27d1521b481a697c2c48557f887a78d73304655833b8f2e9931ed17fdd5cb466

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
25/05/2024, 04:08

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General

Target

2024-05-25_c96f0ce69b92a64a417cee13352db579_cryptolocker.exe
Size

67KB
MD5

c96f0ce69b92a64a417cee13352db579
SHA1

a2bc17f5dcc2ed89e26997a36391ebdc7f18a9d1
SHA256

27d1521b481a697c2c48557f887a78d73304655833b8f2e9931ed17fdd5cb466
SHA512

96c5f0fadaf72bb5da46dc34d959709f2835463ed27dd0677b92a507514e4b47f24da6631be0ca5a9edf42d3db8634162ae032a683630239c860ef27c2ad1093
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2l9tMPvdfGyB:TCjsIOtEvwDpj5HE/OUHnSMYG

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2064-1-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2064-14-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d000000015d59-15.dat	CryptoLocker_rule2
behavioral1/memory/3048-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3048-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2064-1-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2064-14-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000d000000015d59-15.dat	CryptoLocker_set1
behavioral1/memory/3048-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3048-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3048	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2064	2024-05-25_c96f0ce69b92a64a417cee13352db579_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 2064 wrote to memory of 3048	2064	2024-05-25_c96f0ce69b92a64a417cee13352db579_cryptolocker.exe	28
PID 2064 wrote to memory of 3048	2064	2024-05-25_c96f0ce69b92a64a417cee13352db579_cryptolocker.exe	28
PID 2064 wrote to memory of 3048	2064	2024-05-25_c96f0ce69b92a64a417cee13352db579_cryptolocker.exe	28
PID 2064 wrote to memory of 3048	2064	2024-05-25_c96f0ce69b92a64a417cee13352db579_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-25_c96f0ce69b92a64a417cee13352db579_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-25_c96f0ce69b92a64a417cee13352db579_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2064
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3048

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

C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
67KB

MD5
bfdac6e8bd7c5838e6468a672d2440db

SHA1
0597c722b39925dfeea8a8278d981fea8be23744

SHA256
3f9a5e2a2d5b4f0de1e9e4614529f761e454cdd79ecf61b8426363a0bec99c7c

SHA512
8dd9d7017c80abeb0068184b2b4784a73083826d0b7572afb12bd10f0aa18ae01e150b67b571be27cb5f2d67e6431b1cbdac7c6f52f99aa03e96045b15fdf284

Download Submit
memory/2064-0-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2064-1-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2064-9-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2064-2-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2064-14-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/3048-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/3048-25-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/3048-18-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/3048-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download