8d2ced20c4a31ece7511216cdba0de7e71f2f36f6d4adcbd05a89468218e77d0

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28-02-2024 10:30

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General

Target

2024-02-28_265e16d417993cbcf2cffe88d5fc6301_cryptolocker.exe
Size

90KB
MD5

265e16d417993cbcf2cffe88d5fc6301
SHA1

35a3613cde27c21d91dc7a14ca0c7c4435442d84
SHA256

8d2ced20c4a31ece7511216cdba0de7e71f2f36f6d4adcbd05a89468218e77d0
SHA512

2f02a266a3ac5615466cb6b54e294cd7a02028819eb52f242f2d61fc265506f3fcaf3d77c821d9c0e8d716ed5d104212d3c59bac608da1ba83ad98fc162dbf75
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwMgPE:V6a+pOtEvwDpjtzw

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001234b-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001234b-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2964	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1956	2024-02-28_265e16d417993cbcf2cffe88d5fc6301_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 1956 wrote to memory of 2964	1956	2024-02-28_265e16d417993cbcf2cffe88d5fc6301_cryptolocker.exe	28
PID 1956 wrote to memory of 2964	1956	2024-02-28_265e16d417993cbcf2cffe88d5fc6301_cryptolocker.exe	28
PID 1956 wrote to memory of 2964	1956	2024-02-28_265e16d417993cbcf2cffe88d5fc6301_cryptolocker.exe	28
PID 1956 wrote to memory of 2964	1956	2024-02-28_265e16d417993cbcf2cffe88d5fc6301_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-28_265e16d417993cbcf2cffe88d5fc6301_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-28_265e16d417993cbcf2cffe88d5fc6301_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1956
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2964

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
90KB

MD5
74c7ff0d38634a33ad8e7d025e84bbcb

SHA1
e568a1ddc930942ad9d4b78cc54e0077b82a0e7d

SHA256
664fcf06cf8ed9f56e06b083aca53cf271122980803bca6731a88b7acf43d5f3

SHA512
7922cc8e142c66d8d636c0b7155e30eb624a7bddff88d6a5dc1a49694e99f4b8e82463f0c05d4fd8013560ecdd9e004d3f5ae4006aa926b6fca4948c0d0d2166

Download Submit
memory/1956-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1956-2-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/1956-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2964-16-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2964-15-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download