088bce2348d55a7853795ad2e06b57387319fcaf8b7e496f40063c5849601a71051cb4c3c38685935ecff125c1098b2244eadd091f13f3134161

Download Submit
memory/2092-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2092-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2092-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2092-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2092-15-0x0000000001E70000-0x0000000001E7E000-memory.dmp

Filesize
56KB

Download
memory/2092-18-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2516-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2516-19-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2516-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download