cabd89d64c3567d23b4840951ae134b716e549bcaa0cfb9d5fb13d06a5ced8f3

Analysis

max time kernel
136s
max time network
147s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22/02/2024, 01:33

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General

Target

2024-02-22_8aab31b9956e734f97548bd821a85ea3_cryptolocker.exe
Size

60KB
MD5

8aab31b9956e734f97548bd821a85ea3
SHA1

9d8208f607285ab030925e51e90d0f2a4986cf63
SHA256

cabd89d64c3567d23b4840951ae134b716e549bcaa0cfb9d5fb13d06a5ced8f3
SHA512

8952a413418f1bd5f5f0235f5cf29b1c84845e2b9206fb211989379cba4335272e4539a3ea444cb1c8d164baab9747ddbf504e54dc61908d5d212b71e2501bfc
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMS:TCjsIOtEvwDpj5HE/OUHnSMZ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2220-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c00000001224c-11.dat	CryptoLocker_rule2
behavioral1/memory/2220-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2000-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2000-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2220-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c00000001224c-11.dat	CryptoLocker_set1
behavioral1/memory/2220-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2000-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2000-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2000	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2220	2024-02-22_8aab31b9956e734f97548bd821a85ea3_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 2220 wrote to memory of 2000	2220	2024-02-22_8aab31b9956e734f97548bd821a85ea3_cryptolocker.exe	28
PID 2220 wrote to memory of 2000	2220	2024-02-22_8aab31b9956e734f97548bd821a85ea3_cryptolocker.exe	28
PID 2220 wrote to memory of 2000	2220	2024-02-22_8aab31b9956e734f97548bd821a85ea3_cryptolocker.exe	28
PID 2220 wrote to memory of 2000	2220	2024-02-22_8aab31b9956e734f97548bd821a85ea3_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-22_8aab31b9956e734f97548bd821a85ea3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_8aab31b9956e734f97548bd821a85ea3_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2220
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2000

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
61KB

MD5
b365740a42252fcb298c0134f454b766

SHA1
e55ec26e2961c6367a95256d4605dad01085a692

SHA256
f13714db119b25646ec167685107081510f5609d66bbeb72540684048213feca

SHA512
d4b1318ac9d717f554e0aff171668d73bed457934b33a4dddd80b708077aadf6dab4aabf13a44e1869a6c82e93634e1c0c586b14f342a88fbf3012b64e32e065

Download Submit
memory/2000-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2000-18-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2000-19-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2000-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2220-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2220-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2220-2-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/2220-9-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2220-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download