c4d794c7da01bcecf9562f0aa37741cfa5783ca703afd46c887b675ec5149fed

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
24/05/2024, 12:33

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General

Target

2024-05-24_58958746fdb214630091494f68889b31_cryptolocker.exe
Size

47KB
MD5

58958746fdb214630091494f68889b31
SHA1

6afa69f36e57ad866767179ace63d1c18f685b93
SHA256

c4d794c7da01bcecf9562f0aa37741cfa5783ca703afd46c887b675ec5149fed
SHA512

0206fbce8414cf3a7ff6b59f96bda8400ff50e44ae73d8059bf3be74b1ef87d07bc440fe2875aa5ac5fead2889a53d72b1b8311fe839a24ad6741027d320b42b
SSDEEP

768:P6LsoVEeegiZPvEhHSP+gp/QtOOtEvwDpjBBMLZdzuqpXsiE8Wq/DpkKo:P6Q0ElP6G+gJQMOtEvwDpjB8WMlO

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2808-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000014fe1-11.dat	CryptoLocker_rule2
behavioral1/memory/2808-14-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2204-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2808-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000014fe1-11.dat	CryptoLocker_set1
behavioral1/memory/2808-14-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2204-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2204	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2808	2024-05-24_58958746fdb214630091494f68889b31_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 2808 wrote to memory of 2204	2808	2024-05-24_58958746fdb214630091494f68889b31_cryptolocker.exe	28
PID 2808 wrote to memory of 2204	2808	2024-05-24_58958746fdb214630091494f68889b31_cryptolocker.exe	28
PID 2808 wrote to memory of 2204	2808	2024-05-24_58958746fdb214630091494f68889b31_cryptolocker.exe	28
PID 2808 wrote to memory of 2204	2808	2024-05-24_58958746fdb214630091494f68889b31_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-24_58958746fdb214630091494f68889b31_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-24_58958746fdb214630091494f68889b31_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2808
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2204

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
47KB

MD5
a511fc5c814ebb3db3d54bbf978aa551

SHA1
0c47c51dd378ed7e98f54efb1e8984aafc48c666

SHA256
bfa2e1d40ec558554ce49c2f9c2b5c96404c069f6b6c35351e10873122e9ddf7

SHA512
782fe7a0a1e439939b0a136a618134640716e4c896aa95ce460f9129a9bcd830e9fb0baf22dda1a875717949ede1fa6641e7d3a6ff766e0d8c2c04f9cf446954

Download Submit
memory/2204-17-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2204-24-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2204-25-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2808-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2808-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2808-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2808-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2808-14-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download