1442eca75c1d4c1e5afe0cec593be9a430ac8adced18b2adad56b8108fef51bd

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
19/02/2024, 15:33

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General

Target

2024-02-19_3c1f45f7d394bcad38e350022f84b7bf_cryptolocker.exe
Size

101KB
MD5

3c1f45f7d394bcad38e350022f84b7bf
SHA1

550ff67b62a819b3fad06ba436f6ee367de216b4
SHA256

1442eca75c1d4c1e5afe0cec593be9a430ac8adced18b2adad56b8108fef51bd
SHA512

794031dcaf2d244b4d889b2bb4f3ef08ea6ecaab0b93d197b7ad3c66e9a91fb08b91927a57b62662381bd579b031865d6e593b23913b301503e65c25a9608a9d
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mktJHlv/k2nNd:xj+VGMOtEvwDpjubwQEIiVmkxv/TNd

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2708-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000012252-11.dat	CryptoLocker_rule2
behavioral1/memory/2708-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2600-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2600-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2708-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0009000000012252-11.dat	CryptoLocker_set1
behavioral1/memory/2708-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2600-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2600-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/memory/2708-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x0009000000012252-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2708-15-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2600-16-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2600-26-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2600	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2708	2024-02-19_3c1f45f7d394bcad38e350022f84b7bf_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 2708 wrote to memory of 2600	2708	2024-02-19_3c1f45f7d394bcad38e350022f84b7bf_cryptolocker.exe	28
PID 2708 wrote to memory of 2600	2708	2024-02-19_3c1f45f7d394bcad38e350022f84b7bf_cryptolocker.exe	28
PID 2708 wrote to memory of 2600	2708	2024-02-19_3c1f45f7d394bcad38e350022f84b7bf_cryptolocker.exe	28
PID 2708 wrote to memory of 2600	2708	2024-02-19_3c1f45f7d394bcad38e350022f84b7bf_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-19_3c1f45f7d394bcad38e350022f84b7bf_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_3c1f45f7d394bcad38e350022f84b7bf_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2708
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2600

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
101KB

MD5
72736216a0993ff2246b93ae0e8817f1

SHA1
d0070ed306a47821cb074042fc33409b5941651b

SHA256
d5ea9cf70eb69107f6fc936e4fa00a807a7b7692ecd392ced403ff17d7635daf

SHA512
e9d62ad71597ab054718b10bdd9c3a900c48d8bdeb0ad30921bfa357c87765e1fbf3c3b7096d3509b95a840b2954021add321a67968b63b38bcf0eeaa3f6f13c

Download Submit
memory/2600-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2600-19-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2600-18-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2600-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2708-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2708-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2708-2-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2708-8-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2708-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download