664660a69c7a86ac4f2eff78653d78b333646ed9185fca87e346f2cb75f9a869

General

Target

2024-03-25_06b4ef04348a2303de0ef7ff865519e4_cryptolocker.exe
Size

42KB
MD5

06b4ef04348a2303de0ef7ff865519e4
SHA1

d69c58c0a6cfdbd90dc3f9a949be39c58a23f18f
SHA256

664660a69c7a86ac4f2eff78653d78b333646ed9185fca87e346f2cb75f9a869
SHA512

3f100836fed84c3d477a88f141ff8c14c834a28ea4f7166b7c86fd609466618b19f68fc1c6f9b1105f102b05352f6f97fcb2a8a82ed8ce1820840668ec9dc30a
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6/CtXfNU:6j+1NMOtEvwDpjrR2XfNU

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 6 IoCs

resource	yara_rule
behavioral1/memory/2164-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d00000001224f-11.dat	CryptoLocker_rule2
behavioral1/memory/2164-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2108-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2164-12-0x0000000001CD0000-0x0000000001CDF000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2108-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 6 IoCs

resource	yara_rule
behavioral1/memory/2164-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000d00000001224f-11.dat	CryptoLocker_set1
behavioral1/memory/2164-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2108-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2164-12-0x0000000001CD0000-0x0000000001CDF000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2108-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 6 IoCs

resource	yara_rule
behavioral1/memory/2164-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000d00000001224f-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2164-15-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2108-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2164-12-0x0000000001CD0000-0x0000000001CDF000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2108-27-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2108	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2164	2024-03-25_06b4ef04348a2303de0ef7ff865519e4_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 2164 wrote to memory of 2108	2164	2024-03-25_06b4ef04348a2303de0ef7ff865519e4_cryptolocker.exe	28
PID 2164 wrote to memory of 2108	2164	2024-03-25_06b4ef04348a2303de0ef7ff865519e4_cryptolocker.exe	28
PID 2164 wrote to memory of 2108	2164	2024-03-25_06b4ef04348a2303de0ef7ff865519e4_cryptolocker.exe	28
PID 2164 wrote to memory of 2108	2164	2024-03-25_06b4ef04348a2303de0ef7ff865519e4_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-25_06b4ef04348a2303de0ef7ff865519e4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-25_06b4ef04348a2303de0ef7ff865519e4_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2164
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2108

Network

DNS

bestccc.com

misid.exe

Remote address:

8.8.8.8:53

Request

bestccc.com

IN A

Response

bestccc.com

IN A

103.14.121.240

103.14.121.240:443

bestccc.com

misid.exe

152 B
3
103.14.121.240:443

bestccc.com

misid.exe

152 B
3
103.14.121.240:443

bestccc.com

misid.exe

152 B
3
103.14.121.240:443

bestccc.com

misid.exe

152 B
3
103.14.121.240:443

bestccc.com

misid.exe

152 B
3
103.14.121.240:443

bestccc.com

misid.exe

152 B
3
103.14.121.240:443

bestccc.com

misid.exe

152 B
3
103.14.121.240:443

bestccc.com

misid.exe

52 B
1

8.8.8.8:53

bestccc.com

dns

misid.exe

57 B
73 B
1
1

DNS Request

bestccc.com

DNS Response

103.14.121.240

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
42KB

MD5
bc5fa28bf5544d325865967365b652eb

SHA1
0782bf71b0e6b69da1e6883b838b097db3e3563c

SHA256
387ed0ec0a25eb2bb35cf2d6356dc628e4fabdac121f19630302fc09172c9b76

SHA512
d228ed74b39eb46d4f52ca8be2b610a699d238f0fe9174f3f08edffe29e7989295ec3497d63f9e7cc5b8863954ca33387ecd2bc1b6fbe49edd510435db086e58

Download Submit
memory/2108-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2108-19-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2108-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2108-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2164-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2164-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2164-2-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2164-4-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2164-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2164-12-0x0000000001CD0000-0x0000000001CDF000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

DNS Request

DNS Response

MITRE ATT&CK Enterprise v15

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Downloads

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