b5435f266e1c84249202af139948f2dbf7766e1529259932de076bb48d09df46

Analysis

max time kernel
150s
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, 01:31

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General

Target

2024-05-24_72ff99c7f26fb0b4d3e9554f21c09923_cryptolocker.exe
Size

66KB
MD5

72ff99c7f26fb0b4d3e9554f21c09923
SHA1

9a546816ff32af366f707f3898073ea680f31802
SHA256

b5435f266e1c84249202af139948f2dbf7766e1529259932de076bb48d09df46
SHA512

e3561c1c447e2b411de69431c406790d32ee7ed5d07a04f3ce37e15f78c4b690369a7fc9a6c7f96d0e318abe527d695ccb26a7967fb1c6b9437064cb4c06c49c
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2l9tMPvdfGyX:TCjsIOtEvwDpj5HE/OUHnSMYs

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2224-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000016332-11.dat	CryptoLocker_rule2
behavioral1/memory/2224-14-0x0000000002480000-0x000000000248E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2224-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2760-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2224-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0009000000016332-11.dat	CryptoLocker_set1
behavioral1/memory/2224-14-0x0000000002480000-0x000000000248E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2224-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2760-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2760	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2224	2024-05-24_72ff99c7f26fb0b4d3e9554f21c09923_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 2224 wrote to memory of 2760	2224	2024-05-24_72ff99c7f26fb0b4d3e9554f21c09923_cryptolocker.exe	28
PID 2224 wrote to memory of 2760	2224	2024-05-24_72ff99c7f26fb0b4d3e9554f21c09923_cryptolocker.exe	28
PID 2224 wrote to memory of 2760	2224	2024-05-24_72ff99c7f26fb0b4d3e9554f21c09923_cryptolocker.exe	28
PID 2224 wrote to memory of 2760	2224	2024-05-24_72ff99c7f26fb0b4d3e9554f21c09923_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-24_72ff99c7f26fb0b4d3e9554f21c09923_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-24_72ff99c7f26fb0b4d3e9554f21c09923_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2760

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
67KB

MD5
2060a9d9a9316feab400640039484bf0

SHA1
321d76b5973551b5de82ce020fd6c856435a5ed9

SHA256
f3cf0398e284ee31be614a2e459abef35a2c848a406d0cb20c1d1094a457b510

SHA512
bf486f01dcd8faf9e526dbcb36309c02ae988cad03e7467b870f4c030ddd5240fa0376f5670c2bdef16d2b48f6acefafff7096b564ee5d72966a8cf5144d2769

Download Submit
memory/2224-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2224-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2224-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2224-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2224-14-0x0000000002480000-0x000000000248E000-memory.dmp

Filesize
56KB

Download
memory/2224-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2760-18-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2760-19-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2760-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download