7ebfaeea0f9e39d65b07778480a8f2920cc6503c02f4c39d1a023f9d2ad41645

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23/02/2024, 16:30

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General

Target

2024-02-23_2d817fe9027560ec74835d6365c59117_cryptolocker.exe
Size

81KB
MD5

2d817fe9027560ec74835d6365c59117
SHA1

19e933eca61da31c4b67c5faf7a80a9540159fe2
SHA256

7ebfaeea0f9e39d65b07778480a8f2920cc6503c02f4c39d1a023f9d2ad41645
SHA512

be58cc7446c95c882806de3a2e6c9c47618ac82a16704b119e88e9070c8ef320f5a132364542b0c6bdca56999141866ad014a60a712a37bacb885f59cb2c7bee
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMWa:TCjsIOtEvwDpj5HE/OUHnSMN

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1048-1-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1048-14-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0008000000012272-11.dat	CryptoLocker_rule2
behavioral1/memory/2532-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2532-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1048-1-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1048-14-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0008000000012272-11.dat	CryptoLocker_set1
behavioral1/memory/2532-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2532-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2532	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1048	2024-02-23_2d817fe9027560ec74835d6365c59117_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 1048 wrote to memory of 2532	1048	2024-02-23_2d817fe9027560ec74835d6365c59117_cryptolocker.exe	28
PID 1048 wrote to memory of 2532	1048	2024-02-23_2d817fe9027560ec74835d6365c59117_cryptolocker.exe	28
PID 1048 wrote to memory of 2532	1048	2024-02-23_2d817fe9027560ec74835d6365c59117_cryptolocker.exe	28
PID 1048 wrote to memory of 2532	1048	2024-02-23_2d817fe9027560ec74835d6365c59117_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-23_2d817fe9027560ec74835d6365c59117_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_2d817fe9027560ec74835d6365c59117_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1048
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2532

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
81KB

MD5
01eef2fc847766b0cdc21888aaa1e52c

SHA1
59795ca6542c0f38c00fd3b24171a69e3d6519b6

SHA256
747a89be53c033888472612e5ed424ae361a1b95d59bad3a23d7d09339bdf731

SHA512
6a94b738848a6818d99b0f2b8042e22944b946a834c41853fac5a06ddbc04cb7cbba29b7b5f1ff833b2d71c0c8fc2219870c05429e86d25aa47dfa5dfc66a8bf

Download Submit
memory/1048-1-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1048-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1048-2-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1048-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1048-14-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2532-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2532-18-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/2532-21-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2532-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download